Auto-Trader/.github/workflows/docker-build.yml

name: Build and Push Docker Image

# Actions are pinned to immutable commit SHAs, matching every other workflow in
# this repository. The docker/* actions were moved to v4/v6/v7 in #1359; every
# input this workflow passes was checked against each new major's action.yml at
# the pinned SHA before the bump landed.
#
# The publish job runs on workflow_dispatch only, so it is exercised roughly
# once per release. That is why `validate-build` below exists: a bad pin or a
# broken Dockerfile would otherwise be discovered by whoever is mid-release,
# not by CI. It runs the SAME four actions with `push: false`, on every change
# to the Dockerfile, this workflow, or the packaging metadata.

on:
  workflow_dispatch:
    inputs:
      image_tag:
        description: 'Image tag (e.g., v1.0.0, latest)'
        required: true
        default: 'latest'
  pull_request:
    paths:
      - 'Dockerfile'
      - '.dockerignore'
      - '.github/workflows/docker-build.yml'
      - 'pyproject.toml'
  push:
    branches: [main]
    paths:
      - 'Dockerfile'
      - '.dockerignore'
      - '.github/workflows/docker-build.yml'
      - 'pyproject.toml'

env:
  GHCR_REGISTRY: ghcr.io
  DOCKERHUB_REGISTRY: docker.io
  GHCR_IMAGE_NAME: ${{ github.repository }}
  DOCKERHUB_IMAGE_NAME: ${{ secrets.DOCKERHUB_USERNAME }}/${{ github.event.repository.name }}

jobs:
  # Exercises the pinned docker/* actions and the Dockerfile without pushing
  # anything. Single platform on purpose: this is a "does it still build and do
  # the actions still accept these inputs" check, not a release build, and
  # emulating arm64 here would triple the runtime for no extra signal.
  validate-build:
    if: github.event_name != 'workflow_dispatch'
    runs-on: ubuntu-24.04
    permissions:
      contents: read

    steps:
      - name: Checkout repository
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4.3.0

      - name: Set up QEMU
        uses: docker/setup-qemu-action@1f40c72289eff860ee54a304f1438e3cff362e0a # v4.3.0

      - name: Extract metadata
        id: meta-validate
        uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v6.2.0
        with:
          images: ${{ env.GHCR_REGISTRY }}/${{ env.GHCR_IMAGE_NAME }}
          tags: |
            type=raw,value=ci-validate

      - name: Build without pushing
        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
        with:
          context: .
          file: Dockerfile
          platforms: linux/amd64
          push: false
          tags: ${{ steps.meta-validate.outputs.tags }}
          labels: ${{ steps.meta-validate.outputs.labels }}
          # Deliberately no GitHub Actions cache here. `type=gha` export needs
          # a wider token than this job's `contents: read`, and a cache
          # misconfiguration failing the run would make the check a source of
          # false alarms rather than a guard. This job is path-filtered and
          # rare; a cold build is the cheaper trade.

  build-and-push:
    if: github.event_name == 'workflow_dispatch'
    runs-on: ubuntu-24.04
    permissions:
      contents: read
      packages: write

    steps:
      - name: Validate image tag
        env:
          IMAGE_TAG: ${{ inputs.image_tag }}
        run: |
          # Fail early with a readable message rather than at the registry push.
          if ! printf '%s' "$IMAGE_TAG" | grep -qE '^[a-zA-Z0-9_][a-zA-Z0-9._-]{0,127}$'; then
            echo "::error::'$IMAGE_TAG' is not a valid Docker tag." >&2
            exit 1
          fi

      - name: Checkout repository
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4.3.0

      - name: Set up QEMU
        uses: docker/setup-qemu-action@1f40c72289eff860ee54a304f1438e3cff362e0a # v4.3.0

      - name: Log in to GHCR
        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          registry: ${{ env.GHCR_REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Log in to Docker Hub
        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          registry: ${{ env.DOCKERHUB_REGISTRY }}
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract metadata for GHCR
        id: meta-ghcr
        uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v6.2.0
        with:
          images: ${{ env.GHCR_REGISTRY }}/${{ env.GHCR_IMAGE_NAME }}
          tags: |
            type=raw,value=${{ inputs.image_tag }}
            type=raw,value=latest,enable=${{ inputs.image_tag != 'latest' }}

      - name: Extract metadata for Docker Hub
        id: meta-dockerhub
        uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v6.2.0
        with:
          images: ${{ env.DOCKERHUB_REGISTRY }}/${{ env.DOCKERHUB_IMAGE_NAME }}
          tags: |
            type=raw,value=${{ inputs.image_tag }}
            type=raw,value=latest,enable=${{ inputs.image_tag != 'latest' }}

      - name: Build and push
        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
        with:
          context: .
          file: Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: |
            ${{ steps.meta-ghcr.outputs.tags }}
            ${{ steps.meta-dockerhub.outputs.tags }}
          labels: ${{ steps.meta-ghcr.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Update Docker Hub description
        uses: peter-evans/dockerhub-description@1b9a80c056b620d92cedb9d9b5a223409c68ddfa # v5.0.0
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
          repository: ${{ env.DOCKERHUB_IMAGE_NAME }}
          readme-filepath: ./README.md
          short-description: "AI trading agent with backtesting. Includes Telegram & Feishu channels."

      - name: Summary
        # Inputs go through env, never straight into the script body: a
        # workflow_dispatch input interpolated into `run:` is a shell-injection
        # vector even when only maintainers can dispatch it.
        env:
          IMAGE_TAG: ${{ inputs.image_tag }}
          GHCR_IMAGE: ${{ env.GHCR_REGISTRY }}/${{ env.GHCR_IMAGE_NAME }}
          DOCKERHUB_IMAGE: ${{ env.DOCKERHUB_REGISTRY }}/${{ env.DOCKERHUB_IMAGE_NAME }}
        run: |
          {
            echo "### Docker Images Built and Pushed"
            echo ""
            echo "**GHCR:** \`${GHCR_IMAGE}:${IMAGE_TAG}\`"
            echo "**Docker Hub:** \`${DOCKERHUB_IMAGE}:${IMAGE_TAG}\`"
            echo ""
            echo "**Platforms:** linux/amd64, linux/arm64"
            echo "**Channels:** feishu, telegram (from requirements-channels-lock.txt)"
            echo ""
            echo '```bash'
            echo "docker pull ${GHCR_IMAGE}:${IMAGE_TAG}"
            echo '```'
            echo ""
            echo "> A newly created GHCR package is **private by default**. Until its"
            echo "> visibility is set to public once in the org package settings, the"
            echo "> pull above works only for authenticated users with read access."
          } >> "$GITHUB_STEP_SUMMARY"