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https://github.com/NousResearch/hermes-agent.git
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acd78a457e
Install tini in the container image and route ENTRYPOINT through `/usr/bin/tini -g -- /opt/hermes/docker/entrypoint.sh`. Without a PID-1 init, orphans reparented to hermes (MCP stdio servers, git, bun, browser daemons) never get waited() on and accumulate as zombies. Long-running gateway containers eventually exhaust the PID table and hit "fork: cannot allocate memory". tini is the standard container init (same pattern Docker's --init flag and Kubernetes pause container use). It handles SIGCHLD, reaps orphans, and forwards SIGTERM/SIGINT to the entrypoint so hermes's existing graceful-shutdown handlers still run. The -g flag sends signals to the whole process group so `docker stop` cleanly terminates hermes and its descendants, not just direct children. Closes #15012. E2E-verified with a minimal reproducer image: spawning 5 orphans that reparent to PID 1 leaves 5 zombies without tini and 0 with tini.
63 lines
2.6 KiB
Docker
63 lines
2.6 KiB
Docker
FROM ghcr.io/astral-sh/uv:0.11.6-python3.13-trixie@sha256:b3c543b6c4f23a5f2df22866bd7857e5d304b67a564f4feab6ac22044dde719b AS uv_source
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FROM tianon/gosu:1.19-trixie@sha256:3b176695959c71e123eb390d427efc665eeb561b1540e82679c15e992006b8b9 AS gosu_source
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FROM debian:13.4
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# Disable Python stdout buffering to ensure logs are printed immediately
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ENV PYTHONUNBUFFERED=1
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# Store Playwright browsers outside the volume mount so the build-time
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# install survives the /opt/data volume overlay at runtime.
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ENV PLAYWRIGHT_BROWSERS_PATH=/opt/hermes/.playwright
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# Install system dependencies in one layer, clear APT cache
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# tini reaps orphaned zombie processes (MCP stdio subprocesses, git, bun, etc.)
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# that would otherwise accumulate when hermes runs as PID 1. See #15012.
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RUN apt-get update && \
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apt-get install -y --no-install-recommends \
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build-essential nodejs npm python3 ripgrep ffmpeg gcc python3-dev libffi-dev procps git openssh-client docker-cli tini && \
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rm -rf /var/lib/apt/lists/*
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# Non-root user for runtime; UID can be overridden via HERMES_UID at runtime
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RUN useradd -u 10000 -m -d /opt/data hermes
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COPY --chmod=0755 --from=gosu_source /gosu /usr/local/bin/
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COPY --chmod=0755 --from=uv_source /usr/local/bin/uv /usr/local/bin/uvx /usr/local/bin/
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WORKDIR /opt/hermes
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# ---------- Layer-cached dependency install ----------
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# Copy only package manifests first so npm install + Playwright are cached
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# unless the lockfiles themselves change.
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COPY package.json package-lock.json ./
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COPY web/package.json web/package-lock.json web/
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RUN npm install --prefer-offline --no-audit && \
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npx playwright install --with-deps chromium --only-shell && \
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(cd web && npm install --prefer-offline --no-audit) && \
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npm cache clean --force
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# ---------- Source code ----------
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# .dockerignore excludes node_modules, so the installs above survive.
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COPY --chown=hermes:hermes . .
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# Build web dashboard (Vite outputs to hermes_cli/web_dist/)
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RUN cd web && npm run build
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# ---------- Permissions ----------
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# Make install dir world-readable so any HERMES_UID can read it at runtime.
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# The venv needs to be traversable too.
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USER root
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RUN chmod -R a+rX /opt/hermes
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# Start as root so the entrypoint can usermod/groupmod + gosu.
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# If HERMES_UID is unset, the entrypoint drops to the default hermes user (10000).
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# ---------- Python virtualenv ----------
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RUN uv venv && \
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uv pip install --no-cache-dir -e ".[all]"
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# ---------- Runtime ----------
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ENV HERMES_WEB_DIST=/opt/hermes/hermes_cli/web_dist
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ENV HERMES_HOME=/opt/data
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ENV PATH="/opt/data/.local/bin:${PATH}"
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VOLUME [ "/opt/data" ]
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ENTRYPOINT [ "/usr/bin/tini", "-g", "--", "/opt/hermes/docker/entrypoint.sh" ]
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