build: dockerize

Author: ProgramRipper

.github/workflows/milky-docker-push.yaml

@@ -0,0 +1,62 @@
+name: Push Lagrange.Milky Docker
+
+on:
+  push:
+    branches: [ main ]
+    paths:
+      - Lagrange.Codec/**
+      - Lagrange.Core/**
+      - Lagrange.Proto/**
+      - Lagrange.Proto.Generator/**
+      - Lagrange.Milky/**
+  pull_request:
+    branches: [ main ]
+    paths:
+      - Lagrange.Codec/**
+      - Lagrange.Core/**
+      - Lagrange.Proto/**
+      - Lagrange.Proto.Generator/**
+      - Lagrange.Milky/**
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    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 Registry
+          uses: docker/login-action@v3
+          if: github.event_name != 'pull_request'
+          with:
+            registry: ghcr.io
+            username: ${{ github.repository_owner }}
+            password: ${{ secrets.GITHUB_TOKEN }}
+
+        - name: Extract metadata (tags, labels) for Docker
+          id: meta
+          uses: docker/metadata-action@v5
+          with:
+            images: |
+              ghcr.io/${{ github.repository_owner }}/lagrange.milky
+            tags: |
+              type=edge
+              type=sha,event=branch
+              type=ref,event=tag
+
+        - name: Build and push
+          uses: docker/build-push-action@v5
+          with:
+            context: .
+            file: "Lagrange.Milky/Resources/Dockerfile"
+            push: ${{ github.event_name != 'pull_request' }}
+            tags: ${{ steps.meta.outputs.tags }}
+            labels: ${{ steps.meta.outputs.labels }}
+            platforms: linux/amd64

Lagrange.Milky/Resources/Dockerfile

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+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:9.0-alpine AS build
+
+WORKDIR /root/build
+ARG TARGETARCH
+
+COPY --link . /root/build
+
+RUN dotnet publish Lagrange.Milky -p:DebugType="none" -c Release -a $TARGETARCH -o /root/out
+
+# ===
+
+FROM mcr.microsoft.com/dotnet/runtime-deps:9.0-alpine
+
+WORKDIR /app/data
+
+COPY --link --from=tianon/gosu /gosu /usr/local/bin/
+COPY --link Lagrange.Milky/Resources/docker-entrypoint.sh /app/bin/docker-entrypoint.sh
+RUN chmod +x /app/bin/docker-entrypoint.sh
+
+COPY --link --from=build /root/out /app/bin
+
+ENTRYPOINT ["/app/bin/docker-entrypoint.sh"]

Lagrange.Milky/Resources/docker-entrypoint.sh

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+#!/bin/sh
+
+USER_ID=${UID:-0}
+
+if [ "$USER_ID" -ne 0 ]; then
+    chown -R $USER_ID /app/data
+    useradd --shell /bin/sh -u $USER_ID -o -c "" -m user
+    usermod -a -G root user
+    export HOME=/home/user
+    exec /usr/sbin/gosu user /app/bin/Lagrange.Milky "$@"
+else
+    exec /app/bin/Lagrange.Milky "$@"
+fi