Kubernetes. From 0 to Production-Grade with Java
summary
Walks through building a Quarkus Java backend that emits device events to Kafka, persists to Postgres (testcontainers locally), and containerizes with Docker or Quarkus image build before pushing to a registry. Generates Kubernetes YAML, wires up readiness/liveness/startup probes via SmallR/MicroProfile health, mounts configMap and Secret, creates service account/roleBinding, sets resource requests/limits and JVM memory opts, and adds OpenTelemetry/micrometer for observability. Demo shows scalable deployment (Kafka + DB pods), Quarkus JVM ~4.3s vs native ms startup, and a live racing game with ~74 players.
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chapters (9)
- 0:00Cloud-native Java intro
- 6:19Java cloud-native projects
- 14:04Containerizing Java app
- 21:46Deploying with YAML
- 24:17Health checks and probes
- 29:11Secrets and dependencies
- 34:52Resource limits for Java
- 41:13Observability and fault tolerance
- 46:12Live demo: racing game in prod
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