kolla-ansible/ansible/roles/rabbitmq/tasks/precheck.yml

---
- name: Get container facts
  become: true
  kolla_container_facts:
    name:
      - rabbitmq
      - outward_rabbitmq
  register: container_facts

- name: Checking free port for RabbitMQ
  wait_for:
    host: "{{ api_interface_address }}"
    port: "{{ rabbitmq_port }}"
    connect_timeout: 1
    timeout: 1
    state: stopped
  when:
    - container_facts['rabbitmq'] is not defined
    - inventory_hostname in groups['rabbitmq']

- name: Checking free port for RabbitMQ Management
  wait_for:
    host: "{{ api_interface_address }}"
    port: "{{ rabbitmq_management_port }}"
    connect_timeout: 1
    timeout: 1
    state: stopped
  when:
    - container_facts['rabbitmq'] is not defined
    - inventory_hostname in groups['rabbitmq']

- name: Checking free port for RabbitMQ Cluster
  wait_for:
    host: "{{ api_interface_address }}"
    port: "{{ rabbitmq_cluster_port }}"
    connect_timeout: 1
    timeout: 1
    state: stopped
  when:
    - container_facts['rabbitmq'] is not defined
    - inventory_hostname in groups['rabbitmq']

- name: Checking free port for RabbitMQ EPMD
  wait_for:
    host: "{{ api_interface_address }}"
    port: "{{ rabbitmq_epmd_port }}"
    connect_timeout: 1
    timeout: 1
    state: stopped
  when:
    - container_facts['rabbitmq'] is not defined
    - inventory_hostname in groups['rabbitmq']

- name: Check if all rabbit hostnames are resolvable
  vars:
    nss_database: "{{ 'ahostsv4' if api_address_family == 'ipv4' else 'ahostsv6' }}"
  command: "getent {{ nss_database }} {{ hostvars[item]['ansible_hostname'] }}"
  changed_when: false
  register: rabbitmq_hostnames
  with_items: "{{ groups['rabbitmq'] }}"

- name: Check if each rabbit hostname resolves uniquely to the proper IP address
  fail:
    msg: Hostname has to resolve uniquely to the IP address of api_interface
  with_subelements:
    - "{{ rabbitmq_hostnames.results }}"
    - stdout_lines
  when:
    - not item.1 is match('^'+('api' | kolla_address(item.0.item))+'\\b')

- name: Checking free port for outward RabbitMQ
  wait_for:
    host: "{{ api_interface_address }}"
    port: "{{ outward_rabbitmq_port }}"
    connect_timeout: 1
    state: stopped
  when:
    - enable_outward_rabbitmq | bool
    - inventory_hostname in groups['outward-rabbitmq']
    - container_facts['outward_rabbitmq'] is not defined

- name: Checking free port for outward RabbitMQ Management
  wait_for:
    host: "{{ api_interface_address }}"
    port: "{{ outward_rabbitmq_management_port }}"
    connect_timeout: 1
    state: stopped
  when:
    - enable_outward_rabbitmq | bool
    - inventory_hostname in groups['outward-rabbitmq']
    - container_facts['outward_rabbitmq'] is not defined

- name: Checking free port for outward RabbitMQ Cluster
  wait_for:
    host: "{{ api_interface_address }}"
    port: "{{ outward_rabbitmq_cluster_port }}"
    connect_timeout: 1
    state: stopped
  when:
    - enable_outward_rabbitmq | bool
    - inventory_hostname in groups['outward-rabbitmq']
    - container_facts['outward_rabbitmq'] is not defined

- name: Checking free port for outward RabbitMQ EPMD
  wait_for:
    host: "{{ api_interface_address }}"
    port: "{{ outward_rabbitmq_epmd_port }}"
    connect_timeout: 1
    state: stopped
  when:
    - enable_outward_rabbitmq | bool
    - inventory_hostname in groups['outward-rabbitmq']
    - container_facts['outward_rabbitmq'] is not defined

- name: Check if all outward rabbit hostnames are resolvable
  vars:
    nss_database: "{{ 'ahostsv4' if api_address_family == 'ipv4' else 'ahostsv6' }}"
  command: "getent {{ nss_database }} {{ hostvars[item]['ansible_hostname'] }}"
  changed_when: false
  register: outward_rabbitmq_hostnames
  with_items: "{{ groups['outward-rabbitmq'] }}"
  when:
    - enable_outward_rabbitmq | bool

- name: Check if each rabbit hostname resolves uniquely to the proper IP address
  fail:
    msg: Hostname has to resolve uniquely to the IP address of api_interface
  with_subelements:
    - "{{ outward_rabbitmq_hostnames.results }}"
    - stdout_lines
  when:
    - enable_outward_rabbitmq | bool
    - not item.1 is match('^'+('api' | kolla_address(item.0.item))+'\\b')