运维自动化之ansible playbook安装mysql

1.创建mysql的playbook结构

[root@ansible roles]# pwd
/etc/ansible/roles
[root@ansible roles]# mkdir -p mysql_install/{files,handlers,meta,tasks,templates,vars}
[root@ansible roles]# tree mysql_install/
mysql_install/
├── files
├── handlers
├── meta
├── tasks
├── templates
└── vars

2.创建需要用到的vars

[root@ansible roles]# cat /etc/ansible/roles/mysql_install/vars/main.yml
mysql_version: mysql-5.5.37

3.创建远程安装脚本

[root@ansible roles]# cat /etc/ansible/roles/mysql_install/templates/mysql_install.sh
#!/bin/bash
 
DATADIR='/data/mysql/data'
VERSION='{{mysql_version}}'
export LANG=zh_CN.UTF-8
 
#Source function library.
. /etc/init.d/functions
 
#camke install mysql5.5.X
install_mysql(){
        #read -p "please input a password for root: " PASSWD
	PASSWD='ly36843'
        if [ ! -d $DATADIR ];then
                mkdir -p $DATADIR
        fi
        yum install cmake make gcc-c++ bison-devel ncurses-devel -y
        id mysql &>/dev/null
        if [ $? -ne 0 ];then
                useradd mysql -s /sbin/nologin -M
        fi
        #useradd mysql -s /sbin/nologin -M
        #change datadir owner to mysql
        chown -R mysql.mysql $DATADIR
        cd
        #wget http://mirrors.sohu.com/mysql/MySQL-5.5/mysql-5.5.38.tar.gz
        tar xf $VERSION.tar.gz
        cd $VERSION
        cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/$VERSION \
        -DMYSQL_DATADIR=$DATADIR \
        -DMYSQL_UNIX_ADDR=$DATADIR/mysql.sock \
        -DDEFAULT_CHARSET=utf8 \
        -DDEFAULT_COLLATION=utf8_general_ci \
        -DENABLED_LOCAL_INFILE=ON \
        -DWITH_INNOBASE_STORAGE_ENGINE=1 \
        -DWITH_FEDERATED_STORAGE_ENGINE=1 \
        -DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
        -DWITHOUT_EXAMPLE_STORAGE_ENGINE=1 \
        -DWITHOUT_PARTITION_STORAGE_ENGINE=1
        make && make install
        if [ $? -ne 0 ];then
                action "install mysql is failed!"  /bin/false
                exit $?
        fi
        sleep 2
        #link
        ln -s /usr/local/$VERSION/ /usr/local/mysql
        ln -s /usr/local/mysql/bin/* /usr/bin/
        #copy config and start file
        /bin/cp /usr/local/mysql/support-files/my-small.cnf /etc/my.cnf
        cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
        chmod 700 /etc/init.d/mysqld
        #init mysql
        /usr/local/mysql/scripts/mysql_install_db  --basedir=/usr/local/mysql --datadir=$DATADIR --user=mysql
        if [ $? -ne 0 ];then
                action "install mysql is failed!"  /bin/false
                exit $?
        fi
        #check mysql
        /etc/init.d/mysqld start
        if [ $? -ne 0 ];then
                action "mysql start is failed!"  /bin/false
                exit $?
        fi
        chkconfig --add mysqld
        chkconfig mysqld on
        /usr/local/mysql/bin/mysql -e "update mysql.user set password=password('$PASSWD') where host='localhost' and user='root';"
        /usr/local/mysql/bin/mysql -e "update mysql.user set password=password('$PASSWD') where host='127.0.0.1' and user='root';"
        /usr/local/mysql/bin/mysql -e "delete from mysql.user where password='';"
        /usr/local/mysql/bin/mysql -e "flush privileges;"
        #/usr/local/mysql/bin/mysql -e "select version();" >/dev/null 2>&1
        if [ $? -eq 0 ];then
                echo "+---------------------------+"
                echo "+------mysql安装完成--------+"
                echo "+---------------------------+"
        fi
        #/etc/init.d/mysqld stop
}
 
install_mysql

4.创建任务

复制文件

[root@ansible roles]# cat /etc/ansible/roles/mysql_install/tasks/copy.yml 
- name: copy mysql source code to client
  copy: src={{mysql_version}}.tar.gz dest=/root/{{mysql_version}}.tar.gz owner=root group=root
- name: copy mysql install script to client
  template: src=mysql_install.sh dest=/root/mysql_install.sh owner=root group=root mode=0755

解压安装

[root@ansible roles]# cat /etc/ansible/roles/mysql_install/tasks/install.yml
- name: install mysql
  shell: /bin/sh /root/mysql_install.sh

创建包含文件

[root@ansible roles]# cat /etc/ansible/roles/mysql_install/tasks/main.yml
- include: copy.yml
- include: install.yml

最后的playbook结构是

[root@ansible roles]# tree /etc/ansible/roles/mysql_install/
/etc/ansible/roles/mysql_install/
├── files
│   └── mysql-5.5.37.tar.gz
├── handlers
├── meta
├── tasks
│   ├── copy.yml
│   ├── install.yml
│   └── main.yml
├── templates
│   └── mysql_install.sh
└── vars
    └── main.yml

5.创建mysql的playbook配置文件

[root@ansible ~]# cat /etc/ansible/mysql_server_install.yml
- hosts: mysql
  remote_user: root
  gather_facts: False
  roles:
    - mysql_install