利用ansible做线上的简单更新发布

kyjh

说明：
系统为CentOS6.5
manager 192.168.10.1
web1 192.168.10.2
web2 192.168.10.3
安装ansible

wget http://mirrors.zju.edu.cn/epel/6 ... ease-6-8.noarch.rpm
rpm -ivh epel-release-6-8.noarch.rpm
#双机互信
[iyunv@manager ~]# ssh-keygen -t rsa -f ~/.ssh/id_rsa -P ''
for i in web1 web2;do ssh-copy-id -i root@$i;done

yum install ansible
# ansible --version
ansible 1.8.2


ansible命令
ansible           ansible-galaxy    ansible-pull      ansible-vault     
ansible-doc       ansible-playbook  ansible-shell
# ansible-doc -l  查看modules
# ansible-doc ping 查看ping模块的使用方法
> PING
  A trivial test module, this module always returns `pong' on
  successful contact. It does not make sense in playbooks, but it is
  useful from `/usr/bin/ansible'
# Test 'webservers' status
#测试

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[iyunv@manager ~]# ansible web1 -m ping [WARNING]: The version of gmp you have installed has a known issue regarding timing vulnerabilities when used with pycrypto. If possible, you should update it (i.e. yum update gmp). 192.168.10.2 | success >> {     "changed": false,     "ping": "pong" }

#下面开始
cd /etc/ansible/
vim hosts #注释所有，添加以下
[web1]
192.168.10.2
[web2]
192.168.10.3
#测试几个常用的命令

ansible web1 -a uptime
ansible web1 -m yum -a "name=dstat state=latest"
ansible web1 -m raw -a "rpm -qa|grep dstat"
ansible web1 -m shell -a "service mysqld restart"
ansible web1 -m service -a "name=mysqld state=stopped"

#下面只是一个简单的例子，或者说是思路，具体的根据公司自己情况做改动

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[iyunv@manager ~]# cat publish.sh #!/bin/bash # echo "please choose server web1 or web2: " echo "1:web1    2:web2   3:QUIT" read -p "\>" SERVER case $SERVER in 1) read -p "PATH:" DIR NEWDIR=`echo $DIR|sed 's/var/home/'`   #发布机的目录是/home/www而不是/var/www，根据自己环境 ansible web1 -a "cp $NEWDIR /backup"   #做一个备份 ansible web1 -m copy -a "src=$DIR dest=$NEWDIR" ;; 2) read -p "PATH:" DIR ansible web2 -a "cp $NEWDIR /backup" ansible web2 -m copy -a "src=$DIR dest=$NEWDIR" ;; 3) exit ;; *) echo "you are wrong" esac