Health Checks: Liveness, Readiness, and Startup Probes
Use Kubernetes probes to detect unhealthy containers, gate traffic until apps are ready, and give slow starters time to boot.
Why Probes Matter
Kubernetes cannot know your app is healthy just because the process is running. Probes let you tell the kubelet how to check real application health.
The Three Probe Types
There are three: liveness (restart if broken), readiness (gate traffic), and startup (protect slow boots).
All lessons in this course
- Kubernetes Logging Strategies
- Monitoring with Prometheus & Grafana
- Troubleshooting Common K8s Issues
- Health Checks: Liveness, Readiness, and Startup Probes