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)

Dockerfile

@@ -1,11 +0,0 @@
-FROM golang:1.19
-
-WORKDIR /usr/src/app
-
-COPY go.mod go.sum ./
-RUN go mod download && go mod verify
-
-COPY . .
-RUN go build -v -o /usr/local/bin/pad-archiver ./...
-
-CMD ["pad-archiver"]

flake.nix

@@ -10,16 +10,22 @@
       in
       rec {
         formatter = pkgs.nixpkgs-fmt;
-
-        packages = flake-utils.lib.flattenTree {
-          pad-archiver = pkgs.callPackage ./nix { pkgs = pkgs; };
-          gitAndTools = pkgs.gitAndTools;
+        packages = flake-utils.lib.flattenTree rec {
+          pad-archiver = pkgs.callPackage ./nix { };
+          dockerImage = pkgs.dockerTools.buildLayeredImage {
+            name = "pad-archiver";
+            tag = "latest";
+            contents = [ pad-archiver ];
+            config = {
+              Cmd = [ "${pad-archiver}/bin/pad-archiver" ];
+              WorkingDir = "/data";
+              Volumes = { "/data" = { }; };
+            };
+          };
         };
-
         checks = {
           nix-format = pkgs.runCommand "nix-format" { buildInputs = [ formatter ]; } "nixpkgs-fmt --check ${./.} && touch $out";
         };
-
         defaultPackage = packages.pad-archiver;
         apps.pad-archiver = flake-utils.lib.mkApp { drv = packages.pad-archiver; };
         defaultApp = apps.pad-archiver;

nix/default.nix

@@ -1,9 +1,10 @@
-{ pkgs, lib, buildGoModule }:
+{ lib, buildGoModule }:
 buildGoModule {
   pname = "pad-archiver";
   version = "0.0.1";
   src = ../.;
   vendorSha256 = "sha256-vBni3j3o0P13PJg/Ab1ux9zSVr05Iha/sb8dVTX4G0g=";
+  ldflags = [ "-s" "-w" ];
   meta = with lib; {
     description = "Archives Etherpads with git";
     homepage = "https://github.com/dadada/pad-archiver";