feat: 添加 Dockerfile 以支持多平台构建和运行

Author: Mxmilu666

.github/workflows/build.yml

@@ -0,0 +1,46 @@
+name: Build Multi-Platform Binaries
+
+on:
+  push:
+    branches: ["main"]
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        goos: [linux, windows, darwin]
+        goarch: [amd64, arm64]
+        exclude:
+          - goos: windows
+            goarch: arm64
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: "1.21"
+
+      - name: Build
+        env:
+          GOOS: ${{ matrix.goos }}
+          GOARCH: ${{ matrix.goarch }}
+        run: |
+          OUTPUT_NAME=abmc-forwarder-${{ matrix.goos }}-${{ matrix.goarch }}
+          if [ "${{ matrix.goos }}" = "windows" ]; then
+            OUTPUT_NAME="${OUTPUT_NAME}.exe"
+          fi
+
+          go build -v -o "${OUTPUT_NAME}" -ldflags="-s -w" .
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: nia-forwarding-${{ matrix.goos }}-${{ matrix.goarch }}
+          path: |
+            nia-forwarding-${{ matrix.goos }}-${{ matrix.goarch }}*

Dockerfile

@@ -0,0 +1,41 @@
+# ---------- Builder Stage ----------
+FROM golang:1.23-alpine AS builder
+
+# 获取目标平台信息
+ARG TARGETPLATFORM
+ARG GOARCH
+RUN echo "Building for $TARGETPLATFORM"
+
+# 根据目标平台设置正确的 GOARCH
+RUN if [ "$TARGETPLATFORM" = "linux/amd64" ]; then \
+      echo "GOARCH=amd64" >> /etc/environment; \
+    elif [ "$TARGETPLATFORM" = "linux/arm64" ]; then \
+      echo "GOARCH=arm64" >> /etc/environment; \
+    else \
+      echo "Unsupported platform: $TARGETPLATFORM" && exit 1; \
+    fi
+
+WORKDIR /app
+
+# 复制源代码
+COPY . .
+
+# 安装构建工具、编译
+RUN . /etc/environment && \
+    CGO_ENABLED=0 GOOS=linux \
+    go build -ldflags="-s -w" -o abmc-forwarder .
+
+# ---------- Runtime Stage ----------
+FROM scratch AS runtime
+
+# 拷贝已压缩的静态二进制
+COPY --from=builder /app/abmc-forwarder /abmc-forwarder
+
+# 以非 root（UID/GID 1000）运行
+USER 1000:1000
+
+# 暴露端口与环境变量
+EXPOSE 25565 25565
+EXPOSE 19132 19132
+
+ENTRYPOINT ["/abmc-forwarder"]