---
- hosts: loadbalancer
  become: true
  tasks:
    - name: get haproxy from apt-repository
      apt_repository:
          repo: ppa:vbernat/haproxy-1.7
          state: present
      tags:
          - haproxy
          - ppa

    - name: install haproxy (repository-version)
      apt:
          name: "{{item}}"
          state: present
          update_cache: yes
      with_items:
        - haproxy
      tags:
          - haproxy

    - name: ensure haproxy is running (and enable it at boot)
      service:
          name: haproxy
          state: started
          enabled: yes
      tags:
          - haproxy
          - service

    # replace 'mode http' by 'mode tcp'
    - name: Check if mode is http
      shell: grep 'mode http' /etc/haproxy/haproxy.cfg | cat
      register: http_mode

    - name: switch mode from http to tcp (haproxy.cfg)
      lineinfile:
          dest: /etc/haproxy/haproxy.cfg
          state: present
          regexp: '\s*\t*mode\s*\t*http'
          line: '        mode tcp'
      when: http_mode.stdout !=""
    # END replace 'mode http' by 'mode tcp'

    # replace 'option httplog' by 'option tcplog'
    - name: Check if option is httplog
      shell: grep 'option httplog' /etc/haproxy/haproxy.cfg | cat
      register: option_httplog

    - name: switch option from httplog to tcplog (haproxy.cfg)
      lineinfile:
          dest: /etc/haproxy/haproxy.cfg
          state: present
          regexp: '\s*\t*option\s*\t*httplog'
          line: '        option tcplog'
      when: option_httplog.stdout !=""
    # END replace 'option httplog' by 'option tcplog'

    # check if peering passage is existing
    - name: Check if option is httplog
      shell: grep '# loadbalancer peering' /etc/haproxy/haproxy.cfg | cat
      register: loadbalancer_peering

    - name: insert/update configuration using a local file
      blockinfile:
          dest: /etc/haproxy/haproxy.cfg
          block: "{{ lookup('file', '/home/vagrant/ansible/haproxy_extension.cfg') }}"
    # END check if peering passage is existing