---

- name: Deploy Prometheus on OpenShift
  hosts: itix
  become: yes
  vars:
    itix_openshift_docker_images_repo_url: https://github.com/nmasse-itix/OpenShift-Docker-Images.git
    itix_prometheus_project: openshift-metrics
    itix_grafana_route: grafana.{{ openshift_master_default_subdomain }}
    itix_prometheus_route: prometheus.{{ openshift_master_default_subdomain }}
    itix_alerts_route: prometheus-alerts.{{ openshift_master_default_subdomain }}
  tasks:
  - name: Create a temporary directory
    tempfile:
      state: directory
    register: tempfile

  - name: Clone the nmasse-itix/OpenShift-Docker-Images GIT repository
    git:
      repo: '{{ itix_openshift_docker_images_repo_url }}'
      dest: '{{ tempfile.path }}'
      version: '{{ itix_openshift_docker_images_repo_tag|default(''master'') }}'

  - name: Process the grafana-prometheus-storage template
    command: oc process -f '{{ tempfile.path }}/grafana/grafana-prometheus-storage.yaml' -p 'NAMESPACE={{ itix_prometheus_project }}'
    register: oc_process

  - set_fact:
      grafana_prometheus_storage: '{{ oc_process.stdout }}'

  - name: Process the grafana-prometheus template
    command: oc process -f '{{ tempfile.path }}/grafana/grafana-prometheus.yaml' -p 'NAMESPACE={{ itix_prometheus_project }}' -p 'PROMETHEUS_ROUTE_HOSTNAME={{ itix_prometheus_route }}' -p 'ALERTS_ROUTE_HOSTNAME={{ itix_alerts_route }}'
    register: oc_process

  - set_fact:
      grafana_prometheus: '{{ oc_process.stdout }}'

  - name: Process the grafana-base template
    command: oc process -f '{{ tempfile.path }}/grafana/grafana-base.yaml' -p 'NAMESPACE={{ itix_prometheus_project }}' -p 'GRAFANA_ROUTE_HOSTNAME={{ itix_grafana_route }}'
    register: oc_process

  - set_fact:
      grafana_base: '{{ oc_process.stdout }}'

  - name: Create the objects
    command: oc create -f -
    args:
      stdin: '{{ item|to_json }}'
    register: oc
    failed_when: oc.rc > 0 and 'Error from server (AlreadyExists):' not in oc.stderr
    changed_when: oc.rc == 0
    with_items:
      - '{{ grafana_prometheus_storage }}'
      - '{{ grafana_prometheus }}'
      - '{{ grafana_base }}'

  - name: Delete the temporary directory
    file:
      path: '{{ tempfile.path }}'
      state: absent