playbooks 是一种简单的配置管理系统与多机器部署系统的基础。与现有的其他系统有不同之处,且非常适合于复杂应用的批量部署
这里讲述的是使用ansible-playbooks的roles安装Mysql应用
结构目录 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 [root@Ansible ~]# tree /etc/ansible/ /etc/ansible/ ├── ansible.cfg ├── hosts ├── roles │ └── yum_mysql │ ├── files │ │ └── yum.repo │ ├── handlers │ │ └── main.yml │ ├── tasks │ │ └── main.yml │ ├── templates │ │ └── my.cnf.j2 │ └── vars │ └── main.yml └── site.yml 7 directories, 8 files [root@Ansible ~]#
Ansible之安装mysql 环境：
1 2 3 4 5 6 7 8 [root@Ansible ~]# cd /etc/ansible/ [root@Ansible ansible]# cat site.yml - hosts: test_hosts user: root roles: - yum_mysql [root@Ansible ansible]#
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 [root@Ansible ansible]# cat roles/yum_mysql/tasks/main.yml - name: Install libselinux-python package yum: name=libselinux-python state=installed - name: Check whether yum.repo file exist shell: ls /etc/yum.repos.d/yum.repo register: result ignore_errors: True - name: Copy yum.repo file copy: src=yum.repo dest=/etc/yum.repos.d/ mode=0644 owner=root group=root when: result|failed - name: Rebuild the yum cache shell: yum clean all && yum makecache when: result|failed - name: Install Mysql Packages yum: name={{item.name}} state={{item.state|default("installed" )}} with_items: - name: "mysql*" state: "absent" - name: "mysql.x86_64" - name: "mysql-devel.x86_64" - name: "mysql-server.x86_64" - name: Configure Mysql file template: src="templates/my.cnf.j2" dest="/etc/my.cnf" owner=root group=root mode=0644 notify: restart mysql [root@Ansible ansible]#
1 2 3 4 5 6 7 8 [root@Ansible ansible]# cat roles/yum_mysql/handlers/main.yml - name: restart mysql service: name=mysqld state=restarted enabled=yes notify: "Set the mysql database password" - name: Set the mysql database password shell: /usr/bin/mysqladmin -u root password '123456' [root@Ansible ansible]#
1 2 3 4 5 6 7 8 9 10 11 12 [root@Ansible ansible]# cat roles/yum_mysql/vars/main.yml data_dir: /var/lib/mysql socket_dir: /var/lib/mysql/mysql.sock mysql_user: mysql log_error_dir: /var/log/mysqld.log pid_dir: /var/run/mysqld/mysqld.pid port: 3306 log_bin: mysql_bin binlog_format: mixed server_id: 1 [root@Ansible ansible]#
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 [root@Ansible ~]# ansible-playbook /etc/ansible/site.yml PLAY [test_hosts] ************************************************************** TASK [setup] ******************************************************************* ok: [192.168.31.110] TASK [yum_mysql : Install libselinux-python package] *************************** changed: [192.168.31.110] TASK [yum_mysql : Check whether yum.repo file exist] *************************** fatal: [192.168.31.110]: FAILED! => {"changed" : true , "cmd" : "ls /etc/yum.repos.d/yum.repo" , "delta" : "0:00:00.004198" , "end" : "2017-03-19 21:22:56.861926" , "failed" : true , "rc" : 2, "start" : "2017-03-19 21:22:56.857728" , "stderr" : "ls: cannot access /etc/yum.repos.d/yum.repo: No such file or directory" , "stdout" : "" , "stdout_lines" : [], "warnings" : []} ...ignoring TASK [yum_mysql : Copy yum.repo file] ****************************************** changed: [192.168.31.110] TASK [yum_mysql : Rebuild the yum cache] *************************************** changed: [192.168.31.110] [WARNING]: Consider using yum module rather than running yum TASK [yum_mysql : Install Mysql Packages] ************************************** changed: [192.168.31.110] => (item={u'state' : u'absent' , u'name' : u'mysql*' }) changed: [192.168.31.110] => (item={u'name' : u'mysql.x86_64' }) changed: [192.168.31.110] => (item={u'name' : u'mysql-devel.x86_64' }) changed: [192.168.31.110] => (item={u'name' : u'mysql-server.x86_64' }) TASK [yum_mysql : Configure Mysql file] **************************************** changed: [192.168.31.110] RUNNING HANDLER [yum_mysql : restart mysql] ************************************ changed: [192.168.31.110] RUNNING HANDLER [yum_mysql : Set the mysql database password] ****************** changed: [192.168.31.110] PLAY RECAP ********************************************************************* 192.168.31.110 : ok=9 changed=8 unreachable=0 failed=0 [root@Ansible ~]#
1 2 3 4 5 [root@Ansible ~]# ansible test_hosts -m shell -a 'netstat -tunlp | grep 3306' 192.168.31.110 | SUCCESS | rc=0 >> tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 2086/mysqld [root@Ansible ~]#
附件：ansible_yum_install_mysql.tar.gz
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