haproxy-wi/app/scripts/ansible/roles/keepalived/tasks/install.yml

---        
- name: check if Keepalived is installed
  yum:
    list=keepalived
  register: is_installed
  when: (ansible_facts['os_family'] == "RedHat") or (ansible_facts['os_family'] == 'CentOS')
  
- name: Keepalived has already installed
  debug:
    msg: "Keepalived has already installed"
  when: is_installed.results|selectattr("yumstate", "match", "installed")|list|length != 0

- name: Exiting  
  meta: end_play
  when: (ansible_facts['os_family'] == "RedHat") or (ansible_facts['os_family'] == 'CentOS') and is_installed.results|selectattr("yumstate", "match", "installed")|list|length != 0
  
  
- name: install the latest version of Keepalived
  yum:
    name: 
      - keepalived
    state: latest
  when: (ansible_facts['os_family'] == "RedHat") or (ansible_facts['os_family'] == 'CentOS')
  environment:
    http_proxy: "{{PROXY}}"
    https_proxy: "{{PROXY}}"

    
- name: Install keepalived
  apt:
    name: 
      - keepalived
    state: present
  when: (ansible_facts['os_family'] == 'Debian') or (ansible_facts['os_family'] == 'Ubuntu')
  environment:
    http_proxy: "{{PROXY}}"
    https_proxy: "{{PROXY}}"

  
- name: Copy keepalived configuration in place.
  template:
    src: keepalived.conf.j2
    dest: /etc/keepalived/keepalived.conf
    mode: 0644
  notify: restart keepalived
  
  
- name: Enable and start service keepalived
  service:
    name: keepalived
    daemon_reload: yes
    state: started
    enabled: yes
  ignore_errors: yes
  
  
- name: Enable net.ipv4.ip_forward
  sysctl:
    name: net.ipv4.ip_forward
    value: '1'
    sysctl_set: yes
    state: present
    reload: yes
    
    
- name: Add syn_flood tasks
  include: ../../haproxy/tasks/syn_flood.yml
  when: (SYN_FLOOD is defined) and (SYN_FLOOD|length > 0)