Kubernetes for Beginners

Build your first Kubernetes pod, verify cluster readiness with kubectl, pull deployment files from a repo, deploy a web server pod, and inspect its status and ports.

Explore creating a Kubernetes pod manifest with metadata, container name, image, image pull policy, and a custom command to keep the container running using sleep.

Explore creating and managing Kubernetes pods with kubectl, bridging a web server and a browser pod, checking IPs and ports, testing connectivity, and deleting resources.

Explore a multi-container pod demo in Kubernetes, launching containers, exposing port 80, viewing logs, and validating inter-container communication through kubectl commands.

Explore how replica sets maintain a specified number of pods at scale by using a pod template, labels, and a selector, with kubectl commands to create and verify the set.

Create a deployment object named web server and verify a healthy cluster. Inspect the deployment with kubectl, including its three replicas and ports.

Learn to verify cluster health, scale a deployment from three to four replicas, inspect pods and events, and delete deployments, while understanding the default rolling update strategy in Kubernetes.

Explore rolling update strategies for Kubernetes, including configuring deployment parameters, readiness probes, and rollback history in a practical web server deployment.

Demonstrates a rolling update on a Kubernetes deployment, tracking old and new replica sets, verifying replicas, and validating service routing to updated replicas with rollout status.

Learn to roll back a failed Kubernetes deployment after a rolling update using kubectl rollout status, rollout history, and rollout undo, with options to revert to the previous or a specific revision.

Explore how Kubernetes services route traffic to pods with ClusterIP, NodePort, and LoadBalancer, and create a simple port and labeled deployment wired to a service.

Understand cluster IP services in Kubernetes, routing traffic to pods via selectors and a virtual IP. Learn to create, view, and inspect the service and its endpoints with kubectl.

Create and inspect a cluster IP service with kubectl, view its endpoints and allocated cluster IP, and verify that external clients cannot access the internal service.

Configure a fixed NodePort in a Kubernetes NodePort service to replace dynamic ports, enabling external clients to reach the app via node IP and the specified port.

Explore a Kubernetes fixed node port service demo. Create and select a web service, assign a fixed port (31080), describe the service, and clean up the resources.

Create three web server pods with different images, label them for selection, expose ports, and apply a load balancer service, then verify all pods are running.

demonstrates creating a load balancer service with a selector for apps, exposing three apps across three nodes with a single external IP on Google Kubernetes Engine.

Explore how to create and test a Kubernetes load balancer service, expose multiple apps on distinct ports, observe cluster IP and node port details, and verify load balancing behavior.