Various OpenShift resource limit tweaks

* Decrease COMS max pod count to avoid saturating the shared Postgres connection pool
* Remove CPU/memory limits on Postgres pods
* Enable pod autoscaling in DEV and PR

Author: norrisng-bc

.github/environments/values.dev.yaml

@@ -5,9 +5,9 @@ features:
   oidcAuth: true
 
 autoscaling:
-  enabled: false
+  enabled: true
 pdb:
-  enabled: false
+  enabled: true
 
 config:
   enabled: true

.github/environments/values.pr.yaml

@@ -3,6 +3,11 @@ features:
   basicAuth: true
   oidcAuth: true
   defaultBucket: false
+
+autoscaling:
+  enabled: true
+pdb:
+  enabled: true
 #
 #
 # We don't deploy a postgrescluster for PR's

.github/environments/values.prod.yaml

@@ -48,9 +48,6 @@ postgres:
         requests:
           cpu: 256m
           memory: 512Mi
-        limits:
-          cpu: 512m
-          memory: 1024Mi
       sidecars:
         replicaCertCopy:
           resources:

.github/environments/values.test.yaml

@@ -49,9 +49,6 @@ postgres:
         requests:
           cpu: 256m
           memory: 512Mi
-        limits:
-          cpu: 512m
-          memory: 1024Mi
       sidecars:
         replicaCertCopy:
           resources:

charts/coms/values.yaml

@@ -45,7 +45,7 @@ autoscaling:
   enabled: false
 
   minReplicas: 3
-  maxReplicas: 8
+  maxReplicas: 6
   targetCPUUtilizationPercentage: 80
 
 # pod disruption budget.