---

# updates prometheus config in case of adding/removing server via smardigo

# Parameters:
#   playbook inventory
#     stage := the type of the stage (e.g. dev, int, qa, prod)
#     tenant_id := (unique key for the tenant, e.g. customer)
#     cluster_name := (business name for the cluster, e.g. product, department )
#     cluster_size := (WIP node count for the cluster) (Currently max is 2 master/slave)
#     cluster_services_str := (services to setup, e.g. 'connect,wordpress')
#   smardigo message callback
#     scope_id := (scope id of the management process)
#     process_instance_id := (process instance id of the management process)
#     smardigo_management_action := (smardigo management action anme of the management process)

#############################################################
#   Creating inventory dynamically for given parameters
#############################################################

- hosts: localhost
  gather_facts: false
  connection: local

  pre_tasks:
    - name: "Check if ansible version is at least 2.10.x"
      assert:
        that:
          - ansible_version.major >= 2
          - ansible_version.minor >= 10
        msg: "The ansible version has to be at least ({{ ansible_version.full }})"
      tags:
      - always

    - set_fact:
        cluster_services: "{{ cluster_services_str | split(',') }}"
      tags:
      - always

  tasks:
    - name: Add prometheus servers to hosts if necessary
      add_host:
        name: "{{ stage }}-prometheus-01"
        groups:
        - "stage_{{ stage }}"
        - "{{ item }}"
      changed_when: False
      with_items: "{{ cluster_services }}"
      tags:
      - always

#############################################################
# update monitoring
#############################################################

- hosts: "stage_{{ stage }}"
  serial: "{{ serial_number | default(1) }}"
  remote_user: root
  vars:
    ansible_ssh_host: "{{ stage_server_domain }}"

  pre_tasks:
    - name: "Import autodiscover pre-tasks"
      include_tasks: tasks/autodiscover_pre_tasks.yml
      tags:
      - always

    - name: "Parsing cluster_services_str into cluster_services"
      set_fact:
        cluster_services: "{{ cluster_services_str | split(',') }}"
      tags:
      - always

  tasks:
    - include_role:
        name: prometheus
      tags:
      - always

#############################################################
# Sending smardigo management message to process
#############################################################

- hosts: "stage_{{ stage }}"
  serial: "{{ serial_number | default(1) }}"
  gather_facts: false
  connection: local
  run_once: true

  tasks:
    - name: "Sending smardigo management message <{{ smardigo_management_action }}> to <{{ scope_id }}/{{ process_instance_id }}>"
      uri:
        url: "{{ smardigo_management_url }}"
        method: POST
        body_format: json
        body: "{{ lookup('template','smardigo-management-message.json.j2') }}"
        headers:
          accept: "*/*"
          Content-Type: "application/json"
          Smardigo-User-Token: "{{ smardigo_management_token }}"
        status_code: [200]
      delegate_to: 127.0.0.1
      retries: 5
      delay: 5
      when:
        - scope_id is defined
        - process_instance_id is defined
        - smardigo_management_action is defined
      tags:
      - always