简介

   通过ansible-playbook批量编译安装mysql-5.6.22并进行初始化,后续我们只需要启动数据库进行建库即可。

ansible-playbook配置思路:
1.通过vars中的main.yml配置变量,主要为源码存放目录及安装目录
2.通过tasks中的copy.yml将源码文件传输到异地服务器上源码存放目录
3.通过tasks中的install.yml调用模板mysql_install.sh,将mysql安装到变量中定义的安装目录
4.通过tasks中的main.yml调用copy模块和install模块
5.通过mysql.yml调用剧本(playbook):mysql_install

playbook的目录结构

[root@test ansible]# cd /etc/ansible/
[root@test ansible]# mkdir -p roles/mysql_install/{files,handlers,meta,tasks,templates,vars}
[root@test ansible]# tree /etc/ansible
├── ansible.cfg
├── hosts
├── mysql.yml
├── roles
│   └── mysql_install
│       ├── files
│       │   ├── my.cnf
│       │   └── mysql-5.6.22.tar.gz
│       ├── handlers
│       ├── meta
│       ├── tasks
│       │   ├── copy.yml
│       │   ├── install.yml
│       │   └── main.yml
│       ├── templates
│       │   └── mysql_install.sh
│       └── vars
│           └── main.yml

说明:
files:存放需要同步到异地服务器的源码文件及配置文件;
handlers:当资源发生变化时需要进行的操作,若没有此目录可以不建或为空;
meta:角色定义可留空;
tasks:mysql安装过程成需要进行的执行的任务;
templates:用于执行mysql安装的模板文件,一般为脚本;
vars:本次安装定义的变量

具体操作

1.创建mysql角色文件,用于调用mysql_install

[root@test  ansible]# vim mysql.yml
- hosts: test
  remote_user: root
  gather_facts: False
  roles:
    - mysql_install

2.创建变量文件

#创建变量
[root@test ansible]# cd /etc/ansible/roles/mysql_install/vars
vim mail.yml
mysql_version: mysql-5.6.22
source_dir: /home/ap/src
install_dir: /home/ap/mysql
data_dir: /home/ap/mysql/data

3.创建任务文件

[root@test ansible]# cd /etc/ansible/roles/mysql_install/tasks
[root@test ansible]# vim copy.yml
#复制源码至目标服务器
- name: copy mysql source code to client
  copy: src={{mysql_version}}.tar.gz dest={{source_dir}} owner=root group=root
#复制配置文件至目标服务器
- name: copy my.cnf to client
  copy: src=my.cnf dest=/etc/my.cnf owner=root group=root
#复制模板文件至目标服务器
- name: copy mysql install script to client
  template: src=mysql_install.sh dest={{source_dir}} owner=root group=root mode=0775
[root@test ansible]# vim install.yml
#执行模板文件进行安装
- name: install mysql
  shell: bash {{source_dir}}/mysql_install.sh
[root@test ansible]# vim main.yml
#引用copy、install模块
- include: copy.yml
- include: install.yml

注意:
a.copy如果复制目录,需要加上递归参数,recurse;
b.copy如果复制目录,没有目录将会在目标服务器上创建;
c.copy如果复制文件到目标服务器的某一个目录下,需要在dest参数上加上/home/ap/src/,而不是/home/ap/src,否则ansible将会把文件复制为src,而不是放在src目录下。

4.编写模板脚本

#!/bin/bash
INSTALL_DIR={{install_dir}}
DATADIR={{data_dir}}
INNODB_DIR=$DATADIR/innodb
VERSION='{{mysql_version}}'
SOURCE_DIR={{source_dir}}
#export LANG=zh_CN.UTF-8

#Source function library.
. /etc/init.d/functions

#camke install mysql5.6.X
install_mysql(){
        #read -p "please input a password for root: " PASSWD
    PASSWD='core2017'
        if [ ! -d $DATADIR ];then
                mkdir -p $DATADIR
        fi
        if [ ! -d $INNODB_DIR ];then
                mkdir -p $INNODB_DIR
        fi
        yum install cmake make gcc gcc-c++  ncurses-devel bison-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 $SOURCE_DIR
        tar xf $VERSION.tar.gz
        cd $VERSION
        cmake . -DCMAKE_INSTALL_PREFIX=$INSTALL_DIR \
        -DMYSQL_DATADIR=$DATADIR \
        -DMYSQL_UNIX_ADDR=/tmp/mysql.sock \
        -DDEFAULT_CHARSET=utf8 \
        -DDEFAULT_COLLATION=utf8_general_ci \
        -DWITH_INNOBASE_STORAGE_ENGINE=1 \
        -DWITH_ARCHIVE_STORAGE_ENGINE=1 \
        -DWITH_FEDERATED_STORAGE_ENGINE=1 \
        -DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
        -DWITH_PERFSCHEMA_STORAGE_ENGINE=1 \
        -DWITH_PARTITION_STORAGE_ENGINE=1 \
        -DEXTRA_CHARSETS=all \
        -DMYSQL_TCP_PORT=3306

        make && make install
        if [ $? -ne 0 ];then
                action "install mysql is failed!"  /bin/false
                exit $?
        fi
        sleep 2

        #copy config and start file
        #/bin/cp /usr/local/mysql/support-files/my-small.cnf /etc/my.cnf
        #modify /etc/my.cnf
        sed -i "s:mysqld =:mysqld = $INSTALL_DIR/bin/mysqld_safe:g" /etc/my.cnf
        sed -i "s:mysqladmin =:mysqladmin = $INSTALL_DIR/bin/mysqladmin:g" /etc/my.cnf
        sed -i "s:datadir =:datadir = $DATADIR:g" /etc/my.cnf
        sed -i "s:slow_query_log_file=:slow_query_log_file=$DATADIR:g" /etc/my.cnf
        sed -i "s:log-error=:log-error=$DATADIR:g" /etc/my.cnf
        sed -i "s:innodb_data_home_dir =:innodb_data_home_dir = $INNODB_DIR:g" /etc/my.cnf
        sed -i "s:innodb_log_group_home_dir =:innodb_log_group_home_dir = $INNODB_DIR:g" /etc/my.cnf
        cp $INSTALL_DIR/support-files/mysql.server /etc/init.d/mysqld
        chmod 700 /etc/init.d/mysqld
        #init mysql
        $INSTALL_DIR/scripts/mysql_install_db  --basedir=$INSTALL_DIR --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
        $INSTALL_DIR/bin/mysql -e "update mysql.user set password=password('$PASSWD') where host='localhost' and user='root';"
        $INSTALL_DIR/bin/mysql -e "update mysql.user set password=password('$PASSWD') where host='127.0.0.1' and user='root';"
        #$INSTALL_DIR/bin/mysql -e "delete from mysql.user where password='';"
        $INSTALL_DIR/bin/mysql -e "flush privileges;"
        #/usr/local/mysql/bin/mysql -e "select version();" >/dev/null 2>&1
        if [ $? -eq 0 ];then
                echo "+---------------------------+"
                echo "+------mysql安装完成--------+"
                echo "+---------------------------+"
        fi
        #/etc/init.d/mysqld stop
        #add path
        echo "export PATH=$PATH:$INSTALL_DIR/bin" >> /etc/profile
        source /etc/profile
}

install_mysql

此脚本除了编译安装mysql,还初始化mysql数据库,对已经参数留空的配置文件my.cnf进行相应的修改,设置密码并启动数据库等系列操作。

5.定制安装
后续可根据实际情况,通过修改vars/main.yml中的相关参数,进行定制安装。

执行playbook

#检查文件
[root@test ansible]# ansible-playbook -C mysql.yml
#执行playbook
[root@test ansible]# ansible-playbook mysql.yml