___ .______ ______ __ __ .___________.
/ \ | _ \ / __ \ | | | | | |
/ ^ \ | |_) | | | | | | | | | `---| |----`
/ /_\ \ | _ < | | | | | | | | | |
/ _____ \ | |_) | | `--' | | `--' | | |
/__/ \__\ |______/ \______/ \______/ |__|
I took those exercises from a youtube video of Alta3 Research, Inc that you can see here The video contains some good tips aobut kubernetes. I think that these exercises cover multiple topics and are good to improve your Kuberntes knowledge.
- Clone the repository
git clone git@github.com:jsalcedo1987/kubernetes-zero-to-hero.git
- Go inside the directory
cd kubernetes-exercises
-
Before each exercise there is a prepare environment section with a kubernetes yaml that is ready to create the components required for the exercise (namespaces, deployments, pods...).
-
Once you have run the script then you are ready to go ahead with the exercise.
-
Solution for each exercise can be find under the solutions folder.
Contributions are what make this project such an amazing place to be learn, inspire, and create. Any contributions you make are greatly appreciated.
- Fork the Project
- Create your Feature Branch (git checkout -b feature/AmazingFeature)
- Commit your Changes (git commit -m 'Add some AmazingFeature')
- Push to the Branch (git push origin feature/AmazingFeature)
- Open a Pull Request
__________ ___ _______ .______ ______ __ _______. _______ _______.
| ____\ \ / / | ____|| _ \ / || | / || ____| / |
| |__ \ V / | |__ | |_) | | ,----'| | | (----`| |__ | (----`
| __| > < | __| | / | | | | \ \ | __| \ \
| |____ / . \ | |____ | |\ \----.| `----.| | .----) | | |____.----) |
|_______/__/ \__\ |_______|| _| `._____| \______||__| |_______/ |_______|_______/
Team banana is taking over a webserver from Team Pineapple. No one from Pineapple is around anymore, so who knows where this webserver is. The only thing you know is that the container is named banana-boat. Search for the correct pod in namespace pineapple and move it to namespace banana.
⒈ Prepare the environment:
kubectl create -f exercise-1.yaml
2. Link to solution: Link
Create a single pod in namespace default with the image nginx:1.7.9. The pod should be named alphapod and the container should be named alphapod container.
⒈ Prepare the environment:
N/A
2. Link to solution: Link
Missing data has long been a thorn in your company's side. A Tech Lead has whipped up a container named snooper-con in deployment snooper in namespace starfruit. This container mounts a volume and write logs into a file called snooper.log.
Inside this deployment, create a sidecar container named kennylogger-con, image busybox:1.31.0. Save your changes as snooper-new.yaml but also make sure the deployment is running.
⒈ Prepare the environment:
kubectl create -f exercise-3.yaml
2. Link to solution: Link
In namespace coconut there is a single pod named watermelon. Convert the pod into a deployment with 5 replicas and deployment name watermelonslice.
Create the deployment and save its YAML under watermelon-deployment.yaml.
⒈ Prepare the environment:
kubectl create -f exercise-4.yaml
2. Link to solution: Link
There is an existing deployment named lemon in namespace banana. Apparently the current version is broken. Check the deployment history and rollback to a version that actually works.
⒈ Prepare the environment:
kubectl create -f exercise-5.yaml
kubectl set image deployment/lemon nginx=nginx:error24 -n banana
2. Link to solution: Link
Team banana needs a job template located at bananajob.yaml. This job should execute the commands sleep 2 && echo done on image busybox:1.31.0 in namespace banana. Make it execute 3 pods in parallel for 5 total completions.
Every pod generated by bananajob should have the label eatyour: bananas. The job should be named bananajob and the container named banana-bin.
⒈ Prepare the environment:
N/A
2. Link to solution: Link
Team melon needs to identify some of their pods in namespace basket. They ask you to add a new labbel safe:sound to all pods with an existing label type:citrus or type:seedless. All pods with the label safe:sound will then be given the annotation fruit:good for what ails ya
⒈ Prepare the environment:
kubectl create -f exercise-7.yaml
2. Link to solution: Link
Create a new PersistenVolume named strawberry-pv. It should have a capacity og 2Gi, accessMode ReadWriteOnce, hostPath /Data/Berry and the storageClass exam.
Next create a new PersistentVolumeClaim named strawberry-pvc in namespace straw. It should request 1Gi storage, accessMode ReadWriteOnce, with storageClass exam. The PVC and PV should bind.
FInally create a new deployment named strawberry-deploy in namespace straw. Mount strawberry-pvc as a volume /tmp/berry-data. The pods of that deployment should be of image nginx:1.7.9.
⒈ Prepare the environment:
N/A
2. Link to solution: Link
Create a ConfigMap called configmap-kiwi containing the file web-kiwi.html.
The deployment kiwi-deploy is already set up to work with this ConfigMap. Confirm that the containers are now running.
⒈ Prepare the environment:
kubectl create -f exercise-9.yaml
2. Link to solution: Link
Create a pod called nginx with the image nginx:1.7.9 which forces all processes to run with user ID 1000 and with group ID 2000. Set privilege scalation to false.
⒈ Prepare the environment:
N/A
2. Link to solution: Link
Create a deployment named apple-deploy with 4 replicas and the image nginx:1.7.9. The containers should be named apple-bin. Each container should have a memory request of 15Mi and memory limit of 30Mi.
⒈ Prepare the environment:
N/A
2. Link to solution: Link
You will adjust an existing pod named kiwi-secret-pod in namespace kiwi. Make a new secret named juicysecret. It must contain the key/values user=kiwis and pass=aredelicious. Make this content available in the pod kiwi-secret-pod as environment variables USERKIWI and PASSKIWI*.
⒈ Prepare the environment:
kubectl create -f exercise-12.yaml
2. Link to solution: Link
Create a deployment named banana-peel with 2 pods of image nginx:1.9.1.
Team banana has its own ServiceAccount mega-banana-v5. Make the banana-peel deployment's pods run under this ServiceAccount. The deployment should be in namespace banana.
⒈ Prepare the environment:
kubectl create -f exercise-13.yaml
2. Link to solution: Link
Create a single pod named plumpod in namespace plum of image busybox:1.31.0. Add a readiness probe to this container executing cat /tmp/plumpplum. The probe should initially wait 3 seconds and thereafter wait 6 seconds.
⒈ Prepare the environment:
kubectl create -f exercise-14.yaml
2. Link to solution: Link
Create a pod named grapes and image busybox:1.31.0 with the command: "echo I am ape for grapes; sleep 3600". Copy the logs of the above pod to the pre-made file grape-logs.txt.
⒈ Prepare the environment:
N/A
2. Link to solution: Link
Get the CPU usage of all pods in the default namespace. Find which pod has the highest CPU usage and write that pod name to the pre-made file cpu-consume.txt file.
⒈ Prepare the environment:
N/A
2. Link to solution: Link
You have used misguided judgement and created a Deployment that is expecting to have three Pods available inside of a namespace called fail01. Look at your deployment that is currently running in that namespace. Fix the deployment so that all three expected replicas are running.
⒈ Prepare the environment:
kubectl create -f exercise-17.yaml
2. Link to solution: Link
Team Coconut needs a service named project-paradise-svc in namespace coconut. The service should use TCP port redirection of 3423:80. This service should expose a single pod named lone-coconut of image nginx:1.9.1 with the label coconuts=migrate (you'll need to create this pod yourself).
⒈ Prepare the environment:
N/A
2. Link to solution: Link
In namespace cherry you'll find two deployments named pit and stem. Both deployments are exposed via a service. Make a NetworkPolicy named cherry-control that prevents outgoing traffic from deployment pit except to that of deployment stem.
⒈ Prepare the environment:
kubectl create -f exercise-19.yaml
2. Link to solution: Link