forked from Zakaria/hermes-agent
Zakaria
83 lines
3.1 KiB
Bash
Executable File
83 lines
3.1 KiB
Bash
Executable File
#!/command/with-contenv sh
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# shellcheck shell=sh
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# /opt/hermes/docker/main-wrapper.sh — wraps the container's CMD with
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# the same argument-routing logic the pre-s6 entrypoint.sh used. Runs
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# as /init's "main program" (Docker CMD) so it inherits stdin/stdout/
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# stderr from the container.
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#
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# Shebang note: /init scrubs env before invoking CMD, so a plain
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# `#!/bin/sh` wrapper sees an empty environ and `ENV HERMES_HOME=/opt/data`
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# from the Dockerfile never reaches `hermes`. with-contenv repopulates
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# the env from /run/s6/container_environment before exec'ing, which is
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# what s6-supervised services use too (see main-hermes/run).
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#
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# Routing:
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# no args → exec `hermes` (the default)
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# first arg is an executable → exec it directly (sleep, bash, sh, …)
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# first arg is anything else → exec `hermes <args>` (subcommand passthrough)
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#
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# Drop to hermes via s6-setuidgid, but skip it when already non-root.
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set -e
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drop() { [ "$(id -u)" = 0 ] && set -- s6-setuidgid hermes "$@"; exec "$@"; }
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# --- Reject the unsupported `docker run --user <uid>:<gid>` start ---
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# Mirror the guard in stage2-hook.sh (cont-init). This is the surface the
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# user actually sees in `docker run` output: when the container is pinned to
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# an arbitrary non-root, non-hermes UID, the bootstrap was skipped and the
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# baked image dirs (owned by the hermes build UID) are unwritable, so fail
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# fast here with actionable guidance rather than crashing on `cd`/EACCES
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# further down. See stage2-hook.sh for the full rationale.
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cur_uid="$(id -u)"
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if [ "$cur_uid" != 0 ] && [ "$cur_uid" != "$(id -u hermes)" ]; then
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cat >&2 <<EOF
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[hermes] ERROR: container started with --user $cur_uid (an arbitrary, non-hermes UID) — not supported.
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To make container-written files match your HOST user, don't use --user.
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Start as root (the default) and pass your host UID/GID instead:
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docker run -e HERMES_UID=\$(id -u) -e HERMES_GID=\$(id -g) ...
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NAS users (Synology / unRAID / UGOS) can use the PUID/PGID aliases:
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docker run -e PUID=\$(id -u) -e PGID=\$(id -g) ...
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The image remaps the hermes user to that UID/GID at boot and chowns the data
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volume, so files land owned by your host user — the same outcome --user gave,
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without breaking the s6 supervision tree.
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EOF
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exit 1
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fi
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# HOME comes through with-contenv as /root (the /init context). Override
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# to the hermes user's home before dropping privileges so libraries that
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# resolve paths via $HOME (e.g. discord lockfile under XDG_STATE_HOME)
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# don't try to write to /root.
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export HOME=/opt/data
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# Save the Docker -w (or default) working directory before init
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# scripts cd to /opt/data, so the container starts in the
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# directory the user requested.
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_hermes_orig_cwd="${HERMES_ORIG_CWD:-$PWD}"
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cd /opt/data
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# shellcheck disable=SC1091
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. /opt/hermes/.venv/bin/activate
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# Restore the original working directory before handing off to
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# the user's command so `hermes chat` starts in the Docker -w
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# directory, not /opt/data.
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cd "$_hermes_orig_cwd"
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if [ $# -eq 0 ]; then
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drop hermes
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fi
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if command -v "$1" >/dev/null 2>&1; then
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# Bare executable — pass through directly.
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drop "$@"
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fi
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# Hermes subcommand pass-through.
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drop hermes "$@"
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