Linux之Ansible安装多实例mariadb
Ansible安装多实例mariadb10.2.23
堡垒机配置
root家目录下放置mariadb二进制包
[Mon Apr 29 19:52
root@ansible-centos7 ~]# ls
-rw-r--r-- 1 root root 456950538 Apr 26 08:16 mariadb-10.2.23-linux-x86_64.tar.gz在/data目录下创建ansible目录，内部创建roles文件夹
[Mon Apr 29 20:05
root@ansible-centos7 /data/ansible] # ll
drwxr-xr-x 5 root root 4096 Apr 29 09:40 roles在roles目录下创建需要用到的目录
[Mon Apr 29 19:54
root@ansible-centos7 /data/ansible/roles]# mkdir mariadb/{tasks,templates,vars} -pv查看当前目录结构
[Mon Apr 29 20:05
root@ansible-centos7 /data/ansible/roles]# tree mariadb/
mariadb/
|-- tasks
|-- templates
|-- vars创建数据库管理账户组.yml：
[Mon Apr 29 20:16
root@ansible-centos7 /data/ansible/roles]# vim mariadb/tasks/group.yml
- name: create group group: name=mysql system=yes gid=336创建数据库管理账户.yml：
[Mon Apr 29 20:06
root@ansible-centos7 /data/ansible/roles]# vim mariadb/tasks/user.yml
- name: create user
user: name=mysql uid=336 system=yes group=mysql home=/data/mysql create_home=no创建多实例所需存储目录.yml：
[Mon Apr 29 20:17
root@ansible-centos7 /data/ansible/roles]# vim mariadb/tasks/mkdir.yml
- name: mkdir /data/mysql/...
shell: mkdir -pv /data/mysql/{3306,3307,3308}/{data,etc,socket,log,bin,pid}修改存储目录权限.yml：
[Mon Apr 29 20:20
root@ansible-centos7 /data/ansible/roles]# vim mariadb/tasks/chown.yml
- name: change /data/mysql owner
shell: chown -R mysql.mysql /data/mysql 解压mariadb包到被控端主机/usr/local/下.yml：
[Mon Apr 29 20:20
root@ansible-centos7 /data/ansible/roles]# vim mariadb/tasks/unarchive.yml
- name: unarchive mariadb.tar
unarchive: src=/root/{{package}} dest=/usr/local/
- name: create link
file: src=/usr/local/{{package1}} path=/usr/local/mysql state=link生成数据库内容.yml：
[Mon Apr 29 20:27
root@ansible-centos7 /data/ansible/roles]# vim mariadb/tasks/scp.yml
- name: ctreate the database
shell: cd /usr/local/mysql/; ./scripts/mysql_install_db --datadir=/data/mysql/{{item}}/data --user=mysql
with_items:
- 3306
- 3307
- 3308拷贝my.cnf.j2生成my.cnf配置文件.yml：
[Mon Apr 29 20:30
root@ansible-centos7 /data/ansible/roles]# vim mariadb/tasks/config.yml
- name: copy config1
template: src=my.cnf.j2 dest=/data/mysql/{{port1}}/etc/my.cnf
- name: copy config2
template: src=my1.cnf.j2 dest=/data/mysql/{{port2}}/etc/my.cnf
- name: copy config3
template: src=my2.cnf.j2 dest=/data/mysql/{{port3}}/etc/my.cnf拷贝模板文件生成启动服务文件.yml：
[Mon Apr 29 20:31
root@ansible-centos7 /data/ansible/roles]# vim mariadb/tasks/mysqld.yml
- name: copy service1
template: src=mysqld.j2 dest=/data/mysql/{{port1}}/bin/mysqld mode=754
- name: copy service2
template: src=mysqld1.j2 dest=/data/mysql/{{port2}}/bin/mysqld1 mode=754
- name: copy service3
template: src=mysqld2.j2 dest=/data/mysql/{{port3}}/bin/mysqld2 mode=754写主文件.yml：
[Mon Apr 29 20:31
root@ansible-centos7 /data/ansible/roles]# vim mariadb/tasks/main.yml
- include: group.yml
- include: user.yml
- include: mkdir.yml
- include: unarchive.yml
- include: scp.yml
- include: chown.yml
- include: config.yml
- include: mysqld.yml拷贝需要用到的模板文件
[Mon Apr 29 20:37
root@ansible-centos7 /data/ansible/roles]# cp /etc/my.cnf mariadb/templates/my.cnf.j2修改my.cnf.j2模板文件,此文件需要拷贝复制三份在当前目录，命名为my1.cnf.j2,my2,cnf.j2,分别对应变量{{port1}}，{{port2}}，{{port3}}
my.cnf.j2
[Mon Apr 29 20:38
root@ansible-centos7 /data/ansible/roles]# vim mariadb/templates/my.cnf.j2
[mysqld]
port={{port1}}
datadir=/data/mysql/{{port1}}/data
socket=/data/mysql/{{port1}}/socket/mysql.sock
[mysqld_safe]
log-error=/data/mysql/{{port1}}/log/mariadb.log
pid-file=/data/mysql/{{port1}}/pid/mariadb.pid
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
#
# include all files from the config directory
#
!includedir /etc/my.cnf.dmy1.cnf.j2
[Mon Apr 29 20:43
root@ansible-centos7 /data/ansible/roles]# vim mariadb/templates/my1.cnf.j2
[mysqld]
port={{port2}}
datadir=/data/mysql/{{port2}}/data
socket=/data/mysql/{{port2}}/socket/mysql.sock
[mysqld_safe]
log-error=/data/mysql/{{port2}}/log/mariadb.log
pid-file=/data/mysql/{{port2}}/pid/mariadb.pid
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
#
# include all files from the config directory
#
!includedir /etc/my.cnf.dmy2.cnf.j2
[Mon Apr 29 20:41
root@ansible-centos7 /data/ansible/roles]# vim mariadb/templates/my2.cnf.j2
[mysqld]
port={{port3}}
datadir=/data/mysql/{{port3}}/data
socket=/data/mysql/{{port3}}/socket/mysql.sock
[mysqld_safe]
log-error=/data/mysql/{{port3}}/log/mariadb.log
pid-file=/data/mysql/{{port3}}/pid/mariadb.pid
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
#
# include all files from the config directory
#
!includedir /etc/my.cnf.d服务启动脚本，此脚本也要复制3份放到templates目录内，命名为mysqld.j2,mysqld1.j2,mysqld2.j2：内部需要更改的有端口port，变量自动生成
[Mon Apr 29 20:47
root@ansible-centos7 /data/ansible/roles]# vim mariadb/templates/mysqld.j2
#!/bin/bash
port={{port1}}
mysql_user="root"
mysql_pwd=""
cmd_path="/usr/local/mysql/bin"
mysql_basedir="/data/mysql"
mysql_sock="${mysql_basedir}/${port}/socket/mysql.sock"
function_start_mysql()
{
if [ ! -e "$mysql_sock" ];then
printf "Starting MySQL...\n"
${cmd_path}/mysqld_safe --defaults-file=${mysql_basedir}/${port}/etc/my.cnf &> /dev/null &
else
printf "MySQL is running...\n"
exit
fi
}
function_stop_mysql()
{
if [ ! -e "$mysql_sock" ];then
printf "MySQL is stopped...\n"
exit
else
printf "Stoping MySQL...\n"
${cmd_path}/mysqladmin -u ${mysql_user} -p${mysql_pwd} -S ${mysql_sock} shutdown
fi
}
function_restart_mysql()
{
printf "Restarting MySQL...\n"
function_stop_mysql
sleep 2
function_start_mysql
}
case $1 in
start)
function_start_mysql
;;
stop)
function_stop_mysql
;;
restart)
function_restart_mysql
;;
*)
printf "Usage: ${mysql_basedir}/${port}/bin/mysqld {start|stop|restart}\n"
esac 上述用到的变量在vars目录内定义
[Mon Apr 29 20:43
root@ansible-centos7 /data/ansible/roles]# vim mariadb/vars/main.yml
package: mariadb-10.2.23-linux-x86_64.tar.gz
package1: mariadb-10.2.23-linux-x86_64
port1: 3306
port2: 3307
port3: 3308在anslible目录下创建主脚本mariadb.yml
[Mon Apr 29 20:52
root@ansible-centos7 /data/ansible]# vim mariadb.yml
---
- hosts: 172.16.36.112
remote_user: root
roles:
- role: mariadb最后的目录结构：
|-- mariadb
| |-- tasks
| | |-- chown.yml
| | |-- config.yml
| | |-- group.yml
| | |-- main.yml
| | |-- mkdir.yml
| | |-- mysqld.yml
| | |-- scp.yml
| | |-- unarchive.yml
| | `-- user.yml
| |-- templates
| | |-- my1.cnf.j2
| | |-- my2.cnf.j2
| | |-- my.cnf.j2
| | |-- mysqld1.j2
| | |-- mysqld2.j2
| | `-- mysqld.j2
| `-- vars
| `-- main.yml脚本跑完之后
ansbile 172.16.36.112 -m shell -a 'echo 'PATH=/usr/local/mysql/bin:$PATH' > /etc/profile.d/mariadb.sh;source /etc/profile.d/mariadb.sh'
由于是使用多实例生成的数据库，启动可能稍有不便
在172.16.36.112主机上使用下列命令启动，ss -tnlp 可以看到三个端口启动成功和对应的mysqld服务
# bash /data/mysql/3306/bin/mysqld start
# bash /data/mysql/3307/bin/mysqld1 start
# bash /data/mysql/3308/bin/mysqld2 start
[root@node2-centos7 ~]# ss -tnlp
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 *:111 *:* users:(("rpcbind",pid=6100,fd=4),("systemd",pid=1,fd=81))
LISTEN 0 128 *:22 *:* users:(("sshd",pid=6456,fd=3))
LISTEN 0 100 127.0.0.1:25 *:* users:(("master",pid=6618,fd=13))
LISTEN 0 80 :::3306 :::* users:(("mysqld",pid=10667,fd=20))
LISTEN 0 80 :::3307 :::* users:(("mysqld",pid=10792,fd=20))
LISTEN 0 80 :::3308 :::* users:(("mysqld",pid=10907,fd=20))
LISTEN 0 128 :::111 :::* users:(("rpcbind",pid=6100,fd=6),("systemd",pid=1,fd=83))
LISTEN 0 128 :::22 :::* users:(("sshd",pid=6456,fd=4))
LISTEN 0 100 ::1:25 :::* users:(("master",pid=6618,fd=14))转载于:https://blog.51cto.com/5033330/2386876