https://github.com/eficode-academy/kubernetes-katas
Deliberate exercises for Kubernetes
https://github.com/eficode-academy/kubernetes-katas
Last synced: 18 days ago
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Deliberate exercises for Kubernetes
- Host: GitHub
- URL: https://github.com/eficode-academy/kubernetes-katas
- Owner: eficode-academy
- Created: 2018-02-05T11:46:49.000Z (about 7 years ago)
- Default Branch: master
- Last Pushed: 2025-02-13T14:17:15.000Z (3 months ago)
- Last Synced: 2025-03-31T14:07:59.307Z (about 1 month ago)
- Language: Shell
- Size: 753 KB
- Stars: 278
- Watchers: 3
- Forks: 288
- Open Issues: 12
-
Metadata Files:
- Readme: README.md
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README
# kubernetes-katas
[][gitpod]
A selection of [katas][kata-def] for Kubernetes (k8s).
The exercises are ordered in the way we think it makes sense to introduce Kubernetes concepts.
You can find a summary of many of the commands used in the exercises in the
[cheatsheet.md](cheatsheet.md).
> :exclamation: The katas expect that you have access to a kubernetes cluster.
> Please have a look at the [Setup](#setup) section if that is not the case.
> There are plenty of free and easy options.
## Katas in suggested order
- [intro](intro.md)
- [desired-state](desired-state.md)
- [manifests](manifests.md)
- [accessing-your-application](accessing-your-application.md)
- [services](services.md)
- [deployments-ingress](deployments-ingress.md)
- [rolling-updates](rolling-updates.md)
- [configmaps-secrets](configmaps-secrets.md)
- [persistent-storage](persistent-storage.md)
## Setup
There are several ways to get a free Kubernetes cluster for running the exercises.
[Amazon][eks], [Google][gke], [Microsoft][aks] and [Oracle][oke] provide various degrees of free
managed clusters.
Alternatively, you can set up a local cluster with [Docker
Desktop][docker-desktop] or [Kind][kind].
Once you have access to a cluster, the following exercises will help you get setup for running the katas.
- [setup-kubectl-linux](old/exercise_setup/00-setup-kubectl-linux.md) - Skip if
you've already installed `kubectl` and have access to a cluster.
- [setup-namespace](old/exercise_setup/00-setup-namespace.md) - Skip if you've
already created a personal namespace and set it as your default.
### kubectl autocompletion
On Linux, using bash, run the following commands:
```shell
echo "source <(kubectl completion bash)" >> ~/.bashrc
. ~/.bashrc
```
The commands above will enable kubectl autocompletion when you start a new bash session and source
(reload) bashrc i.e. enable kubectl autocompletion in your current session.
See: [Kubernetes.io - Enabling shell autocompletion][autocompletion] for more info.
## Cheatsheet
A collection of useful commands to use throughout the exercises:
```shell
kubectl api-resources # List resource types
kubectl explain # Show information about a resource
kubectl explain deployment
# List resources in cluster
kubectl get # In current namespace
kubectl get -n # In specific namespace
kubectl get --all-namespaces # In all namespaces
kubectl get -o wide # Add extended information
kubectl get -o yaml # output in YAML format
kubectl get -o json # output in JSON format
# Example
kubectl get pods [-n abc|--all-namespaces] [-o wide|yaml|json]
```
See:
[kubectl - Cheat Sheet](https://kubernetes.io/docs/reference/kubectl/cheatsheet/)
for a more extended overview of the `kubectl` command.
[gitpod]: https://gitpod.io/#https://github.com/eficode-academy/kubernetes-katas
[kata-def]: https://en.wikipedia.org/wiki/Kata
[eks]: https://aws.amazon.com/ecs/pricing/
[gke]: https://cloud.google.com/kubernetes-engine/pricing#cluster_management_fee_and_free_tier
[aks]: https://azure.microsoft.com/en-us/pricing/free-services/
[oke]: https://www.oracle.com/cloud/free/#free-cloud-trial
[docker-desktop]: https://docs.docker.com/desktop/
[kind]: https://kind.sigs.k8s.io/
[autocompletion]: https://kubernetes.io/docs/tasks/tools/install-kubectl/#enabling-shell-autocompletion