Test

Build with mvn clean package jib:dockerBuild.

Deploy to k8s: kubectl apply -f pod.yaml

Inspect kubernetes metrics with kubectl top pod.

Inspect resource usage inside the pod with kubectl exec --stdin --tty kubernetes-resource-usage -- sh

Results

Node's CPU cores: 4

Request	Limit	Java CPU Cores
0.1	-	1
2	-	2
2	4	4

Request: spec > containers > resources > request

Limit: spec > containers > resources > limit

Java CPU Cores: Runtime.getRuntime().availableProcessors()