Generate, don't type

25 min hands-on · Core

Browser Kubernetes (Killercoda 1-node) or Play-with-Kubernetes; no local installs.

Two ways to do this lab: in your browser on Killercoda (free, no install), or on Play-with-Kubernetes as a free practice field. The Killercoda button opens in a new tab; this study page stays here. Killercoda runs one free scenario at a time: if you see a waiting queue, close other Killercoda tabs and wait a minute.

Objectives

Generate Pod, Deployment and Service YAML from imperative commands
Edit only the differing fields inside valid generated structure
Validate with dry-run before every real apply

Step 1
Three files, zero typing
Produce Pod, Deployment and Service manifests using only `kubectl create ... -o yaml --dry-run=client` redirected to files. Hand-typing YAML is forbidden this round.
Step 2
Edit the difference
Add resource requests and one environment variable to the Deployment file. Apply with `--dry-run=client` first for validation, then for real, and verify the running pod carries both.

How to confirm it worked

Three manifests generated, zero hand-typed
Dry-run validation run before the real apply
Resources and env var confirmed on the live pod

Objectives

Three files, zero typing

Edit the difference

How to confirm it worked