Add Dockerfile and Github Actions workflow

.dockerignore

@@ -0,0 +1,3 @@
+*.o
+*.out
+out

.github/workflows/build.yml

@@ -0,0 +1,62 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: [ master ]
+    tags: [ v* ]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Docker meta
+        id: docker-meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ghcr.io/${{ github.repository }}
+          tags: |
+            type=sha,prefix=
+            type=ref,event=tag
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          platforms: linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64/v8,linux/ppc64le,linux/riscv64,linux/s390x
+          tags: ${{ steps.docker-meta.outputs.tags }}
+          labels: ${{ steps.docker-meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          outputs: type=local,dest=${{ github.workspace }}/out
+
+      - name: Get metadata for artifact naming
+        id: meta
+        run: |
+          echo "commit-hash=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+          echo "repo-name=${GITHUB_REPOSITORY#*/}" >> $GITHUB_OUTPUT
+
+      - name: Upload built binaries
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ steps.meta.outputs.repo-name }}-${{ steps.meta.outputs.commit-hash }}
+          path: ${{ github.workspace }}/out

.gitignore

@@ -1,3 +1,4 @@
 *.o
 *.out
+out
 

Dockerfile

@@ -0,0 +1,11 @@
+FROM alpine AS builder
+RUN apk add --no-cache make gcc libc-dev
+WORKDIR /app
+ENV LDFLAGS=-static
+COPY . .
+RUN make
+
+FROM scratch
+LABEL org.opencontainers.image.licenses=MIT
+COPY --from=builder /app/microsocks /
+ENTRYPOINT ["/microsocks"]

README.md

@@ -69,6 +69,14 @@ Supported SOCKS5 Features
 - IPv4, IPv6, DNS
 - TCP (no UDP at this time)
 
+Docker container
+----------------
+You can run microsocks in a docker container:
+
+    docker run --init -d -p 7777:1080 ghcr.io/rofl0r/microsocks
+
+Replace 7777 with the port microsocks will be accessible on.
+
 Troubleshooting
 ---------------