nhrpd_config.yaml

---
- name: Enable nhrpd on servers with FRR installed
  hosts: all
  become: yes
  vars:
    frr_conf_path: "/etc/frr/frr.conf"  # Path to the main FRR configuration file
    nhrpd_conf_path: "/etc/frr/nhrpd.conf"  # Path to the nhrpd configuration file

  tasks:
    - name: Check if FRR is installed
      command: dpkg -l | grep frr
      register: frr_installed
      ignore_errors: yes

    - name: Fail if FRR is not installed
      fail:
        msg: "FRR is not installed on this server."
      when: frr_installed.rc != 0

    - name: Enable nhrpd in FRR configuration
      lineinfile:
        path: "{{ frr_conf_path }}"
        line: "nhrpd=yes"
        state: present
        create: yes
        backup: yes
      when: frr_installed.rc == 0

    - name: Create nhrpd configuration file if not present
      copy:
        dest: "{{ nhrpd_conf_path }}"
        content: |
          # nhrpd configuration
          debug nhrp
          interface gre1
            nhrp network-id 1
            nhrp holdtime 300
            nhrp nhs 192.168.1.1
            nhrp shortcut
            nhrp redirect
          exit
          interface nhrp1
            nhrp nhs 192.168.1.1 nbma 10.0.0.1
          exit
        owner: frr
        group: frr
        mode: '0644'
        when: frr_installed.rc == 0

    - name: Ensure nhrpd is enabled in the FRR daemons file
      lineinfile:
        path: "/etc/frr/daemons"
        regexp: '^nhrpd='
        line: 'nhrpd=yes'
        state: present
        backup: yes
      when: frr_installed.rc == 0

    - name: Start and enable nhrpd service
      systemd:
        name: frr
        state: restarted
        enabled: yes
      when: frr_installed.rc == 0

    - name: Verify nhrpd service is running
      command: systemctl status frr
      register: frr_service_status
      failed_when: "'active (running)' not in frr_service_status.stdout"
      when: frr_installed.rc == 0