Helm Lab📜

Lab Overview📜

In this lab we will install Helm CLI tool, add helm repository, use helm CLI tool to template kubernetes .yaml files.

Install the Helm CLI

mkdir -p ~/Desktop/configlabs
cd ~/Desktop/configlabs
curl https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 | bash

Add a helm chart repository

helm repo add oteemocharts https://oteemo.github.io/charts

Update your local helm repositories
```
helm repo update
```
Template out to a single file verify that you are in the correct directory (should be ~/Desktop/configlabs)
```
pwd 
helm template oteemocharts/sonarqube > generated.yaml
```
View contents of the generated file
```
cat generated.yaml 
```
This file should have Secret, ConfigMap, Service, Deployment, StatefulSet, and pod objects.
These kubernetes object files are all in one single .yaml file separated by --- file deliminator

To view the individual kubernetes objects
```
cat generated.yaml | grep -i kind:
```
Your output should look like this:
```
kind: Secret
kind: ConfigMap
kind: ConfigMap
kind: ConfigMap
kind: ConfigMap
kind: ConfigMap
kind: Service
kind: Service
kind: Service
kind: Deployment
kind: StatefulSet
kind: Pod
```
Template out to multiple files

Another way to generate would be to a directory, this allows us to have a more manageable way to view all the resources needed for an application
```
helm template sonar oteemocharts/sonarqube --output-dir generated
```
View files created
```
ls -R generated
```
This will have all the same contents, just split up over the different files