Load when writing Kubernetes Deployment/Service/Ingress manifests, configuring liveness, readiness, and startup probes for Spring Boot Actuator (/actuator/health/liveness, /actuator/health/readiness), planning blue-green or canary deployments, setting HPA minReplicas/maxReplicas, mapping ConfigMap/Secret to spring.config.import or env vars, implementing graceful shutdown (server.shutdown=graceful, spring.lifecycle.timeout-per- shutdown-phase), or calculating resource requests/limits for JVM workloads.
Two identical environments (blue = current, green = new). Traffic switches atomically; blue stays for instant rollback.
# Service routes via label selector
apiVersion: v1