Issue #214: Updated to configure prometheus with slurm exporter

Signed-off-by: DeepikaKrishnaiah <deepika_k2@dell.com>

appliance/roles/common/tasks/password_config.yml

@@ -229,3 +229,76 @@
     ansible-vault encrypt {{ input_config_filename }}
     --vault-password-file {{ vault_filename }}
   changed_when: false
+
+- name: Check if omnia_vault_key exists
+  stat:
+    path: "{{ role_path }}/../../../{{ config_vaultname }}"
+  register: vault_key_result
+
+- name: Create ansible vault key if it does not exist
+  set_fact:
+    vault_key: "{{ lookup('password', '/dev/null chars=ascii_letters') }}"
+  when: not vault_key_result.stat.exists
+
+- name: Save vault key
+  copy:
+    dest: "{{ role_path }}/../../../{{ config_vaultname }}"
+    content: |
+      {{ vault_key }}
+    owner: root
+    force: yes
+  when: not vault_key_result.stat.exists
+
+- name: Check if omnia config file is encrypted
+  command: cat {{ role_path }}/../../../{{ config_filename }}
+  changed_when: false
+  register: config_content
+  no_log: True
+
+- name: Decrpyt omnia_config.yml
+  command: >-
+    ansible-vault decrypt {{ role_path }}/../../../{{ config_filename }}
+    --vault-password-file {{ role_path }}/../../../{{ config_vaultname }}
+  when: "'$ANSIBLE_VAULT;' in config_content.stdout"
+
+- name: Include variable file omnia_config.yml
+  include_vars: "{{ role_path }}/../../../{{ config_filename }}"
+  no_log: True
+
+- name: Validate input parameters are not empty
+  fail:
+    msg: "{{ input_config_failure_msg }}"
+  register: input_config_check
+  when:
+    - mariadb_password | length < 1 or
+      k8s_cni | length < 1
+
+- name: Assert mariadb_password
+  assert:
+    that:
+        - mariadb_password | length > min_length | int - 1
+        - mariadb_password | length < max_length | int + 1
+        - '"-" not in mariadb_password '
+        - '"\\" not in mariadb_password '
+        - '"\"" not in mariadb_password '
+        - " \"'\" not in mariadb_password "
+    success_msg: "{{ success_msg_mariadb_password }}"
+    fail_msg: "{{ fail_msg_mariadb_password }}"
+
+- name: Assert kubernetes cni
+  assert:
+    that: "('calico' in k8s_cni) or ('flannel' in k8s_cni)"
+    success_msg: "{{ success_msg_k8s_cni }}"
+    fail_msg: "{{ fail_msg_k8s_cni }}"
+
+- name: Save input variables from file
+  set_fact:
+    db_password: "{{ mariadb_password }}"
+    k8s_cni: "{{ k8s_cni }}"
+  no_log: True
+
+- name: Encrypt input config file
+  command: >-
+    ansible-vault encrypt {{ role_path }}/../../../{{ config_filename }}
+    --vault-password-file {{ role_path }}/../../../{{ config_vaultname }}
+  changed_when: false

appliance/roles/common/vars/main.yml

@@ -80,3 +80,9 @@ min_length: 8
 max_length: 30
 nic_min_length: 3
 vault_filename: .vault_key
+config_filename: "omnia_config.yml"
+config_vaultname: .omnia_vault_key
+fail_msg_mariadb_password: "maria_db password not given in correct format."
+success_msg_mariadb_password: "mariadb_password validated"
+success_msg_k8s_cni: "Kubernetes CNI Validated"
+fail_msg_k8s_cni: "Kubernetes CNI not correct."

appliance/roles/inventory/tasks/main.yml

@@ -56,7 +56,7 @@
       command: >-
         ansible-vault encrypt {{ input_config_filename }}
         --vault-password-file {{ vault_filename }}
-      when: "'$ANSIBLE_VAULT;' not in config_content.stdout"
+      changed_when: false
 
     - name: Check if inventory file already exists
       stat:

roles/cluster_validation/tasks/fetch_password.yml

@@ -83,4 +83,4 @@
   command: >-
     ansible-vault encrypt {{ role_path }}/../../{{ config_filename }}
     --vault-password-file {{ role_path }}/../../{{ config_vaultname }}
-  when: "'$ANSIBLE_VAULT;' not in config_content.stdout"
+  changed_when: false

roles/slurm_exporter/tasks/configure_prometheus_pod.yml

@@ -13,6 +13,31 @@
 #  limitations under the License.
 ---
 
+- name: Copy the slurm exporter config file
+  copy:
+    src: "{{ slurm_config_file }}"
+    dest: "{{ installation_dir }}"
+    owner: root
+    group: root
+    mode: "{{ file_permission }}"
+
+- name: Add the host IP to config file
+  lineinfile:
+    dest: "{{ installation_dir }}/{{ slurm_config_file }}"
+    regexp: "http:"
+    insertafter: "- targets"
+    line: "        - http://{{ inventory_hostname }}:8080/metrics"
+    state: present
+    backup: yes
+    backrefs: yes
+
+- name: Verify if slurm exporter is already configured
+  command: kubectl get service prometheus-slurmexporter-metrics-2
+  register: service_status
+  changed_when: False
+  ignore_errors: yes
+
 - name: Apply slurm exporter configuration to prometheus
-  command: kubectl apply -f "{{ role_path }}/files/{{ slurm_config_file }}" --validate=false
-  changed_when: False
+  command: kubectl apply -f "{{ installation_dir }}/{{ slurm_config_file }}" --validate=false
+  changed_when: true
+  when: "'Error from server (NotFound)' in service_status.stderr"

roles/slurm_manager/vars/main.yml

@@ -25,6 +25,7 @@ slurm_packages:
    - perl-DBI
    - perl-Switch
    - libibumad
+   - git
 
 dev_tools:
    - rrdtool-devel