check_group.yml

---
- name: Collate multicast details
  hosts: all
  connection: local
  gather_facts: false
  vars_files:
    - "{{vault_file|default('./secrets/vault.yml')}}"
    - "{{inventory_dir}}/vars/ntc.yml"
  vars:
    mcast_group: "UNSET"
    mcast_net: "224.0.0.0/4"
    results: "{{inventory_dir}}/outputs"
    host_results: "{{ results }}/{{ inventory_hostname }}"
    task_list:
      - "tasks/{{os}}/{{task_path|basename}}"
      - "{{task_path}}"

  tasks:
    - name: Validate multicast group address
      fail:
        msg: "Valid multicast group must be passed to playbook with -e/--extra-vars, e.g. `-e mcast_group=224.0.0.1`"
      when: not mcast_group|ipaddr or not mcast_group|ipaddr(mcast_net)

    - name: Create output directories
      local_action: file path={{ results }} state=directory
      run_once: true
      tags: ['setup']

    - name: Create host output directories
      local_action: file path={{ host_results }} state=directory
      tags: ['setup']

    - name: "Include tasks"
      include: "{{ lookup('first_found', task_list) }}"
      with_fileglob: [ "tasks/*.yml" ]
      loop_control:
        loop_var: task_path

    - name: "Compile Report"
      template:
        src: "templates/report.j2"
        dest: "{{results}}/{{mcast_group}}.yaml"
      run_once: true
      tags: ['compile']

    - name: "Generate Graph"
      template:
        src: "templates/graph.j2"
        dest: "{{results}}/{{mcast_group}}.dot"
      vars:
        report: "{{ lookup('file', results + '/' + mcast_group + '.yaml')|from_yaml }}"
        edges: "{{ report|get_mroute_edges(mcast_group, play_hosts) }}"
      run_once: true
      tags: ['generate']

    - name: "Render Graph"
      command: dot -Tpng "{{results}}/{{mcast_group}}.dot" -o "{{results}}/{{mcast_group}}.png"
      run_once: true
      tags: ['render']



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