Merge pull request #6 from mapswipe/feat/push-docker-image

feat: add docker push workflow

Author: tnagorra

.github/workflows/docker-push-dev.yml

@@ -0,0 +1,69 @@
+name: Docker publish dev
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+     - "develop"
+  pull_request:
+
+jobs:
+  docker-publish:
+    name: Publish docker
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: 🐳 Prepare Docker
+        id: prep
+        env:
+          REPO_NAME: ghcr.io/${{ github.repository }}
+        run: |
+          REPO_NAME=$(echo $REPO_NAME | tr '[:upper:]' '[:lower:]')
+          TAG="0.0.1-dev"
+
+          # Docker
+          echo "docker_image_name=${REPO_NAME}" >> $GITHUB_OUTPUT
+          echo "docker_image_tag=${TAG}" >> $GITHUB_OUTPUT
+          echo "docker_image=${REPO_NAME}:${TAG}" >> $GITHUB_OUTPUT
+
+      - name: Login to GitHub Container Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: 🐳 Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: 🐳 Cache Docker layers
+        uses: actions/cache@v4
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.ref }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-refs/develop
+            ${{ runner.os }}-buildx-
+
+      - name: 🐳 Build image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          builder: ${{ steps.buildx.outputs.name }}
+          file: Dockerfile
+          push: false
+          load: true
+          provenance: false  # XXX: Without this we have untagged images in ghcr.io
+          tags: ${{ steps.prep.outputs.docker_image }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: 🐳 Docker push
+        if: github.event_name != 'pull_request'
+        env:
+          DOCKER_IMAGE: ${{ steps.prep.outputs.docker_image }}
+        run: docker push $DOCKER_IMAGE

Dockerfile

@@ -1,3 +1,6 @@
+# NOTE: If you make any BREAKING CHANGE:
+# - Update the Docker image tag in `./.github/workflows/docker-push-dev.yml`
+# - Update the `mapswipe-backend` workflow to use the new image tag
 FROM node:22-bullseye-slim
 
 RUN apt-get update -y \