k8s--docker安装

在主机与运维主机上：21、22、200 三台都要部署安装

1.下载镜像

[root@hdss-1-22 ~]#yum clean all
[root@hdss-1-22 ~]# curl -fsSL https://get.docker.com|bash -s docker --mirror Aliyun
# Executing docker install script, commit: 3d8fe77c2c46c5b7571f94b42793905e5b3e42e4
+ sh -c 'yum install -y -q yum-utils'
Package yum-utils-1.1.31-54.el7_8.noarch already installed and latest version
+ sh -c 'yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo'
Loaded plugins: fastestmirror, langpacks
adding repo from: https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
grabbing file https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
+ '[' stable '!=' stable ']'
+ sh -c 'yum makecache'
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
epel/x86_64/metalink                                                      | 9.5 kB  00:00:00     
 * base: mirror.bit.edu.cn
 * epel: mirrors.bfsu.edu.cn
 * extras: mirror.bit.edu.cn
 * updates: mirrors.bfsu.edu.cn
base                                                                      | 3.6 kB  00:00:00     
docker-ce-stable                                                          | 3.5 kB  00:00:00     
extras                                                                    | 2.9 kB  00:00:00     
updates                                                                   | 2.9 kB  00:00:00     
(1/11): base/7/x86_64/filelists_db                                        | 7.2 MB  00:00:00     
(2/11): epel/x86_64/prestodelta                                           |  330 B  00:00:00     
(3/11): docker-ce-stable/7/x86_64/filelists_db                            |  24 kB  00:00:01     
(4/11): base/7/x86_64/other_db                                            | 2.6 MB  00:00:01     
(5/11): docker-ce-stable/7/x86_64/other_db                                | 117 kB  00:00:01     
(6/11): extras/7/x86_64/filelists_db                                      | 224 kB  00:00:01     
(7/11): updates/7/x86_64/filelists_db                                     | 3.4 MB  00:00:00     
(8/11): epel/x86_64/other_db                                              | 3.3 MB  00:00:01     
(9/11): epel/x86_64/filelists_db                                          |  12 MB  00:00:03     
(10/11): updates/7/x86_64/other_db                                        | 454 kB  00:00:01     
(11/11): extras/7/x86_64/other_db                                         | 134 kB  00:00:02     
Metadata Cache Created
+ '[' -n '' ']'
+ sh -c 'yum install -y -q docker-ce'
warning: /var/cache/yum/x86_64/7/docker-ce-stable/packages/docker-ce-20.10.3-3.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
Public key for docker-ce-20.10.3-3.el7.x86_64.rpm is not installed
Importing GPG key 0x621E9F35:
 Userid     : "Docker Release (CE rpm) <[email protected]>"
 Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35
 From       : https://download.docker.com/linux/centos/gpg
setsebool:  SELinux is disabled.
If you would like to use Docker as a non-root user, you should now consider
adding your user to the "docker" group with something like:

  sudo usermod -aG docker your-user

Remember that you will have to log out and back in for this to take effect!

WARNING: Adding a user to the "docker" group will grant the ability to run
         containers which can be used to obtain root privileges on the
         docker host.
         Refer to https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface
         for more information.
[root@hdss-1-22 ~]# 

2.编辑daemon.json文件

[root@hdss-1-200 ~]#  mkdir -p /etc/docker
[root@hdss-1-200 ~]# vi /etc/docker/daemon.json
{
  "graph": "/data/docker",
  "storage-driver": "overlay2",
  "insecure-registries": ["registry.access.redhat.com","quay.io","harbor.od.com"],
  "registry-mirrors": ["https://q2gr04ke.mirror.aliyuncs.com"],
  "bip": "172.7.200.1/24",			
  "exec-opts": ["native.cgroupdriver=systemd"],
  "live-restore": true
}

3.创建目录

[root@hdss-1-200 ~]# mkdir -p /data/docker

4.启动docker并设置开机自启

[root@hdss-1-21 ~]#  systemctl start docker
[root@hdss-1-21 ~]#  systemctl enable docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.

5.查看容器是否启动

[root@hdss-1-22 ~]# docker version
Client: Docker Engine - Community
 Version:           20.10.3
 API version:       1.41
 Go version:        go1.13.15
 Git commit:        48d30b5
 Built:             Fri Jan 29 14:34:14 2021
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          20.10.3
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.13.15
  Git commit:       46229ca
  Built:            Fri Jan 29 14:32:37 2021
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.4.3
  GitCommit:        269548fa27e0089a8b8278fc4fc781d7f65a939b
 runc:
  Version:          1.0.0-rc92
  GitCommit:        ff819c7e9184c13b7c2607fe6c30ae19403a7aff
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0
[root@hdss-1-22 ~]# docker ps
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES
[root@hdss-1-22 ~]#