Add basic tests for VM power monitoring metrics (#238)

Added 2 tests:
Test idle VM power monitoring metric is not zero
Test dynamic VM power monitoring metrics are increasing

Author: rsafrono

ci/vars/osp18_env.yml

@@ -6,3 +6,5 @@ stack_flavor: "m1.small"
 stack_network: "private"
 stack_external_network: "public"
 stack_name: "vnf"
+# kepler_test_vm should be created before executing the test suite
+kepler_test_vm: "kepler_test_vm"

roles/telemetry_verify_metrics/tasks/main.yml

@@ -78,3 +78,21 @@
     file: verify_openstack_network_exporter_metrics.yml
   tags: test
   when: '"openstack_network_exporter" in telemetry_verify_metrics_metric_sources_to_test'
+
+- name: Check if kepler test VM is running
+  ansible.builtin.shell: |
+    {{ openstack_cmd }} server show {{ kepler_test_vm }} -c status -f value
+  register: kepler_vm_status
+  ignore_errors: true
+  changed_when: false
+  when: '"kepler_vm" in telemetry_verify_metrics_metric_sources_to_test'
+
+- name: Verify Kepler VM metrics are being exposed and stored
+  ansible.builtin.include_tasks:
+    file: verify_kepler_vm_metrics.yml
+  tags:
+    - test
+    - power_monitoring
+  when: '"kepler_vm" in telemetry_verify_metrics_metric_sources_to_test and "ACTIVE" in kepler_vm_status.stdout'
+  vars:
+    metrics_cmd_prefix: "{{ openstack_cmd }} metric show --disable-rbac -c value -f value"

roles/telemetry_verify_metrics/tasks/verify_kepler_vm_metrics.yml

@@ -0,0 +1,33 @@
+- name: |
+    TEST Check that kepler shows idle power consumption metric for VM and it is not zero
+    RHOSO-13583
+  ansible.builtin.shell: |
+    set -euxo pipefail
+    {{ metrics_cmd_prefix }} "kepler_vm_package_joules_total{'vm_id'='{{ kepler_test_vm }}', 'mode'='idle'}"
+  register: result
+  changed_when: false
+  failed_when: result.rc != 0 or result.stdout|float == 0
+
+- name: |
+    TEST Check that kepler shows dynamic metrics for VM and they are increasing
+    RHOSO-13952
+    Step 1 Get an initial value of VM dynamic metrics and check that it's not zero
+  ansible.builtin.shell: |
+    set -euxo pipefail
+    {{ metrics_cmd_prefix }} "kepler_vm_package_joules_total{'vm_id'='{{ kepler_test_vm }}', 'mode'='dynamic'}"
+  register: value1
+  changed_when: false
+  failed_when: value1.rc != 0 or value1.stdout|float == 0
+
+- name: |
+    TEST Check that kepler shows dynamic metrics for VM and they are increasing
+    RHOSO-13952
+    Step 2 Get a new value of VM dynamic metrics and compare with the initial value
+  ansible.builtin.shell: |
+    set -euxo pipefail
+    {{ metrics_cmd_prefix }} "kepler_vm_package_joules_total{'vm_id'='{{ kepler_test_vm }}', 'mode'='dynamic'}"
+  register: value2
+  delay: 10
+  retries: 3
+  changed_when: false
+  until: value2.rc == 0 and (value2.stdout|float > value1.stdout|float)