add terraform script and workflow for create ami

.github/workflows/create-self-hosted-runner-ami.yaml

@@ -0,0 +1,30 @@
+name: Create Self Hosted Runner AMI
+
+on:
+    push:
+        #paths:
+            #- self-hosted-runner.tf
+
+jobs: 
+    create-self-hosted-runner-ami:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v2
+            - uses: hashicorp/setup-terraform@v3
+
+            - name: Initialize Terraform Environment
+              run: |
+                terraform init
+            
+            - name: Create PEM file
+              run: |
+                echo "${{ secrets.AWS_PEM_KEY }}" > ${{ secrets.AWS_KEY_NAME }}.pem
+                chmod 400 ${{ secrets.AWS_KEY_NAME }}.pem
+            
+            - name: Apply Terraform Configuration
+              run: |
+                terraform apply -auto-approve -var=aws_access_key=${{ secrets.AWS_ACCESS_KEY_ID }} -var=aws_secret_key=${{ secrets.AWS_SECRET_ACCESS_KEY }} -var=aws_key_name=${{ secrets.AWS_KEY_NAME }}
+            
+            - name: Destroy Terraform Configuration (should retain AMI from config)
+              run: |
+                terraform destroy -auto-approve -var=aws_access_key=${{ secrets.AWS_ACCESS_KEY_ID }} -var=aws_secret_key=${{ secrets.AWS_SECRET_ACCESS_KEY }} -var=aws_key_name=${{ secrets.AWS_KEY_NAME }}

ami-self-hosted-runner.tf

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+provider "aws" {
+  region = "eu-west-1"
+  access_key = var.aws_access_key
+  secret_key = var.aws_secret_key
+}
+
+variable instance_id {
+    description = "ID for EC2 instance (self-hosted-runner)"
+    type = string
+}
+
+data "aws_instance" "self_hosted_runner_instance" {
+  instance_id = var.instance_id
+}
+
+resource "aws_ami_from_instance" "self_hosted_runner_ami" {
+  name               = "self-hosted-runner-ami"
+  source_instance_id = data.aws_instance.self_hosted_runner_instance.id
+  description        = "An AMI created from an existing EC2 instance which contains the environment needed for self-hosted runner on kuadrant-operator."
+
+  tags = {
+    Name = "self-hosted-runner-ami"
+  }
+
+  lifecycle {
+    prevent_destroy = true
+  }
+}