Ansible自動化搭建wordpress博客

實驗環(huán)境：
客戶端：Windows
服務(wù)器：虛擬機運行CentOS7

LB Nginx1：172.16.80.100
LB Nginx2：172.16.80.101
Web Nginx1：172.16.80.102
Web Nginx2：172.16.80.103
Keepalived雙實例雙主模式规伐，兩個vip分別為172.16.80.200和172.16.80.201

準備：建議使用一個干凈的操作系統(tǒng)，關(guān)掉selinux昙楚，清空iptables轮洋。自行搭建好yum源衰猛、安裝Ansible福稳。儒恋。
官網(wǎng)下載wordpress-4.8.1-zh_CN.tar包

1、配置無密鑰登錄

[root@lb-nginx1 ~]#ssh-keygen -t rsa -P ''
#生成rsa密鑰
[root@lb-nginx1 ~]ssh-copy-id -i  ~/.ssh/id_rsa root@172.16.80.100
[root@lb-nginx1 ~]ssh-copy-id -i  ~/.ssh/id_rsa root@172.16.80.101
[root@lb-nginx1 ~]ssh-copy-id -i  ~/.ssh/id_rsa root@172.16.80.102
[root@lb-nginx1 ~]ssh-copy-id -i  ~/.ssh/id_rsa root@172.16.80.103
#把密鑰拷貝到各主機
[root@lb-nginx1 ~]ssh 172.16.80.100 'ifconfig';ssh 172.16.80.101 'ifconfig';ssh 172.16.80.102 'ifconfig';ssh 172.16.80.103 'ifconfig'
#驗證是否能正常訪問各主機

2黄刚、根據(jù)拓撲圖捎谨，規(guī)劃各種roles

  • keepalived
    我們要實現(xiàn)雙主雙實例模式民效，因此就設(shè)定keepalived1和keepalived2兩種角色好了
  • LB
    由于是高可用憔维，兩臺LB配置一模一樣，因此設(shè)定LB為一種角色
  • varnish
    同LB一樣畏邢，設(shè)定varinsh一種角色
  • Web服務(wù)器：
    web1搭建一個wordpress业扒，web2通過nfs共享web1的wordpress。因此劃分兩種角色
  • php
    就它一個了
  • mysql
    主從復制舒萎， mysql-master程储、mysql-slave

3、roles配置

調(diào)試了好久臂寝，直接上配置吧
有空再優(yōu)化一下配置章鲤，補充上注釋

[root@centos7a ~]mkdir -pv /etc/ansible/roles/{keepalived1,keepalived2,lb,mysql-master,mysql-slave,nfs,php,varnish,web1,web2}/{files,templates,tasks,handlers,vars,meta,default}
[root@centos7a ~]#cd /etc/ansible/roles/
[root@centos7a roles]#ls
keepalived1  keepalived2  lb  mysql-master  mysql-slave  nfs  php  varnish  web1  web2
[root@centos7c roles]#tree
.
├── keepalived1
│   ├── default
│   ├── files
│   ├── handlers
│   ├── meta
│   ├── tasks
│   ├── templates
│   └── vars
├── keepalived2
│   ├── default
│   ├── files
│   ├── handlers
│   ├── meta
│   ├── tasks
│   ├── templates
│   └── vars
├── lb
│   ├── default
│   ├── files
│   ├── handlers
│   ├── meta
│   ├── tasks
│   ├── templates
│   └── vars
├── mysql-master
│   ├── default
│   ├── files
│   ├── handlers
│   ├── meta
│   ├── tasks
│   ├── templates
│   └── vars
├── mysql-slave
│   ├── default
│   ├── files
│   ├── handlers
│   ├── meta
│   ├── tasks
│   ├── templates
│   └── vars
├── nfs
│   ├── default
│   ├── files
│   ├── handlers
│   ├── meta
│   ├── tasks
│   ├── templates
│   └── vars
├── php
│   ├── default
│   ├── files
│   ├── handlers
│   ├── meta
│   ├── tasks
│   ├── templates
│   └── vars
├── varnish
│   ├── default
│   ├── files
│   ├── handlers
│   ├── meta
│   ├── tasks
│   ├── templates
│   └── vars
├── web1
│   ├── default
│   ├── files
│   ├── handlers
│   ├── meta
│   ├── tasks
│   ├── templates
│   └── vars
└── web2
    ├── default
    ├── files
    ├── handlers
    ├── meta
    ├── tasks
    ├── templates
    └── vars

LB配置：

[root@lb-nginx1 roles]#tree lb/
lb/
├── default
├── files
│   └── lb.conf
├── handlers
│   └── main.yml
├── meta
├── tasks
│   └── main.yml
├── templates
└── vars
####################################################################

[root@lb-nginx1 roles]#cat lb/tasks/main.yml 
- name: install nginx
  yum: name=nginx state=present
- name: install conf
  copy: src=lb.conf dest=/etc/nginx/nginx.conf
  tags: conf
  notify: restart nginx
- name: start nginx
  service: name=nginx state=started enabled=yes

####################################################################

[root@lb-nginx1 roles]#cat lb/handlers/main.yml 
- name: restart nginx
  service: name=nginx state=restarted

####################################################################

[root@lb-nginx1 roles]#cat lb/files/lb.conf 
worker_processes  1;
events {
    worker_connections  1024;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
    upstream www.server.pools{
    server 172.16.80.200:6081;
    server 172.16.80.201:6081;
    }
    server {
        listen       80;
        server_name  www.nginx.com;
        location / {
        proxy_pass http://www.server.pools;
            root   html;
            index  index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }
}

keepalived1配置

[root@lb-nginx1 roles]#tree keepalived1/
keepalived1/
├── default
├── files
│   └── keepalived1.conf
├── handlers
│   └── main.yml
├── meta
├── tasks
│   └── main.yml
├── templates
└── vars

####################################################################

[root@lb-nginx1 roles]#cat keepalived1/tasks/main.yml 
- name: install keepalived
  yum: name=keepalived state=present
- name: install conf
  copy: src=keepalived1.conf dest=/etc/keepalived/keepalived.conf
  tags: conf
  notify: restart keepalived
- name: start keepalived
  service: name=keepalived state=started enabled=yes

####################################################################

[root@lb-nginx1 roles]#cat keepalived1/files/keepalived1.conf 
! Configuration File for keepalived

global_defs {
   notification_email {
   root@localhost
}
   notification_email_from keadmin@localhost
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id CentOS7B.luo.com
}


vrrp_instance VI_1 {
    state BACKUP
    interface ens33
    virtual_router_id 15
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass hahahaha
    }
    virtual_ipaddress {
    172.16.80.200
    }
}

vrrp_instance VI_2 {
    state MASTER
    interface ens33
    virtual_router_id 22
    priority 150
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass hehehehe
    }
    virtual_ipaddress {
    172.16.80.201
    }
}

####################################################################


[root@lb-nginx1 roles]#cat keepalived1/handlers/main.yml 
- name: restart keepalived
  service: name=keepalived state=restarted

varnish配置

[root@lb-nginx1 roles]#tree varnish/
varnish/
├── default
├── files
│   └── varnish.vcl
├── handlers
│   └── main.yml
├── meta
├── tasks
│   └── main.yml
├── templates
└── vars


####################################################################

[root@lb-nginx1 roles]#cat varnish/tasks/main.yml 
- name: install varnish
  yum: name=varnish state=present
- name: install conf
  copy: src=varnish.vcl dest=/etc/varnish/default.vcl
  tags: conf
  notify: restart varnish
- name: start varnish
  service: name=varnish state=started enabled=yes

####################################################################

[root@lb-nginx1 roles]#cat varnish/files/varnish.vcl 
vcl 4.0;
import directors;
backend web1 {
    .host = "172.16.80.102";
    .port = "80";
}
backend web2 {
    .host = "172.16.80.103";
    .port = "80";
}
sub vcl_init {                  
    new WEB = directors.round_robin();
    WEB.add_backend(web1);
    WEB.add_backend(web2);
}
sub vcl_recv {
    set req.backend_hint = WEB.backend();        
}
sub vcl_backend_response {
}
sub vcl_deliver {
}

####################################################################

[root@lb-nginx1 roles]#cat varnish/handlers/main.yml 
- name: restart varnish
  service: name=varnish state=restarted

web1配置

[root@lb-nginx1 roles]#tree web1/
web1/
├── default
├── files
│   ├── wordpress-4.8.1-zh_CN.tar.gz
│   └── web.conf
├── handlers
│   └── main.yml
├── meta
├── tasks
│   └── main.yml
├── templates
└── vars

[root@lb-nginx1 roles]#cat web1/tasks/main.yml 
- name: add user nginx
  user: name=nginx group=nginx uid=666
- name: install nginx
  yum: name=nginx state=present
- name: install conf
  copy: src=web.conf dest=/etc/nginx/nginx.conf
  tags: conf
  notify: restart nginx
- name: copy blog
  unarchive: src=blog.tar.gz dest=/usr/share/nginx/html/
- name: set mode
  file: name=/usr/share/nginx/html/wordpress recurse=yes  owner=nginx group=nginx
- name: start nginx
  service: name=nginx state=started enabled=yes

[root@lb-nginx1 roles]#cat web1/handlers/main.yml 
- name: restart nginx
  service: name=nginx state=restarted

[root@lb-nginx1 roles]#cat web1/files/web.conf 
worker_processes  1;
events {
    worker_connections  1024;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
    server {
        listen       80;
        server_name  www.static.com;
        location / {
            root   html;
            index  index.php index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    location ~ \.php$ {
            root           /usr/share/nginx/html;
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            include        fastcgi_params;
       }
    }
}

Web2配置

[root@lb-nginx1 roles]#tree web2
web2
├── default
├── files
│   └── web.conf
├── handlers
│   └── main.yml
├── meta
├── tasks
│   └── main.yml
├── templates
└── vars


[root@lb-nginx1 roles]#cat web2/tasks/main.yml 
- name: add user nginx
  user: name=nginx group=nginx uid=666
- name: install nginx
  yum: name=nginx state=present
- name: install conf
  copy: src=web.conf dest=/etc/nginx/nginx.conf
  tags: conf
  notify: restart nginx
- name: mkdir
  file: name=/usr/share/nginx/html/wordpress state=directory
- name: mount
  mount: src=172.16.80.102:/usr/share/nginx/html/wordpress/ name=/usr/share/nginx/html/wordpress fstype=nfs state=mounted
- name: start nginx
  service: name=nginx state=started enabled=yes


[root@lb-nginx1 roles]#cat web2/handlers/main.yml 
- name: restart nginx
  service: name=nginx state=restarted

[root@lb-nginx1 roles]#cat web2/files/web.conf 
worker_processes  1;
events {
    worker_connections  1024;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
    server {
        listen       80;
        server_name  www.static.com;
        location / {
            root   html;
            index  index.php index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    location ~ \.php$ {
            root           /usr/share/nginx/html;
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            include        fastcgi_params;
       }
    }
}


[root@lb-nginx1 roles]#tree nfs/
nfs/
├── default
├── files
│   └── exports
├── handlers
├── meta
├── tasks
│   └── main.yml
├── templates
└── vars

[root@lb-nginx1 roles]#cat nfs/tasks/main.yml 
- name: install nfs
  yum: name=nfs-utils state=present
- name: install conf
  copy: src=exports dest=/etc/exports
- name: start nfs
  service: name=nfs state=started enabled=yes

[root@lb-nginx1 roles]#cat nfs/files/exports 
/usr/share/nginx/html/wordpress 172.16.80.103(rw,all_squash,anonuid=666)

php配置：

[root@lb-nginx1 roles]#tree php/
php/
├── default
├── files
├── handlers
├── meta
├── tasks
│   └── main.yml
├── templates
└── vars

[root@lb-nginx1 roles]#cat php/tasks/main.yml 
- name: install php
  yum: name={{ item }} state=present
  with_items:
  - php-mysql
  - php-fpm
- name: start php-fpm
  service: name=php-fpm state=started enabled=yes

mysql-master

[root@lb-nginx1 roles]#tree mysql-master/
mysql-master/
├── default
├── files
│   └── my.cnf
├── handlers
├── meta
├── tasks
│   └── main.yml
├── templates
└── vars

[root@lb-nginx1 roles]#cat mysql-master/tasks/main.yml 
- name: install mariadb
  yum: name={{ item }} state=present
  with_items:
  - mariadb
  - mariadb-server
- name: install conf
  copy: src=my.cnf dest=/etc/my.cnf
- name: start mariadb
  service: name=mariadb state=started enabled=yes
- name: mysql
  command: mysql -e "create database wordpress;grant all on wordpress.* to wordpress@'172.16.80.%' identified by '123456';"
- name: command
  command: mysql -e "grant replication slave,replication client on *.* to 'backuper'@'172.16.%.%' identified by 'backuper';"

[root@lb-nginx1 roles]#cat mysql-master/files/my.cnf 
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
symbolic-links=0
log_bin=master_bin
server_id=1
innodb_file_per_table=ON
skip_name-resolve=ON

[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid

mysql-slave

[root@lb-nginx1 roles]#tree mysql-slave/
mysql-slave/
├── default
├── files
│   └── my.cnf
├── handlers
├── meta
├── tasks
│   └── main.yml
├── templates
└── vars


[root@lb-nginx1 roles]#cat mysql-slave/tasks/main.yml 
- name: install mariadb
  yum: name={{ item }} state=present
  with_items:
  - mariadb
  - mariadb-server
- name: install conf
  copy: src=my.cnf dest=/etc/my.cnf
- name: start mariadb
  service: name=mariadb state=started enabled=yes
- name: command
  command: mysql -e "change master to master_host='172.16.80.102',master_user='backuper',master_password='backuper',master_log_file='master_bin.000001',master_log_pos=30364;"
- name: command
  command: mysql -e "start slave;"

[root@lb-nginx1 roles]#cat mysql-slave/files/my.cnf 
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
symbolic-links=0

relay-log=relay-log
server-id=22
innodb_file_per_table=ON
skip_name_resolve=ON

[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid

!includedir /etc/my.cnf.d

4、調(diào)用role

[root@lb-nginx1 ~]#vim /etc/ansible/hosts
[proxy]
172.16.80.100
172.16.80.101
[web]
172.16.80.102
172.16.80.103
#在/etc/ansible/hosts加上上面幾行

[root@centos7a ~]#cat role.yml 
- hosts: proxy
  remote_user: root
  roles:
  - lb
  - varnish

- hosts: 172.16.80.100
  remote_user: root
  roles:
  - keepalived1

- hosts: 172.16.80.101
  remote_user: root
  roles:
  - keepalived2

- hosts: 172.16.80.102
  remote_user: root
  roles:
  - php
  - web1
  - nfs

- hosts: 172.16.80.103
  remote_user: root
  roles:
  - php
  - nfs
  - web2

- hosts: 172.16.80.102
  remote_user: root
  roles:
  - mysql-master


- hosts: 172.16.80.103
  remote_user: root
  roles: 
  - mysql-slave

測試

[root@lb-nginx1 ~]#ansible-playbook -C role.yml

如果沒有問題咆贬，部署

[root@lb-nginx1 ~]#ansible-playbookrole.yml

安裝好是這樣的：

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