chore(docker): publish docker image

.github/workflows/publish-docker.yml

@@ -0,0 +1,36 @@
+name: Publish Docker Image
+
+on:
+  push:
+
+concurrency:
+  group: "${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}"
+  cancel-in-progress: true
+
+env:
+  IMAGE_NAME: commune
+  GHCR_REGISTRY: ghcr.io/commune-os
+
+jobs:
+  publish_image:
+    name: Publish image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Rust Toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: stable
+          targets: x86_64-unknown-linux-musl
+
+      - name: Install Just
+        uses: extractions/setup-just@v1
+
+      - name: Build Server
+        run: just build_server

Justfile

@@ -60,3 +60,12 @@ clear: stop
 # Runs all the tests from the `test` package. Optionally runs a single one if name pattern is provided
 e2e *args='':
   cargo test --package test -- --nocapture --test-threads=1 $1
+
+# Builds the Server binary used in the Docker Image
+build_server:
+  cargo build --release -p server --target x86_64-unknown-linux-musl
+  ls ./target/x86_64-unknown-linux-musl/release
+
+# Builds the Docker image for the backend
+build_image *args='latest': build_server
+  docker build -t "commune:$1-aarch64-unknown-linux-musl" .