#3 - DNS support + IPv6

docker/Dockerfile

@@ -14,20 +14,14 @@
 
 ARG UBUNTU_VERSION=22.04
 
-# ── toolchain stage ──────────────────────────────────────────────────────────
 FROM ubuntu:${UBUNTU_VERSION} AS toolchain
 
 ENV DEBIAN_FRONTEND=noninteractive
 
-# jammy's Vulkan headers are 1.3.204, which predates the VkBufferUsageFlags2
-# constants the renderer uses, and its glslang predates the -gVS the shader
-# target passes. LunarG publishes current headers, loader and glslang for jammy,
-# and outranks the distro packages on version.
 ARG VULKAN_SDK_VERSION=1.4.313
 
-# The apt lists are kept: conan installs the xorg and egl system packages itself
-# while resolving SDL.
-RUN apt-get update && apt-get install -y --no-install-recommends \
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
         software-properties-common ca-certificates gnupg wget \
     && add-apt-repository -y ppa:ubuntu-toolchain-r/test \
     && wget -qO /etc/apt/trusted.gpg.d/lunarg.asc \
@@ -39,15 +33,12 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
         git make ninja-build ccache pkg-config \
         python3-pip \
         vulkan-headers libvulkan-dev glslang-tools \
-        libdecor-0-dev
+        libdecor-0-dev libpqxx-dev
 
-# cmake comes from pip because jammy ships 3.22 and the project asks for 3.26.
 ARG CMAKE_VERSION=4.4.0
 ARG CONAN_VERSION=2.31.1
 RUN pip3 install --no-cache-dir "cmake==${CMAKE_VERSION}" "conan==${CONAN_VERSION}"
 
-# Some autotools dependencies (flex, by way of SDL) run sub-configures that look
-# for an unsuffixed gcc/cc and ignore $CC, so 14 has to answer to the plain names.
 RUN update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-14 100 \
         --slave /usr/bin/g++ g++ /usr/bin/g++-14 \
         --slave /usr/bin/gcov gcov /usr/bin/gcov-14 \
@@ -59,10 +50,9 @@ ENV CXX=g++
 
 COPY docker/conan/jammy /etc/conan/jammy
 
-# ── dependency stage ─────────────────────────────────────────────────────────
-# Kept apart from the build so that editing sources does not rebuild SDL and
-# protobuf. The conan cache lives in the image layer rather than a cache mount,
-# so the generators in /deps can never outlive the packages they point at.
+
+
+# toolchain installs Conan packages
 FROM toolchain AS deps
 
 COPY conanfile.txt /src/conanfile.txt
@@ -72,19 +62,14 @@ RUN conan install /src/conanfile.txt \
         --build=missing \
         --output-folder=/deps
 
-# ── build stage ──────────────────────────────────────────────────────────────
-# The build tree is a cache mount, so an edit rebuilds only what it touched.
-# That is also why glm, entt and Jolt have to travel in the build context: their
-# FetchContent SOURCE_DIRs point into external/, while the stamps that record
-# them as populated live in the cached build tree. Dropping them from the
-# context would leave the stamps pointing at empty directories.
+
+
+# Builds the project
 FROM deps AS builder
 
 WORKDIR /src
 COPY . .
 
-# tw_server is absent on purpose: it needs libpqxx >= 7.7 for pqxx::params and
-# jammy carries 6.4.
 RUN --mount=type=cache,target=/build \
     --mount=type=cache,target=/root/.ccache \
     cmake -S /src -B /build -G Ninja \
@@ -94,15 +79,7 @@ RUN --mount=type=cache,target=/build \
         -DCMAKE_C_COMPILER_LAUNCHER=ccache \
         -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
         -DCMAKE_EXE_LINKER_FLAGS="-static-libstdc++ -static-libgcc" \
-    && cmake --build /build --target \
-        tw_client \
-        tw_mock_client \
-        tw_chat_server_exe \
-        tw_chat_mock_client \
-        tw_message_protocol_tests \
-        tw_metrics_tests \
-        tw_network_tests \
-        tw_peer_to_peer_tests \
+    && cmake --build /build \
     && mkdir -p /out/bin /out/shaders \
     && cp /build/modules/client/tw_client \
           /build/modules/mock_client/tw_mock_client \
@@ -111,37 +88,20 @@ RUN --mount=type=cache,target=/build \
           /out/bin/ \
     && cp /build/modules/client/shaders/*.spirv /out/shaders/
 
-# ── unit test stage ──────────────────────────────────────────────────────────
-# Catch2 suites only. The process harnesses below need peers and a network, so
-# they run as compose services instead.
-FROM builder AS test
 
-RUN --mount=type=cache,target=/build \
-    ctest --test-dir /build --output-on-failure
 
-# ── client export stage ──────────────────────────────────────────────────────
-# Not runnable as a container; the client needs a GPU and a display. Extract it:
-#   docker build -f docker/Dockerfile --target export --output type=local,dest=dist .
+# Extracts client 
 FROM scratch AS export
 
 COPY --from=builder /out/bin/tw_client /tw_client
 COPY --from=builder /out/shaders/ /shaders/
 
-# ── runtime stages ───────────────────────────────────────────────────────────
+
+
+# Mock client
 FROM gcr.io/distroless/base-debian12:nonroot AS mock-client
 
 COPY --from=builder /out/bin/tw_mock_client /usr/local/bin/
 ENTRYPOINT ["/usr/local/bin/tw_mock_client"]
 
 
-FROM gcr.io/distroless/base-debian12:nonroot AS chat-server
-
-COPY --from=builder /out/bin/tw_chat_server_exe /usr/local/bin/
-EXPOSE 8101/udp
-ENTRYPOINT ["/usr/local/bin/tw_chat_server_exe"]
-
-
-FROM gcr.io/distroless/base-debian12:nonroot AS chat-mock-client
-
-COPY --from=builder /out/bin/tw_chat_mock_client /usr/local/bin/
-ENTRYPOINT ["/usr/local/bin/tw_chat_mock_client"]