deploy.yml

---
name: Deploy

on:
  workflow_dispatch:
  push:
    branches:
      - main

jobs:
  Docker:
    if: ${{ github.repository_owner == 'elixirschool' }}
    runs-on: ubuntu-latest

    outputs:
      image: ${{ steps.outputs.outputs.image }}
      tag: ${{ steps.outputs.outputs.tag }}

    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - id: metadata
        name: Get Metadata
        uses: docker/metadata-action@v5
        with:
          flavor: |
            latest=auto
          github-token: ${{ secrets.GITHUB_TOKEN }}
          images: |
            ghcr.io/${{ github.repository }}
          tags: |
            type=sha
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=ref,event=branch
            type=ref,event=pr

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login (GHCR)
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - id: build
        name: Build
        uses: docker/build-push-action@v6
        with:
          cache-from: type=gha
          cache-to: type=gha,mode=max
          labels: ${{ steps.metadata.outputs.labels }}
          platforms: linux/amd64
          push: true
          tags: ${{ steps.metadata.outputs.tags }}

      - id: outputs
        name: Get Outputs
        uses: actions/github-script@v7
        env:
          BUILD_OUTPUT: ${{ steps.metadata.outputs.json }}
        with:
          script: |
            const metadata = JSON.parse(process.env.BUILD_OUTPUT)
            const shaUrl = metadata.tags.find((t) => t.includes(':sha-'))

            if (shaUrl == null) {
              core.error('Unable to find sha tag of image')
            } else {
              const [image, tag] = shaUrl.split(':')
              core.setOutput('image', image)
              core.setOutput('tag', tag)
            }

  Deploy:
    if: ${{ github.repository_owner == 'elixirschool' }}
    runs-on: ubuntu-latest
    needs: [Docker]

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Install (flyctl)
        uses: superfly/flyctl-actions/setup-flyctl@master

      - run: flyctl deploy --yes --image "${{ needs.Docker.outputs.image }}:${{ needs.Docker.outputs.tag }}"
        env:
          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}