Kubernetes: Job-Ready

Every core Kubernetes object, hands-on, in a practice cluster that behaves like the real thing. Deploy a food-delivery platform: pods, labels, Deployments and rollbacks, DaemonSets, Jobs and CronJobs, ConfigMaps and Secrets, resources, quotas and probes, Services, DNS, Ingress and NetworkPolicies, PVCs and StatefulSets, taints and tolerations, autoscaling, node drains with PodDisruptionBudgets, RBAC and Pod Security, and a troubleshooting playbook, with CKAD/CKA-style exam prep and interview questions.

Learning Outcomes

• Explain how a Kubernetes cluster works: control plane, nodes, and the desired-state loop
• Use kubectl fluently: namespaces, contexts, explain and generating YAML with --dry-run
• Run pods, Deployments, DaemonSets, Jobs, CronJobs and StatefulSets, and know when to use each
• Release with rolling updates and recover a bad release with a rollback
• Configure apps with ConfigMaps and Secrets, resource requests and limits, quotas and health probes
• Expose apps with Services, DNS and Ingress, and fix a Service with no endpoints
• Lock down traffic with NetworkPolicies and workloads with RBAC and Pod Security
• Persist data with PVCs and StorageClasses
• Control scheduling with selectors, taints and tolerations; autoscale with HPA; drain nodes safely with PDBs
• Troubleshoot CrashLoopBackOff, ImagePullBackOff, Pending and not-ready pods, and prepare for CKAD/CKA and interviews