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Application Observability and Maintenance

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Practice Drill

The pod defined in the problem.yaml below creates a pod meant to run a perpetual tail command in the busybox image. The pod,...

Debugging

Debugging running applications in Kubernetes starts by retrieving simple status information about the pods.Here are a few places to start looking:...

Monitoring Applications

For the CKAD exam, the scope of monitoring applications is only within the scope of Kubernetes (including the Kubernetes metrics server). Key...

Container Logging

Kubernetes retrieves container logs from a container’s standard output and standard error streams. The applications running in the container must...

Liveness Probes and Readiness Probes

A liveness probe is a health check that tells a kubelet when to restart a container. Liveness probes help catch locks where an application seems to...

Understand API Deprecations

As an ongoing project, new features will move through various stages of maturity as Kubernetes continues to grow. Every feature is served by a new...