---
- name: "Prometheus | Check is Prometheus namespace exists"
  command: "{{bin_dir}}/kubectl get ns {{ prometheus_namespace }}"
  register: prom_ns_check
  changed_when: False
  failed_when: False
  run_once: true

- name: "Prometheus | Create Prometheus namespace"
  command: "{{bin_dir}}/kubectl create namespace {{ prometheus_namespace }}"
  changed_when: False
  when: prom_ns_check|failed
  run_once: true

- name: "Prometheus | Create apps directory"
  file:
    path: "{{ kube_config_dir }}/apps"
    state: directory

- name: "Prometheus | Write prometheus manifests"
  template:
    src: "{{ item.name }}-{{ item.type }}.yml.j2"
    dest: "{{ kube_config_dir }}/apps/{{ item.name }}-{{ item.type }}.yml"
  register: prometheus_templates
  with_items:
    - "{{ prometheus_resources }}"

- name: "Prometheus | Create Prometheus Operator deployment"
  kube:
    filename: "{{ kube_config_dir }}/apps/{{ item.item.name }}-{{ item.item.type }}.yml"
    kubectl: "{{bin_dir}}/kubectl"
    name: "{{ item.item.name }}"
    namespace: "{{ prometheus_namespace }}"
    resource: "{{ item.item.type }}"
    state: "{{ item.changed | ternary('latest','present') }}"
  when: item.item.name == 'prometheus-operator'
  with_items: "{{ prometheus_templates.results }}"
  run_once: true

- name: "Prometheus | Wait for TPRs to become available"
  command: "{{ bin_dir }}/kubectl get {{ item }} --namespace={{ prometheus_namespace }}"
  register: tpr_available
  until: tpr_available.rc == 0
  retries: 10
  delay: "{{ retry_stagger | random + 3 }}"
  with_items:
    - servicemonitor
    - prometheus
    - alertmanager

- name: "Prometheus | Create prometheus resources"
  kube:
    filename: "{{ kube_config_dir }}/apps/{{ item.item.name }}-{{ item.item.type }}.yml"
    kubectl: "{{bin_dir}}/kubectl"
    name: "{{ item.item.name }}"
    namespace: "{{ prometheus_namespace }}"
    resource: "{{ item.item.type }}"
    state: "{{ item.changed | ternary('latest','present') }}"
  when: item.item.name != 'prometheus-operator'
  with_items: "{{ prometheus_templates.results }}"
  run_once: true