Installation binaire de k8s-01. Initialisation du serveur
La version k8s est: v1.15.6
environnement de laboratoire
C'est le plus simple ici. Un maître, un nœud, un etcd Pas de haute disponibilité
Tous les répertoires d'installation cette fois-ci sont sous / data
192.168.100.59 master etcd
192.168.100.60 node
Minimisez l'installation de Centos7
Installez directement la dernière image minimale centos7
[root@master ~]# uname -a
Linux master 3.10.0-1062.el7.x86_64 #1 SMP Wed Aug 7 18:08:02 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Points d'optimisation de base
# 关闭 防火墙
systemctl stop firewalld
systemctl disable firewalld
# 关闭 SeLinux
setenforce 0
sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
# 关闭 swap
swapoff -a
yes | cp /etc/fstab /etc/fstab_bak
cat /etc/fstab_bak |grep -v swap > /etc/fstab
# yum epel源
yum install wget -y
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
yum clean all
yum makecache
# 安装必备包
yum install -y vim wget lrzsz tree lsof rsync zip net-tools telnet
# 时间同步 （我这装机时就默认开启了）
#yum -y install chrony
#systemctl start chronyd
#systemctl enable chronyd
# 配置 limits
cat >> /etc/security/limits.conf << EOF
* soft nofile 65535
* hard nofile 65535
* soft nproc 65535
* hard nproc 65535
EOF
# 修改 /etc/sysctl.conf
cat << EOF > /etc/sysctl.conf
vm.swappiness = 0
net.ipv4.neigh.default.gc_stale_time=120
net.ipv4.conf.all.rp_filter=0
net.ipv4.conf.default.rp_filter=0
net.ipv4.conf.default.arp_announce = 2
net.ipv4.conf.lo.arp_announce=2
net.ipv4.conf.all.arp_announce=2
net.ipv4.tcp_max_tw_buckets = 5000
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
kernel.sysrq=1
net.ipv4.ip_forward = 1
EOF
sysctl -p