Category · DevOps

Kubernetes without the magic

What an orchestrator does and how to talk to it. Course plan: 1. What Kubernetes solves: cluster, control plane, nodes, kubectl. 2. Pod and Deployment: replicas, rolling update, rollback. 3. Service and Ingress. 4. ConfigMap and Secret. 5. Probes, requests and limits, HPA. 6. Helm: packaging manifests. 7. StatefulSet and storage: PersistentVolume, databases in the cluster. 8. Namespaces and RBAC. 9. GitOps with Argo CD. The first five lessons are available now, the rest are coming soon.

5 lessons63 min

Topics, each as its own lesson

01What Kubernetes solves: cluster, control plane, nodes and kubectlDemo

You describe the desired state in YAML, and the cluster brings reality in line with it.

12 min02Pod and Deployment: replicas, rolling update, rollback

A Pod is short lived. A Deployment makes sure the right number is always running.

13 min03Service and Ingress: how traffic reaches a Pod

ClusterIP, NodePort, LoadBalancer, ingress controller and DNS inside the cluster.

13 min04Configuration: ConfigMap and Secret

One image for every environment, settings kept apart. And why base64 is not encryption.

11 min05Health and resources: probes, requests, limits, HPA

How Kubernetes knows the app is alive, and how much CPU and memory to give it.

14 min

0/5 topics open. This is the course intro, not the whole course on one page.