Add GH Actions job to build and publish container image

.github/workflows/build-and-push.yml

@@ -0,0 +1,90 @@
+name: Build and Push Container Image
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '*.md'
+      - 'LICENSE'
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+    inputs:
+      version_bump:
+        description: 'Version bump type (patch, minor, major) or leave empty to use VERSION file'
+        required: false
+        default: ''
+
+env:
+  DOCKERHUB_REPO: bartekmp/cupsane
+  GHCR_REPO: ghcr.io/${{ github.repository_owner }}/cupsane
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Read version from VERSION file
+        id: version
+        run: |
+          VERSION=$(cat VERSION | tr -d '\n\r ')
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "Current version: $VERSION"
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Docker Hub
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Log in 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: Extract metadata for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ${{ env.DOCKERHUB_REPO }}
+            ${{ env.GHCR_REPO }}
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=raw,value=${{ steps.version.outputs.version }}
+            type=sha,prefix=
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: linux/amd64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Update Docker Hub description
+        if: github.event_name != 'pull_request'
+        uses: peter-evans/dockerhub-description@v4
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          repository: ${{ env.DOCKERHUB_REPO }}
+          readme-filepath: ./README.md

README.md

@@ -1,5 +1,9 @@
 # cupsane
 
+[![Docker Hub](https://img.shields.io/docker/v/bartekmp/cupsane?label=Docker%20Hub&logo=docker)](https://hub.docker.com/r/bartekmp/cupsane)
+[![GitHub Container Registry](https://img.shields.io/badge/ghcr.io-bartekmp%2Fcupsane-blue?logo=github)](https://ghcr.io/bartekmp/cupsane)
+[![Build](https://github.com/bartekmp/cupsane/actions/workflows/build-and-push.yml/badge.svg)](https://github.com/bartekmp/cupsane/actions/workflows/build-and-push.yml)
+
 A containerized CUPS print server with SANE scanner support and web-based scanning interface (scanservjs), designed for network printing and scanning with HP printers/scanners.
 
 ## Features

VERSION

@@ -0,0 +1 @@
+1.0.0