K8s Helm Chart via Webserver Deployment - Day 4

To create a Helm chart and deploy a web server using Terraform, you can use the helm_release resource in your Terraform configuration to create the Helm chart and install it on a Kubernetes cluster. You can then use a Kubernetes resource such as a Deployment to deploy the web server to the cluster.

Here is an example of how you can use the helm_release resource to create a Helm chart and deploy a web server using Terraform:

# Create the Helm chart
resource "helm_release" "webserver" {
? name? ? ? ?= "webserver"
? repository = "https://example.com/charts"
? chart? ? ? = "webserver"


? set {
? ? name? = "image.repository"
? ? value = "nginx"
? }


? set {
? ? name? = "image.tag"
? ? value = "1.19.2"
? }
}


# Deploy the web server
resource "kubernetes_deployment" "webserver" {
? metadata {
? ? name = "webserver"
? }


? spec {
? ? replicas = 1


? ? template {
? ? ? metadata {
? ? ? ? labels = {
? ? ? ? ? app = "webserver"
? ? ? ? }
? ? ? }


? ? ? spec {
? ? ? ? container {
? ? ? ? ? image = "nginx:1.19.2"
? ? ? ? ? name? = "webserver"
? ? ? ? ? port {
? ? ? ? ? ? container_port = 80
? ? ? ? ? }
? ? ? ? }
? ? ? }
? ? }
? }
}        

This example will create a Helm release named "webserver" from the chart located at "https://example.com/charts/webserver". It will then use a Deployment to deploy a single replica of a web server container running the Nginx image with the tag "1.19.2".

You can then use the terraform apply command to create the Helm chart and deploy the web server.

It's important to note that this is just a basic example, and you can customize the helm_release and kubernetes_deployment resources with additional options and variables as needed for your use case. You can find more information about the helm_release and kubernetes_deployment resources in the Terraform documentation:

• helm_release: https://www.terraform.io/docs/providers/helm/r/release.html
• kubernetes_deployment: https://www.terraform.io/docs/providers/kubernetes/r/deployment.html

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