Add priority class options to high priority pods

- Add postgres_priority_class
- Add control_plane_priority_class
- Add default requests for postgres pod to ensure at a "Burstable" QoS

config/crd/bases/awx.ansible.com_awxs.yaml

@@ -165,6 +165,9 @@ spec:
                 control_plane_ee_image:
                   description: Registry path to the Execution Environment container image to use on control plane pods
                   type: string
+                control_plane_priority_class:
+                  description: Assign a preexisting priority class to the control plane pods
+                  type: string
                 ee_pull_credentials_secret:
                   description: Secret where pull credentials for registered ees can be found
                   type: string
@@ -392,6 +395,9 @@ spec:
                 postgres_storage_class:
                   description: Storage class to use for the PostgreSQL PVC
                   type: string
+                postgres_priority_class:
+                  description: Assign a preexisting priority class to the postgres pod
+                  type: string
                 postgres_data_path:
                   description: Path where the PostgreSQL data are located
                   type: string

molecule/default/templates/awx_cr_molecule.yml.j2

@@ -25,3 +25,4 @@ spec:
     requests:
       cpu: 200m
       memory: 64M
+  postgres_resource_requirements: {}

roles/installer/defaults/main.yml

@@ -186,6 +186,8 @@ ee_resource_requirements:
 csrf_cookie_secure: False
 session_cookie_secure: False
 
+# Assign a preexisting priority class to the control plane pods
+control_plane_priority_class: ''
 # Add extra environment variables to the AWX task/web containers. Specify as
 # literal block. E.g.:
 # task_extra_env: |
@@ -227,7 +229,12 @@ postgres_storage_requirements:
   requests:
     storage: 8Gi
 postgres_init_container_resource_requirements: {}
-postgres_resource_requirements: {}
+postgres_resource_requirements:
+  requests:
+    cpu: 500m
+    memory: 1Gi
+# Assign a preexisting priority class to the postgres pod
+postgres_priority_class: ''
 postgres_data_path: '/var/lib/postgresql/data/pgdata'
 
 # Persistence to the AWX project data folder

roles/installer/templates/deployment.yaml.j2

@@ -41,6 +41,9 @@ spec:
 {% for secret in image_pull_secrets %}
         - name: {{ secret }}
 {% endfor %}
+{% endif %}
+{% if control_plane_priorityclass is defined %}
+      priorityClassName: '{{ control_plane_priority_class }}'
 {% endif %}
       initContainers:
 {% if bundle_ca_crt or projects_persistence|bool or init_container_extra_commands %}

roles/installer/templates/postgres.yaml.j2

@@ -41,6 +41,9 @@ spec:
 {% for secret in image_pull_secrets %}
         - name: {{ secret }}
 {% endfor %}
+{% endif %}
+{% if postgres_priority_class is defined %}
+      priorityClassName: '{{ postgres_priority_class }}'
 {% endif %}
       initContainers:
         - name: database-check