源码下载地址：https://gitee.com/raymond9/kubernetes-ansible
1.高可用Kubernetes集群规划
| 角色 | 机器名 | 机器配置 | ip地址 | 安装软件 |
|---|---|---|---|---|
| ansible | ansible-server.example.local | 2C2G | 172.31.3.100 | ansible |
| master1 | k8s-master01.example.local | 2C4G | 172.31.3.101 | chrony-client、docker、kubeadm 、kubelet、kubectl |
| master2 | k8s-master02.example.local | 2C4G | 172.31.3.102 | chrony-client、docker、kubeadm 、kubelet、kubectl |
| master3 | k8s-master03.example.local | 2C4G | 172.31.3.103 | chrony-client、docker、kubeadm 、kubelet、kubectl |
| ha1 | k8s-ha01.example.local | 2C2G | 172.31.3.104 | chrony-server、haproxy、keepalived |
| ha2 | k8s-ha02.example.local | 2C2G | 172.31.3.105 | chrony-server、haproxy、keepalived |
| harbor1 | k8s-harbor01.example.local | 2C2G | 172.31.3.106 | chrony-client、docker、docker-compose、harbor |
| harbor2 | k8s-harbor02.example.local | 2C2G | 172.31.3.107 | chrony-client、docker、docker-compose、harbor |
| node1 | k8s-node01.example.local | 2C4G | 172.31.3.108 | chrony-client、docker、kubeadm 、kubelet |
| node2 | k8s-node02.example.local | 2C4G | 172.31.3.109 | chrony-client、docker、kubeadm 、kubelet |
| node3 | k8s-node03.example.local | 2C4G | 172.31.3.110 | chrony-client、docker、kubeadm 、kubelet |
软件版本信息和Pod、Service网段规划：
| 配置信息 | 备注 |
|---|---|
| 支持的操作系统版本 | CentOS 7.9/stream 8、Rocky 8、Ubuntu 18.04/20.04 |
| Docker版本 | 20.10.14 |
| kubeadm版本 | 1.22.8 |
| Pod网段 | 192.168.0.0/12 |
| Service网段 | 10.96.0.0/12 |
2.安装ansible和配置
2.1 安装ansible
#CentOS
[root@ansible-server ~]# yum -y install ansible
[root@ansible-server ~]# ansible --version
ansible 2.9.25
config file = /data/ansible/ansible.cfg
configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
ansible python module location = /usr/lib/python2.7/site-packages/ansible
executable location = /usr/bin/ansible
python version = 2.7.5 (default, Oct 14 2020, 14:45:30) [GCC 4.8.5 20150623 (Red Hat 4.8.5-44)]
#ubuntu18.04安装最新版的ansible
root@ubuntu1804:~# apt update
root@ubuntu1804:~# apt -y install software-properties-common
root@ubuntu1804:~# apt-add-repository --yes --update ppa:ansible/ansible
root@ubuntu1804:~# apt -y install ansible
root@ubuntu1804:~# ansible --version
ansible 2.9.27
config file = /etc/ansible/ansible.cfg
configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
ansible python module location = /usr/lib/python2.7/dist-packages/ansible
executable location = /usr/bin/ansible
python version = 2.7.17 (default, Feb 27 2021, 15:10:58) [GCC 7.5.0]
#ubuntu 20.04安装
[root@ubuntu ~]# apt -y install ansible
2.2 配置ansible
[root@ansible-server ~]# mkdir /data/ansible
[root@ansible-server ~]# cd /data/ansible
[root@ansible-server ansible]# vim ansible.cfg
[defaults]
inventory = ./inventory
forks = 10
roles_path = ./roles
remote_user = root
#下面的IP根据自己的k8s集群主机规划设置
[root@ansible-server ansible]# vim inventory
[master]
172.31.3.101 hname=k8s-master01
172.31.3.102 hname=k8s-master02
172.31.3.103 hname=k8s-master03
[ha]
172.31.3.104 hname=k8s-ha01
172.31.3.105 hname=k8s-ha02
[harbor]
172.31.3.106 hname=k8s-harbor01
172.31.3.107 hname=k8s-harbor02
[node]
172.31.3.108 hname=k8s-node01
172.31.3.109 hname=k8s-node02
172.31.3.110 hname=k8s-node03
[all:vars]
domain=example.local
[k8s_cluster:children]
master
node
[chrony_server:children]
ha
[chrony_client:children]
master
node
harbor
[keepalives_master]
172.31.3.104
[keepalives_backup]
172.31.3.105
[haproxy:children]
ha
[master01]
172.31.3.101
3.设置客户端网卡名和ip
#rocky8和centos系统设置
[root@172 ~]# bash reset.sh
************************************************************
* 初始化脚本菜单 *
* 1.禁用SELinux 12.修改IP地址和网关地址 *
* 2.关闭防火墙 13.设置主机名 *
* 3.优化SSH 14.设置PS1和系统环境变量 *
* 4.设置系统别名 15.禁用SWAP *
* 5.1-4全设置 16.优化内核参数 *
* 6.设置vimrc配置文件 17.优化资源限制参数 *
* 7.设置软件包仓库 18.Ubuntu设置root用户登录 *
* 8.Minimal安装建议安装软件 19.Ubuntu卸载无用软件包 *
* 9.安装邮件服务并配置邮件 20.重启系统 *
* 10.更改SSH端口号 21.退出 *
* 11.修改网卡名 *
************************************************************
请选择相应的编号(1-21): 11
Rocky 8.5 网卡名已修改成功，请重新启动系统后才能生效!
************************************************************
* 初始化脚本菜单 *
* 1.禁用SELinux 12.修改IP地址和网关地址 *
* 2.关闭防火墙 13.设置主机名 *
* 3.优化SSH 14.设置PS1和系统环境变量 *
* 4.设置系统别名 15.禁用SWAP *
* 5.1-4全设置 16.优化内核参数 *
* 6.设置vimrc配置文件 17.优化资源限制参数 *
* 7.设置软件包仓库 18.Ubuntu设置root用户登录 *
* 8.Minimal安装建议安装软件 19.Ubuntu卸载无用软件包 *
* 9.安装邮件服务并配置邮件 20.重启系统 *
* 10.更改SSH端口号 21.退出 *
* 11.修改网卡名 *
************************************************************
请选择相应的编号(1-21): 12
请输入IP地址:172.31.0.101
IP 172.31.0.101 available!
请输入子网掩码位数:21
请输入网关地址:172.31.0.2
IP 172.31.0.2 available!
Rocky 8.5 IP地址和网关地址已修改成功,请重新启动系统后生效!
************************************************************
* 初始化脚本菜单 *
* 1.禁用SELinux 12.修改IP地址和网关地址 *
* 2.关闭防火墙 13.设置主机名 *
* 3.优化SSH 14.设置PS1和系统环境变量 *
* 4.设置系统别名 15.禁用SWAP *
* 5.1-4全设置 16.优化内核参数 *
* 6.设置vimrc配置文件 17.优化资源限制参数 *
* 7.设置软件包仓库 18.Ubuntu设置root用户登录 *
* 8.Minimal安装建议安装软件 19.Ubuntu卸载无用软件包 *
* 9.安装邮件服务并配置邮件 20.重启系统 *
* 10.更改SSH端口号 21.退出 *
* 11.修改网卡名 *
************************************************************
请选择相应的编号(1-21): 21
#ubuntu系统设置
[C:\~]$ ssh [email protected]
Connecting to 172.31.7.3:22...
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.
Welcome to Ubuntu 18.04.6 LTS (GNU/Linux 4.15.0-156-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information as of Mon Dec 27 13:56:42 CST 2021
System load: 0.17 Processes: 193
Usage of /: 2.1% of 91.17GB Users logged in: 1
Memory usage: 10% IP address for ens33: 172.31.7.3
Swap usage: 0%
* Super-optimized for small spaces - read how we shrank the memory
footprint of MicroK8s to make it the smallest full K8s around.
https://ubuntu.com/blog/microk8s-memory-optimisation
19 updates can be applied immediately.
18 of these updates are standard security updates.
To see these additional updates run: apt list --upgradable
New release '20.04.3 LTS' available.
Run 'do-release-upgrade' to upgrade to it.
Last login: Mon Dec 27 13:56:31 2021
/usr/bin/xauth: file /home/raymond/.Xauthority does not exist
To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.
raymond@ubuntu1804:~$ bash reset.sh
************************************************************
* 初始化脚本菜单 *
* 1.禁用SELinux 12.修改IP地址和网关地址 *
* 2.关闭防火墙 13.设置主机名 *
* 3.优化SSH 14.设置PS1和系统环境变量 *
* 4.设置系统别名 15.禁用SWAP *
* 5.1-4全设置 16.优化内核参数 *
* 6.设置vimrc配置文件 17.优化资源限制参数 *
* 7.设置软件包仓库 18.Ubuntu设置root用户登录 *
* 8.Minimal安装建议安装软件 19.Ubuntu卸载无用软件包 *
* 9.安装邮件服务并配置邮件 20.重启系统 *
* 10.更改SSH端口号 21.退出 *
* 11.修改网卡名 *
************************************************************
请选择相应的编号(1-21): 18
请输入密码: 123456
[sudo] password for raymond: Enter new UNIX password: Retype new UNIX password: passwd: password updated successfully
Ubuntu 18.04 root用户登录已设置完成,请重新登录后生效!
************************************************************
* 初始化脚本菜单 *
* 1.禁用SELinux 12.修改IP地址和网关地址 *
* 2.关闭防火墙 13.设置主机名 *
* 3.优化SSH 14.设置PS1和系统环境变量 *
* 4.设置系统别名 15.禁用SWAP *
* 5.1-4全设置 16.优化内核参数 *
* 6.设置vimrc配置文件 17.优化资源限制参数 *
* 7.设置软件包仓库 18.Ubuntu设置root用户登录 *
* 8.Minimal安装建议安装软件 19.Ubuntu卸载无用软件包 *
* 9.安装邮件服务并配置邮件 20.重启系统 *
* 10.更改SSH端口号 21.退出 *
* 11.修改网卡名 *
************************************************************
请选择相应的编号(1-21): 21
raymond@ubuntu1804:~$ exit
logout
Connection closed.
Disconnected from remote host(172.31.7.3:22) at 13:57:16.
Type `help' to learn how to use Xshell prompt.
[C:\~]$ ssh [email protected]
Connecting to 172.31.7.3:22...
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.
Welcome to Ubuntu 18.04.6 LTS (GNU/Linux 4.15.0-156-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information as of Mon Dec 27 13:57:47 CST 2021
System load: 0.06 Processes: 199
Usage of /: 2.1% of 91.17GB Users logged in: 1
Memory usage: 11% IP address for ens33: 172.31.7.3
Swap usage: 0%
* Super-optimized for small spaces - read how we shrank the memory
footprint of MicroK8s to make it the smallest full K8s around.
https://ubuntu.com/blog/microk8s-memory-optimisation
19 updates can be applied immediately.
18 of these updates are standard security updates.
To see these additional updates run: apt list --upgradable
New release '20.04.3 LTS' available.
Run 'do-release-upgrade' to upgrade to it.
The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.
/usr/bin/xauth: file /root/.Xauthority does not exist
root@ubuntu1804:~# mv /home/raymond/reset.sh .
root@ubuntu1804:~# bash reset.sh
************************************************************
* 初始化脚本菜单 *
* 1.禁用SELinux 12.修改IP地址和网关地址 *
* 2.关闭防火墙 13.设置主机名 *
* 3.优化SSH 14.设置PS1和系统环境变量 *
* 4.设置系统别名 15.禁用SWAP *
* 5.1-4全设置 16.优化内核参数 *
* 6.设置vimrc配置文件 17.优化资源限制参数 *
* 7.设置软件包仓库 18.Ubuntu设置root用户登录 *
* 8.Minimal安装建议安装软件 19.Ubuntu卸载无用软件包 *
* 9.安装邮件服务并配置邮件 20.重启系统 *
* 10.更改SSH端口号 21.退出 *
* 11.修改网卡名 *
************************************************************
请选择相应的编号(1-21): 11
Ubuntu 18.04 网卡名已修改成功，请重新启动系统后才能生效!
************************************************************
* 初始化脚本菜单 *
* 1.禁用SELinux 12.修改IP地址和网关地址 *
* 2.关闭防火墙 13.设置主机名 *
* 3.优化SSH 14.设置PS1和系统环境变量 *
* 4.设置系统别名 15.禁用SWAP *
* 5.1-4全设置 16.优化内核参数 *
* 6.设置vimrc配置文件 17.优化资源限制参数 *
* 7.设置软件包仓库 18.Ubuntu设置root用户登录 *
* 8.Minimal安装建议安装软件 19.Ubuntu卸载无用软件包 *
* 9.安装邮件服务并配置邮件 20.重启系统 *
* 10.更改SSH端口号 21.退出 *
* 11.修改网卡名 *
************************************************************
请选择相应的编号(1-21): 12
请输入IP地址:172.31.0.103
IP 172.31.0.103 available!
请输入子网掩码位数:21
请输入网关地址:172.31.0.2
IP 172.31.0.2 available!
Ubuntu 18.04 IP地址和网关地址已修改成功,请重新启动系统后生效!
************************************************************
* 初始化脚本菜单 *
* 1.禁用SELinux 12.修改IP地址和网关地址 *
* 2.关闭防火墙 13.设置主机名 *
* 3.优化SSH 14.设置PS1和系统环境变量 *
* 4.设置系统别名 15.禁用SWAP *
* 5.1-4全设置 16.优化内核参数 *
* 6.设置vimrc配置文件 17.优化资源限制参数 *
* 7.设置软件包仓库 18.Ubuntu设置root用户登录 *
* 8.Minimal安装建议安装软件 19.Ubuntu卸载无用软件包 *
* 9.安装邮件服务并配置邮件 20.重启系统 *
* 10.更改SSH端口号 21.退出 *
* 11.修改网卡名 *
************************************************************
请选择相应的编号(1-21): 21
4.实现基于key验证的脚本
#下面的IP根据自己的k8s集群主机规划设置
[root@ansible-server ansible]# cat ssh_key.sh
#!/bin/bash
#
#**********************************************************************************************
#Author: Raymond
#QQ: 88563128
#Date: 2021-12-20
#FileName: ssh_key.sh
#URL: raymond.blog.csdn.net
#Description: ssh_key for CentOS 7/8 & Ubuntu 18.04/24.04 & Rocky 8
#Copyright (C): 2021 All rights reserved
#*********************************************************************************************
COLOR="echo -e \\033[01;31m"
END='\033[0m'
NET_NAME=`ip addr |awk -F"[: ]" '/^2: e.*/{print $3}'`
IP=`ip addr show ${
NET_NAME}| awk -F" +|/" '/global/{print $3}'`
export SSHPASS=123456
HOSTS="
172.31.3.101
172.31.3.102
172.31.3.103
172.31.3.104
172.31.3.105
172.31.3.106
172.31.3.107
172.31.3.108
172.31.3.109
172.31.3.110
172.31.3.188"
os(){
OS_ID=`sed -rn '/^NAME=/s@.*="([[:alpha:]]+).*"$@\1@p' /etc/os-release`
}
ssh_key_push(){
rm -f ~/.ssh/id_rsa*
ssh-keygen -f /root/.ssh/id_rsa -P '' &> /dev/null
if [ ${OS_ID} == "CentOS" -o ${OS_ID} == "Rocky" ] &> /dev/null;then
rpm -q sshpass &> /dev/null || {
${COLOR}"安装sshpass软件包"${END};yum -y install sshpass &> /dev/null; }
else
dpkg -S sshpass &> /dev/null || {
${COLOR}"安装sshpass软件包"${END};apt -y install sshpass &> /dev/null; }
fi
sshpass -e ssh-copy-id -o StrictHostKeyChecking=no ${IP} &> /dev/null
[ $? -eq 0 ] && echo ${IP} is finished || echo ${IP} is false
for i in ${HOSTS};do
sshpass -e scp -o StrictHostKeyChecking=no -r /root/.ssh root@${i}: &> /dev/null
[ $? -eq 0 ] && echo ${i} is finished || echo ${i} is false
done
for i in ${HOSTS};do
scp /root/.ssh/known_hosts ${i}:.ssh/ &> /dev/null
[ $? -eq 0 ] && echo ${i} is finished || echo ${i} is false
done
}
main(){
os
ssh_key_push
}
main
[root@ansible-server ansible]# bash ssh_key.sh
172.31.3.100 is finished
172.31.3.101 is finished
172.31.3.102 is finished
172.31.3.103 is finished
172.31.3.104 is finished
172.31.3.105 is finished
172.31.3.106 is finished
172.31.3.107 is finished
172.31.3.108 is finished
172.31.3.109 is finished
172.31.3.110 is finished
172.31.3.101 is finished
172.31.3.102 is finished
172.31.3.103 is finished
172.31.3.104 is finished
172.31.3.105 is finished
172.31.3.106 is finished
172.31.3.107 is finished
172.31.3.108 is finished
172.31.3.109 is finished
172.31.3.110 is finished
5.系统初始化和安装软件包
5.1 系统初始化
[root@ansible-server ansible]# mkdir -p roles/reset/{tasks,templates,vars}
[root@ansible-server ansible]# cd roles/reset/
[root@ansible-server reset]# ls
tasks templates vars
[root@ansible-server reset]# vim templates/yum8.repo.j2
[BaseOS]
name=BaseOS
{
% if ansible_distribution =="Rocky" %}
baseurl=https://{
{
ROCKY_URL }}/rocky/$releasever/BaseOS/$basearch/os/
{
% elif ansible_distribution=="CentOS" %}
baseurl=https://{
{
URL }}/centos/$releasever-stream/BaseOS/$basearch/os/
{
% endif %}
gpgcheck=1
{
% if ansible_distribution =="Rocky" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rockyofficial
{
% elif ansible_distribution=="CentOS" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
{
% endif %}
[AppStream]
name=AppStream
{
% if ansible_distribution =="Rocky" %}
baseurl=https://{
{
ROCKY_URL }}/rocky/$releasever/AppStream/$basearch/os/
{
% elif ansible_distribution=="CentOS" %}
baseurl=https://{
{
URL }}/centos/$releasever-stream/AppStream/$basearch/os/
{
% endif %}
gpgcheck=1
{
% if ansible_distribution =="Rocky" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rockyofficial
{
% elif ansible_distribution=="CentOS" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
{
% endif %}
[extras]
name=extras
{
% if ansible_distribution =="Rocky" %}
baseurl=https://{
{
ROCKY_URL }}/rocky/$releasever/extras/$basearch/os/
{
% elif ansible_distribution=="CentOS" %}
baseurl=https://{
{
URL }}/centos/$releasever-stream/extras/$basearch/os/
{
% endif %}
gpgcheck=1
{
% if ansible_distribution =="Rocky" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rockyofficial
{
% elif ansible_distribution=="CentOS" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
{
% endif %}
{
% if ansible_distribution =="Rocky" %}
[plus]
{
% elif ansible_distribution=="CentOS" %}
[centosplus]
{
% endif %}
{
% if ansible_distribution =="Rocky" %}
name=plus
{
% elif ansible_distribution=="CentOS" %}
name=centosplus
{
% endif %}
{
% if ansible_distribution =="Rocky" %}
baseurl=https://{
{
ROCKY_URL }}/rocky/$releasever/plus/$basearch/os/
{
% elif ansible_distribution=="CentOS" %}
baseurl=https://{
{
URL }}/centos/$releasever-stream/centosplus/$basearch/os/
{
% endif %}
gpgcheck=1
{
% if ansible_distribution =="Rocky" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rockyofficial
{
% elif ansible_distribution=="CentOS" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
{
% endif %}
[PowerTools]
name=PowerTools
{
% if ansible_distribution =="Rocky" %}
baseurl=https://{
{
ROCKY_URL }}/rocky/$releasever/PowerTools/$basearch/os/
{
% elif ansible_distribution=="CentOS" %}
baseurl=https://{
{
URL }}/centos/$releasever-stream/PowerTools/$basearch/os/
{
% endif %}
gpgcheck=1
{
% if ansible_distribution =="Rocky" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rockyofficial
{
% elif ansible_distribution=="CentOS" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
{
% endif %}
[epel]
name=epel
{
% if ansible_distribution =="Rocky" %}
baseurl=https://{
{
ROCKY_URL }}/fedora/epel/$releasever/Everything/$basearch/
{
% elif ansible_distribution=="CentOS" %}
baseurl=https://{
{
URL }}/epel/$releasever/Everything/$basearch/
{
% endif %}
gpgcheck=1
{
% if ansible_distribution =="Rocky" %}
gpgkey=https://{
{
ROCKY_URL }}/fedora/epel/RPM-GPG-KEY-EPEL-$releasever
{
% elif ansible_distribution=="CentOS" %}
gpgkey=https://{
{
URL }}/epel/RPM-GPG-KEY-EPEL-$releasever
{
% endif %}
[root@ansible-server reset]# vim templates/yum7.repo.j2
[base]
name=base
baseurl=https://{
{
URL }}/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-$releasever
[extras]
name=extras
baseurl=https://{
{
URL }}/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-$releasever
[updates]
name=updates
baseurl=https://{
{
URL }}/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-$releasever
[centosplus]
name=centosplus
baseurl=https://{
{
URL }}/centos/$releasever/centosplus/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-$releasever
[epel]
name=epel
baseurl=https://{
{
URL }}/epel/$releasever/$basearch/
gpgcheck=1
gpgkey=https://{
{
URL }}/epel/RPM-GPG-KEY-EPEL-$releasever
[root@ansible-server reset]# vim templates/apt.list.j2
deb http://{
{
URL }}/ubuntu/ {
{
ansible_distribution_release }} main restricted universe multiverse
deb-src http://{
{
URL }}/ubuntu/ {
{
ansible_distribution_release }} main restricted universe multiverse
deb http://{
{
URL }}/ubuntu/ {
{
ansible_distribution_release }}-security main restricted universe multiverse
deb-src http://{
{
URL }}/ubuntu/ {
{
ansible_distribution_release }}-security main restricted universe multiverse
deb http://{
{
URL }}/ubuntu/ {
{
ansible_distribution_release }}-updates main restricted universe multiverse
deb-src http://{
{
URL }}/ubuntu/ {
{
ansible_distribution_release }}-updates main restricted universe multiverse
deb http://{
{
URL }}/ubuntu/ {
{
ansible_distribution_release }}-proposed main restricted universe multiverse
deb-src http://{
{
URL }}/ubuntu/ {
{
ansible_distribution_release }}-proposed main restricted universe multiverse
deb http://{
{
URL }}/ubuntu/ {
{
ansible_distribution_release }}-backports main restricted universe multiverse
deb-src http://{
{
URL }}/ubuntu/ {
{
ansible_distribution_release }}-backports main restricted universe multiverse
#下面VIP设置成自己的keepalived里的VIP(虚拟IP)地址，HARBOR_DOMAIN的地址设置成自己的harbor域名地址
[root@ansible-server reset]# vim vars/main.yml
VIP: 172.31.3.188
HARBOR_DOMAIN: harbor.raymonds.cc
ROCKY_URL: mirrors.ustc.edu.cn
URL: mirrors.cloud.tencent.com
[root@ansible-server reset]# vim tasks/set_hostname.yml
- name: set hostname
hostname:
name: "{
{ hname }}.{
{ domain }}"
[root@ansible-server reset]# vim tasks/set_hosts.yml
- name: set hosts file
lineinfile:
path: "/etc/hosts"
line: "{
{ item }} {
{hostvars[item].ansible_hostname}}.{
{ domain }} {
{hostvars[item].ansible_hostname}}"
loop:
"{
{ play_hosts }}"
- name: set hosts file2
lineinfile:
path: "/etc/hosts"
line: "{
{ item }}"
loop:
- "{
{ VIP }} k8s-lb"
- "{
{ VIP }} {
{ HARBOR_DOMAIN }}"
[root@ansible-server reset]# vim tasks/disable_selinux.yml
- name: disable selinux
replace:
path: /etc/sysconfig/selinux
regexp: '^(SELINUX=).*'
replace: '\1disabled'
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
[root@ansible-server reset]# vim tasks/disable_firewall.yml
- name: disable firewall
systemd:
name: firewalld
state: stopped
enabled: no
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- name: disable ufw
systemd:
name: ufw
state: stopped
enabled: no
when:
- ansible_distribution=="Ubuntu"
[root@ansible-server reset]# vim tasks/disable_networkmanager.yml
- name: disable NetworkManager
systemd:
name: NetworkManager
state: stopped
enabled: no
when:
- ansible_distribution=="CentOS"
- ansible_distribution_major_version=="7"
[root@ansible-server reset]# vim tasks/disable_swap.yml
- name: disable swap
replace:
path: /etc/fstab
regexp: '^(.*swap.*)'
replace: '#\1'
- name: get sd number
shell:
cmd: lsblk|awk -F"[ └─]" '/SWAP/{printf $3}'
register: SD_NAME
when:
- ansible_distribution=="Ubuntu"
- ansible_distribution_major_version=="20"
- name: disable swap for ubuntu20
shell:
cmd: systemctl mask dev-{
{
SD_NAME.stdout}}.swap
when:
- ansible_distribution=="Ubuntu"
- ansible_distribution_major_version=="20"
[root@ansible-server reset]# vim tasks/set_limits.yml
- name: set limit
shell:
cmd: ulimit -SHn 65535
- name: set limits.conf file
lineinfile:
path: "/etc/security/limits.conf"
line: "{
{ item }}"
loop:
- "* soft nofile 655360"
- "* hard nofile 131072"
- "* soft nproc 655350"
- "* hard nproc 655350"
- "* soft memlock unlimited"
- "* hard memlock unlimited"
[root@ansible-server reset]# vim tasks/optimization_sshd.yml
- name: optimization sshd disable UseDNS
replace:
path: /etc/ssh/sshd_config
regexp: '^#(UseDNS).*'
replace: '\1 no'
- name: optimization sshd diaable CentOS or Rocky GSSAPIAuthentication
replace:
path: /etc/ssh/sshd_config
regexp: '^(GSSAPIAuthentication).*'
replace: '\1 no'
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- name: optimization sshd diaable Ubuntu GSSAPIAuthentication
replace:
path: /etc/ssh/sshd_config
regexp: '^#(GSSAPIAuthentication).*'
replace: '\1 no'
notify:
- restart sshd
when:
- ansible_distribution=="Ubuntu"
[root@ansible-server reset]# vim tasks/set_alias.yml
- name: set CentOS or Rocky alias
lineinfile:
path: ~/.bashrc
line: "{
{ item }}"
loop:
- "alias cdnet=\"cd /etc/sysconfig/network-scripts\""
- "alias vie0=\"vim /etc/sysconfig/network-scripts/ifcfg-eth0\""
- "alias vie1=\"vim /etc/sysconfig/network-scripts/ifcfg-eth1\""
- "alias scandisk=\"echo '- - -' > /sys/class/scsi_host/host0/scan;echo '- - -' > /sys/class/scsi_host/host1/scan;echo '- - -' > /sys/class/scsi_host/host2/scan\""
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- name: set Ubuntu alias
lineinfile:
path: ~/.bashrc
line: "{
{ item }}"
loop:
- "alias cdnet=\"cd /etc/netplan\""
- "alias scandisk=\"echo '- - -' > /sys/class/scsi_host/host0/scan;echo '- - -' > /sys/class/scsi_host/host1/scan;echo '- - -' > /sys/class/scsi_host/host2/scan\""
when:
- ansible_distribution=="Ubuntu"
[root@ansible-server reset]# vim tasks/set_mirror.yml
- name: find CentOS or Rocky repo files
find:
paths: /etc/yum.repos.d/
patterns: "*.repo"
register: FILENAME
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- name: delete CentOS or Rocky repo files
file:
path: "{
{ item.path }}"
state: absent
with_items: "{
{ FILENAME.files }}"
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- name: set CentOS8 or Rocky8 Mirror warehouse
template:
src: yum8.repo.j2
dest: /etc/yum.repos.d/base.repo
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- ansible_distribution_major_version=="8"
- name: set CentOS7 Mirror warehouse
template:
src: yum7.repo.j2
dest: /etc/yum.repos.d/base.repo
when:
- ansible_distribution=="CentOS"
- ansible_distribution_major_version=="7"
- name: set Ubuntu Mirror warehouse
template:
src: apt.list.j2
dest: /etc/apt/sources.list
when:
- ansible_distribution=="Ubuntu"
- name: delete lock files
file:
path: "{
{ item }}"
state: absent
loop:
- /var/lib/dpkg/lock
- /var/lib/apt/lists/lock
- /var/cache/apt/archives/lock
when:
- ansible_distribution=="Ubuntu"
- name: apt update
apt:
update_cache: yes
force: yes
when:
- ansible_distribution=="Ubuntu"
[root@ansible-server reset]# vim tasks/main.yml
- include: set_hostname.yml
- include: set_hosts.yml
- include: disable_selinux.yml
- include: disable_firewall.yml
- include: disable_networkmanager.yml
- include: disable_swap.yml
- include: set_limits.yml
- include: optimization_sshd.yml
- include: set_alias.yml
- include: set_mirror.yml
[root@ansible-server reset]# cd ../../
[root@ansible-server ansible]# tree roles/reset/
[root@ansible-server ansible]# tree roles/reset/
roles/reset/
├── tasks
│ ├── disable_firewall.yml
│ ├── disable_networkmanager.yml
│ ├── disable_selinux.yml
│ ├── disable_swap.yml
│ ├── main.yml
│ ├── optimization_sshd.yml
│ ├── set_alias.yml
│ ├── set_hostname.yml
│ ├── set_hosts.yml
│ ├── set_limits.yml
│ └── set_mirror.yml
├── templates
│ ├── apt.list.j2
│ ├── yum7.repo.j2
│ └── yum8.repo.j2
└── vars
└── main.yml
3 directories, 15 files
[root@ansible-server ansible]# vim reset_role.yml
---
- hosts: all
roles:
- role: reset
[root@ansible-server ansible]# ansible-playbook reset_role.yml
5.2 安装软件包
[root@ansible-server ansible]# mkdir -p roles/reset-installpackage/{files,tasks}
[root@ansible-server ansible]# cd roles/reset-installpackage/
[root@ansible-server reset-installpackage]# ls
files tasks
[root@ansible-server reset-installpackage]# wget http://193.49.22.109/elrepo/kernel/el7/x86_64/RPMS/kernel-ml-devel-4.19.12-1.el7.elrepo.x86_64.rpm -P files/
[root@ansible-server reset-installpackage]# wget http://193.49.22.109/elrepo/kernel/el7/x86_64/RPMS/kernel-ml-4.19.12-1.el7.elrepo.x86_64.rpm -P files/
[root@ansible-server reset-installpackage]# vim files/ge4.18_ipvs.conf
ip_vs
ip_vs_lc
ip_vs_wlc
ip_vs_rr
ip_vs_wrr
ip_vs_lblc
ip_vs_lblcr
ip_vs_dh
ip_vs_sh
ip_vs_fo
ip_vs_nq
ip_vs_sed
ip_vs_ftp
ip_vs_sh
nf_conntrack
ip_tables
ip_set
xt_set
ipt_set
ipt_rpfilter
ipt_REJECT
ipip
[root@ansible-server reset-installpackage]# vim files/lt4.18_ipvs.conf
ip_vs
ip_vs_lc
ip_vs_wlc
ip_vs_rr
ip_vs_wrr
ip_vs_lblc
ip_vs_lblcr
ip_vs_dh
ip_vs_sh
ip_vs_fo
ip_vs_nq
ip_vs_sed
ip_vs_ftp
ip_vs_sh
nf_conntrack_ipv4
ip_tables
ip_set
xt_set
ipt_set
ipt_rpfilter
ipt_REJECT
ipip
[root@ansible-server reset-installpackage]# vim files/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
fs.may_detach_mounts = 1
vm.overcommit_memory=1
vm.panic_on_oom=0
fs.inotify.max_user_watches=89100
fs.file-max=52706963
fs.nr_open=52706963
net.netfilter.nf_conntrack_max=2310720
net.ipv4.tcp_keepalive_time = 600
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.tcp_keepalive_intvl =15
net.ipv4.tcp_max_tw_buckets = 36000
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_max_orphans = 327680
net.ipv4.tcp_orphan_retries = 3
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.ip_conntrack_max = 65536
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.tcp_timestamps = 0
net.core.somaxconn = 16384
[root@ansible-server reset-installpackage]# vim tasks/install_package.yml
- name: install Centos or Rocky package
yum:
name: vim,tree,lrzsz,wget,jq,psmisc,net-tools,telnet,git
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- name: install Centos8 or Rocky8 package
yum:
name: rsync
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- ansible_distribution_major_version=="8"
- name: install Ubuntu package
apt:
name: tree,lrzsz,jq
force: yes
when:
- ansible_distribution=="Ubuntu"
[root@ansible-server reset-installpackage]# vim tasks/set_centos7_kernel.yml
- name: update CentOS7
yum:
name: '*'
state: latest
exclude: kernel*
when:
- ansible_distribution=="CentOS"
- ansible_distribution_major_version=="7"
- name: copy CentOS7 kernel files
copy:
src: "{
{ item }}"
dest: /tmp
loop:
- kernel-ml-4.19.12-1.el7.elrepo.x86_64.rpm
- kernel-ml-devel-4.19.12-1.el7.elrepo.x86_64.rpm
when:
- ansible_distribution=="CentOS"
- ansible_distribution_major_version=="7"
- name: Finding RPM files
find:
paths: "/tmp"
patterns: "*.rpm"
register: RPM_RESULT
when:
- ansible_distribution=="CentOS"
- ansible_distribution_major_version=="7"
- name: Install RPM
yum:
name: "{
{ item.path }}"
with_items: "{
{ RPM_RESULT.files }}"
when:
- ansible_distribution=="CentOS"
- ansible_distribution_major_version=="7"
- name: delete kernel files
file:
path: "{
{ item.path }}"
state: absent
with_items: "{
{ RPM_RESULT.files }}"
when:
- ansible_distribution=="CentOS"
- ansible_distribution_major_version=="7"
- name: set grub
shell:
cmd: grub2-set-default 0 && grub2-mkconfig -o /etc/grub2.cfg; grubby --args="user_namespace.enable=1" --update-kernel="$(grubby --default-kernel)"
when:
- ansible_distribution=="CentOS"
- ansible_distribution_major_version=="7"
[root@ansible-server reset-installpackage]# vim tasks/install_ipvsadm.yml
- name: install CentOS or Rocky ipvsadm
yum:
name: ipvsadm,ipset,sysstat,conntrack,libseccomp
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- inventory_hostname in groups.k8s_cluster
- name: install Ubuntu ipvsadm
apt:
name: ipvsadm,ipset,sysstat,conntrack,libseccomp-dev
force: yes
when:
- ansible_distribution=="Ubuntu"
- inventory_hostname in groups.k8s_cluster
[root@ansible-server reset-installpackage]# vim tasks/set_ipvs.yml
- name: configuration load_mod
shell:
cmd: |
modprobe -- ip_vs
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- ip_vs_sh
when:
- inventory_hostname in groups.k8s_cluster
- name: configuration load_mod kernel ge4.18
shell:
cmd: modprobe -- nf_conntrack
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky") or (ansible_distribution=="Ubuntu" and ansible_distribution_major_version=="20")
- inventory_hostname in groups.k8s_cluster
- name: configuration load_mod kernel lt4.18
shell:
cmd: modprobe -- nf_conntrack_ipv4
when:
- (ansible_distribution=="Ubuntu" and ansible_distribution_major_version=="18")
- inventory_hostname in groups.k8s_cluster
- name: Copy ge4.18_ipvs.conf file
copy:
src: ge4.18_ipvs.conf
dest: /etc/modules-load.d/ipvs.conf
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky") or (ansible_distribution=="Ubuntu" and ansible_distribution_major_version=="20")
- inventory_hostname in groups.k8s_cluster
- name: Copy lt4.18_ipvs.conf file
copy:
src: lt4.18_ipvs.conf
dest: /etc/modules-load.d/ipvs.conf
when:
- (ansible_distribution=="Ubuntu" and ansible_distribution_major_version=="18")
- inventory_hostname in groups.k8s_cluster
- name: start systemd-modules-load service
systemd:
name: systemd-modules-load
state: started
enabled: yes
when:
- inventory_hostname in groups.k8s_cluster
[root@ansible-server reset-installpackage]# vim tasks/set_k8s_kernel.yml
- name: copy k8s.conf file
copy:
src: k8s.conf
dest: /etc/sysctl.d/
- name: Load kernel config
shell:
cmd: "sysctl --system"
[root@ansible-server reset-installpackage]# vim tasks/reboot_system.yml
- name: reboot system
reboot:
[root@ansible-server reset-installpackage]# vim tasks/main.yml
- include: install_package.yml
- include: set_centos7_kernel.yml
- include: install_ipvsadm.yml
- include: set_ipvs.yml
- include: set_k8s_kernel.yml
- include: reboot_system.yml
[root@ansible-server reset-installpackage]# cd ../../
[root@ansible-server ansible]# tree roles/reset-installpackage/
roles/reset-installpackage/
├── files
│ ├── ge4.18_ipvs.conf
│ ├── k8s.conf
│ ├── kernel-ml-4.19.12-1.el7.elrepo.x86_64.rpm
│ ├── kernel-ml-devel-4.19.12-1.el7.elrepo.x86_64.rpm
│ └── lt4.18_ipvs.conf
└── tasks
├── install_ipvsadm.yml
├── install_package.yml
├── main.yml
├── reboot_system.yml
├── set_centos7_kernel.yml
├── set_ipvs.yml
└── set_k8s_kernel.yml
2 directories, 12 files
[root@ansible-server ansible]# vim reset_installpackage_role.yml
---
- hosts: all
serial: 3
roles:
- role: reset-installpackage
[root@ansible-server ansible]# ansible-playbook reset_installpackage_role.yml
6.安装chrony
6.1 安装chrony-server
[root@ansible-server ansible]# mkdir -p roles/chrony-server/{tasks,handlers}
[root@ansible-server ansible]# cd roles/chrony-server/
[root@ansible-server chrony-server]# ls
handlers tasks
[root@ansible-server chrony-server]# vim tasks/install_chrony_yum.yml
- name: install CentOS or Rocky chrony
yum:
name: chrony
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- name: delete CentOS or Rocky /etc/chrony.conf file contains '^pool.*' string line
lineinfile:
path: /etc/chrony.conf
regexp: '^pool.*'
state: absent
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
notify:
- restart chronyd
- name: delete CentOS or Rocky /etc/chrony.conf file contains '^server.*' string line
lineinfile:
path: /etc/chrony.conf
regexp: '^server.*'
state: absent
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
notify:
- restart chronyd
- name: add Time server for CentOS or Rocky /etc/chrony.conf file
lineinfile:
path: /etc/chrony.conf
insertafter: '^# Please consider .*'
line: "server ntp.aliyun.com iburst\nserver time1.cloud.tencent.com iburst\nserver ntp.tuna.tsinghua.edu.cn iburst"
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
notify:
- restart chronyd
- name: Substitution '^#(allow).*' string for CentOS or Rocky /etc/chrony.conf file
replace:
path: /etc/chrony.conf
regexp: '^#(allow).*'
replace: '\1 0.0.0.0/0'
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
notify:
- restart chronyd
- name: Substitution '^#(local).*' string for CentOS or Rocky /etc/chrony.conf file
replace:
path: /etc/chrony.conf
regexp: '^#(local).*'
replace: '\1 stratum 10'
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
notify:
- restart chronyd
[root@ansible-server chrony-server]# vim tasks/install_chrony_apt.yml
- name: delete lock files
file:
path: "{
{ item }}"
state: absent
loop:
- /var/lib/dpkg/lock
- /var/lib/apt/lists/lock
- /var/cache/apt/archives/lock
when:
- ansible_distribution=="Ubuntu"
- name: apt update
apt:
update_cache: yes
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: install Ubuntu chrony
apt:
name: chrony
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: delete Ubuntu /etc/chrony/chrony.conf file contains '^pool.*' string line
lineinfile:
path: /etc/chrony/chrony.conf
regexp: '^pool.*'
state: absent
when:
- ansible_distribution=="Ubuntu"
notify:
- restart chronyd
- name: add Time server for Ubuntu /etc/chrony/chrony.conf file
lineinfile:
path: /etc/chrony/chrony.conf
insertafter: '^# See http:.*'
line: "server ntp.aliyun.com iburst\nserver time1.cloud.tencent.com iburst\nserver ntp.tuna.tsinghua.edu.cn iburst"
when:
- ansible_distribution=="Ubuntu"
- name: add 'allow 0.0.0.0/0' string and 'local stratum 10' string for Ubuntu /etc/chrony/chrony.conf file
lineinfile:
path: /etc/chrony/chrony.conf
line: "{
{ item }}"
loop:
- "allow 0.0.0.0/0"
- "local stratum 10"
when:
- ansible_distribution=="Ubuntu"
notify:
- restart chronyd
[root@ansible-server chrony-server]# vim tasks/service.yml
- name: start chronyd
systemd:
name: chronyd
state: started
enabled: yes
[root@ansible-server chrony-server]# vim tasks/main.yml
- include: install_chrony_yum.yml
- include: install_chrony_apt.yml
- include: service.yml
[root@ansible-server chrony-server]# vim handlers/main.yml
- name: restart chronyd
systemd:
name: chronyd
state: restarted
[root@ansible-server chrony-server]# cd ../../
[root@ansible-server ansible]# tree roles/chrony-server/
roles/chrony-server/
├── handlers
│ └── main.yml
└── tasks
├── install_chrony_apt.yml
├── install_chrony_yum.yml
├── main.yml
└── service.yml
2 directories, 5 files
[root@ansible-server ansible]# vim chrony_server_role.yml
---
- hosts: chrony_server
roles:
- role: chrony-server
[root@ansible-server ansible]# ansible-playbook chrony_server_role.yml
[root@k8s-ha01 ~]# chronyc sources -nv
210 Number of sources = 3
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^- 203.107.6.88 2 6 37 62 -15ms[ -15ms] +/- 35ms
^* 139.199.215.251 2 6 37 62 -10us[+1488us] +/- 37ms
^? 101.6.6.172 0 7 0 - +0ns[ +0ns] +/- 0ns
[root@k8s-ha02 ~]# chronyc sources -nv
210 Number of sources = 3
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^* 203.107.6.88 2 6 77 3 -4058us[+2582us] +/- 31ms
^+ 139.199.215.251 2 6 77 2 +6881us[+6881us] +/- 33ms
^? 101.6.6.172 0 7 0 - +0ns[ +0ns] +/- 0ns
6.2 安装chrony-client
[root@ansible-server ansible]# mkdir -p roles/chrony-client/{tasks,handlers,vars}
[root@ansible-server ansible]# cd roles/chrony-client/
[root@ansible-server chrony-client]# ls
handlers tasks vars
#下面IP设置成chrony-server的IP地址，SERVER1设置ha1的IP地址，SERVER2设置ha2的IP地址
[root@ansible-server chrony-client]# vim vars/main.yml
SERVER1: 172.31.3.104
SERVER2: 172.31.3.105
[root@ansible-server chrony-client]# vim tasks/install_chrony_yum.yml
- name: install CentOS or Rocky chrony
yum:
name: chrony
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- name: delete CentOS or Rocky /etc/chrony.conf file contains '^pool.*' string line
lineinfile:
path: /etc/chrony.conf
regexp: '^pool.*'
state: absent
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
notify:
- restart chronyd
- name: delete CentOS or Rocky /etc/chrony.conf file contains '^server.*' string line
lineinfile:
path: /etc/chrony.conf
regexp: '^server.*'
state: absent
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
notify:
- restart chronyd
- name: add Time server for CentOS or Rocky /etc/chrony.conf file
lineinfile:
path: /etc/chrony.conf
insertafter: '^# Please consider .*'
line: "server {
{ SERVER1 }} iburst\nserver {
{ SERVER2 }} iburst"
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
notify:
- restart chronyd
[root@ansible-server chrony-client]# vim tasks/install_chrony_apt.yml
- name: delete lock files
file:
path: "{
{ item }}"
state: absent
loop:
- /var/lib/dpkg/lock
- /var/lib/apt/lists/lock
- /var/cache/apt/archives/lock
when:
- ansible_distribution=="Ubuntu"
- name: apt update
apt:
update_cache: yes
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: install Ubuntu chrony
apt:
name: chrony
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: delete Ubuntu /etc/chrony/chrony.conf file contains '^pool.*' string line
lineinfile:
path: /etc/chrony/chrony.conf
regexp: '^pool.*'
state: absent
when:
- ansible_distribution=="Ubuntu"
notify:
- restart chronyd
- name: add Time server for Ubuntu /etc/chrony/chrony.conf file
lineinfile:
path: /etc/chrony/chrony.conf
insertafter: '^# See http:.*'
line: "server {
{ SERVER1 }} iburst\nserver {
{ SERVER2 }} iburst"
when:
- ansible_distribution=="Ubuntu"
notify:
- restart chronyd
[root@ansible-server chrony-client]# vim tasks/service.yml
- name: start chronyd
systemd:
name: chronyd
state: started
enabled: yes
[root@ansible-server chrony-client]# vim tasks/main.yml
- include: install_chrony_yum.yml
- include: install_chrony_apt.yml
- include: service.yml
[root@ansible-server chrony-client]# vim handlers/main.yml
- name: restart chronyd
systemd:
name: chronyd
state: restarted
[root@ansible-server chrony-client]# cd ../../
[root@ansible-server ansible]# tree roles/chrony-client/
roles/chrony-client/
├── handlers
│ └── main.yml
├── tasks
│ ├── install_chrony_apt.yml
│ ├── install_chrony_yum.yml
│ ├── main.yml
│ └── service.yml
└── vars
└── main.yml
3 directories, 6 files
[root@ansible-server ansible]# vim chrony_client_role.yml
---
- hosts: chrony_client
roles:
- role: chrony-client
[root@ansible-server ansible]# ansible-playbook chrony_client_role.yml
[root@k8s-master01 ~]# chronyc sources -nv
210 Number of sources = 2
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^* k8s-ha01 3 6 17 28 -57us[ -29us] +/- 31ms
^+ k8s-ha02 3 6 17 29 +204us[ +231us] +/- 34ms
7.安装haproxy
[root@ansible-server ansible]# mkdir -p roles/haproxy/{tasks,vars,files,templates}
[root@ansible-server ansible]# cd roles/haproxy/
[root@ansible-server haproxy]# ls
files tasks templates vars
[root@ansible-server haproxy]# wget http://www.lua.org/ftp/lua-5.4.4.tar.gz -P files/
[root@ansible-server haproxy]# wget https://www.haproxy.org/download/2.4/src/haproxy-2.4.15.tar.gz -P files/
[root@ansible-server haproxy]# vim files/haproxy.service
[Unit]
Description=HAProxy Load Balancer
After=syslog.target network.target
[Service]
ExecStartPre=/usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -c -q
ExecStart=/usr/sbin/haproxy -Ws -f /etc/haproxy/haproxy.cfg -p /var/lib/haproxy/haproxy.pid
ExecReload=/bin/kill -USR2 $MAINPID
[Install]
WantedBy=multi-user.target
#下面VIP设置成自己的keepalived里的VIP(虚拟IP)地址
[root@ansible-server haproxy]# vim vars/main.yml
SRC_DIR: /usr/local/src
LUA_FILE: lua-5.4.4.tar.gz
HAPROXY_FILE: haproxy-2.4.15.tar.gz
HAPROXY_INSTALL_DIR: /apps/haproxy
STATS_AUTH_USER: admin
STATS_AUTH_PASSWORD: 123456
VIP: 172.31.3.188
[root@ansible-server haproxy]# vim templates/haproxy.cfg.j2
global
maxconn 100000
chroot {
{
HAPROXY_INSTALL_DIR }}
stats socket /var/lib/haproxy/haproxy.sock mode 600 level admin
uid 99
gid 99
daemon
pidfile /var/lib/haproxy/haproxy.pid
log 127.0.0.1 local3 info
defaults
option http-keep-alive
option forwardfor
maxconn 100000
mode http
timeout connect 300000ms
timeout client 300000ms
timeout server 300000ms
listen stats
mode http
bind 0.0.0.0:9999
stats enable
log global
stats uri /haproxy-status
stats auth {
{
STATS_AUTH_USER }}:{
{
STATS_AUTH_PASSWORD }}
listen kubernetes-6443
bind {
{
VIP }}:6443
mode tcp
log global
{
% for i in groups.master %}
server {
{
i }} {
{
i }}:6443 check inter 3s fall 2 rise 5
{
% endfor %}
listen harbor-80
bind {
{
VIP }}:80
mode http
log global
balance source
{
% for i in groups.harbor %}
server {
{
i }} {
{
i }}:80 check inter 3s fall 2 rise 5
{
% endfor %}
[root@ansible-server haproxy]# vim tasks/install_package.yml
- name: install CentOS or Rocky depend on the package
yum:
name: gcc,make,gcc-c++,glibc,glibc-devel,pcre,pcre-devel,openssl,openssl-devel,systemd-devel,libtermcap-devel,ncurses-devel,libevent-devel,readline-devel
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- inventory_hostname in groups.haproxy
- name: delete lock files
file:
path: "{
{ item }}"
state: absent
loop:
- /var/lib/dpkg/lock
- /var/lib/apt/lists/lock
- /var/cache/apt/archives/lock
when:
- ansible_distribution=="Ubuntu"
- inventory_hostname in groups.haproxy
- name: apt update
apt:
update_cache: yes
force: yes
when:
- ansible_distribution=="Ubuntu"
- inventory_hostname in groups.haproxy
- name: install Ubuntu depend on the package
apt:
name: gcc,make,openssl,libssl-dev,libpcre3,libpcre3-dev,zlib1g-dev,libreadline-dev,libsystemd-dev
force: yes
when:
- ansible_distribution=="Ubuntu"
- inventory_hostname in groups.haproxy
[root@ansible-server haproxy]# vim tasks/build_lua.yml
- name: unarchive lua package
unarchive:
src: "{
{ LUA_FILE }}"
dest: "{
{ SRC_DIR }}"
when:
- inventory_hostname in groups.haproxy
- name: get LUA_DIR directory
shell:
cmd: echo {
{
LUA_FILE }} | sed -nr 's/^(.*[0-9]).([[:lower:]]).*/\1/p'
register: LUA_DIR
when:
- inventory_hostname in groups.haproxy
- name: Build and install lua
shell:
chdir: "{
{ SRC_DIR }}/{
{ LUA_DIR.stdout }}"
cmd: make all test
when:
- inventory_hostname in groups.haproxy
[root@ansible-server haproxy]# vim tasks/build_haproxy.yml
- name: unarchive haproxy package
unarchive:
src: "{
{ HAPROXY_FILE }}"
dest: "{
{ SRC_DIR }}"
when:
- inventory_hostname in groups.haproxy
- name: get HAPROXY_DIR directory
shell:
cmd: echo {
{
HAPROXY_FILE }} | sed -nr 's/^(.*[0-9]).([[:lower:]]).*/\1/p'
register: HAPROXY_DIR
when:
- inventory_hostname in groups.haproxy
- name: make Haproxy
shell:
chdir: "{
{ SRC_DIR }}/{
{ HAPROXY_DIR.stdout }}"
cmd: make -j {
{
ansible_processor_vcpus }} ARCH=x86_64 TARGET=linux-glibc USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 USE_SYSTEMD=1 USE_CPU_AFFINITY=1 USE_LUA=1 LUA_INC={
{
SRC_DIR }}/{
{
LUA_DIR.stdout }}/src/ LUA_LIB={
{
SRC_DIR }}/{
{
LUA_DIR.stdout }}/src/ PREFIX={
{
HAPROXY_INSTALL_DIR }}
when:
- inventory_hostname in groups.haproxy
- name: make install Haproxy
shell:
chdir: "{
{ SRC_DIR }}/{
{ HAPROXY_DIR.stdout }}"
cmd: make install PREFIX={
{
HAPROXY_INSTALL_DIR }}
when:
- inventory_hostname in groups.haproxy
[root@ansible-server haproxy]# vim tasks/config.yml
- name: copy haproxy.service file
copy:
src: haproxy.service
dest: /lib/systemd/system
when:
- inventory_hostname in groups.haproxy
- name: create haproxy link
file:
src: "../..{
{ HAPROXY_INSTALL_DIR }}/sbin/{
{ item.src }}"
dest: "/usr/sbin/{
{ item.src }}"
state: link
owner: root
group: root
mode: 755
force: yes
with_items:
- src: haproxy
when:
- inventory_hostname in groups.haproxy
- name: create /etc/haproxy directory
file:
path: /etc/haproxy
state: directory
when:
- inventory_hostname in groups.haproxy
- name: create /var/lib/haproxy/ directory
file:
path: /var/lib/haproxy/
state: directory
when:
- inventory_hostname in groups.haproxy
- name: copy haproxy.cfg file
template:
src: haproxy.cfg.j2
dest: /etc/haproxy/haproxy.cfg
when:
- inventory_hostname in groups.haproxy
- name: Add the kernel
sysctl:
name: net.ipv4.ip_nonlocal_bind
value: "1"
when:
- inventory_hostname in groups.haproxy
- name: PATH variable
copy:
content: 'PATH={
{ HAPROXY_INSTALL_DIR }}/sbin:$PATH'
dest: /etc/profile.d/haproxy.sh
when:
- inventory_hostname in groups.haproxy
- name: PATH variable entry
shell:
cmd: . /etc/profile.d/haproxy.sh
when:
- inventory_hostname in groups.haproxy
[root@ansible-server haproxy]# vim tasks/service.yml
- name: start haproxy
systemd:
name: haproxy
state: started
enabled: yes
daemon_reload: yes
when:
- inventory_hostname in groups.haproxy
[root@ansible-server haproxy]# vim tasks/main.yml
- include: install_package.yml
- include: build_lua.yml
- include: build_haproxy.yml
- include: config.yml
- include: service.yml
[root@ansible-server haproxy]# cd ../../
[root@ansible-server ansible]# tree roles/haproxy/
roles/haproxy/
├── files
│ ├── haproxy-2.4.15.tar.gz
│ ├── haproxy.service
│ └── lua-5.4.4.tar.gz
├── tasks
│ ├── build_haproxy.yml
│ ├── build_lua.yml
│ ├── config.yml
│ ├── install_package.yml
│ ├── main.yml
│ └── service.yml
├── templates
│ └── haproxy.cfg.j2
└── vars
└── main.yml
4 directories, 11 files
[root@ansible-server ansible]# vim haproxy_role.yml
---
- hosts: haproxy:master:harbor
roles:
- role: haproxy
[root@ansible-server ansible]# ansible-playbook haproxy_role.yml
8.安装keepalived
8.1 安装keepalived-master
[root@ansible-server ansible]# mkdir -p roles/keepalived-master/{tasks,files,vars,templates}
[root@ansible-server ansible]# cd roles/keepalived-master/
[root@ansible-server keepalived-master]# ls
files tasks templates vars
[root@ansible-server keepalived-master]# wget https://keepalived.org/software/keepalived-2.2.7.tar.gz -P files/
[root@ansible-server keepalived-master]# vim files/check_haproxy.sh
#!/bin/bash
#
#**********************************************************************************************
#Author: Raymond
#QQ: 88563128
#Date: 2022-01-09
#FileName: check_haproxy.sh
#URL: raymond.blog.csdn.net
#Description: The test script
#Copyright (C): 2022 All rights reserved
#*********************************************************************************************
err=0
for k in $(seq 1 3);do
check_code=$(pgrep haproxy)
if [[ $check_code == "" ]]; then
err=$(expr $err + 1)
sleep 1
continue
else
err=0
break
fi
done
if [[ $err != "0" ]]; then
echo "systemctl stop keepalived"
/usr/bin/systemctl stop keepalived
exit 1
else
exit 0
fi
#下面VIP设置成自己的keepalived里的VIP(虚拟IP)地址
[root@ansible-server keepalived-master]# vim vars/main.yml
URL: mirrors.cloud.tencent.com
ROCKY_URL: mirrors.sjtug.sjtu.edu.cn
KEEPALIVED_FILE: keepalived-2.2.7.tar.gz
SRC_DIR: /usr/local/src
KEEPALIVED_INSTALL_DIR: /apps/keepalived
STATE: MASTER
PRIORITY: 100
VIP: 172.31.3.188
[root@ansible-server keepalived-master]# vim templates/PowerTools.repo.j2
[PowerTools]
name=PowerTools
{
% if ansible_distribution =="Rocky" %}
baseurl=https://{
{
ROCKY_URL }}/rocky/$releasever/PowerTools/$basearch/os/
{
% elif ansible_distribution=="CentOS" %}
baseurl=https://{
{
URL }}/centos/$releasever/PowerTools/$basearch/os/
{
% endif %}
gpgcheck=1
{
% if ansible_distribution =="Rocky" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rockyofficial
{
% elif ansible_distribution=="CentOS" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
{
% endif %}
[root@ansible-server keepalived-master]# vim templates/keepalived.conf.j2
! Configuration File for keepalived
global_defs {
router_id LVS_DEVEL
script_user root
enable_script_security
}
vrrp_script check_haoroxy {
script "/etc/keepalived/check_haproxy.sh"
interval 5
weight -5
fall 2
rise 1
}
vrrp_instance VI_1 {
state {
{
STATE }}
interface {
{
ansible_default_ipv4.interface }}
virtual_router_id 51
priority {
{
PRIORITY }}
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
{
{
VIP }} dev {
{
ansible_default_ipv4.interface }} label {
{
ansible_default_ipv4.interface }}:1
}
track_script {
check_haproxy
}
}
[root@ansible-server keepalived-master]# vim tasks/install_package.yml
- name: find "[PowerTools]" mirror warehouse
find:
path: /etc/yum.repos.d/
contains: '\[PowerTools\]'
register: RETURN
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- ansible_distribution_major_version=="8"
- name: copy repo file
template:
src: PowerTools.repo.j2
dest: /etc/yum.repos.d/PowerTools.repo
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky") and (ansible_distribution_major_version=="8")
- RETURN.matched == 0
- name: install CentOS8 or Rocky8 depend on the package
yum:
name: make,gcc,ipvsadm,autoconf,automake,openssl-devel,libnl3-devel,iptables-devel,ipset-devel,file-devel,net-snmp-devel,glib2-devel,pcre2-devel,libnftnl-devel,libmnl-devel,systemd-devel
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- ansible_distribution_major_version=="8"
- name: install CentOS7 depend on the package
yum:
name: make,gcc,libnfnetlink-devel,libnfnetlink,ipvsadm,libnl,libnl-devel,libnl3,libnl3-devel,lm_sensors-libs,net-snmp-agent-libs,net-snmp-libs,openssh-server,openssh-clients,openssl,openssl-devel,automake,iproute
when:
- ansible_distribution=="CentOS"
- ansible_distribution_major_version=="7"
- name: delete lock files
file:
path: "{
{ item }}"
state: absent
loop:
- /var/lib/dpkg/lock
- /var/lib/apt/lists/lock
- /var/cache/apt/archives/lock
when:
- ansible_distribution=="Ubuntu"
- name: apt update
apt:
update_cache: yes
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: install Ubuntu 20.04 depend on the package
apt:
name: make,gcc,ipvsadm,build-essential,pkg-config,automake,autoconf,libipset-dev,libnl-3-dev,libnl-genl-3-dev,libssl-dev,libxtables-dev,libip4tc-dev,libip6tc-dev,libipset-dev,libmagic-dev,libsnmp-dev,libglib2.0-dev,libpcre2-dev,libnftnl-dev,libmnl-dev,libsystemd-dev
force: yes
when:
- ansible_distribution=="Ubuntu"
- ansible_distribution_major_version=="20"
- name: install Ubuntu 18.04 depend on the package
apt:
name: make,gcc,ipvsadm,build-essential,pkg-config,automake,autoconf,iptables-dev,libipset-dev,libnl-3-dev,libnl-genl-3-dev,libssl-dev,libxtables-dev,libip4tc-dev,libip6tc-dev,libipset-dev,libmagic-dev,libsnmp-dev,libglib2.0-dev,libpcre2-dev,libnftnl-dev,libmnl-dev,libsystemd-dev
force: yes
when:
- ansible_distribution=="Ubuntu"
- ansible_distribution_major_version=="18"
[root@ansible-server keepalived-master]# vim tasks/keepalived_file.yml
- name: unarchive keepalived package
unarchive:
src: "{
{ KEEPALIVED_FILE }}"
dest: "{
{ SRC_DIR }}"
[root@ansible-server keepalived_master]# vim tasks/build.yml
- name: get KEEPALIVED_DIR directory
shell:
cmd: echo {
{
KEEPALIVED_FILE }} | sed -nr 's/^(.*[0-9]).([[:lower:]]).*/\1/p'
register: KEEPALIVED_DIR
- name: Build and install Keepalived
shell:
chdir: "{
{ SRC_DIR }}/{
{ KEEPALIVED_DIR.stdout }}"
cmd: ./configure --prefix={
{
KEEPALIVED_INSTALL_DIR }} --disable-fwmark
- name: make && make install
shell:
chdir: "{
{ SRC_DIR }}/{
{ KEEPALIVED_DIR.stdout }}"
cmd: make -j {
{
ansible_processor_vcpus }} && make install
[root@ansible-server keepalived-master]# vim tasks/config.yml
- name: create /etc/keepalived directory
file:
path: /etc/keepalived
state: directory
- name: copy keepalived.conf file
template:
src: keepalived.conf.j2
dest: /etc/keepalived/keepalived.conf
- name: copy check_haproxy.sh file
copy:
src: check_haproxy.sh
dest: /etc/keepalived/
mode: 0755
- name: copy keepalived.service file
copy:
remote_src: True
src: "{
{ SRC_DIR }}/{
{ KEEPALIVED_DIR.stdout }}/keepalived/keepalived.service"
dest: /lib/systemd/system/
- name: PATH variable
copy:
content: 'PATH={
{ KEEPALIVED_INSTALL_DIR }}/sbin:$PATH'
dest: /etc/profile.d/keepalived.sh
- name: PATH variable entry
shell:
cmd: . /etc/profile.d/keepalived.sh
[root@ansible-server keepalived-master]# vim tasks/service.yml
- name: start keepalived
systemd:
name: keepalived
state: started
enabled: yes
daemon_reload: yes
[root@ansible-server keepalived-master]# vim tasks/main.yml
- include: install_package.yml
- include: keepalived_file.yml
- include: build.yml
- include: config.yml
- include: service.yml
[root@ansible-server keepalived-master]# cd ../../
[root@ansible-server ansible]# tree roles/keepalived-master/
roles/keepalived-master/
├── files
│ ├── check_haproxy.sh
│ └── keepalived-2.2.7.tar.gz
├── tasks
│ ├── build.yml
│ ├── config.yml
│ ├── install_package.yml
│ ├── keepalived_file.yml
│ ├── main.yml
│ └── service.yml
├── templates
│ ├── keepalived.conf.j2
│ └── PowerTools.repo.j2
└── vars
└── main.yml
4 directories, 11 files
[root@ansible-server ansible]# vim keepalived_master_role.yml
---
- hosts: keepalives_master
roles:
- role: keepalived-master
[root@ansible-server ansible]# ansible-playbook keepalived_master_role.yml
8.2 安装keepalived-backup
[root@ansible-server ansible]# mkdir -p roles/keepalived-backup/{tasks,files,vars,templates}
[root@ansible-server ansible]# cd roles/keepalived-backup/
[root@ansible-server keepalived-master]# ls
files tasks templates vars
[root@ansible-server keepalived-backup]# wget https://keepalived.org/software/keepalived-2.2.7.tar.gz -P files/
[root@ansible-server keepalived-backup]# vim files/check_haproxy.sh
#!/bin/bash
#
#**********************************************************************************************
#Author: Raymond
#QQ: 88563128
#Date: 2022-01-09
#FileName: check_haproxy.sh
#URL: raymond.blog.csdn.net
#Description: The test script
#Copyright (C): 2022 All rights reserved
#*********************************************************************************************
err=0
for k in $(seq 1 3);do
check_code=$(pgrep haproxy)
if [[ $check_code == "" ]]; then
err=$(expr $err + 1)
sleep 1
continue
else
err=0
break
fi
done
if [[ $err != "0" ]]; then
echo "systemctl stop keepalived"
/usr/bin/systemctl stop keepalived
exit 1
else
exit 0
fi
#下面VIP设置成自己的keepalived里的VIP(虚拟IP)地址
[root@ansible-server keepalived-backup]# vim vars/main.yml
URL: mirrors.cloud.tencent.com
ROCKY_URL: mirrors.sjtug.sjtu.edu.cn
KEEPALIVED_FILE: keepalived-2.2.7.tar.gz
SRC_DIR: /usr/local/src
KEEPALIVED_INSTALL_DIR: /apps/keepalived
STATE: BACKUP
PRIORITY: 90
VIP: 172.31.3.188
[root@ansible-server keepalived-backup]# vim templates/PowerTools.repo.j2
[PowerTools]
name=PowerTools
{
% if ansible_distribution =="Rocky" %}
baseurl=https://{
{
ROCKY_URL }}/rocky/$releasever/PowerTools/$basearch/os/
{
% elif ansible_distribution=="CentOS" %}
baseurl=https://{
{
URL }}/centos/$releasever/PowerTools/$basearch/os/
{
% endif %}
gpgcheck=1
{
% if ansible_distribution =="Rocky" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rockyofficial
{
% elif ansible_distribution=="CentOS" %}
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
{
% endif %}
[root@ansible-server keepalived-backup]# vim templates/keepalived.conf.j2
! Configuration File for keepalived
global_defs {
router_id LVS_DEVEL
script_user root
enable_script_security
}
vrrp_script check_haoroxy {
script "/etc/keepalived/check_haproxy.sh"
interval 5
weight -5
fall 2
rise 1
}
vrrp_instance VI_1 {
state {
{
STATE }}
interface {
{
ansible_default_ipv4.interface }}
virtual_router_id 51
priority {
{
PRIORITY }}
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
{
{
VIP }} dev {
{
ansible_default_ipv4.interface }} label {
{
ansible_default_ipv4.interface }}:1
}
track_script {
check_haproxy
}
}
[root@ansible-server keepalived-backup]# vim tasks/install_package.yml
- name: find "[PowerTools]" mirror warehouse
find:
path: /etc/yum.repos.d/
contains: '\[PowerTools\]'
register: RETURN
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- ansible_distribution_major_version=="8"
- name: copy repo file
template:
src: PowerTools.repo.j2
dest: /etc/yum.repos.d/PowerTools.repo
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky") and (ansible_distribution_major_version=="8")
- RETURN.matched == 0
- name: install CentOS8 or Rocky8 depend on the package
yum:
name: make,gcc,ipvsadm,autoconf,automake,openssl-devel,libnl3-devel,iptables-devel,ipset-devel,file-devel,net-snmp-devel,glib2-devel,pcre2-devel,libnftnl-devel,libmnl-devel,systemd-devel
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- ansible_distribution_major_version=="8"
- name: install CentOS7 depend on the package
yum:
name: make,gcc,libnfnetlink-devel,libnfnetlink,ipvsadm,libnl,libnl-devel,libnl3,libnl3-devel,lm_sensors-libs,net-snmp-agent-libs,net-snmp-libs,openssh-server,openssh-clients,openssl,openssl-devel,automake,iproute
when:
- ansible_distribution=="CentOS"
- ansible_distribution_major_version=="7"
- name: delete lock files
file:
path: "{
{ item }}"
state: absent
loop:
- /var/lib/dpkg/lock
- /var/lib/apt/lists/lock
- /var/cache/apt/archives/lock
when:
- ansible_distribution=="Ubuntu"
- name: apt update
apt:
update_cache: yes
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: install Ubuntu 20.04 depend on the package
apt:
name: make,gcc,ipvsadm,build-essential,pkg-config,automake,autoconf,libipset-dev,libnl-3-dev,libnl-genl-3-dev,libssl-dev,libxtables-dev,libip4tc-dev,libip6tc-dev,libipset-dev,libmagic-dev,libsnmp-dev,libglib2.0-dev,libpcre2-dev,libnftnl-dev,libmnl-dev,libsystemd-dev
force: yes
when:
- ansible_distribution=="Ubuntu"
- ansible_distribution_major_version=="20"
- name: install Ubuntu 18.04 depend on the package
apt:
name: make,gcc,ipvsadm,build-essential,pkg-config,automake,autoconf,iptables-dev,libipset-dev,libnl-3-dev,libnl-genl-3-dev,libssl-dev,libxtables-dev,libip4tc-dev,libip6tc-dev,libipset-dev,libmagic-dev,libsnmp-dev,libglib2.0-dev,libpcre2-dev,libnftnl-dev,libmnl-dev,libsystemd-dev
force: yes
when:
- ansible_distribution=="Ubuntu"
- ansible_distribution_major_version=="18"
[root@ansible-server keepalived-backup]# vim tasks/keepalived_file.yml
- name: unarchive keepalived package
unarchive:
src: "{
{ KEEPALIVED_FILE }}"
dest: "{
{ SRC_DIR }}"
[root@ansible-server keepalived_backup]# vim tasks/build.yml
- name: get KEEPALIVED_DIR directory
shell:
cmd: echo {
{
KEEPALIVED_FILE }} | sed -nr 's/^(.*[0-9]).([[:lower:]]).*/\1/p'
register: KEEPALIVED_DIR
- name: Build and install Keepalived
shell:
chdir: "{
{ SRC_DIR }}/{
{ KEEPALIVED_DIR.stdout }}"
cmd: ./configure --prefix={
{
KEEPALIVED_INSTALL_DIR }} --disable-fwmark
- name: make && make install
shell:
chdir: "{
{ SRC_DIR }}/{
{ KEEPALIVED_DIR.stdout }}"
cmd: make -j {
{
ansible_processor_vcpus }} && make install
[root@ansible-server keepalived-backup]# vim tasks/config.yml
- name: create /etc/keepalived directory
file:
path: /etc/keepalived
state: directory
- name: copy keepalived.conf file
template:
src: keepalived.conf.j2
dest: /etc/keepalived/keepalived.conf
- name: copy check_haproxy.sh file
copy:
src: check_haproxy.sh
dest: /etc/keepalived/
mode: 0755
- name: copy keepalived.service file
copy:
remote_src: True
src: "{
{ SRC_DIR }}/{
{ KEEPALIVED_DIR.stdout }}/keepalived/keepalived.service"
dest: /lib/systemd/system/
- name: PATH variable
copy:
content: 'PATH={
{ KEEPALIVED_INSTALL_DIR }}/sbin:$PATH'
dest: /etc/profile.d/keepalived.sh
- name: PATH variable entry
shell:
cmd: . /etc/profile.d/keepalived.sh
[root@ansible-server keepalived-backup]# vim tasks/service.yml
- name: start keepalived
systemd:
name: keepalived
state: started
enabled: yes
daemon_reload: yes
[root@ansible-server keepalived-backup]# vim tasks/main.yml
- include: install_package.yml
- include: keepalived_file.yml
- include: build.yml
- include: config.yml
- include: service.yml
[root@ansible-server keepalived-backup]# cd ../../
roles/keepalived-backup/
├── files
│ ├── check_haproxy.sh
│ └── keepalived-2.2.7.tar.gz
├── tasks
│ ├── build.yml
│ ├── config.yml
│ ├── install_package.yml
│ ├── keepalived_file.yml
│ ├── main.yml
│ └── service.yml
├── templates
│ ├── keepalived.conf.j2
│ └── PowerTools.repo.j2
└── vars
└── main.yml
4 directories, 11 files
[root@ansible-server ansible]# vim keepalived_backup_role.yml
---
- hosts: keepalives_backup
roles:
- role: keepalived-backup
[root@ansible-server ansible]# ansible-playbook keepalived_backup_role.yml
9.安装harbor
9.1 docker基于镜像仓库
[root@ansible-server ansible]# mkdir -p roles/docker/{tasks,vars,templates}
[root@ansible-server ansible]# cd roles/docker/
[root@ansible-server docker]# ls
tasks templates vars
[root@ansible-server docker]# vim templates/daemon.json.j2
{
"registry-mirrors": [
"https://registry.docker-cn.com",
"http://hub-mirror.c.163.com",
"https://docker.mirrors.ustc.edu.cn"
],
"insecure-registries": ["{
{ HARBOR_DOMAIN }}"],
"exec-opts": ["native.cgroupdriver=systemd"],
"max-concurrent-downloads": 10,
"max-concurrent-uploads": 5,
"log-opts": {
"max-size": "300m",
"max-file": "2"
},
"live-restore": true
}
#下面HARBOR_DOMAIN的地址设置成自己的harbor域名地址
[root@ansible-server docker]# vim vars/main.yml
DOCKER_VERSION: 20.10.14
DOCKER_MIRRORS: mirrors.cloud.tencent.com
HARBOR_DOMAIN: harbor.raymonds.cc
[root@ansible-server docker]# vim tasks/install_docker_yum.yml
- name: add CentOS or Rocky docker mirror warehouse
yum_repository:
name: docker-ce
description: docker-ce
file: docker-ce
baseurl: https://{
{
DOCKER_MIRRORS }}/docker-ce/linux/centos/{
{
ansible_distribution_major_version }}/x86_64/stable/
gpgkey: https://{
{
DOCKER_MIRRORS }}/docker-ce/linux/centos/gpg
gpgcheck: yes
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- name: install CentOS or Rocky docker
yum:
name: docker-ce-{
{
DOCKER_VERSION }},docker-ce-cli-{
{
DOCKER_VERSION }}
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
[root@ansible-server docker]# vim tasks/install_docker_apt.yml
- name: delete lock files
file:
path: "{
{ item }}"
state: absent
loop:
- /var/lib/dpkg/lock
- /var/lib/apt/lists/lock
- /var/cache/apt/archives/lock
when:
- ansible_distribution=="Ubuntu"
- name: apt update
apt:
update_cache: yes
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: install Ubuntu docker depend on the package
apt:
name: apt-transport-https,ca-certificates,curl,software-properties-common
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: import Ubuntu docker key
apt_key:
url: https://{
{
DOCKER_MIRRORS }}/docker-ce/linux/ubuntu/gpg
when:
- ansible_distribution=="Ubuntu"
- name: import Ubuntu docker installation source
apt_repository:
repo: "deb [arch=amd64] https://{
{ DOCKER_MIRRORS }}/docker-ce/linux/ubuntu {
{ ansible_distribution_release }} stable"
filename: docker-ce
when:
- ansible_distribution=="Ubuntu"
- name: delete /var/lib/dpkg/lock file
file:
path: /var/lib/dpkg/lock
state: absent
when:
- ansible_distribution=="Ubuntu"
- name: delete /var/lib/apt/lists/lock file
file:
path: /var/lib/apt/lists/lock
state: absent
when:
- ansible_distribution=="Ubuntu"
- name: delete /var/cache/apt/archives/lock file
file:
path: /var/cache/apt/archives/lock
state: absent
when:
- ansible_distribution=="Ubuntu"
- name: apt update
apt:
update_cache: yes
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: install Ubuntu docker
apt:
name: docker-ce=5:{
{
DOCKER_VERSION }}~3-0~ubuntu-{
{
ansible_distribution_release }},docker-ce-cli=5:{
{
DOCKER_VERSION }}~3-0~ubuntu-{
{
ansible_distribution_release }}
force: yes
when:
- ansible_distribution=="Ubuntu"
[root@ansible-server docker]# vim tasks/set_mirror_accelerator.yml
- name: mkdir /etc/docker
file:
path: /etc/docker
state: directory
- name: set mirror_accelerator
template:
src: daemon.json.j2
dest: /etc/docker/daemon.json
[root@ansible-server docker]# vim tasks/service.yml
- name: start docker
systemd:
name: docker
state: started
enabled: yes
daemon_reload: yes
[root@ansible-server docker]# vim tasks/set_alias.yml
- name: set docker alias
lineinfile:
path: ~/.bashrc
line: "{
{ item }}"
loop:
- "alias rmi=\"docker images -qa|xargs docker rmi -f\""
- "alias rmc=\"docker ps -qa|xargs docker rm -f\""
[root@ansible-server docker]# vim tasks/set_swap.yml
- name: set WARNING No swap limit support
replace:
path: /etc/default/grub
regexp: '^(GRUB_CMDLINE_LINUX=.*)\"$'
replace: '\1 swapaccount=1"'
when:
- ansible_distribution=="Ubuntu"
- name: update-grub
shell:
cmd: update-grub
when:
- ansible_distribution=="Ubuntu"
- name: reboot Ubuntu system
reboot:
when:
- ansible_distribution=="Ubuntu"
[root@ansible-server docker]# vim tasks/main.yml
- include: install_docker_yum.yml
- include: install_docker_apt.yml
- include: set_mirror_accelerator.yml
- include: service.yml
- include: set_alias.yml
- include: set_swap.yml
[root@ansible-server docker]# cd ../../
[root@ansible-server ansible]# tree roles/docker
roles/docker
├── tasks
│ ├── install_docker_apt.yml
│ ├── install_docker_yum.yml
│ ├── main.yml
│ ├── service.yml
│ ├── set_alias.yml
│ ├── set_mirror_accelerator.yml
│ └── set_swap.yml
├── templates
│ └── daemon.json.j2
└── vars
└── main.yml
3 directories, 9 files
9.2 docker-compose
[root@ansible-server ansible]# mkdir -p roles/docker-compose/{tasks,files}
[root@ansible-server ansible]# cd roles/docker-compose/
[root@ansible-server docker-compose]# ls
files tasks
[root@ansible-server docker-compose]# wget https://github.com/docker/compose/releases/download/1.29.2/docker-compose-Linux-x86_64 -P files
[root@ansible-server docker-compose]# vim tasks/install_docker_compose.yml
- name: copy docker compose file
copy:
src: docker-compose-linux-x86_64
dest: /usr/bin/docker-compose
mode: 755
[root@ansible-server docker-compose]# vim tasks/main.yml
- include: install_docker_compose.yml
[root@ansible-server ansible]# tree roles/docker-compose/
roles/docker-compose/
├── files
│ └── docker-compose-linux-x86_64
└── tasks
├── install_docker_compose.yml
└── main.yml
2 directories, 3 files
9.3 harbor
[root@ansible-server ansible]# mkdir -p roles/harbor/{tasks,files,templates,vars,meta}
[root@ansible-server ansible]# cd roles/harbor/
[root@ansible-server harbor]# ls
files meta tasks templates vars
[root@ansible-server harbor]# wget https://github.com/goharbor/harbor/releases/download/v2.5.0/harbor-offline-installer-v2.5.0.tgz -P files/
[root@ansible-server harbor]# vim templates/harbor.service.j2
[Unit]
Description=Harbor
After=docker.service systemd-networkd.service systemd-resolved.service
Requires=docker.service
Documentation=http://github.com/vmware/harbor
[Service]
Type=simple
Restart=on-failure
RestartSec=5
ExecStart=/usr/bin/docker-compose -f {
{
HARBOR_INSTALL_DIR }}/harbor/docker-compose.yml up
ExecStop=/usr/bin/docker-compose -f {
{
HARBOR_INSTALL_DIR }}/harbor/docker-compose.yml down
[Install]
WantedBy=multi-user.target
[root@ansible-server harbor]# vim vars/main.yml
HARBOR_INSTALL_DIR: /apps
HARBOR_VERSION: 2.5.0
HARBOR_ADMIN_PASSWORD: 123456
[root@ansible-server harbor]# vim tasks/harbor_files.yml
- name: create HARBOR_INSTALL_DIR directory
file:
path: "{
{ HARBOR_INSTALL_DIR }}"
state: directory
- name: unarchive harbor package
unarchive:
src: "harbor-offline-installer-v{
{ HARBOR_VERSION }}.tgz"
dest: "{
{ HARBOR_INSTALL_DIR }}/"
creates: "{
{ HARBOR_INSTALL_DIR }}/harbor"
[root@ansible-server harbor]# vim tasks/config.yml
- name: mv harbor.yml
shell:
cmd: mv {
{
HARBOR_INSTALL_DIR }}/harbor/harbor.yml.tmpl {
{
HARBOR_INSTALL_DIR }}/harbor/harbor.yml
creates: "{
{ HARBOR_INSTALL_DIR }}/harbor/harbor.yml"
- name: set harbor.yml file 'hostname' string line
replace:
path: "{
{ HARBOR_INSTALL_DIR }}/harbor/harbor.yml"
regexp: '^(hostname:) .*'
replace: '\1 {
{ ansible_default_ipv4.address }}'
- name: set harbor.yml file 'harbor_admin_password' string line
replace:
path: "{
{ HARBOR_INSTALL_DIR }}/harbor/harbor.yml"
regexp: '^(harbor_admin_password:) .*'
replace: '\1 {
{ HARBOR_ADMIN_PASSWORD }}'
- name: set harbor.yml file 'https' string line
replace:
path: "{
{ HARBOR_INSTALL_DIR }}/harbor/harbor.yml"
regexp: '^(https:)'
replace: '#\1'
- name: set harbor.yml file 'port' string line
replace:
path: "{
{ HARBOR_INSTALL_DIR }}/harbor/harbor.yml"
regexp: ' (port: 443)'
replace: '# \1'
- name: set harbor.yml file 'certificate' string line
replace:
path: "{
{ HARBOR_INSTALL_DIR }}/harbor/harbor.yml"
regexp: ' (certificate: .*)'
replace: '# \1'
- name: set harbor.yml file 'private_key' string line
replace:
path: "{
{ HARBOR_INSTALL_DIR }}/harbor/harbor.yml"
regexp: ' (private_key: .*)'
replace: '# \1'
[root@ansible-server harbor]# vim tasks/install_python.yml
- name: install CentOS or Rocky python
yum:
name: python3
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- name: delete lock files
file:
path: "{
{ item }}"
state: absent
loop:
- /var/lib/dpkg/lock
- /var/lib/apt/lists/lock
- /var/cache/apt/archives/lock
when:
- ansible_distribution=="Ubuntu"
- name: apt update
apt:
update_cache: yes
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: install Ubuntu python
apt:
name: python3
when:
- ansible_distribution=="Ubuntu"
[root@ansible-server harbor]# vim tasks/install_harbor.yml
- name: install harbor
shell:
cmd: "{
{ HARBOR_INSTALL_DIR }}/harbor/install.sh"
[root@ansible-server harbor]# vim tasks/service_file.yml
- name: copy harbor.service
template:
src: harbor.service.j2
dest: /lib/systemd/system/harbor.service
[root@ansible-server harbor]# vim tasks/service.yml
- name: service enable
systemd:
name: harbor
state: started
enabled: yes
daemon_reload: yes
[root@ansible-server harbor]# vim tasks/main.yml
- include: harbor_files.yml
- include: config.yml
- include: install_python.yml
- include: install_harbor.yml
- include: service_file.yml
- include: service.yml
#这里是harbor依赖的角色，docker-binary就是docker基于二进制安装,根据情况修改
[root@ansible-server harbor]# vim meta/main.yml
dependencies:
- role: docker
- role: docker-compose
[root@ansible-server harbor]# cd ../../
[root@ansible-server ansible]# tree roles/harbor/
roles/harbor/
├── files
│ └── harbor-offline-installer-v2.5.0.tgz
├── meta
│ └── main.yml
├── tasks
│ ├── config.yml
│ ├── harbor_files.yml
│ ├── install_harbor.yml
│ ├── install_python.yml
│ ├── main.yml
│ ├── service_file.yml
│ └── service.yml
├── templates
│ └── harbor.service.j2
└── vars
└── main.yml
5 directories, 11 files
[root@ansible-server ansible]# vim harbor_role.yml
---
- hosts: harbor
roles:
- role: harbor
[root@ansible-server ansible]# ansible-playbook harbor_role.yml
9.4 创建harbor仓库
这步一定要做，不然后面镜像下载了上传不到harbor，ansible会执行出错
在harbor01新建项目google_containers
在harbor02新建项目google_containers
在harbor02上新建目标
在harbor02上新建规则
在harbor01上新建目标
在harbor01上新建规则
10.安装docker
#只需要创建这个文件就行
[root@ansible-server ansible]# vim docker_role.yml
---
- hosts: k8s_cluster
roles:
- role: docker
[root@ansible-server ansible]# ansible-playbook docker_role.yml
11.安装kubeadm
[root@ansible-server ansible]# mkdir -p roles/kubeadm/{templates,vars,tasks}
[root@ansible-server ansible]# cd roles/kubeadm/
[root@ansible-server kubeadm]# ls
files tasks vars
[root@ansible-server kubeadm]# vim templates/kubernetes.repo.j2
[kubernetes]
name=Kubernetes
baseurl=https://{
{
KUBEADM_MIRRORS }}/kubernetes/yum/repos/kubernetes-el7-$basearch
enabled=1
gpgcheck=1
repo_gpgcheck=0
gpgkey=https://{
{
KUBEADM_MIRRORS }}/kubernetes/yum/doc/yum-key.gpg https://{
{
KUBEADM_MIRRORS }}/kubernetes/yum/doc/rpm-package-key.gpg
[root@ansible-server kubeadm]# vim templates/kubeadm-config.yaml.j2
apiVersion: kubeadm.k8s.io/v1beta2
bootstrapTokens:
- groups:
- system:bootstrappers:kubeadm:default-node-token
token: 7t2weq.bjbawausm0jaxury
ttl: 24h0m0s
usages:
- signing
- authentication
kind: InitConfiguration
localAPIEndpoint:
advertiseAddress: {
{
ansible_default_ipv4.address }}
bindPort: 6443
nodeRegistration:
criSocket: /var/run/dockershim.sock
name: k8s-master01.example.local
taints:
- effect: NoSchedule
key: node-role.kubernetes.io/master
---
apiServer:
certSANs:
- {
{
VIP }}
timeoutForControlPlane: 4m0s
apiVersion: kubeadm.k8s.io/v1beta2
certificatesDir: /etc/kubernetes/pki
clusterName: kubernetes
controlPlaneEndpoint: {
{
VIP }}:6443
controllerManager: {
}
dns:
type: CoreDNS
etcd:
local:
dataDir: /var/lib/etcd
imageRepository: {
{
HARBOR_DOMAIN }}/google_containers
kind: ClusterConfiguration
kubernetesVersion: v{
{
KUBEADM_VERSION }}
networking:
dnsDomain: {
{
domain }}
podSubnet: {
{
POD_SUBNET }}
serviceSubnet: {
{
SERVICE_SUBNET }}
scheduler: {
}
#下面HARBOR_DOMAIN的地址设置成自己的harbor域名地址，VIP设置成自己的keepalived里的VIP(虚拟IP)地址，POD_SUBNET改成自己规划的容器网段，SERVICE_SUBNET改成自己规划的service网段地址
[root@ansible-server kubeadm]# vim vars/main.yml
KUBEADM_MIRRORS: mirrors.aliyun.com
KUBEADM_VERSION: 1.22.8
HARBOR_DOMAIN: harbor.raymonds.cc
USERNAME: admin
PASSWORD: 123456
VIP: 172.31.3.188
POD_SUBNET: 192.168.0.0/12
SERVICE_SUBNET: 10.96.0.0/12
[root@ansible-server kubeadm]# vim tasks/install_kubeadm_yum.yml
- name: set CentOS or Rocky kubernetes mirror warehouse
template:
src: kubernetes.repo.j2
dest: /etc/yum.repos.d/kubernetes.repo
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- name: install CentOS or Rocky kubeadm for master
yum:
name: kubelet-{
{
KUBEADM_VERSION }},kubeadm-{
{
KUBEADM_VERSION }},kubectl-{
{
KUBEADM_VERSION }}
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- inventory_hostname in groups.master
- name: install CentOS or Rocky kubeadm for node
yum:
name: kubelet-{
{
KUBEADM_VERSION }},kubeadm-{
{
KUBEADM_VERSION }}
when:
- (ansible_distribution=="CentOS" or ansible_distribution=="Rocky")
- inventory_hostname in groups.node
[root@ansible-server kubeadm]# vim tasks/install_kubeadm_apt.yml
- name: delete lock files
file:
path: "{
{ item }}"
state: absent
loop:
- /var/lib/dpkg/lock
- /var/lib/apt/lists/lock
- /var/cache/apt/archives/lock
when:
- ansible_distribution=="Ubuntu"
- name: apt update
apt:
update_cache: yes
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: install Ubuntu kubernetes depend on the package
apt:
name: apt-transport-https
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: import Ubuntu kubernetes key
apt_key:
url: https://{
{
KUBEADM_MIRRORS }}/kubernetes/apt/doc/apt-key.gpg
when:
- ansible_distribution=="Ubuntu"
- name: import Ubuntu kubernetes installation source
apt_repository:
repo: "deb https://{
{ KUBEADM_MIRRORS }}/kubernetes/apt kubernetes-xenial main"
filename: kubernetes
when:
- ansible_distribution=="Ubuntu"
- name: delete lock files
file:
path: "{
{ item }}"
state: absent
loop:
- /var/lib/dpkg/lock
- /var/lib/apt/lists/lock
- /var/cache/apt/archives/lock
when:
- ansible_distribution=="Ubuntu"
- name: apt update
apt:
update_cache: yes
force: yes
when:
- ansible_distribution=="Ubuntu"
- name: install Ubuntu kubeadm for master
apt:
name: kubelet={
{
KUBEADM_VERSION }}-00,kubeadm={
{
KUBEADM_VERSION }}-00,kubectl={
{
KUBEADM_VERSION }}-00
force: yes
when:
- ansible_distribution=="Ubuntu"
- inventory_hostname in groups.master
- name: install Ubuntu kubeadm for node
apt:
name: kubelet={
{
KUBEADM_VERSION }}-00,kubeadm={
{
KUBEADM_VERSION }}-00
force: yes
when:
- ansible_distribution=="Ubuntu"
- inventory_hostname in groups.node
[root@ansible-server kubeadm]# vim tasks/service.yml
- name: start kubelet
systemd:
name: kubelet
state: started
enabled: yes
daemon_reload: yes
[root@ansible-server kubeadm]# vim tasks/docker_login.yml
- name: docker login
shell:
cmd: docker login -u {
{
USERNAME }} -p {
{
PASSWORD }} {
{
HARBOR_DOMAIN }}
when:
- ansible_hostname=="k8s-master01"
[root@ansible-server kubeadm]# vim tasks/download_images.yml
- name: get kubeadm version
shell:
cmd: kubeadm config images list --kubernetes-version=v{
{
KUBEADM_VERSION }} | awk -F "/" '{print $NF}'
register: KUBEADM_IMAGES_VERSION
when:
- ansible_hostname=="k8s-master01"
- name: download kubeadm image
shell: |
{
% for i in KUBEADM_IMAGES_VERSION.stdout_lines %}
docker pull registry.aliyuncs.com/google_containers/{
{
i }}
docker tag registry.aliyuncs.com/google_containers/{
{
i }} {
{
HARBOR_DOMAIN }}/google_containers/{
{
i }}
docker rmi registry.aliyuncs.com/google_containers/{
{
i }}
docker push {
{
HARBOR_DOMAIN }}/google_containers/{
{
i }}
{
% endfor %}
when:
- ansible_hostname=="k8s-master01"
[root@ansible-server kubeadm]# vim tasks/copy_kubeadm_config.yml
- name: copy kubeadm_config.yml file
template:
src: kubeadm-config.yaml.j2
dest: /root/kubeadm-config.yaml
when:
- ansible_hostname=="k8s-master01"
[root@ansible-server kubeadm]# vim tasks/main.yml
- include: install_kubeadm_yum.yml
- include: install_kubeadm_apt.yml
- include: service.yml
- include: docker_login.yml
- include: download_images.yml
- include: copy_kubeadm_config.yml
[root@ansible-server kubeadm]# cd ../../
[root@ansible-server ansible]# tree roles/kubeadm/
roles/kubeadm/
├── tasks
│ ├── copy_kubeadm_config.yml
│ ├── docker_login.yml
│ ├── download_images.yml
│ ├── install_kubeadm_apt.yml
│ ├── install_kubeadm_yum.yml
│ ├── main.yml
│ └── service.yml
├── templates
│ ├── kubeadm-config.yaml.j2
│ └── kubernetes.repo.j2
└── vars
└── main.yml
3 directories, 10 files
[root@ansible-server ansible]# vim kubeadm_role.yml
---
- hosts: master:node
roles:
- role: kubeadm
[root@ansible-server ansible]# ansible-playbook kubeadm_role.yml
12.集群初始化
[root@k8s-master01 ~]# kubeadm init --config /root/kubeadm-config.yaml --upload-certs
[init] Using Kubernetes version: v1.22.8
[preflight] Running pre-flight checks
[WARNING FileExisting-tc]: tc not found in system path
[preflight] Pulling images required for setting up a Kubernetes cluster
[preflight] This might take a minute or two, depending on the speed of your internet connection
[preflight] You can also perform this action in beforehand using 'kubeadm config images pull'
[certs] Using certificateDir folder "/etc/kubernetes/pki"
[certs] Generating "ca" certificate and key
[certs] Generating "apiserver" certificate and key
[certs] apiserver serving cert is signed for DNS names [k8s-master01 kubernetes kubernetes.default kubernetes.default.svc kubernetes.default.svc.example.local] and IPs [10.96.0.1 172.31.3.101 172.31.3.188]
[certs] Generating "apiserver-kubelet-client" certificate and key
[certs] Generating "front-proxy-ca" certificate and key
[certs] Generating "front-proxy-client" certificate and key
[certs] Generating "etcd/ca" certificate and key
[certs] Generating "etcd/server" certificate and key
[certs] etcd/server serving cert is signed for DNS names [k8s-master01 localhost] and IPs [172.31.3.101 127.0.0.1 ::1]
[certs] Generating "etcd/peer" certificate and key
[certs] etcd/peer serving cert is signed for DNS names [k8s-master01 localhost] and IPs [172.31.3.101 127.0.0.1 ::1]
[certs] Generating "etcd/healthcheck-client" certificate and key
[certs] Generating "apiserver-etcd-client" certificate and key
[certs] Generating "sa" key and public key
[kubeconfig] Using kubeconfig folder "/etc/kubernetes"
[kubeconfig] Writing "admin.conf" kubeconfig file
[kubeconfig] Writing "kubelet.conf" kubeconfig file
[kubeconfig] Writing "controller-manager.conf" kubeconfig file
[kubeconfig] Writing "scheduler.conf" kubeconfig file
[kubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubeadm-flags.env"
[kubelet-start] Writing kubelet configuration to file "/var/lib/kubelet/config.yaml"
[kubelet-start] Starting the kubelet
[control-plane] Using manifest folder "/etc/kubernetes/manifests"
[control-plane] Creating static Pod manifest for "kube-apiserver"
[control-plane] Creating static Pod manifest for "kube-controller-manager"
[control-plane] Creating static Pod manifest for "kube-scheduler"
[etcd] Creating static Pod manifest for local etcd in "/etc/kubernetes/manifests"
[wait-control-plane] Waiting for the kubelet to boot up the control plane as static Pods from directory "/etc/kubernetes/manifests". This can take up to 4m0s
[apiclient] All control plane components are healthy after 15.546267 seconds
[upload-config] Storing the configuration used in ConfigMap "kubeadm-config" in the "kube-system" Namespace
[kubelet] Creating a ConfigMap "kubelet-config-1.22" in namespace kube-system with the configuration for the kubelets in the cluster
[upload-certs] Storing the certificates in Secret "kubeadm-certs" in the "kube-system" Namespace
[upload-certs] Using certificate key:
b3202c8538092768b83473fc065d2f58450cf284d84d380cc44c033c7bc057f8
[mark-control-plane] Marking the node k8s-master01 as control-plane by adding the labels: [node-role.kubernetes.io/master(deprecated) node-role.kubernetes.io/control-plane node.kubernetes.io/exclude-from-external-load-balancers]
[mark-control-plane] Marking the node k8s-master01 as control-plane by adding the taints [node-role.kubernetes.io/master:NoSchedule]
[bootstrap-token] Using token: 7t2weq.bjbawausm0jaxury
[bootstrap-token] Configuring bootstrap tokens, cluster-info ConfigMap, RBAC Roles
[bootstrap-token] configured RBAC rules to allow Node Bootstrap tokens to get nodes
[bootstrap-token] configured RBAC rules to allow Node Bootstrap tokens to post CSRs in order for nodes to get long term certificate credentials
[bootstrap-token] configured RBAC rules to allow the csrapprover controller automatically approve CSRs from a Node Bootstrap Token
[bootstrap-token] configured RBAC rules to allow certificate rotation for all node client certificates in the cluster
[bootstrap-token] Creating the "cluster-info" ConfigMap in the "kube-public" namespace
[kubelet-finalize] Updating "/etc/kubernetes/kubelet.conf" to point to a rotatable kubelet client certificate and key
[addons] Applied essential addon: CoreDNS
[addons] Applied essential addon: kube-proxy
Your Kubernetes control-plane has initialized successfully!
To start using your cluster, you need to run the following as a regular user:
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
Alternatively, if you are the root user, you can run:
export KUBECONFIG=/etc/kubernetes/admin.conf
You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
https://kubernetes.io/docs/concepts/cluster-administration/addons/
You can now join any number of the control-plane node running the following command on each as root:
kubeadm join 172.31.3.188:6443 --token 7t2weq.bjbawausm0jaxury \
--discovery-token-ca-cert-hash sha256:c5c3516af6157181f5d6b922b96d05461a13b4abbc8a5210f68bc3aebac729b1 \
--control-plane --certificate-key b3202c8538092768b83473fc065d2f58450cf284d84d380cc44c033c7bc057f8
Please note that the certificate-key gives access to cluster sensitive data, keep it secret!
As a safeguard, uploaded-certs will be deleted in two hours; If necessary, you can use
"kubeadm init phase upload-certs --upload-certs" to reload certs afterward.
Then you can join any number of worker nodes by running the following on each as root:
kubeadm join 172.31.3.188:6443 --token 7t2weq.bjbawausm0jaxury \
--discovery-token-ca-cert-hash sha256:c5c3516af6157181f5d6b922b96d05461a13b4abbc8a5210f68bc3aebac729b1
Master01节点配置环境变量，用于访问Kubernetes集群：
[root@k8s-master01 ~]# cat >> /root/.bashrc <<EOF
export KUBECONFIG=/etc/kubernetes/admin.conf
EOF
[root@k8s-master01 ~]# source .bashrc
#Kubectl 自动补全
#CentOS
[root@k8s-master01 ~]# yum -y install bash-completion
#Ubuntu
[root@k8s-master01 ~]# apt -y install bash-completion
[root@k8s-master01 ~]# source <(kubectl completion bash)
[root@k8s-master01 ~]# echo "source <(kubectl completion bash)" >> ~/.bashrc
root@k8s-master01:~# exit
logout
查看节点状态：
[root@k8s-master01 ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8s-master01 NotReady control-plane,master 71s v1.22.8
采用初始化安装方式，所有的系统组件均以容器的方式运行并且在kube-system命名空间内，此时可以查看Pod状态：
[root@k8s-master01 ~]# kubectl get pods -n kube-system -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
coredns-566c4546cf-w4ltd 0/1 Pending 0 86s <none> <none> <none> <none>
coredns-566c4546cf-wq78f 0/1 Pending 0 86s <none> <none> <none> <none>
etcd-k8s-master01 1/1 Running 0 86s 172.31.3.101 k8s-master01 <none> <none>
kube-apiserver-k8s-master01 1/1 Running 0 86s 172.31.3.101 k8s-master01 <none> <none>
kube-controller-manager-k8s-master01 1/1 Running 0 86s 172.31.3.101 k8s-master01 <none> <none>
kube-proxy-f85bf 1/1 Running 0 86s 172.31.3.101 k8s-master01 <none> <none>
kube-scheduler-k8s-master01 1/1 Running 0 86s 172.31.3.101 k8s-master01 <none> <none>
13.高可用Master
添加master02和master03:
kubeadm join 172.31.3.188:6443 --token 7t2weq.bjbawausm0jaxury \
--discovery-token-ca-cert-hash sha256:c5c3516af6157181f5d6b922b96d05461a13b4abbc8a5210f68bc3aebac729b1 \
--control-plane --certificate-key b3202c8538092768b83473fc065d2f58450cf284d84d380cc44c033c7bc057f8
[root@k8s-master01 ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8s-master01 NotReady control-plane,master 3m29s v1.22.8
k8s-master02.example.local NotReady control-plane,master 58s v1.22.8
k8s-master03.example.local NotReady control-plane,master 6s v1.22.8
14.Node节点的配置
添加node01、node02、node03:
kubeadm join 172.31.3.188:6443 --token 7t2weq.bjbawausm0jaxury \
--discovery-token-ca-cert-hash sha256:c5c3516af6157181f5d6b922b96d05461a13b4abbc8a5210f68bc3aebac729b1
[root@k8s-master01 ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8s-master01 NotReady control-plane,master 4m36s v1.22.8
k8s-master02.example.local NotReady control-plane,master 2m5s v1.22.8
k8s-master03.example.local NotReady control-plane,master 73s v1.22.8
k8s-node01.example.local NotReady <none> 36s v1.22.8
k8s-node02.example.local NotReady <none> 24s v1.22.8
k8s-node03.example.local NotReady <none> 12s v1.22.8
15.安装Calico
15.1 安装calico
[root@ansible-server ansible]# mkdir -p roles/calico/{tasks,vars,templates}
[root@ansible-server ansible]# cd roles/calico
[root@ansible-server calico]# ls
tasks templates vars
#下面HARBOR_DOMAIN的地址设置成自己的harbor域名地址
[root@ansible-server calico]# vim vars/main.yml
HARBOR_DOMAIN: harbor.raymonds.cc
[root@ansible-server calico]# cat templates/calico-etcd.yaml.j2
---
# Source: calico/templates/calico-etcd-secrets.yaml
# The following contains k8s Secrets for use with a TLS enabled etcd cluster.
# For information on populating Secrets, see http://kubernetes.io/docs/user-guide/secrets/
apiVersion: v1
kind: Secret
type: Opaque
metadata:
name: calico-etcd-secrets
namespace: kube-system
data:
# Populate the following with etcd TLS configuration if desired, but leave blank if
# not using TLS for etcd.
# The keys below should be uncommented and the values populated with the base64
# encoded contents of each file that would be associated with the TLS data.
# Example command for encoding a file contents: cat <file> | base64 -w 0
# etcd-key: null
# etcd-cert: null
# etcd-ca: null
---
# Source: calico/templates/calico-config.yaml
# This ConfigMap is used to configure a self-hosted Calico installation.
kind: ConfigMap
apiVersion: v1
metadata:
name: calico-config
namespace: kube-system
data:
# Configure this with the location of your etcd cluster.
etcd_endpoints: "http://<ETCD_IP>:<ETCD_PORT>"
# If you're using TLS enabled etcd uncomment the following.
# You must also populate the Secret below with these files.
etcd_ca: "" # "/calico-secrets/etcd-ca"
etcd_cert: "" # "/calico-secrets/etcd-cert"
etcd_key: "" # "/calico-secrets/etcd-key"
# Typha is disabled.
typha_service_name: "none"
# Configure the backend to use.
calico_backend: "bird"
# Configure the MTU to use for workload interfaces and tunnels.
# By default, MTU is auto-detected, and explicitly setting this field should not be required.
# You can override auto-detection by providing a non-zero value.
veth_mtu: "0"
# The CNI network configuration to install on each node. The special
# values in this config will be automatically populated.
cni_network_config: |-
{
"name": "k8s-pod-network",
"cniVersion": "0.3.1",
"plugins": [
{
"type": "calico",
"log_level": "info",
"log_file_path": "/var/log/calico/cni/cni.log",
"etcd_endpoints": "__ETCD_ENDPOINTS__",
"etcd_key_file": "__ETCD_KEY_FILE__",
"etcd_cert_file": "__ETCD_CERT_FILE__",
"etcd_ca_cert_file": "__ETCD_CA_CERT_FILE__",
"mtu": __CNI_MTU__,
"ipam": {
"type": "calico-ipam"
},
"policy": {
"type": "k8s"
},
"kubernetes": {
"kubeconfig": "__KUBECONFIG_FILEPATH__"
}
},
{
"type": "portmap",
"snat": true,
"capabilities": {
"portMappings": true}
},
{
"type": "bandwidth",
"capabilities": {
"bandwidth": true}
}
]
}
---
# Source: calico/templates/calico-kube-controllers-rbac.yaml
# Include a clusterrole for the kube-controllers component,
# and bind it to the calico-kube-controllers serviceaccount.
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: calico-kube-controllers
rules:
# Pods are monitored for changing labels.
# The node controller monitors Kubernetes nodes.
# Namespace and serviceaccount labels are used for policy.
- apiGroups: [""]
resources:
- pods
- nodes
- namespaces
- serviceaccounts
verbs:
- watch
- list
- get
# Watch for changes to Kubernetes NetworkPolicies.
- apiGroups: ["networking.k8s.io"]
resources:
- networkpolicies
verbs:
- watch
- list
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: calico-kube-controllers
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: calico-kube-controllers
subjects:
- kind: ServiceAccount
name: calico-kube-controllers
namespace: kube-system
---
---
# Source: calico/templates/calico-node-rbac.yaml
# Include a clusterrole for the calico-node DaemonSet,
# and bind it to the calico-node serviceaccount.
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: calico-node
rules:
# The CNI plugin needs to get pods, nodes, and namespaces.
- apiGroups: [""]
resources:
- pods
- nodes
- namespaces
verbs:
- get
# EndpointSlices are used for Service-based network policy rule
# enforcement.
- apiGroups: ["discovery.k8s.io"]
resources:
- endpointslices
verbs:
- watch
- list
- apiGroups: [""]
resources:
- endpoints
- services
verbs:
# Used to discover service IPs for advertisement.
- watch
- list
# Pod CIDR auto-detection on kubeadm needs access to config maps.
- apiGroups: [""]
resources:
- configmaps
verbs:
- get
- apiGroups: [""]
resources:
- nodes/status
verbs:
# Needed for clearing NodeNetworkUnavailable flag.
- patch
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: calico-node
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: calico-node
subjects:
- kind: ServiceAccount
name: calico-node
namespace: kube-system
---
# Source: calico/templates/calico-node.yaml
# This manifest installs the calico-node container, as well
# as the CNI plugins and network config on
# each master and worker node in a Kubernetes cluster.
kind: DaemonSet
apiVersion: apps/v1
metadata:
name: calico-node
namespace: kube-system
labels:
k8s-app: calico-node
spec:
selector:
matchLabels:
k8s-app: calico-node
updateStrategy:
type: RollingUpdate
rollingUpdate:
maxUnavailable: 1
template:
metadata:
labels:
k8s-app: calico-node
spec:
nodeSelector:
kubernetes.io/os: linux
hostNetwork: true
tolerations:
# Make sure calico-node gets scheduled on all nodes.
- effect: NoSchedule
operator: Exists
# Mark the pod as a critical add-on for rescheduling.
- key: CriticalAddonsOnly
operator: Exists
- effect: NoExecute
operator: Exists
serviceAccountName: calico-node
# Minimize downtime during a rolling upgrade or deletion; tell Kubernetes to do a "force
# deletion": https://kubernetes.io/docs/concepts/workloads/pods/pod/#termination-of-pods.
terminationGracePeriodSeconds: 0
priorityClassName: system-node-critical
initContainers:
# This container installs the CNI binaries
# and CNI network config file on each node.
- name: install-cni
image: docker.io/calico/cni:v3.21.4
command: ["/opt/cni/bin/install"]
envFrom:
- configMapRef:
# Allow KUBERNETES_SERVICE_HOST and KUBERNETES_SERVICE_PORT to be overridden for eBPF mode.
name: kubernetes-services-endpoint
optional: true
env:
# Name of the CNI config file to create.
- name: CNI_CONF_NAME
value: "10-calico.conflist"
# The CNI network config to install on each node.
- name: CNI_NETWORK_CONFIG
valueFrom:
configMapKeyRef:
name: calico-config
key: cni_network_config
# The location of the etcd cluster.
- name: ETCD_ENDPOINTS
valueFrom:
configMapKeyRef:
name: calico-config
key: etcd_endpoints
# CNI MTU Config variable
- name: CNI_MTU
valueFrom:
configMapKeyRef:
name: calico-config
key: veth_mtu
# Prevents the container from sleeping forever.
- name: SLEEP
value: "false"
volumeMounts:
- mountPath: /host/opt/cni/bin
name: cni-bin-dir
- mountPath: /host/etc/cni/net.d
name: cni-net-dir
- mountPath: /calico-secrets
name: etcd-certs
securityContext:
privileged: true
# Adds a Flex Volume Driver that creates a per-pod Unix Domain Socket to allow Dikastes
# to communicate with Felix over the Policy Sync API.
- name: flexvol-driver
image: docker.io/calico/pod2daemon-flexvol:v3.21.4
volumeMounts:
- name: flexvol-driver-host
mountPath: /host/driver
securityContext:
privileged: true
containers:
# Runs calico-node container on each Kubernetes node. This
# container programs network policy and routes on each
# host.
- name: calico-node
image: docker.io/calico/node:v3.21.4
envFrom:
- configMapRef:
# Allow KUBERNETES_SERVICE_HOST and KUBERNETES_SERVICE_PORT to be overridden for eBPF mode.
name: kubernetes-services-endpoint
optional: true
env:
# The location of the etcd cluster.
- name: ETCD_ENDPOINTS
valueFrom:
configMapKeyRef:
name: calico-config
key: etcd_endpoints
# Location of the CA certificate for etcd.
- name: ETCD_CA_CERT_FILE
valueFrom:
configMapKeyRef:
name: calico-config
key: etcd_ca
# Location of the client key for etcd.
- name: ETCD_KEY_FILE
valueFrom:
configMapKeyRef:
name: calico-config
key: etcd_key
# Location of the client certificate for etcd.
- name: ETCD_CERT_FILE
valueFrom:
configMapKeyRef:
name: calico-config
key: etcd_cert
# Set noderef for node controller.
- name: CALICO_K8S_NODE_REF
valueFrom:
fieldRef:
fieldPath: spec.nodeName
# Choose the backend to use.
- name: CALICO_NETWORKING_BACKEND
valueFrom:
configMapKeyRef:
name: calico-config
key: calico_backend
# Cluster type to identify the deployment type
- name: CLUSTER_TYPE
value: "k8s,bgp"
# Auto-detect the BGP IP address.
- name: IP
value: "autodetect"
# Enable IPIP
- name: CALICO_IPV4POOL_IPIP
value: "Always"
# Enable or Disable VXLAN on the default IP pool.
- name: CALICO_IPV4POOL_VXLAN
value: "Never"
# Set MTU for tunnel device used if ipip is enabled
- name: FELIX_IPINIPMTU
valueFrom:
configMapKeyRef:
name: calico-config
key: veth_mtu
# Set MTU for the VXLAN tunnel device.
- name: FELIX_VXLANMTU
valueFrom:
configMapKeyRef:
name: calico-config
key: veth_mtu
# Set MTU for the Wireguard tunnel device.
- name: FELIX_WIREGUARDMTU
valueFrom:
configMapKeyRef:
name: calico-config
key: veth_mtu
# The default IPv4 pool to create on startup if none exists. Pod IPs will be
# chosen from this range. Changing this value after installation will have
# no effect. This should fall within `--cluster-cidr`.
# - name: CALICO_IPV4POOL_CIDR
# value: "192.168.0.0/16"
# Disable file logging so `kubectl logs` works.
- name: CALICO_DISABLE_FILE_LOGGING
value: "true"
# Set Felix endpoint to host default action to ACCEPT.
- name: FELIX_DEFAULTENDPOINTTOHOSTACTION
value: "ACCEPT"
# Disable IPv6 on Kubernetes.
- name: FELIX_IPV6SUPPORT
value: "false"
- name: FELIX_HEALTHENABLED
value: "true"
securityContext:
privileged: true
resources:
requests:
cpu: 250m
lifecycle:
preStop:
exec:
command:
- /bin/calico-node
- -shutdown
livenessProbe:
exec:
command:
- /bin/calico-node
- -felix-live
- -bird-live
periodSeconds: 10
initialDelaySeconds: 10
failureThreshold: 6
timeoutSeconds: 10
readinessProbe:
exec:
command:
- /bin/calico-node
- -felix-ready
- -bird-ready
periodSeconds: 10
timeoutSeconds: 10
volumeMounts:
# For maintaining CNI plugin API credentials.
- mountPath: /host/etc/cni/net.d
name: cni-net-dir
readOnly: false
- mountPath: /lib/modules
name: lib-modules
readOnly: true
- mountPath: /run/xtables.lock
name: xtables-lock
readOnly: false
- mountPath: /var/run/calico
name: var-run-calico
readOnly: false
- mountPath: /var/lib/calico
name: var-lib-calico
readOnly: false
- mountPath: /calico-secrets
name: etcd-certs
- name: policysync
mountPath: /var/run/nodeagent
# For eBPF mode, we need to be able to mount the BPF filesystem at /sys/fs/bpf so we mount in the
# parent directory.
- name: sysfs
mountPath: /sys/fs/
# Bidirectional means that, if we mount the BPF filesystem at /sys/fs/bpf it will propagate to the host.
# If the host is known to mount that filesystem already then Bidirectional can be omitted.
mountPropagation: Bidirectional
- name: cni-log-dir
mountPath: /var/log/calico/cni
readOnly: true
volumes:
# Used by calico-node.
- name: lib-modules
hostPath:
path: /lib/modules
- name: var-run-calico
hostPath:
path: /var/run/calico
- name: var-lib-calico
hostPath:
path: /var/lib/calico
- name: xtables-lock
hostPath:
path: /run/xtables.lock
type: FileOrCreate
- name: sysfs
hostPath:
path: /sys/fs/
type: DirectoryOrCreate
# Used to install CNI.
- name: cni-bin-dir
hostPath:
path: /opt/cni/bin
- name: cni-net-dir
hostPath:
path: /etc/cni/net.d
# Used to access CNI logs.
- name: cni-log-dir
hostPath:
path: /var/log/calico/cni
# Mount in the etcd TLS secrets with mode 400.
# See https://kubernetes.io/docs/concepts/configuration/secret/
- name: etcd-certs
secret:
secretName: calico-etcd-secrets
defaultMode: 0400
# Used to create per-pod Unix Domain Sockets
- name: policysync
hostPath:
type: DirectoryOrCreate
path: /var/run/nodeagent
# Used to install Flex Volume Driver
- name: flexvol-driver-host
hostPath:
type: DirectoryOrCreate
path: /usr/libexec/kubernetes/kubelet-plugins/volume/exec/nodeagent~uds
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: calico-node
namespace: kube-system
---
# Source: calico/templates/calico-kube-controllers.yaml
# See https://github.com/projectcalico/kube-controllers
apiVersion: apps/v1
kind: Deployment
metadata:
name: calico-kube-controllers
namespace: kube-system
labels:
k8s-app: calico-kube-controllers
spec:
# The controllers can only have a single active instance.
replicas: 1
selector:
matchLabels:
k8s-app: calico-kube-controllers
strategy:
type: Recreate
template:
metadata:
name: calico-kube-controllers
namespace: kube-system
labels:
k8s-app: calico-kube-controllers
spec:
nodeSelector:
kubernetes.io/os: linux
tolerations:
# Mark the pod as a critical add-on for rescheduling.
- key: CriticalAddonsOnly
operator: Exists
- key: node-role.kubernetes.io/master
effect: NoSchedule
serviceAccountName: calico-kube-controllers
priorityClassName: system-cluster-critical
# The controllers must run in the host network namespace so that
# it isn't governed by policy that would prevent it from working.
hostNetwork: true
containers:
- name: calico-kube-controllers
image: docker.io/calico/kube-controllers:v3.21.4
env:
# The location of the etcd cluster.
- name: ETCD_ENDPOINTS
valueFrom:
configMapKeyRef:
name: calico-config
key: etcd_endpoints
# Location of the CA certificate for etcd.
- name: ETCD_CA_CERT_FILE
valueFrom:
configMapKeyRef:
name: calico-config
key: etcd_ca
# Location of the client key for etcd.
- name: ETCD_KEY_FILE
valueFrom:
configMapKeyRef:
name: calico-config
key: etcd_key
# Location of the client certificate for etcd.
- name: ETCD_CERT_FILE
valueFrom:
configMapKeyRef:
name: calico-config
key: etcd_cert
# Choose which controllers to run.
- name: ENABLED_CONTROLLERS
value: policy,namespace,serviceaccount,workloadendpoint,node
volumeMounts:
# Mount in the etcd TLS secrets.
- mountPath: /calico-secrets
name: etcd-certs
livenessProbe:
exec:
command:
- /usr/bin/check-status
- -l
periodSeconds: 10
initialDelaySeconds: 10
failureThreshold: 6
timeoutSeconds: 10
readinessProbe:
exec:
command:
- /usr/bin/check-status
- -r
periodSeconds: 10
volumes:
# Mount in the etcd TLS secrets with mode 400.
# See https://kubernetes.io/docs/concepts/configuration/secret/
- name: etcd-certs
secret:
secretName: calico-etcd-secrets
defaultMode: 0440
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: calico-kube-controllers
namespace: kube-system
---
# This manifest creates a Pod Disruption Budget for Controller to allow K8s Cluster Autoscaler to evict
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
name: calico-kube-controllers
namespace: kube-system
labels:
k8s-app: calico-kube-controllers
spec:
maxUnavailable: 1
selector:
matchLabels:
k8s-app: calico-kube-controllers
---
# Source: calico/templates/calico-typha.yaml
---
# Source: calico/templates/configure-canal.yaml
---
# Source: calico/templates/kdd-crds.yaml
#修改下面内容
[root@ansible-server calico]# grep "etcd_endpoints:.*" templates/calico-etcd.yaml.j2
etcd_endpoints: "http://<ETCD_IP>:<ETCD_PORT>"
[root@ansible-server calico]# sed -i 's#etcd_endpoints: "http://<ETCD_IP>:<ETCD_PORT>"#etcd_endpoints: "{% for i in groups.master %}https://{
{ hostvars[i].ansible_default_ipv4.address }}:2379{% if not loop.last %},{% endif %}{% endfor %}"#g' templates/calico-etcd.yaml.j2
[root@ansible-server calico]# grep "etcd_endpoints:.*" templates/calico-etcd.yaml.j2
etcd_endpoints: {
% for i in groups.master %}https://{
{
hostvars[i].ansible_default_ipv4.address }}{
% if not loop.last %},{
% endif %}{
% endfor %}
[root@ansible-server calico]# vim tasks/calico_file.yml
- name: copy calico-etcd.yaml file
template:
src: calico-etcd.yaml.j2
dest: /root/calico-etcd.yaml
when:
- ansible_hostname=="k8s-master01"
[root@ansible-server calico]# vim tasks/config.yml
- name: get ETCD_KEY key
shell:
cmd: cat /etc/kubernetes/pki/etcd/server.key | base64 | tr -d '\n'
register: ETCD_KEY
when:
- ansible_hostname=="k8s-master01"
- name: Modify the ".*etcd-key:.*" line
replace:
path: /root/calico-etcd.yaml
regexp: '# (etcd-key:) null'
replace: '\1 {
{ ETCD_KEY.stdout }}'
when:
- ansible_hostname=="k8s-master01"
- name: get ETCD_CERT key
shell:
cmd: cat /etc/kubernetes/pki/etcd/server.crt | base64 | tr -d '\n'
register: ETCD_CERT
when:
- ansible_hostname=="k8s-master01"
- name: Modify the ".*etcd-cert:.*" line
replace:
path: /root/calico-etcd.yaml
regexp: '# (etcd-cert:) null'
replace: '\1 {
{ ETCD_CERT.stdout }}'
when:
- ansible_hostname=="k8s-master01"
- name: get ETCD_CA key
shell:
cmd: cat /etc/kubernetes/pki/etcd/ca.crt | base64 | tr -d '\n'
when:
- ansible_hostname=="k8s-master01"
register: ETCD_CA
- name: Modify the ".*etcd-ca:.*" line
replace:
path: /root/calico-etcd.yaml
regexp: '# (etcd-ca:) null'
replace: '\1 {
{ ETCD_CA.stdout }}'
when:
- ansible_hostname=="k8s-master01"
- name: Modify the ".*etcd_ca:.*" line
replace:
path: /root/calico-etcd.yaml
regexp: '(etcd_ca:) ""'
replace: '\1 "/calico-secrets/etcd-ca"'
when:
- ansible_hostname=="k8s-master01"
- name: Modify the ".*etcd_cert:.*" line
replace:
path: /root/calico-etcd.yaml
regexp: '(etcd_cert:) ""'
replace: '\1 "/calico-secrets/etcd-cert"'
when:
- ansible_hostname=="k8s-master01"
- name: Modify the ".*etcd_key:.*" line
replace:
path: /root/calico-etcd.yaml
regexp: '(etcd_key:) ""'
replace: '\1 "/calico-secrets/etcd-key"'
when:
- ansible_hostname=="k8s-master01"
- name: Modify the ".*CALICO_IPV4POOL_CIDR.*" line
replace:
path: /root/calico-etcd.yaml
regexp: '# (- name: CALICO_IPV4POOL_CIDR)'
replace: '\1'
when:
- ansible_hostname=="k8s-master01"
- name: get POD_SUBNET
shell:
cmd: cat /etc/kubernetes/manifests/kube-controller-manager.yaml | grep cluster-cidr= | awk -F= '{print $NF}'
register: POD_SUBNET
when:
- ansible_hostname=="k8s-master01"
- name: Modify the ".*192.168.0.0.*" line
replace:
path: /root/calico-etcd.yaml
regexp: '# (value:) "192.168.0.0/16"'
replace: ' \1 "{
{ POD_SUBNET.stdout }}"'
when:
- ansible_hostname=="k8s-master01"
- name: Modify the "image:" line
replace:
path: /root/calico-etcd.yaml
regexp: '(.*image:) docker.io/calico(/.*)'
replace: '\1 {
{ HARBOR_DOMAIN }}/google_containers\2'
when:
- ansible_hostname=="k8s-master01"
[root@ansible-server calico]# vim tasks/download_images.yml
- name: get calico version
shell:
chdir: /root
cmd: awk -F "/" '/image:/{print $NF}' calico-etcd.yaml
register: CALICO_VERSION
when:
- ansible_hostname=="k8s-master01"
- name: download calico image
shell: |
{
% for i in CALICO_VERSION.stdout_lines %}
docker pull registry.cn-beijing.aliyuncs.com/raymond9/{
{
i }}
docker tag registry.cn-beijing.aliyuncs.com/raymond9/{
{
i }} {
{
HARBOR_DOMAIN }}/google_containers/{
{
i }}
docker rmi registry.cn-beijing.aliyuncs.com/raymond9/{
{
i }}
docker push {
{
HARBOR_DOMAIN }}/google_containers/{
{
i }}
{
% endfor %}
when:
- ansible_hostname=="k8s-master01"
[root@ansible-server calico]# vim tasks/install_calico.yml
- name: install calico
shell:
chdir: /root
cmd: "kubectl --kubeconfig=/etc/kubernetes/admin.conf apply -f calico-etcd.yaml"
when:
- ansible_hostname=="k8s-master01"
[root@ansible-server calico]# vim tasks/main.yml
- include: calico_file.yml
- include: config.yml
- include: download_images.yml
- include: install_calico.yml
[root@ansible-server calico]# cd ../../
[root@ansible-server ansible]# tree roles/calico
roles/calico
├── tasks
│ ├── calico_file.yml
│ ├── config.yml
│ ├── download_images.yml
│ ├── install_calico.yml
│ └── main.yml
├── templates
│ └── calico-etcd.yaml.j2
└── vars
└── main.yml
3 directories, 7 files
[root@ansible-server ansible]# vim calico_role.yml
---
- hosts: master
roles:
- role: calico
[root@ansible-server ansible]# ansible-playbook calico_role.yml
15.2 验证calico
[root@k8s-master01 ~]# kubectl get pod -A |grep calico
kube-system calico-kube-controllers-7dd7f59c79-qnqpq 1/1 Running 0 89s
kube-system calico-node-8v2wj 1/1 Running 0 89s
kube-system calico-node-c7lx5 1/1 Running 0 89s
kube-system calico-node-n2kqq 1/1 Running 0 89s
kube-system calico-node-plbsk 1/1 Running 0 89s
kube-system calico-node-pz2nw 1/1 Running 0 89s
kube-system calico-node-xlpm4 1/1 Running 0 89s
[root@k8s-master01 ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8s-master01 Ready control-plane,master 37m v1.22.8
k8s-master02.example.local Ready control-plane,master 35m v1.22.8
k8s-master03.example.local Ready control-plane,master 34m v1.22.8
k8s-node01.example.local Ready <none> 33m v1.22.8
k8s-node02.example.local Ready <none> 33m v1.22.8
k8s-node03.example.local Ready <none> 33m v1.22.8
16.安装Metrics
16.1 安装metrics
[root@ansible-server ansible]# mkdir -p roles/metrics/{files,vars,tasks}
[root@ansible-server ansible]# cd roles/metrics/
[root@ansible-server metrics]# ls
files tasks vars
#下面NODE变量改成自己NODE的IP地址，HARBOR_DOMAIN的地址设置成自己的harbor域名地址
[root@ansible-server metrics]# vim vars/main.yml
NODE:
- 172.31.3.108
- 172.31.3.109
- 172.31.3.110
HARBOR_DOMAIN: harbor.raymonds.cc
[root@ansible-server metrics]# cat files/components.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
labels:
k8s-app: metrics-server
name: metrics-server
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
labels:
k8s-app: metrics-server
rbac.authorization.k8s.io/aggregate-to-admin: "true"
rbac.authorization.k8s.io/aggregate-to-edit: "true"
rbac.authorization.k8s.io/aggregate-to-view: "true"
name: system:aggregated-metrics-reader
rules:
- apiGroups:
- metrics.k8s.io
resources:
- pods
- nodes
verbs:
- get
- list
- watch
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
labels:
k8s-app: metrics-server
name: system:metrics-server
rules:
- apiGroups:
- ""
resources:
- pods
- nodes
- nodes/stats
- namespaces
- configmaps
verbs:
- get
- list
- watch
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
labels:
k8s-app: metrics-server
name: metrics-server-auth-reader
namespace: kube-system
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: extension-apiserver-authentication-reader
subjects:
- kind: ServiceAccount
name: metrics-server
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
labels:
k8s-app: metrics-server
name: metrics-server:system:auth-delegator
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: system:auth-delegator
subjects:
- kind: ServiceAccount
name: metrics-server
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
labels:
k8s-app: metrics-server
name: system:metrics-server
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: system:metrics-server
subjects:
- kind: ServiceAccount
name: metrics-server
namespace: kube-system
---
apiVersion: v1
kind: Service
metadata:
labels:
k8s-app: metrics-server
name: metrics-server
namespace: kube-system
spec:
ports:
- name: https
port: 443
protocol: TCP
targetPort: https
selector:
k8s-app: metrics-server
---
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
k8s-app: metrics-server
name: metrics-server
namespace: kube-system
spec:
selector:
matchLabels:
k8s-app: metrics-server
strategy:
rollingUpdate:
maxUnavailable: 0
template:
metadata:
labels:
k8s-app: metrics-server
spec:
containers:
- args:
- --cert-dir=/tmp
- --secure-port=4443
- --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
- --kubelet-use-node-status-port
- --metric-resolution=15s
image: k8s.gcr.io/metrics-server/metrics-server:v0.5.2
imagePullPolicy: IfNotPresent
livenessProbe:
failureThreshold: 3
httpGet:
path: /livez
port: https
scheme: HTTPS
periodSeconds: 10
name: metrics-server
ports:
- containerPort: 4443
name: https
protocol: TCP
readinessProbe:
failureThreshold: 3
httpGet:
path: /readyz
port: https
scheme: HTTPS
initialDelaySeconds: 20
periodSeconds: 10
resources:
requests:
cpu: 100m
memory: 200Mi
securityContext:
readOnlyRootFilesystem: true
runAsNonRoot: true
runAsUser: 1000
volumeMounts:
- mountPath: /tmp
name: tmp-dir
nodeSelector:
kubernetes.io/os: linux
priorityClassName: system-cluster-critical
serviceAccountName: metrics-server
volumes:
- emptyDir: {
}
name: tmp-dir
---
apiVersion: apiregistration.k8s.io/v1
kind: APIService
metadata:
labels:
k8s-app: metrics-server
name: v1beta1.metrics.k8s.io
spec:
group: metrics.k8s.io
groupPriorityMinimum: 100
insecureSkipTLSVerify: true
service:
name: metrics-server
namespace: kube-system
version: v1beta1
versionPriority: 100
[root@ansible-server metrics]# vim files/components.yaml
...
spec:
containers:
- args:
- --cert-dir=/tmp
- --secure-port=4443
- --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
- --kubelet-use-node-status-port
- --metric-resolution=15s
#添加下面内容
- --kubelet-insecure-tls
- --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.crt
- --requestheader-username-headers=X-Remote-User
- --requestheader-group-headers=X-Remote-Group
- --requestheader-extra-headers-prefix=X-Remote-Extra-
...
volumeMounts:
- mountPath: /tmp
name: tmp-dir
#添加下面内容
- name: ca-ssl
mountPath: /etc/kubernetes/pki
...
volumes:
- emptyDir: {
}
name: tmp-dir
#添加下面内容
- name: ca-ssl
hostPath:
path: /etc/kubernetes/pki
...
[root@ansible-server metrics]# vim tasks/metrics_file.yml
- name: copy components.yaml file
copy:
src: components.yaml
dest: /root/components.yaml
[root@ansible-server metrics]# vim tasks/config.yml
- name: transfer front-proxy-ca.crt file from mater01 to node
synchronize:
src: /etc/kubernetes/pki/front-proxy-ca.crt
dest: /etc/kubernetes/pki/front-proxy-ca.crt
mode: pull
delegate_to: "{
{ item }}"
loop:
"{
{ NODE }}"
- name: Modify the "image:" line
replace:
path: /root/components.yaml
regexp: '(.*image:) k8s.gcr.io/metrics-server(/.*)'
replace: '\1 {
{ HARBOR_DOMAIN }}/google_containers\2'
[root@ansible-server metrics]# vim tasks/download_images.yml
- name: get metrics version
shell:
chdir: /root
cmd: awk -F "/" '/image:/{print $NF}' components.yaml
register: METRICS_VERSION
- name: download metrics image
shell: |
{
% for i in METRICS_VERSION.stdout_lines %}
docker pull registry.aliyuncs.com/google_containers/{
{
i }}
docker tag registry.aliyuncs.com/google_containers/{
{
i }} {
{
HARBOR_DOMAIN }}/google_containers/{
{
i }}
docker rmi registry.aliyuncs.com/google_containers/{
{
i }}
docker push {
{
HARBOR_DOMAIN }}/google_containers/{
{
i }}
{
% endfor %}
[root@ansible-server metrics]# vim tasks/install_metrics.yml
- name: install metrics
shell:
chdir: /root
cmd: "kubectl --kubeconfig=/etc/kubernetes/admin.conf apply -f components.yaml"
[root@ansible-server metrics]# vim tasks/main.yml
- include: metrics_file.yml
- include: config.yml
- include: download_images.yml
- include: install_metrics.yml
[root@ansible-server metrics]# cd ../../
[root@ansible-server ansible]# tree roles/metrics/
roles/metrics/
├── files
│ └── components.yaml
├── tasks
│ ├── config.yml
│ ├── download_images.yml
│ ├── install_metrics.yml
│ ├── main.yml
│ └── metrics_file.yml
└── vars
└── main.yml
3 directories, 7 files
[root@ansible-server ansible]# vim metrics_role.yml
---
- hosts: master01
roles:
- role: metrics
[root@ansible-server ansible]# ansible-playbook metrics_role.yml
16.2 验证metrics
[root@k8s-master01 ~]# kubectl get pod -n kube-system |grep metrics
metrics-server-9787b55bd-x75nn 1/1 Running 0 18s
[root@k8s-master01 ~]# kubectl top node
NAME CPU(cores) CPU% MEMORY(bytes) MEMORY%
k8s-master01 159m 7% 1542Mi 40%
k8s-master02.example.local 133m 6% 1225Mi 32%
k8s-master03.example.local 141m 7% 1182Mi 30%
k8s-node01.example.local 63m 3% 768Mi 20%
k8s-node02.example.local 62m 3% 762Mi 19%
k8s-node03.example.local 68m 3% 799Mi 20%
17.安装dashboard
17.1 安装dashboard
[root@ansible-server ansible]# mkdir -p roles/dashboard/{tasks,vars,files,templates}
[root@ansible-server ansible]# cd roles/dashboard/
[root@ansible-server dashboard]# ls
files tasks templates vars
#下面HARBOR_DOMAIN的地址设置成自己的harbor域名地址
[root@ansible-server dashboard]# vim vars/main.yml
HARBOR_DOMAIN: harbor.raymonds.cc
NODEPORT: 30005
[root@ansible-server dashboard]# cat templates/recommended.yaml.j2
# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: Namespace
metadata:
name: kubernetes-dashboard
---
apiVersion: v1
kind: ServiceAccount
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
ports:
- port: 443
targetPort: 8443
selector:
k8s-app: kubernetes-dashboard
type: NodePort
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-certs
namespace: kubernetes-dashboard
type: Opaque
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-csrf
namespace: kubernetes-dashboard
type: Opaque
data:
csrf: ""
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-key-holder
namespace: kubernetes-dashboard
type: Opaque
---
kind: ConfigMap
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-settings
namespace: kubernetes-dashboard
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
rules:
# Allow Dashboard to get, update and delete Dashboard exclusive secrets.
- apiGroups: [""]
resources: ["secrets"]
resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs", "kubernetes-dashboard-csrf"]
verbs: ["get", "update", "delete"]
# Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map.
- apiGroups: [""]
resources: ["configmaps"]
resourceNames: ["kubernetes-dashboard-settings"]
verbs: ["get", "update"]
# Allow Dashboard to get metrics.
- apiGroups: [""]
resources: ["services"]
resourceNames: ["heapster", "dashboard-metrics-scraper"]
verbs: ["proxy"]
- apiGroups: [""]
resources: ["services/proxy"]
resourceNames: ["heapster", "http:heapster:", "https:heapster:", "dashboard-metrics-scraper", "http:dashboard-metrics-scraper"]
verbs: ["get"]
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
rules:
# Allow Metrics Scraper to get metrics from the Metrics server
- apiGroups: ["metrics.k8s.io"]
resources: ["pods", "nodes"]
verbs: ["get", "list", "watch"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: kubernetes-dashboard
subjects:
- kind: ServiceAccount
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: kubernetes-dashboard
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: kubernetes-dashboard
subjects:
- kind: ServiceAccount
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
kind: Deployment
apiVersion: apps/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
replicas: 1
revisionHistoryLimit: 10
selector:
matchLabels:
k8s-app: kubernetes-dashboard
template:
metadata:
labels:
k8s-app: kubernetes-dashboard
spec:
containers:
- name: kubernetes-dashboard
image: kubernetesui/dashboard:v2.3.1
imagePullPolicy: IfNotPresent
ports:
- containerPort: 8443
protocol: TCP
args:
- --auto-generate-certificates
- --namespace=kubernetes-dashboard
# Uncomment the following line to manually specify Kubernetes API server Host
# If not specified, Dashboard will attempt to auto discover the API server and connect
# to it. Uncomment only if the default does not work.
# - --apiserver-host=http://my-address:port
volumeMounts:
- name: kubernetes-dashboard-certs
mountPath: /certs
# Create on-disk volume to store exec logs
- mountPath: /tmp
name: tmp-volume
livenessProbe:
httpGet:
scheme: HTTPS
path: /
port: 8443
initialDelaySeconds: 30
timeoutSeconds: 30
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
runAsUser: 1001
runAsGroup: 2001
volumes:
- name: kubernetes-dashboard-certs
secret:
secretName: kubernetes-dashboard-certs
- name: tmp-volume
emptyDir: {
}
serviceAccountName: kubernetes-dashboard
nodeSelector:
"kubernetes.io/os": linux
# Comment the following tolerations if Dashboard must not be deployed on master
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
---
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: dashboard-metrics-scraper
name: dashboard-metrics-scraper
namespace: kubernetes-dashboard
spec:
ports:
- port: 8000
targetPort: 8000
selector:
k8s-app: dashboard-metrics-scraper
---
kind: Deployment
apiVersion: apps/v1
metadata:
labels:
k8s-app: dashboard-metrics-scraper
name: dashboard-metrics-scraper
namespace: kubernetes-dashboard
spec:
replicas: 1
revisionHistoryLimit: 10
selector:
matchLabels:
k8s-app: dashboard-metrics-scraper
template:
metadata:
labels:
k8s-app: dashboard-metrics-scraper
annotations:
seccomp.security.alpha.kubernetes.io/pod: 'runtime/default'
spec:
containers:
- name: dashboard-metrics-scraper
image: kubernetesui/metrics-scraper:v1.0.6
imagePullPolicy: IfNotPresent
ports:
- containerPort: 8000
protocol: TCP
livenessProbe:
httpGet:
scheme: HTTP
path: /
port: 8000
initialDelaySeconds: 30
timeoutSeconds: 30
volumeMounts:
- mountPath: /tmp
name: tmp-volume
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
runAsUser: 1001
runAsGroup: 2001
serviceAccountName: kubernetes-dashboard
nodeSelector:
"kubernetes.io/os": linux
# Comment the following tolerations if Dashboard must not be deployed on master
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
volumes:
- name: tmp-volume
emptyDir: {
}
[root@ansible-server dashboard]# vim templates/recommended.yaml.j2
...
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
type: NodePort #添加这行
ports:
- port: 443
targetPort: 8443
nodePort: {
{
NODEPORT }} #添加这行
selector:
k8s-app: kubernetes-dashboard
...
[root@ansible-server dashboard]# vim files/admin.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
name: admin-user
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: admin-user
annotations:
rbac.authorization.kubernetes.io/autoupdate: "true"
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: admin-user
namespace: kube-system
[root@ansible-server dashboard]# vim tasks/dashboard_file.yml
- name: copy recommended.yaml file
template:
src: recommended.yaml.j2
dest: /root/recommended.yaml
- name: copy admin.yaml file
copy:
src: admin.yaml
dest: /root/admin.yaml
[root@ansible-server dashboard]# vim tasks/config.yml
- name: Modify the "image:" line
replace:
path: /root/recommended.yaml
regexp: '(.*image:) kubernetesui(/.*)'
replace: '\1 {
{ HARBOR_DOMAIN }}/google_containers\2'
[root@ansible-server dashboard]# vim tasks/download_images.yml
- name: get dashboard version
shell:
chdir: /root
cmd: awk -F "/" '/image:/{print $NF}' recommended.yaml
register: DASHBOARD_VERSION
- name: download dashboard image
shell: |
{
% for i in DASHBOARD_VERSION.stdout_lines %}
docker pull registry.aliyuncs.com/google_containers/{
{
i }}
docker tag registry.aliyuncs.com/google_containers/{
{
i }} {
{
HARBOR_DOMAIN }}/google_containers/{
{
i }}
docker rmi registry.aliyuncs.com/google_containers/{
{
i }}
docker push {
{
HARBOR_DOMAIN }}/google_containers/{
{
i }}
{
% endfor %}
[root@ansible-server dashboard]# vim tasks/install_dashboard.yml
- name: install dashboard
shell:
chdir: /root
cmd: "kubectl --kubeconfig=/etc/kubernetes/admin.conf apply -f recommended.yaml -f admin.yaml"
[root@ansible-server dashboard]# vim tasks/main.yml
- include: dashboard_file.yml
- include: config.yml
- include: download_images.yml
- include: install_dashboard.yml
[root@ansible-server dashboard]# cd ../../
[root@ansible-server ansible]# tree roles/dashboard/
roles/dashboard/
├── files
│ └── admin.yaml
├── tasks
│ ├── config.yml
│ ├── dashboard_file.yml
│ ├── download_images.yml
│ ├── install_dashboard.yml
│ └── main.yml
├── templates
│ └── recommended.yaml.j2
└── vars
└── main.yml
4 directories, 8 files
[root@ansible-server ansible]# vim dashboard_role.yml
---
- hosts: master01
roles:
- role: dashboard
[root@ansible-server ansible]# ansible-playbook dashboard_role.yml
17.2 登录dashboard
https://172.31.3.101:30005
查看token值：
[root@k8s-master01 ~]# kubectl -n kube-system describe secret $(kubectl -n kube-system get secret | grep admin-user | awk '{print $1}')
Name: admin-user-token-4cgk2
Namespace: kube-system
Labels: <none>
Annotations: kubernetes.io/service-account.name: admin-user
kubernetes.io/service-account.uid: 8ea51eb9-5c85-47f8-afef-d087162d6168
Type: kubernetes.io/service-account-token
Data
====
token: eyJhbGciOiJSUzI1NiIsImtpZCI6ImhlemE5UEhFc0w2VWZabzlUV2k5c1RaQzZZbmxzMThmZ05ldkpnbWZGeUkifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlLXN5c3RlbSIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJhZG1pbi11c2VyLXRva2VuLTRjZ2syIiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9zZXJ2aWNlLWFjY291bnQubmFtZSI6ImFkbWluLXVzZXIiLCJrdWJlcm5ldGVzLmlvL3NlcnZpY2VhY2NvdW50L3NlcnZpY2UtYWNjb3VudC51aWQiOiI4ZWE1MWViOS01Yzg1LTQ3ZjgtYWZlZi1kMDg3MTYyZDYxNjgiLCJzdWIiOiJzeXN0ZW06c2VydmljZWFjY291bnQ6a3ViZS1zeXN0ZW06YWRtaW4tdXNlciJ9.YQVpRA-laaOkOPKnKcHRuOsTj7bNiu-1woJlOC-OWu6mrwOvHGnxC7ru5ugwXQxYDbJXgVX3CzQDbZ1j_6RI4SdvC2H28E2GNtUxVLfKaRMBIiQ1aWv6OmYlQMINqfjd6ZR7m9gwO0iLKkMSrwxZw19ydE0ZlymkImeboSjST0z4nXZvSsRcuZjR52mOLru75E3bYCUiPWAypRRI3z0ZHl_JZ9Lurq3jWlxD_ooYQ17_qVcK_ymc3FxkiGQ9NcMPo3WdQEa-YVOQa7K1_SWMkRBYnOEB-NNvi9SQerWmAglndd9DsBGB3n63BlI05gtfUiH0lUBuj7FIyP7tYYMPdA
ca.crt: 1066 bytes
namespace: 11 bytes
18.一些必须的配置更改
将Kube-proxy改为ipvs模式，因为在初始化集群的时候注释了ipvs配置，所以需要自行修改一下：
在master01节点执行
[root@k8s-master01 ~]# curl 127.0.0.1:10249/proxyMode
iptables
[root@k8s-master01 ~]# kubectl edit cm kube-proxy -n kube-system
mode: "ipvs"
更新Kube-Proxy的Pod：
[root@k8s-master01 ~]# kubectl patch daemonset kube-proxy -p "{\"spec\":{\"template\":{\"metadata\":{\"annotations\":{\"date\":\"`date +'%s'`\"}}}}}" -n kube-system
daemonset.apps/kube-proxy patched
验证Kube-Proxy模式
[root@k8s-master01 ~]# curl 127.0.0.1:10249/proxyMode
ipvs
[root@k8s-master01 ~]# ipvsadm -ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 172.17.0.1:30005 rr
-> 192.169.111.130:8443 Masq 1 0 0
TCP 172.31.3.101:30005 rr
-> 192.169.111.130:8443 Masq 1 0 0
TCP 192.162.55.64:30005 rr
-> 192.169.111.130:8443 Masq 1 0 0
TCP 10.96.0.1:443 rr
-> 172.31.3.101:6443 Masq 1 0 0
-> 172.31.3.102:6443 Masq 1 0 0
-> 172.31.3.103:6443 Masq 1 0 0
TCP 10.96.0.10:53 rr
-> 192.167.195.129:53 Masq 1 0 0
-> 192.169.111.129:53 Masq 1 0 0
TCP 10.96.0.10:9153 rr
-> 192.167.195.129:9153 Masq 1 0 0
-> 192.169.111.129:9153 Masq 1 0 0
TCP 10.99.1.2:8000 rr
-> 192.167.195.130:8000 Masq 1 0 0
TCP 10.101.227.108:443 rr
-> 192.169.111.130:8443 Masq 1 0 0
TCP 10.109.223.212:443 rr
-> 192.170.21.193:4443 Masq 1 0 0
TCP 127.0.0.1:30005 rr
-> 192.169.111.130:8443 Masq 1 0 0
UDP 10.96.0.10:53 rr
-> 192.167.195.129:53 Masq 1 0 0
-> 192.169.111.129:53 Masq 1 0 0