ci: add GitHub Actions workflow for Docker image publishing

Author: Tycale

.github/workflows/docker-publish.yml

@@ -0,0 +1,53 @@
+name: Version Bump and Docker Publish
+on:
+  push:
+    branches:
+      - main
+      - master
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      packages: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      
+      - name: Bump version and push tag
+        id: tag_version
+        uses: mathieudutour/[email protected]
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+      
+      - name: Create a GitHub release
+        uses: ncipollo/release-action@v1
+        with:
+          tag: ${{ steps.tag_version.outputs.new_tag }}
+          name: Release ${{ steps.tag_version.outputs.new_tag }}
+          body: ${{ steps.tag_version.outputs.changelog }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: amd64,arm64
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_PASSWORD }}
+
+      - name: Build and Push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm64
+          tags: |
+            charlessortlist/pg-repack-docker:latest
+            charlessortlist/pg-repack-docker:${{ steps.tag_version.outputs.new_tag }}