Simplify & optimize Dockerfile for building server image, fix openssl linker errors (#821)

* Simplify Dockerfile for server image, fix openssl linker errors

Dockerfile -> Dockerfile.multiarch

* Leave single Dockerfile

Author: miredirex

Dockerfile

@@ -1,44 +1,41 @@
-FROM tiltedphoques/multiarch-builder:latest as builder
+# Building the server:
+#   x64:   $ docker build -t imagename .
+#   arm64: $ docker build --platform linux/arm64 -t imagename .
+#   multi-platform (build and push):
+#     $ docker buildx create --name st-server-multiarch --use
+#     $ docker buildx build --platform linux/amd64,linux/arm64 -t imagename:tag --push .
 
-ARG REPO=https://github.com/tiltedphoques/TiltedEvolution.git
-ARG BRANCH=master
-
-WORKDIR /home/builder
+FROM debian:12 AS builder
 
+ENV DEBIAN_FRONTEND=noninteractive
 ENV XMAKE_ROOT=y
 SHELL ["/bin/bash", "-c"]
 
-RUN source ~/.xmake/profile && git clone --recursive -b ${BRANCH} ${REPO} ./str && cd str && xmake config -m release -y && xmake -y && xmake install -o package -y
-
-
-# Building for x86_64
-FROM builder as amd64builder
+# Get packages and xmake
 
-RUN cp /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.30 /home/builder/libstdc++.so.6 2>/dev/null || :
+RUN apt-get update && apt-get install -y --no-install-recommends build-essential curl pkg-config git ca-certificates unzip libssl-dev && \
+    rm -rf /var/lib/apt/lists/* && \
+    curl -fsSL https://xmake.io/shget.text | bash
 
+# Copy source and build
 
-# Building for arm64/v8
-FROM builder as arm64builder
+WORKDIR /src
+COPY . /src
 
-RUN cp /usr/lib/aarch64-linux-gnu/libstdc++.so.6.0.30 /home/builder/libstdc++.so.6 2>/dev/null || :
+RUN source ~/.xmake/profile && \
+    xmake config -y -m release && xmake -y && xmake install -y -o package
 
+# Actual server runtime image; distroless for small footprint
 
-# Intermediate image that has the library specific to our $TARGETARCH
-FROM ${TARGETARCH}builder as intermediate
-# If a user has built without buildx, attempt to save them
-RUN if [ "${TARGETARCH}" = "" ]; then export LIBFILE="/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.30"; if [ ! -e ${LIBFILE} ]; then export LIBFILE=/usr/lib/aarch64-linux-gnu/libstdc++.so.6.0.30; fi ; cp ${LIBFILE} /home/builder/libstdc++.so.6; fi
+FROM gcr.io/distroless/cc-debian12 AS runtime
 
+WORKDIR /st-server
 
-# Build actual server image
-FROM ubuntu:22.04
+COPY --from=builder \
+    /src/package/lib/libSTServer.so \
+    /src/package/bin/crashpad_handler \
+    /src/package/bin/SkyrimTogetherServer \
+    /st-server/
 
-COPY --from=intermediate /home/builder/str/package/lib/libSTServer.so /home/server/libSTServer.so
-COPY --from=intermediate /home/builder/str/package/bin/crashpad_handler /home/server/crashpad_handler
-COPY --from=intermediate /home/builder/str/package/bin/SkyrimTogetherServer /home/server/SkyrimTogetherServer
-
-COPY --from=intermediate /home/builder/libstdc++.so.6 /home/server/libstdc++.so.6
-
-WORKDIR /home/server
 ENTRYPOINT ["./SkyrimTogetherServer"]
-
 EXPOSE 10578/udp