安装前要求
参见官网
使用环境
centos 7.2 , 两台 8c 16g 。
[root@docker01 ~]# uname -r
3.10.0-327.el7.x86_64
[root@docker01 ~]# cat /etc/system-release
CentOS Linux release 7.2.1511 (Core)
设置yum 阿里源
下载 Centos-7.repo ， http://mirrors.aliyun.com/repo/Centos-7.repo 。
替换里面的$release 为7 。
设置yum 代理
在/etc/yum.conf中配置内外代理地址 ：
proxy=http://10.30.127.84:1808
执行yum clean all
yum makecache
设置hostname
编辑 /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
10.30.16.205 node205
10.30.16.206 node206
编辑/etc/sysconfig/network
HOSTNAME=node205
编辑/etc/hostname
node205
关闭防火墙
[root@docker01 ~]# systemctl stop firewalld
[root@docker01 ~]# systemctl disable firewalld
关闭swap
使用 free -h 查看 ,关闭前后 ：
[root@docker02 yum.repos.d]# free -h
total used free shared buff/cache available
Mem: 15G 184M 14G 8.4M 416M 15G
Swap: 8.0G 0B 8.0G
[root@docker01 ~]# swapoff -a
[root@docker01 ~]# free -h
total used free shared buff/cache available
Mem: 15G 179M 14G 8.4M 420M 15G
Swap: 0B 0B 0B
编辑配置文件： /etc/fstab , 注释最后一条
/dev/mapper/centos-root / xfs defaults 0 0
UUID=3edeec3d-1be5-4cf4-9fc3-9141d92baba8 /boot xfs defaults 0 0
#/dev/mapper/centos-swap swap swap defaults 0 0
关闭 SeLinux
vim /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled
检查使用 getenfore
配置ntp
- 安装ntp ， yum install ntp
- 配置/etc/ntp.conf
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
server 10.20.11.10
server 0.centos.pool.ntp.org iburst
- 开机启动 及 同步
[root@docker02 yum.repos.d]# systemctl enable ntpd
Created symlink from /etc/systemd/system/multi-user.target.wants/ntpd.service to /usr/lib/systemd/system/ntpd.service.
[root@docker02 yum.repos.d]# systemctl start ntpd
[root@docker02 yum.repos.d]# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
10.20.11.10 .GPS. 1 u 6 64 1 1.904 8546.08 0.000
[root@docker02 yum.repos.d]#
[root@docker02 yum.repos.d]#
[root@docker02 yum.repos.d]# ntpdate -u 10.20.11.10
20 Jun 20:17:14 ntpdate[12110]: step time server 10.20.11.10 offset 8.545657 sec
安装最新docker ce
见本人docker 安装 ： https://www.jianshu.com/p/cc581897c00c
ulimit
echo "* soft nofile 65536" >> /etc/security/limits.conf
echo "* hard nofile 65536" >> /etc/security/limits.conf
echo "* soft nproc 65536" >> /etc/security/limits.conf
echo "* hard nproc 65536" >> /etc/security/limits.conf
echo "* soft memlock unlimited" >> /etc/security/limits.conf
echo "* hard memlock unlimited" >> /etc/security/limits.conf
安装 命令补全
yuminstallepel-release
yum install -y bash-completion
source /usr/share/bash-completion/bash_completion
source <(kubectl completion bash)
echo "source <(kubectl completion bash)" >> ~/.bashrc
