利用ansible做线上的简单更新发布
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/x86_64/epel-release-6-8.noarch.rpm
rpm -ivh epel-release-6-8.noarch.rpm
#双机互信
# 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-playbookansible-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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# ansible web1 -m ping
: 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
192.168.10.2
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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# 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
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