Set limit == request for memory (#60317)

Author: heiskr

config/kubernetes/default/deployments/webapp.yaml

@@ -31,12 +31,9 @@ spec:
               memory: 8.0Gi
               # Absolute minimum to start app is 4500Mi
               # Would increase with more pages, versions, or languages supported
-              # The additional memory helps during traffic surges
-              # V8 heap is set to 75% of the cgroup memory limit via
-              # --max-old-space-size-percentage in the Dockerfile.
             limits:
               cpu: 8000m
-              memory: 16Gi
+              memory: 8.0Gi
           ports:
             - name: http
               containerPort: 4000

config/kubernetes/production/deployments/webapp.yaml

@@ -34,11 +34,9 @@ spec:
               # Absolute minimum to start app is 4500Mi
               # Would increase with more pages, versions, or languages supported
               # The additional memory helps during traffic surges
-              # V8 heap is set to 75% of the cgroup memory limit via
-              # --max-old-space-size-percentage in the Dockerfile.
             limits:
               cpu: 16000m
-              memory: 16Gi
+              memory: 8.0Gi
           ports:
             - name: http
               containerPort: 4000