Kubernetes - Probes (Liveness, Readiness, and Startup) Overview

Kubernetes-Probes.yaml

apiVersion: v1
kind: Pod
metadata:
  labels:
    app: myapp
  name: myapp
spec:
  containers:
  - name: myapp
    image: k8s.gcr.io/myapp
    livenessProbe:
      httpGet:
        path: /healthz
        port: 8080
        httpHeaders:  # optional
        - name: Custom-Header
          value: Awesome
      initialDelaySeconds: 3
      periodSeconds: 3
    readinessProbe:
      tcpSocket:
        port: 8080
      initialDelaySeconds: 5
      periodSeconds: 10
    startupProbe:
      httpGet:
        path: /healthz
        port: 8080 
        # port: liveness-port, # way-2: for apply to all probes types
      failureThreshold: 30
      periodSeconds: 10