STEPS TO CREATE HELM CHART

STEP 1: create new helm chart

helm create "chartname"

# demogarage is chart name
helm create demogarage

#to see the chart structure
ls demogarage

• Directory charts – Used for adding dependent charts. Empty by default.
• Directory templates – All kubernetees Configuration files that deploy in the cluster.
• Chart file – Outline of the Helm chart structure.
• values file – Formatting information for configuring the chart

#to see kubernetees objets yamls in templates
ls demogarage/templates

These are deafulat kubernetees yamls in templates

we can create other kuberntees resource yamls as per our application needs

Step 2: Configure Helm Chart values.yaml file

configure image name and image policy

There are three possible values for the pullPolicy:

• IfNotPresent – Downloads a new version of the image if one does not exist in the cluster.
• Always – Pulls the image on every restart or deployment.
• Latest – Pulls the most up-to-date version available.

Step 3: Change Networking Service Type

To change the networking service type, locate the service value and change service type and port values The avaliable service types are

• ClusterIp
• NodePort
• Loadbalancer

Step 4 :Install the Helm Chart

helm install "full name override" "chart name"/ --values "chart name"/values.yaml

  helm install demogarage-chart demogarage/ --values demogarage/values.yaml