Understand the resources.
Learn what Pods, Deployments, Services, and Ingress do. Run commands alongside the lessons and follow a guided repair.
Start the foundations ↗Kubernetes for software engineers
Interactive course / browser labsWhy won’t
your app start
in Kubernetes?
Find out what a failed deployment is telling you. Practice reading Pod status, tracing Service routes, and recovering a release.
Try the free exercise
Runs in your browser.
No account or installation needed.
01 / 24
New to Kubernetes? Start with the free foundations.
Try a routing problem↓
Routing exercise
The Pods are ready. Find the routing errors.
Compare the Service with the application, then change the two incorrect settings.
Service / :80
Application
2 / 2 Pods ready
app: tasks
listener: 8080
0 selected backends
Compare the Service selector and targetPort with the Pod labels and application listener.
This example checks settings only. The full labs include kubectl commands and editable manifests.
14 free lessons
5 incident labs + 5 challenges
$49 for the full pack / one payment
In the practice pack
Five cases / two versions eachWork through the failures
you’ll meet in a deployment.
Each lab starts with a broken application. Use the terminal and manifest editor to investigate, then check the resources you repaired.
0102030405
The silent release
Container startup
Healthy, but unreachable
Service routing
Startup blocked by configuration
Runtime configuration
Running is not ready
Health contracts
Back to a known good state
Release recovery
Each case also has a two-fault challenge. Hints are available throughout.
Service routing
A record of what failed, what changed, and what was checked.
- Observed
- Two Pods ready.
Service selects zero backends. - Cause
- The Service selector uses
task-api. The Pods usetasks. - Repair
- − app: task-api
+ app: tasks - Checked
- ✓ Two ready backends selected
✓ Target port matches the listener
Your downloaded debrief includes your own notes, pinned command output, and simulator check results.
How the course fits together
View the learning path ↗Deploy an application.
Connect a frontend, API, and PostgreSQL database. Use the simulator or follow the supplied source into a local Kubernetes cluster.
View the project ↗Find and fix the failure.
Investigate five incidents and their two-fault challenges. Save your evidence, review YAML changes, and check the repair.
Open the practice studio ↗Kubernetes for Software Engineers
The project, labs,
and workplace field guide.
$49USD / one payment
See what’s includedThe browser exercises simulate resource state. They don’t run containers or send network requests. The optional local project uses a real cluster. Progress is saved in your browser.