Helm Install

Step-01: Introduction

• We will use the following commands as part of this demo
• helm repo list
• helm repo add
• helm repo update
• helm search repo
• helm install
• helm list
• helm uninstall

Step-02: List, Add and Search Helm Repository

• Bitnami Applications packaged using Helm
• Search for Helm Charts at Artifacthub.io

# List Helm Repositories
helm repo list

# Add Helm Repository
helm repo add <DESIRED-NAME> <HELM-REPO-URL>
helm repo add mybitnami https://charts.bitnami.com/bitnami

# List Helm Repositories
helm repo list

# Search Helm Repository
helm search repo <KEY-WORD>
helm search repo nginx
helm search repo apache
helm search repo wildfly

Step-03: Install Helm Chart

• Installs the Helm Chart

# Update Helm Repo
helm repo update  # Make sure we get the latest list of charts

# Install Helm Chart
helm install <RELEASE-NAME> <repo_name_in_your_local_desktop/chart_name>
helm install mynginx mybitnami/nginx

Step-04: List Helm Releases

• This command lists all of the releases for a specified namespace

# List Helm Releases (Default Table Output)
helm list 
helm ls

# List Helm Releases (YAML Output)
helm list --output=yaml

# List Helm Releases (JSON Output)
helm list --output=json

# List Helm Releases with namespace flag
helm list --namespace=default
helm list -n default

Step-05: List Kubernetes Resources

# List Kubernetes Pods
kubectl get pods

# List Kubernetes Services
kubectl get svc
Observation: Review the EXTERNAL-IP field and you will see it as localhost. Access the nginx page from local desktop localhost

# Access Nginx Application on local desktop browser
http://localhost:80
http://127.0.0.1:80

# Access Application using curl command
curl http://localhost:80
curl http://127.0.0.1:80

Step-06: Uninstall Helm Release - NO FLAGS

# List Helm Releases
helm ls

# Uninstall Helm Release
helm uninstall <RELEASE-NAME>
helm uninstall mynginx