initial commit (no RAG server)

coderunner/Dockerfile

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+# syntax=docker/dockerfile:1
+FROM oven/bun:1.2.2-alpine
+
+WORKDIR /app
+
+# install docker cli + tini; no daemon, just the client
+RUN apk add --no-cache docker-cli tini curl;
+
+# ----- map container 'docker' group to host docker.sock GID -----
+# pass the host's docker.sock GID at build time: --build-arg DOCKER_GID=$(stat -c '%g' /var/run/docker.sock)
+ARG DOCKER_GID=977
+# create (or reuse) a group with that GID, then add the existing 'bun' user to it
+RUN addgroup -g "${DOCKER_GID}" -S docker || true \
+	&& addgroup bun docker;
+
+# switch to the nonroot bun user (already default in the base image, but explicit is nice)
+USER bun
+
+# your app
+COPY index.ts ./index.ts
+
+# expose your tool server
+EXPOSE 8787
+ENV PORT=8787
+# default docker host path; adjust if you mount elsewhere
+ENV DOCKER_HOST=unix:///var/run/docker.sock
+
+# pid 1 -> tini
+ENTRYPOINT ["/sbin/tini","--"]
+CMD ["bun","index.ts"]
+