Added a workflow for publishing the Docker container to GitHub's package registry

Author: Michael-F-Bryan

.github/workflows/publish-docker.yml

@@ -0,0 +1,56 @@
+name: Publish Docker image
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches: [master]
+    tags: ["*"]
+
+permissions:
+  contents: read
+  packages: write
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  docker:
+    runs-on: ubuntu-24.04
+    env:
+      REGISTRY: ghcr.io
+      IMAGE_NAME: ghcr.io/mavlink/mavlink2rest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Docker metadata (tags, labels)
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.IMAGE_NAME }}
+          tags: |
+            type=sha,prefix=,format=long
+            type=ref,event=tag
+            type=raw,value=latest
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          platforms: linux/amd64,linux/arm64
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

README.md

@@ -2,6 +2,7 @@
 
 [![Deploy mavlink2rest](https://github.com/mavlink/mavlink2rest/actions/workflows/deploy.yml/badge.svg)](https://github.com/mavlink/mavlink2rest/actions/workflows/deploy.yml)
 [![Test](https://github.com/mavlink/mavlink2rest/actions/workflows/test.yml/badge.svg)](https://github.com/mavlink/mavlink2rest/actions/workflows/test.yml)
+[![Docker image (GHCR): ghcr.io/mavlink/mavlink2rest](https://img.shields.io/badge/docker-ghcr.io%2Fmavlink%2Fmavlink2rest-2496ED?logo=docker&logoColor=white)](https://github.com/mavlink/mavlink2rest/pkgs/container/mavlink2rest)
 [![Cargo download](https://img.shields.io/crates/d/mavlink2rest)](https://crates.io/crates/mavlink2rest)
 [![Crate info](https://img.shields.io/crates/v/mavlink2rest.svg)](https://crates.io/crates/mavlink2rest)
 [![Documentation](https://docs.rs/mavlink2rest/badge.svg)](https://docs.rs/mavlink2rest)
@@ -122,7 +123,7 @@ docker build --build-arg TARGET_ARCH=x86_64-unknown-linux-musl -t mavlink/mavlin
         }
       }
       ```
-      > :sunglasses: This is really hand when creating messages. 
+      > :sunglasses: This is really hand when creating messages.
   * ... and a **status** structure defined as:
     ```js
     "status": {