Kubernetes Fundamentals

Reconciliation, pods, deployments, services, ingress, config and secrets, requests and limits, probes, storage and RBAC.

12 lessons · about 100 minutes

What you'll go through

• 01You already have containers. Why is that not enough?8 min
• 02Nothing in Kubernetes ever runs your command9 min
• 03Why the smallest unit is not a container8 min
• 04You cannot fix a pod, you can only replace it8 min
• 05Who puts it back when the node disappears8 min
• 06The IP changed and everything kept working8 min
• 07Reaching the cluster from outside it8 min
• 08A Secret is not encrypted, and that surprises everybody8 min
• 09The number you invented decides where your pod runs9 min
• 10The probe says healthy and the users say otherwise9 min
• 11The pod moved to another node and the data stayed behind8 min
• 12You have access to the whole cluster, and that is the problem9 min

Included in this pack

Kubernetes — Containers, the Kubernetes model and how to diagnose a failing cluster. Three courses, 32 lessons.

Also in this pack

Containers

Images, layers, the build cache, volumes, networking and users — and how to build a small image that stops cleanly.

10 lessons · ~80 min$19.90

Kubernetes Troubleshooting

Pending, ImagePullBackOff, CrashLoopBackOff, exit code 137, lying probes, empty Services, cluster DNS, evictions and stuck rollouts.

10 lessons · ~85 min$19.90