Part 1. Ansible palybook demo updating php.ini (memory_limit to 512M) to multiple hosts.

The goal is to make sure we are targeting the correct running/active php version using this command:

ps -aux | grep /etc/php/ | grep -v grep | awk '{print $14}' | awk -F'/' '{print $4}'

Playbook script:

- hosts: all
  vars:
    ansible_host_key_checking: false

    # Workaround if LXC target host does not have python 3 (not by default)
    ansible_python_interpreter: "/usr/bin/python3"

    #  vars_files:
    # - vars.yml

  become: true
  become_user: root

  # Ansible tasks stars here..
  tasks:


    # -- START Install Required repo and updates.
    # Required for PHP FPM
    - name: Getting the php version
      shell: "ps -aux | grep /etc/php/ | grep -v grep | awk '{print $14}' | awk -F'/' '{print $4}'"
      register: phpversion

    - name: Updating php.ini memory_limi
      ini_file:
          path: /etc/php/{{ phpversion.stdout }}/fpm/php.ini
          section: PHP
          option: memory_limit
          value: 512M

    - name: Restart PHP
      shell: "systemctl restart php{{ phpversion.stdout }}-fpm"

Demo screenshot:

Part 2. Enabling NGINX caching (fastcgi) using Ansible (4 different hosts/servers)

- hosts: all

  become: true
  become_user: root

  # Ansible tasks starts here..
  tasks:

      - name: Insert fastcgi caching config in /etc/nginx/sites-available/default
        blockinfile:
          path: /etc/nginx/sites-available/default
          # state: absent
          marker: "### {mark} - Part 1 - Insert fastcgi module config - ANSIBLE MANAGED BLOCK ###"
          insertbefore: '^server {'
          block: |
            fastcgi_cache_path /etc/nginx/cache levels=1:2 keys_zone=MY_CACHE:100m inactive=60m;
            fastcgi_cache_key "$scheme$request_method$host$request_uri";


      - name: Part 2 Insert fastcgi caching config in /etc/nginx/sites-available/default
        blockinfile:
            path: /etc/nginx/sites-available/default
            # state: absent
            marker: "               ### {mark} - Part2 - Insert fastcgi module config - ANSIBLE MANAGED BLOCK ###"
            insertafter: "fastcgi_pass unix:/run/php/php7.4-fpm.sock;"
            block: |
                             include fastcgi_params;
                             fastcgi_cache MY_CACHE;
                             fastcgi_cache_valid 200 60m;
                             add_header jmc-lxd-X-Cache $upstream_cache_status;

      - name: Test and reload nginx
        shell: 'nginx -t; systemctl reload nginx'
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