Add CPU limit to PostgreSQL container

The PostgreSQL container was missing a CPU limit while having memory
limits set. Add CPU limit of 500m to match the approach of ensuring
all containers have both CPU and memory limits defined.

Author: omkarjoshi0304

internal/controller/postgres_deployment.go

@@ -149,6 +149,7 @@ func buildPostgresPodTemplateSpec() corev1.PodTemplateSpec {
 							corev1.ResourceMemory: resource.MustParse("300Mi"),
 						},
 						Limits: corev1.ResourceList{
+							corev1.ResourceCPU:    resource.MustParse("500m"),
 							corev1.ResourceMemory: resource.MustParse("2Gi"),
 						},
 					},

test/kuttl/common/openstack-lightspeed-instance/assert-openstack-lightspeed-instance.yaml

@@ -41,6 +41,18 @@ kind: Deployment
 metadata:
   name: lightspeed-postgres-server
   namespace: openstack-lightspeed
+spec:
+  template:
+    spec:
+      containers:
+        - name: lightspeed-postgres-server
+          resources:
+            requests:
+              cpu: 30m
+              memory: 300Mi
+            limits:
+              cpu: 500m
+              memory: 2Gi
 status:
   replicas: 1
   readyReplicas: 1

test/kuttl/tests/update-openstacklightspeed/08-assert-openstacklightspeed-update.yaml

@@ -23,6 +23,18 @@ kind: Deployment
 metadata:
   name: lightspeed-postgres-server
   namespace: openstack-lightspeed
+spec:
+  template:
+    spec:
+      containers:
+        - name: lightspeed-postgres-server
+          resources:
+            requests:
+              cpu: 30m
+              memory: 300Mi
+            limits:
+              cpu: 500m
+              memory: 2Gi
 status:
   replicas: 1
   readyReplicas: 1