flake: add docker image

.github/workflows/deploy.yml

@@ -0,0 +1,38 @@
+name: Deploy
+
+on:
+  push:
+    branches: [main]
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  checks:
+    name: "Deploy"
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: cachix/install-nix-action@v21
+      with:
+        nix_path: nixpkgs=channel:nixos-stable
+        extra_nix_config: |
+          experimental-features = nix-command flakes
+          access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+          system-features = nixos-test benchmark big-parallel kvm
+    - uses: cachix/cachix-action@v12
+      with:
+        name: pad-archiver
+        signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'
+        authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+    - run: nix --experimental-features 'nix-command flakes' build .#dockerImage -L
+    - run: docker load -i ./result/image.tar.gz
+    - run: docker tag pad-archiver ${{ env.IMAGE_NAME }}
+    - name: Log in to the Container registry
+      uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+      with:
+        registry: ${{ env.REGISTRY }}
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+    - run: docker push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

.github/workflows/docker-image.yml

@@ -1,16 +0,0 @@
-name: Docker Image CI
-
-on:
-  push:
-    branches: [ "main" ]
-
-jobs:
-
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Build the Docker image
-      run: docker build . --file Dockerfile --tag my-image-name:$(date +%s)