Automating LAMP Stack Installation and Uninstallation with Ansible

 

 Installation and uninstallation of a LAMP (Linux, Apache, MySQL, PHP) stack using Ansible. Ansible is an open-source automation tool that allows you to define and manage infrastructure as code.

 


 

The LAMP stack is a popular software bundle used to deploy web applications. It consists of the following components:

  • Linux: The operating system (in this case, we’re using an Amazon Linux instance).
  • Apache: The web server responsible for serving web content.
  • MySQL/MariaDB: The relational database management system for storing application data.
  • PHP: The server-side scripting language for dynamic web content.

We’ll use Ansible to automate the installation and configuration of these components.

 

Prerequisites

  • An ec2/vm/compute instance with Ansible installed.
  • Access to the AWS/Azure/GCP Secrets Manager service.

 

complete playbook

 

---
- name: "Installing LAMP stack and configuring"
  hosts: amazon
  become: true
  vars_files:
    - httpd.vars
    - mariadb.vars
    - packages.vars
  tasks:
    # Task 1: Installing Packages
    - name: "Installing Packages"
      yum:
        name: "{{ packages }}"
        state: present
      tags:
        - lamp
        - never

    # Task 2: Enabling/Restarting services
    - name: "Enabling/Restarting services"
      service:
        name: "{{ item }}"
        state: restarted
        enabled: true
      with_items: "{{ services }}"
      tags:
        - lamp
        - never

    # Task 3: Creating httpd.conf from template
    - name: "Creating httpd.conf from httpd.conf.tmpl"
      template:
        src: httpd.conf.tmpl
        dest: /etc/httpd/conf/httpd.conf
      tags:
        - lamp
        - never

    # Task 4: Creating Virtual host
    - name: "Creating Virtual host"
      template:
        src: virtualhost.conf.tmpl
        dest: /etc/httpd/conf.d/default.conf
        owner: "{{ httpd_owner }}"
        group: "{{ httpd_group }}"
      tags:
        - lamp
        - never

    # Task 5: Creating docroot for the website
    - name: "Creating docroot for {{ hostname }}"
      file:
        path: "/var/www/html/default/"
        state: directory
        owner: "{{ httpd_owner }}"
        group: "{{ httpd_group }}"
      tags:
        - lamp
        - never

    # Task 6: Setting python3 mysql module PyMySQL
    - name: "Setting python3 mysql module PyMySQL"
      pip:
        name: PyMySQL
      tags:
        - lamp
        - mariadb
        - never

    # Task 7: Setting ROOT password for mariadb-server
    - name: "Setting ROOT password for mariadb-server"
      ignore_errors: true
      mysql_user:
        login_user: "root"
        login_password: ""
        login_unix_socket: /var/lib/mysql/mysql.sock
        name: "root"
        password: "{{ mariadb_root_password }}"
      tags:
        - lamp
        - mariadb
        - never

    # Task 8: Creating DB for the website
    - name: "Creating DB for blog - {{blog_db_name}}"
      mysql_db:
        login_user: "root"
        login_password: "{{ mariadb_root_password }}"
        login_unix_socket: /var/lib/mysql/mysql.sock
        name: "{{ blog_db_name }}"
        state: present
      tags:
        - lamp
        - mariadb
        - never

    # Task 9: Creating extra user for WordPress
    - name: "Creating extra user for WordPress - {{extra_user_name}}"
      mysql_user:
        login_user: "root"
        login_password: "{{ mariadb_root_password }}"
        login_unix_socket: /var/lib/mysql/mysql.sock
        name: "{{ extra_user_name }}"
        password: "{{ extra_user_password }}"
        host: "%"
        priv: "{{ blog_db_name }}.*:ALL"
      tags:
        - lamp
        - never
        - mariadb

    # Task 10: Downloading WordPress
    - name: "Downloading WordPress using URL"
      get_url:
        url: "{{ wp_url }}"
        dest: "/tmp/wordpress.tar.gz"
      tags:
        - lamp
        - mariadb
        - wordpress
        - never

    # Task 11: Extracting WordPress
    - name: "Extracting WordPress"
      unarchive:
        src: "/tmp/wordpress.tar.gz"
        dest: "/tmp/"
        remote_src: true
      tags:
        - lamp
        - mariadb
        - wordpress
        - never

    # Task 12: Copying WordPress files to docroot
    - name: "Copying WordPress files to docroot"
      copy:
        src: "/tmp/wordpress/"
        dest: "/var/www/html/default/"
        remote_src: true
        owner: "{{ httpd_owner }}"
        group: "{{ httpd_group }}"
      tags:
        - lamp
        - mariadb
        - wordpress
        - never

    # Task 13: Copying wp-config.php file to remote server
    - name: "Copying wp-config.php file to remote server"
      template:
        src: "./wp-config.php.tmpl"
        dest: "/var/www/html/default/wp-config.php"
        owner: "{{ httpd_owner }}"
        group: "{{ httpd_group }}"
      tags:
        - lamp
        - mariadb
        - wordpress
        - never

    # Task 14: Post Installation Cleanup
    - name: "Post Installation Cleanup"
      file:
        path: "{{ item }}"
        state: absent
      with_items:
        - "/tmp/wordpress/"
        - "/tmp/wordpress.tar.gz"
      tags:
        - wordpress

    # Task 15: Removing Packages
    - name: "Removing Packages"
      yum:
        name: "{{ packages }}"
        state: absent
      tags:
        - cleanup
        - never

    # Task 16: Removing Directories
    - name: "Removing Directories"
      file:
        path: "{{ item }}"
        state: absent
      with_items:
        - /etc/httpd/conf/httpd.conf
        - /etc/httpd/conf.d/default.conf
        - /var/www/html/default/
      tags:
        - cleanup
        - never
 

The playbook consists of several tasks, each responsible for a specific action.

  • Task 1: Installing Packages: Installs the necessary packages for the LAMP stack.
  • Task 2: Enabling/Restarting services: Ensures that the required services are enabled and restarted.
  • Task 3: Creating httpd.conf from template: Generates the Apache HTTP server configuration file from a template.
  • Task 4: Creating Virtual host: Creates a virtual host configuration file for the default website.
  • Task 5: Creating docroot for the website: Creates the document root directory for the website.
  • Task 6: Setting python3 mysql module PyMySQL: Installs the PyMySQL module for Python.
  • Task 7: Setting ROOT password for mariadb-server: Sets the root password for the MariaDB server.
  • Task 8: Creating DB for the website: Creates the database for the website.
  • Task 9: Creating extra user for WordPress: Creates an additional user with privileges for the WordPress database.
  • Task 10: Downloading WordPress: Retrieves the WordPress source code from a specified URL.
  • Task 11: Extracting WordPress: Extracts the WordPress archive.
  • Task 12: Copying WordPress files to docroot: Copies the WordPress files to the document root directory.
  • Task 13: Copying wp-config.php file to remote server: Creates the wp-config.php file for WordPress.
  • Task 14: Post Installation Cleanup: Cleans up temporary files and directories.
  • Task 15: Removing Packages: Uninstalls the packages installed during the installation process.
  • Task 16: Removing Directories: Removes the directories created during the installation process.
 

 

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