system/ansible/deployment_poc/tasks/netbox_evaluate_cluster.yml

---
- name: Evaluate cluster
  block:
    - name: Increment counters
      set_fact:
        retry_count:  "{{ 0 if retry_count is undefined else retry_count | int +1 }}"
        host_count: "{{ 0 if retry_count is undefined else host_count | int +1 }}"

    - name: Pick cluster host
      set_fact:
        #host_choice: "{{ nb_hosts.json.results[nb_hosts.json.count | random | int] }}" #PICK RANDOM
        #host_choice: "{{ nb_hosts.json.results[1] }}" #FAIL TEST
        host_choice: "{{ nb_hosts.json.results[host_count | int] }}" #INCREMENT
      no_log: true

    - name: Evaluate cluster host status
      set_fact:
        host_status: "{{ host_choice.status.value }}"
      #register: host_status

    - name: Evaluate cluster host name
      set_fact:
        host: "{{ host_choice.name }}"

    - name: Evaluate cluster host status
      fail:
        msg: Host is not ready.
      when: host_status != 'active'

    - name: Evaluate cluster host configuration
      block:
        - name: Cluster derived variables 1/2
          set_fact:
            storage: "{{ host_choice.config_context.storage[0] }}"
            deployment_servers: "{{ host_choice.config_context.deployment_servers }}"
            dhcp_servers: "{{ host_choice.config_context.dhcp_servers }}"
            dns_servers: "{{ host_choice.config_context.dns_servers }}"
            namespace: "{{ host_choice.config_context.namespace }}"
            gateway: "{{ host_choice.config_context.gateway }}"
        - name: Cluster derived variables 2/2
          set_fact:
            namespace_short: "{{ namespace.split('.')[0] }}"
      when: host_status == 'active'

  tags:
    - init_dp
    - init_ssh

  rescue:
    - name: Check retry counter
      fail:
        msg: "Too many retries - no host is ready"
      when: retry_count | int == 3 and host_status != 'active'

    - debug:
        msg: "{{ host if host is defined }} - {{ host_status if host_status is defined }}"

    - name: Re-evaluate cluster
      include_tasks: "../tasks/netbox_evaluate_cluster.yml"
      when: host_status != 'active'