name: Deploy VM and App

on:
  workflow_dispatch:
    inputs:
      tfvars_file:
        description: "Which tfvars file to use"
        required: true
        default: "single.tfvars.example"
        type: choice
        options:
          - single.tfvars.example
          - multi.tfvars.example

jobs:
  terraform:
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: terraform
    steps:
      - uses: actions/checkout@v4

      - uses: hashicorp/setup-terraform@v3

      - name: Select tfvars
        run: cp "${{ inputs.tfvars_file }}" terraform.tfvars

      - name: Terraform init
        run: terraform init

      - name: Terraform apply
        run: terraform apply -auto-approve

      - name: Write inventory
        run: |
          mkdir -p ../ansible/inventory
          terraform output -json vm_ipv4_addresses | jq -r '
            to_entries[] | "[app]\n\(.value) ansible_user=cloud"
          ' > ../ansible/inventory/hosts.ini

      - name: Write tags
        run: terraform output -json vm_tags > ../ansible/vm_tags.json

  deploy:
    needs: terraform
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Install Ansible
        run: |
          python3 -m pip install --upgrade pip
          pip install ansible community.docker

      - name: Deploy app
        run: ansible-playbook -i ansible/inventory/hosts.ini ansible/playbooks/deploy.yml