add docker image

.github/workflows/release.yml

@@ -23,3 +23,14 @@ jobs:
         extra_files: AUTHORS LICENSE README.md doc/man/whawty-nginx-sso.8
         md5sum: false
         sha256sum: true
+  docker:
+    name: Build and Publish Docker Image
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: VaultVulp/[email protected]
+      with:
+        github-token: ${{ secrets.GITHUB_TOKEN }}
+        image-name: app
+        image-platform: linux/arm64,linux/amd64,linux/i386
+        extract-git-tag: true

Dockerfile

@@ -0,0 +1,8 @@
+FROM golang:1.21 as builder
+ADD . /src
+RUN cd /src && CGO_ENABLED=0 go build ./cmd/whawty-nginx-sso
+
+FROM scratch
+COPY --from=builder /src/whawty-nginx-sso /whawty-nginx-sso
+ENTRYPOINT [ "/whawty-nginx-sso" ]
+CMD [ "--config", "/config/config.yml", "run" ]