Kubernetes Application Developer Certification

Master Kubernetes pods: understand single and multi-container setups, their shared networking and storage, and the pod lifecycle from pending to unknown.

Learn how replica sets in Kubernetes maintain the desired number of pods using templates and selectors, and how to create, view, edit, and delete them.

Learn how to create, manage, and update Kubernetes deployments with zero downtime using replica sets, rollout, canary strategies, and rollback. Explore practical commands and YAML configurations.

Learn how Kubernetes services expose a pod group via cluster IP, node port, and load balancer, using selectors to route traffic and provide stable access even as pod IPs change.

Learn how Kubernetes ingress uses an ingress controller, typically nginx, to route external traffic via a single load balancer using DNS, host, and path rules.

Discover how namespaces isolate deployments and services within a cluster, enable cross-namespace access via DNS, and enforce resource quotas and access controls.

Explore how to use environment variables, configmaps, and secrets in Kubernetes to separate configuration data from code, and securely manage credentials with base64 encoding and deployment references.

Explore volumes, persistent volumes, and persistent volume claims in Kubernetes, and learn static and dynamic provisioning with storage classes, including pod mounting and binding via kubectl.

Explore stateful sets in Kubernetes, including headless services, stable pod identities, creation order, and per-pod storage with pvcs and pvs to ensure data replication for databases during scale and failover.