huskies: merge 1107 story Chat bootstrap Phase 2a: stack-overlay framework + Rust and Node stack overlays

docker/Dockerfile.base

@@ -0,0 +1,49 @@
+# huskies-project-base — minimal base for all project containers.
+#
+# This image provides git, the huskies server binary, and a non-root user.
+# It carries no language tooling. Per-stack overlays (docker/stacks/<name>/
+# Dockerfile.fragment) layer their toolchains on top of this base.
+#
+# Prerequisites: build the main `huskies` image first so its binary is
+# available as a build source.
+#
+#   docker build -t huskies -f docker/Dockerfile .
+#   docker build -t huskies-project-base -f docker/Dockerfile.base .
+#
+# To build a stack image (e.g. rust):
+#   (echo "FROM huskies-project-base"; \
+#    cat docker/stacks/rust/Dockerfile.fragment) | \
+#   docker build -t huskies-project-rust -
+
+FROM huskies AS huskies-src
+
+FROM debian:bookworm-slim
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        git \
+        curl \
+        ca-certificates \
+        libssl3 \
+        procps \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy the huskies binary and entrypoint from the main image.
+COPY --from=huskies-src /usr/local/bin/huskies /usr/local/bin/huskies
+COPY --from=huskies-src /usr/local/bin/entrypoint.sh /usr/local/bin/entrypoint.sh
+
+# Non-root user — Claude Code refuses --dangerously-skip-permissions as root.
+RUN groupadd -r huskies \
+    && useradd -r -g huskies -m -d /home/huskies huskies \
+    && mkdir -p /home/huskies/.claude \
+    && chown -R huskies:huskies /home/huskies \
+    && mkdir -p /workspace \
+    && chown huskies:huskies /workspace \
+    && git config --global init.defaultBranch master
+
+USER huskies
+WORKDIR /workspace
+
+EXPOSE 3001
+
+ENTRYPOINT ["entrypoint.sh"]
+CMD ["huskies", "/workspace"]