helm

What's in this folder?

Demo how to use Terraform Helm provider to install Helm Chart

Prerequisites

• Kubernetes 1.19+
• Terraform 1.2.9
• Terraform Helm Provider 2.7.0

Requirements

• Create a bucket for backend.tf to store Terraform state file

# valid LOCATION values are `asia`, `eu` or `us`
gsutil mb -l $LOCATION gs://$BUCKET_NAME
gsutil versioning set on gs://$BUCKET_NAME

Authentication

• File config - config_path = "~/.kube/config" in providers.tf

The easiest way is to supply a path to your kubeconfig file using the config_path attribute or using the KUBE_CONFIG_PATH environment variable. A kubeconfig file may have multiple contexts. If config_context is not specified, the provider will use the default context.

• Credentials config
• OAuth2 access token

Installation

terraform init

terraform plan

terraform apply

Below two Charts with specific release names will be installed.

• Nginx
• Redis

NAME            	NAMESPACE	REVISION	UPDATED                             	STATUS  	CHART        	APP VERSION
my-nginx-release	default  	1       	2022-10-10 20:26:18.274088 +0800 CST	deployed	nginx-13.2.10	1.23.1     
my-redis-release	default  	1       	2022-10-10 20:32:31.556624 +0800 CST	deployed	redis-17.3.4 	7.0.5 

Cleanup

terraform destroy

Reference

https://registry.terraform.io/providers/hashicorp/helm/latest/docs

More example with custom Helm Charts

Refer to my Emissary example