1. 简介
2. 环境
2.1. OS: CentOS Linux release 7.5.1804 (Core)
2.2. Ansible: 2.6.2-1.el7
2.3. docker:
2.4. kubernetes:
2.5.
3. 准备
3.1. ansible，节点太多了，安装一个ansible统一执行命令吧
yum -y install ansible
看一下配置文件
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~]# cat /etc/ansible/hosts [all] service ansible_host=10.210.55.220 hostname=centos-0 master1 ansible_host=10.210.55.221 hostname=centos-master-1 master2 ansible_host=10.210.55.222 hostname=centos-master-2 master3 ansible_host=10.210.55.223 hostname=centos-master-3 node1 ansible_host=10.210.55.226 hostname=centos-node-1 node2 ansible_host=10.210.55.227 hostname=centos-node-2 node3 ansible_host=10.210.55.228 hostname=centos-node-3 node4 ansible_host=10.210.55.229 hostname=centos-node-4 [master] master1 master2 master3 [etcd] master1 master2 master3 [worker] node1 node2 node3 node4
看一下hosts文件
~]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 10.210.55.220 centos-0 10.210.55.220 centos-0 centos-0.eric.com 10.210.55.221 centos-master-1 centos-master-1.eric.com 10.210.55.222 centos-master-2 centos-master-2.eric.com 10.210.55.223 centos-master-3 centos-master-3.eric.com 10.210.55.226 centos-node-1 centos-node-1.eric.com 10.210.55.227 centos-node-2 centos-node-2.eric.com 10.210.55.228 centos-node-3 centos-node-3.eric.com 10.210.55.229 centos-node-4 centos-node-4.eric.com
最后配置一下root账户SSH免密登录，试一下
~]# ansible all -m command -a hostname service | SUCCESS | rc=0 >> centos-0 node4 | SUCCESS | rc=0 >> centos-node-4 node3 | SUCCESS | rc=0 >> centos-node-3 node2 | SUCCESS | rc=0 >> centos-node-2 node1 | SUCCESS | rc=0 >> centos-node-1 master2 | SUCCESS | rc=0 >> centos-master-2 master3 | SUCCESS | rc=0 >> centos-master-3 master1 | SUCCESS | rc=0 >> centos-master-1
3.2. 配置yum源，我直接使用的是阿里的源
rm -rf /etc/yum.repo.d/* wget http://mirrors.aliyun.com/repo/Centos-7.repo wget http://mirrors.aliyun.com/repo/epel-7.repo wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo rpm --import https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg rpm --import https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg #kubernetes repo需要手写 ]# cat kubernetes.repo [kubernetes] name = kubernetes@aliyun baseurl = https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/ gpgcheck = 1 gpgkey = https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg enabled = 1 #验证一下 ]# yum repolist ]# yum makecache