Dell-Omnia-Clusters-HPC-AI/roles/k8s_start_services/tasks/configure_nginx_prom_grafana.yml

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---

- name: Install Nginx
  package:
    name: nginx
    state: present
  when: ansible_facts['distribution'] != opensuse_os_name

- name: Install Nginx
  zypper:
    name: nginx
    state: present
  when: ansible_facts['distribution'] == opensuse_os_name

- name: Get prometheus service IP
  command: kubectl get svc -l app=prometheus,component=server -o=jsonpath='{.items[0].spec.clusterIP}'
  changed_when: false
  register: prometheus_svc_ip

- name: Configure nginx.conf (1/2)
  replace:
    path: "{{ role_path }}/templates/nginx.conf.j2"
    regexp: '        server_name  .*'
    replace: "        server_name  {{ ansible_default_ipv4.address }};"
  delegate_to: localhost

- name: Configure nginx.conf (2/2)
  replace:
    path: "{{ role_path }}/templates/nginx.conf.j2"
    regexp: '          proxy_pass http://.*'
    replace: "          proxy_pass http://{{ prometheus_svc_ip.stdout }};"
  delegate_to: localhost

- name: Load nginx conf
  template:
    src: nginx.conf.j2
    dest: "{{ nginx_conf_file_path }}"
    mode: "{{ nginx_conf_file_mode }}"

- name: Validate nginx conf file
  command: nginx -t
  changed_when: false

- name: Start and enable nginx service
  service:
    name: nginx
    state: restarted
    enabled: yes

- block:
    - name: Create prometheus datasource in grafana
      community.grafana.grafana_datasource:
        name: "hpc-prometheus-{{ ansible_default_ipv4.address }}"
        grafana_url: "http://{{ grafana_svc_ip }}:{{ grafana_svc_port }}"
        grafana_user: "{{ hostvars['127.0.0.1']['grafana_username'] }}"
        grafana_password: "{{ hostvars['127.0.0.1']['grafana_password'] }}"
        ds_type: prometheus
        ds_url: "http://{{ ansible_default_ipv4.address }}:{{ nginx_listen_port }}"
        access: direct
      delegate_to: localhost
      no_log: true
      register: create_k8s_prom_datasource
  rescue:
    - name: Create prometheus datasource in grafana failed
      fail:
        msg: "Error: {{ create_k8s_prom_datasource.msg }}"