Add CD module deployment

.github/workflows/cd-terraform-module-deployment.yml

@@ -0,0 +1,83 @@
+name: CD - Terraform Module Deplyment
+
+on:
+  release:
+    types: [published]
+
+env:
+  MODULE_DEPLOYMENT_DIR: "module-deployment"
+
+jobs:
+  set-outputs:
+    name: Set Output Vars
+    runs-on: ubuntu-22.04
+    outputs:
+      branch: ${{ steps.var.outputs.branch }}
+    steps:
+      - id: var
+        run: |
+          BRANCH="${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}"
+          BRANCH="$(echo "$BRANCH" | sed 's;/;%2F;g')"
+          echo "branch=$BRANCH" >> $GITHUB_OUTPUT
+
+  terraform-apply:
+    name: Terraform Apply
+    runs-on: ubuntu-latest
+    needs: set-outputs
+    permissions:
+      id-token: write
+      contents: read
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          aws-region: ${{ secrets.AWS_REGION }}
+          role-to-assume: ${{ secrets.AWS_OIDC_ROLE_ARN }}
+
+      - name: Get terraform version
+        id: get-terraform-version
+        run: |
+          DOTFILE_VERSION=$(cat ${{ env.MODULE_DEPLOYMENT_DIR }}/.terraform-version)
+          echo "version=$DOTFILE_VERSION" >> $GITHUB_OUTPUT
+
+      - name: Setup Terraform
+        uses: hashicorp/[email protected]
+        with:
+          terraform_version: ${{ steps.get-terraform-version.outputs.version }}
+
+      - name: Download tfvars and backend
+        run: |
+          aws s3 cp s3://${{ secrets.TFVARS_S3_BUCKET_NAME }}/${{ secrets.TFVARS_FILENAME }} ${{ env.MODULE_DEPLOYMENT_DIR }}/.
+          aws s3 cp s3://${{ secrets.TFVARS_S3_BUCKET_NAME }}/${{ secrets.TF_BACKEND_FILENAME }} ${{ env.MODULE_DEPLOYMENT_DIR }}/.
+
+      - name: Replace module version with Revision tag
+        run: |
+          sed -i "s/  source = \"github.com\/chris-qa-org\/terraform-aws-tfl-notice-board.*/  source = \"github.com\/chris-qa-org\/terraform-aws-tfl-notice-board?ref=${{ github.ref_name }}\"/g" ${{ env.MODULE_DEPLOYMENT_DIR }}/tfl-notice-board.tf
+
+      - name: Run a Terraform init
+        run: |
+          terraform -chdir=${{ env.MODULE_DEPLOYMENT_DIR }} \
+          init
+
+      - name: Run a Terraform validate
+        run: |
+          terraform -chdir=${{ env.MODULE_DEPLOYMENT_DIR }} \
+          validate
+
+      - name: Run a Terraform format check
+        run: |
+          terraform -chdir=${{ env.MODULE_DEPLOYMENT_DIR }} \
+          fmt -check=true -diff=true
+
+      - name: Run a Terraform plan
+        run: |
+          terraform -chdir=${{ env.MODULE_DEPLOYMENT_DIR }} \
+          plan
+
+      - name: Run a Terraform apply
+        run: |
+          terraform -chdir=${{ env.MODULE_DEPLOYMENT_DIR }} \
+          apply