gcp_create_deployment.yml

name: Create HydroServer Google Cloud Deployment

on:
  workflow_dispatch:
    inputs:
      environment:
        description: 'Enter a deployment environment name.'
        required: true

permissions:
  id-token: write
  contents: read

jobs:
  setup-deployment:
    runs-on: ubuntu-20.04
    environment: ${{ github.event.inputs.environment }}
    defaults:
      run:
        working-directory: ./terraform/gcp
    steps:
      - name: Checkout Repo
        uses: actions/checkout@v4
        with:
          ref: main
    
      - name: Configure GCP Credentials
        uses: google-github-actions/auth@v2
        with:
          project_id: ${{ vars.GCP_PROJECT_ID }}
          workload_identity_provider: ${{ vars.GCP_IDENTITY_PROVIDER }}
          service_account: ${{ vars.GCP_SERVICE_ACCOUNT }}

      - name: Setup Terraform
        uses: hashicorp/setup-terraform@v1

      - name: Terraform Init
        run: terraform init -backend-config="impersonate_service_account=${{ vars.GCP_SERVICE_ACCOUNT }}" -backend-config="bucket=${{ vars.TERRAFORM_BUCKET }}" -backend-config="prefix=state/gcp_application_${{ github.event.inputs.environment }}"
  
      - name: Terraform Plan
        id: plan
        run: terraform plan -no-color -input=false -var instance="${{ github.event.inputs.environment }}" -var region="${{ vars.GCP_REGION }}" -var project_id="${{ vars.GCP_PROJECT_ID }}"
        continue-on-error: true

      - name: Terraform Plan Status
        if: steps.plan.outcome == 'failure'
        run: exit 1

      - name: Terraform Apply
        run: terraform apply -auto-approve -input=false -var instance="${{ github.event.inputs.environment }}" -var region="${{ vars.GCP_REGION }}" -var project_id="${{ vars.GCP_PROJECT_ID }}"