第十七章 Ansibleplaybook模板部署wordpress

一、配置主机清单

[root@m01 ~]# cat /etc/ansible/hosts 
[web_group]
web01 ansible_ssh_pass='1'
web02 ansible_ssh_pass='1'
#web03 ansible_ssh_pass='1'

[slb]
lb01 ansible_ssh_pass='1'
lb02 ansible_ssh_pass='1'

[db_group]
db01 ansible_ssh_pass='1'
db03 ansible_ssh_pass='1'

[nfs_server]
nfs ansible_ssh_pass='1'

[backup_server]
backup ansible_ssh_pass='1'

[nginx_group:children]
web_group
slb

[nfs_group:children]
nfs_server
web_group

[nginx_group:vars]
web=host_vars

二、配置keepalived剧本

[root@m01 ~]# cat keepalived.yml 
- hosts: slb
  vars_files: upstream_vars.yml
  tasks:
    - name: Install keepalived
      yum:
        name: keepalived
        state: present

    - name: Config keepalive
      template:
        src: /root/conf/keepalived.j2
        dest: /etc/keepalived/keepalived.conf

    - name: Start keepalived
      systemd:
        name: keepalived
        state: restarted

三、配置wordpress剧本

[root@m01 ~]# cat lnmp.yml 
- hosts: all
  vars_files: upstream_vars.yml
  tasks:
    - name: Stop selinux
      selinux:
        state: disabled

    - name: Stop Firewalld
      systemd:
        name: firewalld
        state: stopped
        enabled: no

    - name: Install unzip
      yum:
        name: unzip
        state: present

    - name: Create www Group
      group:
        name: www
        gid: 666

    - name: Create www User
      user:
        name: www
        uid: 666
        group: www
        shell: /sbin/nologin
        create_home: no

    - name: Copy nginx.repo
      copy:
        src: /root/conf/nginx.repo
        dest: /etc/yum.repos.d/
      when: (ansible_fqdn is match "lb*") or (ansible_fqdn is match "web*")

    - name: Install Nginx Server
      yum:
        name: nginx
        state: present
      when: (ansible_fqdn is match "lb*") or (ansible_fqdn is match "web*")

    - name: Config Nginx Server
      copy:
        src: /root/conf/nginx.conf
        dest: /etc/nginx/
      when: (ansible_fqdn is match "lb*") or (ansible_fqdn is match "web*")
      notify: restart_all_nginx

    - name: Config slb Server
      template:
        src: /root/conf/proxy.j2
        dest: /etc/nginx/conf.d/proxy.conf
      when: ansible_fqdn is match "lb*"
      notify: restart_slb

    - name: Copy proxy_params
      copy:
        src: /root/conf/proxy_params
        dest: /etc/nginx/
      when: ansible_fqdn is match "lb*"
    
    - name: Start slb Server
      systemd:
        name: nginx
        state: started
      when: ansible_fqdn is match "lb*"

    - name: Config nginx Server
      copy:
        src: /root/conf/linux.wp.com.conf
        dest: /etc/nginx/conf.d/
      when: ansible_fqdn is match "web*"
      notify: restart_code_nginx      

    - name: Mkdir Code
      file:
        path: /code
        state: directory
      when: ansible_fqdn is match "web*"

    - name: Tar wordpress and php
      unarchive:
        src: "{{ item.src }}"
        dest: "{{ item.dest }}"
      with_items:
        - { src: /root/package/wordpress-5.0.3-zh_CN.tar.gz, dest: /code/ }
        - { src: /root/package/php.tar.gz, dest: /tmp/ }
      when: ansible_fqdn is match "web*"

    - name: Grant Code Dir
      file:
        path: /code
        owner: www
        group: www
        recurse: yes
      when: ansible_fqdn is match "web*"

    - name: Start Web Nginx Server
      systemd:
        name: nginx
        state: started
        enabled: yes
      when: (ansible_fqdn is match "web*") or (ansible_fqdn is match "lb*")

    - name: Get PHP Install status
      shell: "rpm -qa | grep php"
      ignore_errors: yes
      register: get_php_install_status

    - name: Install PHP Server
      shell: yum localinstall -y /tmp/*.rpm
      when: 
        - ansible_fqdn is match "web*"
        - get_php_install_status.rc != 0

    - name: Config php Server
      copy:
        src: "{{ item.src }}"
        dest: "{{ item.dest }}"
      with_items:
        - { src: /root/conf/php.ini, dest: /etc/ }
        - { src: /root/conf/www.conf, dest: /etc/php-fpm.d/ }
      when: ansible_fqdn is match "web*"
      notify: restart_php

    - name: Start php and nginx Server
      systemd:
        name: "{{ item.name }}"
        state: started
        enabled: yes
      with_items:
        - { name: php-fpm }
        - { name: nginx }
      when: ansible_fqdn is match "web*"

    - name: Install Mariadb Server
      yum:
        name: "{{ db }}"
        state: present
      vars:
        db:
          - mariadb-server
          - MySQL-python
      when: ansible_fqdn == "db01"
    
    - name: Start Mariadb Server
      systemd:
        name: mariadb
        state: started
        enabled: yes
      when: ansible_fqdn == "db01"

    - name: Create wordpress Database
      mysql_db:
        name: wordpress
        state: present
      when: ansible_fqdn == "db01"

    - name: Create wordpress Database User
      mysql_user:
        name: "wp"
        host: "172.16.1.%"
        password: '123456'
        priv: "wordpress.*:ALL"
        state: present
      when: ansible_fqdn == "db01" 
        
    - name: Install nfs Server
      yum:
        name: "{{ nfs_server }}"
        state: present
      vars:
        nfs_server:
          - nfs-utils
          - rpcbind
      when: (ansible_fqdn == "nfs") or (ansible_fqdn is match "web*")

    - name: Config nfs Server
      copy:
        content: /data/wp-content 172.16.1.0/24(rw,sync,all_squash,anonuid=666,anongid=666)
        dest: /etc/exports      
      when: ansible_fqdn == "nfs"

    - name: Mkdir data
      file:
        path: /data
        state: directory
        owner: www
        group: www
      when: ansible_fqdn == "nfs"

    - name: Start nfs Server
      systemd:
        name: nfs
        state: started
      when: ansible_fqdn == "nfs" 

    - name: Copy wp-content to NFS
      copy:
        src: /root/package/wp-content
        dest: /data
        owner: www
        group: www
      when: ansible_fqdn == "nfs"
    
    - name: Start rpcbind Server
      systemd:
        name: rpcbind
        state: started
      when: (ansible_fqdn == "nfs") or (ansible_fqdn is match "web*")

    - name: Mount nfs
      mount:
        src: 172.16.1.31:/data/wp-content
        path: /code/wordpress/wp-content/
        fstype: nfs
        opts: defaults
        state: mounted
      when: ansible_fqdn is match "web*"

    - name: Install rsync Server
      yum:
        name: rsync
        state: present
      when: ansible_fqdn == "backup"

    - name: Config Rsync Server
      copy:
        src: /root/conf/rsyncd.conf
        dest: /etc/
      when: ansible_fqdn == "backup"

    - name: Config rsync.passwd
      copy:
        content: rsync_backup:123456
        dest: /etc/rsync.passwd
        mode: 0600
      when: ansible_fqdn == "backup"

    - name: Mkdir backup Dir
      file:
        path: /backup
        state: directory
        owner: www
        group: www
      when: ansible_fqdn == "backup"

    - name: Start rsync Server
      systemd:
        name: rsyncd
        state: started
      when: ansible_fqdn == "backup"

    - name: Install rsync and Inotify-tools Server
      yum:
        name: 
          - rsync
          - inotify-tools
        state: present
      when: ansible_fqdn == "nfs"

    - name: Install sersync Server
      copy:
        src: /root/package/sersync
        dest: /usr/local/
        mode: 0755
      when: ansible_fqdn == "nfs"

    - name: Config rsync.pass
      copy:
        content: 123456
        dest: /etc/rsync.pass
        mode: 0600
      when: ansible_fqdn == "nfs"

    - name: Start sersync
      script: /root/start_rsync.sh
      when: ansible_fqdn == "nfs"

  handlers:
    - name: restart_slb
      systemd:
        name: nginx
        state: restarted
      when: ansible_fqdn is match "lb*"

    - name: restart_code_nginx
      systemd:
        name: nginx
        state: restarted
      when: ansible_fqdn is match "web*"

    - name: restart_php
      systemd:
        name: php-fpm
        state: restarted
      when: ansible_fqdn is match "web*"

    - name: restart_all_nginx
      systemd:
        name: nginx
        state: restarted
      when: (ansible_fqdn is match "lb*") or (ansible_fqdn is match "web*")

四、使用到的变量文件

[root@m01 ~]# cat upstream_vars.yml 
ip: 172.16.1
web: web
nginx_port: 80
server_name: linux.wp.com

五、使用的jinja2模板

[root@m01 ~]# cat conf/proxy.j2 
upstream {{ server_name }} {
{% for i in range(7,9) %}
    server {{ ip }}.{{ i }};
{% endfor %}
}

server {
	listen {{ nginx_port }};
	server_name {{ server_name }};

	location / {
		proxy_pass http://{{ server_name }};
		include proxy_params;
	}
}

[root@m01 ~]# cat conf/keepalived.j2 
global_defs {
    router_id {{ ansible_fqdn }}
}

vrrp_instance VI_1 {
	{% if ansible_fqdn == "lb01" %}
    state MASTER
    priority 100
    {% else %}
    state BACKUP
    priority 90
    {% endif %}
    interface eth0
    virtual_router_id 50
    advert_int 1
    authentication {    
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        10.0.0.3
    }
}