Ansible 사용하여 WordPress, Haproxy 설정 해보기

Ansible 설치 및 설정에 이어서 진행 해보도록 하겠습니다.

 

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우선 wordpress를 2번 서버에 설치하고 설정하는 작업을 ansible을 사용하여 해보겠습니다.

처음 작성한 코드

---
- name: wordpress down and start
  hosts: web
  tasks:
        - name: wget, httpd install
          yum:
                name: "{{ item }}"
                state: latest
          loop:
                - wget
                - httpd
                - epel-release
                - yum-utils
                - http://rpms.remirepo.net/enterprise/remi-release-7.rpm
                - php
                - php-common
                - php-opcache
                - php-mcrypt
                - php-cli
                - php-gd
                - php-curl
                - php-mysqlnd
        - name: yum confg & php install
          shell: 'yum-config-manager --enable remi-php7.4'
        - name: wget link down
          shell: 'wget https://ko.wordpress.org/wordpress-5.8.6-ko_KR.tar.gz'
        - name: tar xvfz
          shell: 'tar xvfz wordpress-5.8.6-ko_KR.tar.gz'
        - name: directory permission change
          shell: 'chown -R root:root /root/wordpress'
        - name: wordpress file copy
          shell: 'cp -r /root/wordpress/* /var/www/html/'
        - name: wp-config.php copy
          copy:
                src: /var/www/html/wp-config-sample.php
                dest: /var/www/html/wp-config.php
        - name: change index.php
          lineinfile:
                path: /etc/httpd/conf/httpd.conf
                regexp: 'DirectoryIndex health.html'
                line: 'DirectoryIndex index.php'
        - name: change database_name
          replace:
                path: /var/www/html/wp-config.php
                regexp: 'database_name_here'
                replace: 'wordpress'
        - name: change username
          replace:
                path: /var/www/html/wp-config.php
                regexp: 'username_here'
                replace: 'root'
	- name: change password
          replace:
                path: /var/www/html/wp-config.php
                regexp: 'password_here'
                replace: 'It12345!'
        - name: change localhost
          replace:
                path: /var/www/html/wp-config.php
                regexp: 'localhost'
                replace: '10.0.0.3'
        - name: httpd service start
          service:
                name: httpd
                state: restarted

처음 작성한 코드에서는 shell 명령어를 사용하여 작성한 부분이 있는데, ansible 모듈에서 해당 부분을 찾아서 다시 수정을 해보았습니다.

수정한 코드

---
- name: wordpress down and start
  hosts: web
  tasks:
        - name: wget, httpd install
          yum:
                name: "{{ item }}"
                state: latest
          loop: **=> [loop를 사용하여 반복문 처럼 아래 패키지 설치]**
                - httpd
                - epel-release
                - yum-utils
                - http://rpms.remirepo.net/enterprise/remi-release-7.rpm
                - php
                - php-common
                - php-opcache
                - php-mcrypt
                - php-cli
                - php-gd
                - php-curl
                - php-mysqlnd
        - name: yum confg & php install
          shell: 'yum-config-manager --enable remi-php7.4'
        - name: wordpress.tar file download
          get_url:
                url: https://ko.wordpress.org/wordpress-5.8.6-ko_KR.tar.gz
                dest: /root
        - name: tar unarchive
          unarchive:
                src: /root/wordpress-5.8.6-ko_KR.tar.gz 
                dest: /root 
                remote_src: yes **=> [하위 폴더에까지 적용시키거나 원격으로 파일을 건드릴 때 사용하는 옵션]**
        - name: directory permission change
          shell: 'chown -R root:root /root/wordpress'
        - name: wordpress file copy
          copy:
                src: /root/wordpress/
                dest: /var/www/html/
                remote_src: yes **=> [하위 폴더에까지 적용시키거나 원격으로 파일을 건드릴 때 사용하는 옵션]**
        - name: wp-config.php copy
          copy:
                src: /var/www/html/wp-config-sample.php
                dest: /var/www/html/wp-config.php
        - name: change index.php
          lineinfile:
                path: /etc/httpd/conf/httpd.conf
                regexp: 'DirectoryIndex health.html'
                line: 'DirectoryIndex index.php'
        - name: change database_name
          replace:
                path: /var/www/html/wp-config.php
                regexp: "{item.regexp}"
                replace: "{item.replace}"
	 loop:
                - {regexp: "datebasename_here", replace: "wordpress" }
                - {regexp: "username_here", replace: "root" }
                - {regexp: "password_here", replace: "It12345!" }
                - {regexp: "localhost", replace: "10.0.0.4" }
        - name: httpd service start
          service::ㅈㅂ
                name: httpd
                state: restarted

그 후 3번 서버에도 wordpress를 설치해주고 haproxy도 설치 후 설정을 해주도록 하겠습니다.

3번서버 wordpress & haproxy 설치 및 설정

---
- name: wordpress down and start
  hosts: was
  tasks:
        - name: package install
          yum:
                name: "{{ item }}"
                state: latest
          loop:
                - httpd
                - epel-release
                - yum-utils
                - http://rpms.remirepo.net/enterprise/remi-release-7.rpm
                - haproxy
        - name: yum config
          shell: 'yum-config-manager --enable remi-php7.4'
        - name: php7.4 install
          yum:
                name: "{{ item }}"
                state: latest
          loop:
                - php
                - php-common
                - php-opcache
                - php-mcrypt
                - php-cli
                - php-gd
                - php-curl
                - php-mysqlnd
        - name: wordpress.tar file download
          get_url:
                url: https://ko.wordpress.org/wordpress-5.8.6-ko_KR.tar.gz
                dest: /root
        - name: tar unarchive
          unarchive:
                src: /root/wordpress-5.8.6-ko_KR.tar.gz
                dest: /root
                remote_src: yes
        - name: directory permission change
          shell: 'chown -R root:root /root/wordpress'
        - name: wordpress file copy
          copy:
                src: /root/wordpress/
                dest: /var/www/html/
                remote_src: yes
        - name: wp-config.php copy
          copy:
                src: /var/www/html/wp-config-sample.php
                dest: /var/www/html/wp-config.php
        - name: change index.php & Listen port
          lineinfile:
                path: /etc/httpd/conf/httpd.conf
                regexp: "{{ item.src }}"
                line: "{{ item.dest }}"
          loop:
                - {src: 'DirectoryIndex health.html', dest: 'DirectoryIndex health.php'}
                - {src: 'Listen 80', dest: 'Listen 8080'}
        - name: change database_name
          replace:
                path: /var/www/html/wp-config.php
                regexp: "{{ item.regexp }}"
                replace: "{{ item.replace }}"
          loop:
                - {regexp: "database_name_here", replace: "wordpress" }
                - {regexp: "username_here", replace: "root" }
                - {regexp: "password_here", replace: "It12345!" }
                - {regexp: "localhost", replace: "10.0.0.4" }
        - name: haproxy.cfg line change
          replace:
                path: /etc/haproxy/haproxy.cfg
                regexp: "{{ item.src }}"
                replace: " {{ item.dest }}"
          loop:
                - {src: ":5000", dest: ":80" }
                - {src: "127.0.0.1:5001", dest: "10.0.0.2:80" }
                - {src: "127.0.0.1:5002", dest: "10.0.0.3:8080" }
        - name: haproxy.cfg line delete
          lineinfile:
                path: /etc/haproxy/haproxy.cfg
                regexp: "{{ item.regexp }}"
                line: "{{ item.line }}"
          loop:
                - {regexp: "127.0.0.1:5003", line: "#" }
                - {regexp: "127.0.0.1:5004", line: "#" }
        - name: httpd service start
          service:
                name: "{{ item }}"
                state: restarted
          loop:
                - httpd
                - haproxy

위 설정 및 설치를 완료하면 3번 서버로 인터넷에서 url을 입력하면 로드밸런싱을 통해 2번서버나 3번서버가 나오게 된다.