express-status-app

An Express JS app with an endpoint (/status) that changes it's output after STATUS_INTERVAL_SECONDS (5min default).

$ curl http://localhost:3000/status
{"status":"OK"}

after STATUS_INTERVAL_SECONDS or 5 minutes

$ curl http://localhost:3000/status
{"status":"ERROR"}

To test in the K8s environment, run following pod

apiVersion: v1
kind: Pod
metadata:
  name: mypod
spec:
  containers:
  - name: netshoot
    image: nicolaka/netshoot
    command: ['sh', '-c', 'while true; do sleep 3600; done']  # Keep the container running
  - name: express-status-app-container
    image: ghcr.io/vikram-katkar-discovery/express-status-app:main
    env:
      - name: STATUS_INTERVAL_SECONDS
        value: "300"
    ports:
    - containerPort: 3000

Login to the container and curl the endpoint

kubectl exec -it mypod -c netshoot -- sh

curl http://localhost:3000/status