Helm Package Manager

Install Helm

Helm is a single binary that manages deploying Charts to Kubernetes. A chart is a packaged unit of kubernetes software. It can be downloaded from https://github.com/kubernetes/helm/releases

curl -LO https://storage.googleapis.com/kubernetes-helm/helm-v2.8.2-linux-amd64.tar.gz tar -xvf helm-v2.8.2-linux-amd64.tar.gz mv linux-amd64/helm /usr/local/bin/

Once installed, initialise update the local cache to sync the latest available packages with the environment.

helm init helm repo update

Search For Chart

You can now start deploying software. To find available charts you can use the search command.

For example, to deploy Redis we need to find a Redis chart.

helm search redis

We can identify more information with the inspect command.

helm inspect stable/redis

Deploy Redis

Use the install command to deploy the chart to your cluster.

helm install stable/redis

Helm will now launch the required pods. You can view all packages using helm ls

If you receive an error that Helm could not find a ready tiller pod, it means that helm is still deploying. Wait a few moments for the tiller Docker Image to finish downloading.

In the next step we'll verify the deployment status.

See Results

Helm deploys all the pods, replication controllers and services. Use kubectl to find out what was deployed.

kubectl get all

The pod will be in a pending state while the Docker Image is downloaded and until a Persistent Volume is available.

kubectl apply -f pv.yaml

Redis needs permissions to write chmod 777 -R /mnt/data*

Once complete it will move into a running state. You'll now have a Redis Cluster running on top of Kubernetes.

The helm could be provided with a more friendly name, such as:

helm install --name my-release stable/redis

cd <directory>	Change directory
ls	List directory
echo 'contents' > <file>	Write contents to a file
cat <file>	Output contents of file

i	In Command Mode	Change into Insert Mode, you can now insert and edit text in the file
esc	In Insert Mode	Change into Command Mode, you can now execute commands
:wq	In Command Mode	Save and Exit

Welcome!

Kubernetes - Helm Package Manager

Congratulations!

You've completed the scenario!

Scenario Rating

Steps