Issue #686: Added file for configuring grafana dashboard

Signed-off-by: blesson-james <blesson_james@Dellteam.com>

roles/k8s_start_services/tasks/configure_nginx_prom_grafana.yml

@@ -0,0 +1,82 @@
+#  Copyright 2021 Dell Inc. or its subsidiaries. All Rights Reserved.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+---
+
+- name: Include control_plane_monitoring variables
+  include_vars: "{{ role_path }}/../../control_plane/roles/control_plane_monitoring/vars/main.yml"
+
+- 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: Start and enable nginx service
+  service:
+    name: nginx
+    state: restarted
+    enabled: yes
+
+- 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
+
+- 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: "{{ grafana_username }}"
+    grafana_password: "{{ grafana_password }}"
+    ds_type: prometheus
+    ds_url: "http://{{ ansible_default_ipv4.address }}"
+    access: direct
+  delegate_to: localhost
+  no_log: true