mirror of
https://github.com/NousResearch/hermes-agent.git
synced 2026-05-29 06:31:32 +00:00
e0e9c895d3
BREAKING CHANGE: the container ENTRYPOINT is now /init (s6-overlay)
instead of /usr/bin/tini. Main hermes runs as the container CMD with
TTY inherited (preserving --tui), dashboard runs as a supervised s6-rc
service (HERMES_DASHBOARD=1 starts it; crashes auto-restart), and the
ground is laid for per-profile gateway supervision (Phase 3+4).
All five pre-s6 docker run invocation patterns continue to work
identically — verified by the Phase 0 docker harness:
docker run <image> → `hermes` with no args
docker run <image> chat -q "..." → `hermes chat -q ...` passthrough
docker run <image> sleep infinity → `sleep infinity` direct
docker run <image> bash → interactive bash
docker run -it <image> --tui → interactive Ink TUI
Phase 2 harness result: 12 passed, 2 xfailed (Phase 4 target). Hadolint
+ shellcheck pass cleanly.
Architecture pivot from plan v3 (documented in main-hermes/run header):
the plan called for main hermes to be an s6-supervised service, but
two real s6-overlay v3 mechanics blocked that — cont-init.d scripts
receive no arguments (CMD args are not visible to stage2-hook), and
`/run/s6/basedir/bin/halt` after writing the exit code did not
propagate the desired exit code (container exits 143). We use the
s6-overlay-native CMD pattern instead: main-wrapper.sh is the
container's main program (ENTRYPOINT prepends it so leading-dash
args like --version aren't intercepted by /init), exec's the final
program with stdin/stdout/stderr inherited, and the program's exit
code becomes the container exit code. main-hermes is now a no-op
`sleep infinity` slot kept for future supervised-gateway-container
modes. This trades "supervised restart of main hermes" for arg-
parity with the pre-s6 contract — main hermes was already unsupervised
under tini, so we lose nothing functional. Dashboard supervision is
the only new guarantee added by this phase.
Files added:
docker/main-wrapper.sh # arg routing + s6-setuidgid drop
docker/stage2-hook.sh # gosu-equivalent + chown + seed
docker/s6-rc.d/main-hermes/{type,run,dependencies.d/base}
docker/s6-rc.d/dashboard/{type,run,dependencies.d/base}
docker/s6-rc.d/user/contents.d/{main-hermes,dashboard}
Files changed:
Dockerfile: tini → s6-overlay install + ENTRYPOINT flip + service wiring
docker/entrypoint.sh: thin shim to stage2-hook.sh for back-compat
tests/docker/test_dashboard.py: add test_dashboard_restarts_after_crash
Refs: docs/plans/2026-05-07-s6-overlay-dynamic-subagent-gateways.md
179 lines
9.3 KiB
Docker
179 lines
9.3 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 was previously PID 1 to reap orphaned zombie processes (MCP stdio
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# subprocesses, git, bun, etc.) that would otherwise accumulate when hermes
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# ran as PID 1. See #15012. Phase 2 of the s6-overlay supervision plan
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# replaces tini with s6-overlay's /init (PID 1 = s6-svscan), which reaps
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# zombies non-blockingly on SIGCHLD and additionally supervises the main
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# hermes process, the dashboard, and per-profile gateways.
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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 curl nodejs npm python3 ripgrep ffmpeg gcc python3-dev libffi-dev procps git openssh-client docker-cli xz-utils && \
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rm -rf /var/lib/apt/lists/*
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# ---------- s6-overlay install ----------
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# s6-overlay provides supervision for the main hermes process, the dashboard,
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# and per-profile gateways. /init becomes PID 1 below — see ENTRYPOINT.
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# x86_64 only for now; aarch64 (Apple Silicon, ARM servers) is a follow-up
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# that needs TARGETARCH plumbing across all three ADDs.
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ARG S6_OVERLAY_VERSION=3.2.3.0
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ADD https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-noarch.tar.xz /tmp/
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ADD https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-x86_64.tar.xz /tmp/
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ADD https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-symlinks-noarch.tar.xz /tmp/
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RUN tar -C / -Jxpf /tmp/s6-overlay-noarch.tar.xz && \
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tar -C / -Jxpf /tmp/s6-overlay-x86_64.tar.xz && \
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tar -C / -Jxpf /tmp/s6-overlay-symlinks-noarch.tar.xz && \
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rm /tmp/s6-overlay-*.tar.xz
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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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#
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# ui-tui/packages/hermes-ink/ is copied IN FULL (not just its manifests)
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# because it is referenced as a `file:` workspace dependency from
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# ui-tui/package.json. Copying the tree up front lets npm resolve the
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# workspace to real content instead of stopping at a bare package.json.
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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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COPY ui-tui/package.json ui-tui/package-lock.json ui-tui/
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COPY ui-tui/packages/hermes-ink/ ui-tui/packages/hermes-ink/
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# `npm_config_install_links=false` forces npm to install `file:` deps as
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# symlinks (the npm 10+ default) even on Debian's older bundled npm 9.x,
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# which defaults to `install-links=true` and installs file deps as *copies*.
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# The host-side package-lock.json is generated with a newer npm that uses
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# symlinks, so an install-as-copy produces a hidden node_modules/.package-lock.json
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# that permanently disagrees with the root lock on the @hermes/ink entry.
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# That disagreement trips the TUI launcher's `_tui_need_npm_install()`
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# check on every startup and triggers a runtime `npm install` that then
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# fails with EACCES (node_modules/ is root-owned from build time).
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ENV npm_config_install_links=false
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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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(cd ui-tui && npm install --prefer-offline --no-audit) && \
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npm cache clean --force
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# ---------- Layer-cached Python dependency install ----------
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# Copy only pyproject.toml + uv.lock so the Python dep resolve + wheel
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# download + native-extension compile layer is cached unless those inputs
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# change. Before this split the Python install sat after `COPY . .`, so
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# every source-only commit re-did ~4-5 min of dep work on cold builds.
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#
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# README.md is referenced by pyproject.toml's `readme =` field, but it's
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# excluded from the build context by .dockerignore's `*.md`. uv's build
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# frontend stats the readme path during dep resolution, so we `touch` an
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# empty placeholder — the real README is restored by `COPY . .` below.
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#
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# `uv sync --frozen --no-install-project --extra all --extra messaging`
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# installs the deps reachable through the composite `[all]` extra
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# (handpicked set intended for the production image), plus gateway
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# messaging adapters that should work in the published image without a
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# first-boot lazy install. We do NOT use `--all-extras`:
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# that would pull in `[rl]` (atroposlib + tinker + torch + wandb from
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# git), `[yc-bench]` (another git dep), and `[termux-all]` (Android
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# redundancy), none of which belong in the published container.
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#
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# The editable link is created after the source copy below.
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COPY pyproject.toml uv.lock ./
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RUN touch ./README.md
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RUN uv sync --frozen --no-install-project --extra all --extra messaging
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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 browser dashboard and terminal UI assets.
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RUN cd web && npm run build && \
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cd ../ui-tui && 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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# node_modules trees additionally need to be writable by the hermes user
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# so the runtime `npm install` triggered by _tui_need_npm_install() in
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# hermes_cli/main.py succeeds (see #18800). /opt/hermes/web is build-time
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# only (HERMES_WEB_DIST points at hermes_cli/web_dist) and is intentionally
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# not chowned here.
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# The .venv MUST remain hermes-writable so lazy_deps.py can install
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# remaining optional platform packages and future pin bumps at first use.
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# Without this, `uv pip install` fails with EACCES and adapters silently
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# fail to load. See tools/lazy_deps.py.
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USER root
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RUN chmod -R a+rX /opt/hermes && \
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chown -R hermes:hermes /opt/hermes/.venv /opt/hermes/ui-tui /opt/hermes/node_modules
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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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# ---------- Link hermes-agent itself (editable) ----------
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# Deps are already installed in the cached layer above; `--no-deps` makes
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# this a fast (~1s) egg-link creation with no resolution or downloads.
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RUN uv pip install --no-cache-dir --no-deps -e "."
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# ---------- s6-overlay service wiring ----------
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# Static services declared at build time: main-hermes + dashboard.
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# Per-profile gateway services are registered dynamically at runtime by
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# the profile create/delete hooks (Phase 4); they live under
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# /run/service/ (tmpfs) and are reconciled on container restart by
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# /etc/cont-init.d/02-reconcile-profiles (Phase 4 Task 4.0).
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COPY docker/s6-rc.d/ /etc/s6-overlay/s6-rc.d/
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# stage2-hook handles UID/GID remap, volume chown, config seeding,
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# skills sync, and TUI detection — all the work the old entrypoint.sh
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# did between gosu-drop and `exec hermes`. Wired in as cont-init.d/01-
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# so it runs before any user services start.
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RUN mkdir -p /etc/cont-init.d && \
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printf '#!/bin/sh\nexec /opt/hermes/docker/stage2-hook.sh\n' \
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> /etc/cont-init.d/01-hermes-setup && \
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chmod +x /etc/cont-init.d/01-hermes-setup
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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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RUN mkdir -p /opt/data
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VOLUME [ "/opt/data" ]
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# s6-overlay's /init is PID 1. It sets up the supervision tree, runs
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# /etc/cont-init.d/* (our stage2 hook), starts s6-rc services
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# declared in /etc/s6-overlay/s6-rc.d/, then exec's its remaining
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# argv as the container's "main program" with stdin/stdout/stderr
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# inherited (this is what makes interactive --tui work). When the
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# main program exits, /init begins stage 3 shutdown and the container
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# exits with the program's exit code. Replaces tini — see Phase 2 of
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# docs/plans/2026-05-07-s6-overlay-dynamic-subagent-gateways.md.
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#
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# We use the ENTRYPOINT+CMD split rather than CMD alone so the
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# wrapper is prepended to user-supplied args automatically:
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#
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# docker run <image> → /init main-wrapper.sh (CMD default)
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# docker run <image> chat -q "hi" → /init main-wrapper.sh chat -q hi
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# docker run <image> sleep infinity → /init main-wrapper.sh sleep infinity
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# docker run <image> --tui → /init main-wrapper.sh --tui
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#
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# main-wrapper.sh handles arg routing (bare-exec vs. hermes
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# subcommand vs. no-args), drops to the hermes user via s6-setuidgid,
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# and exec's the final program so its exit code becomes the container
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# exit code. Without the wrapper-as-ENTRYPOINT, leading-dash args
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# like `--version` would be intercepted by /init's POSIX shell.
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ENTRYPOINT [ "/init", "/opt/hermes/docker/main-wrapper.sh" ]
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CMD [ ]
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