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2 commits
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b345323195 |
fix(docker): tee supervised gateway stdout to docker logs
Follow-up to #33583 (the gateway-run-supervised redirect). Before this fix, the supervised gateway's stdout (most visibly the "Hermes Gateway Starting…" rich-console banner) was swallowed by `s6-log` into the rotated file at `${HERMES_HOME}/logs/gateways/<profile>/current` and never reached `docker logs`. Operational signal lived in two places: * **docker logs** — saw stderr (Python `logging` defaults to stderr), so warnings/errors were visible. * **the rotated file** — saw stdout (rich banners, `print()` output, third-party libs that wrote to fd 1). This was surprising for users coming from the pre-s6 image, where `docker run … gateway run` produced a single unified stream in `docker logs`. They'd see partial output, conclude something was broken, and dig around for the missing pieces. Fix: add the `1` s6-log action directive before the file destination so each line is forwarded to s6-log's stdout — which propagates up the s6-supervise pipeline to /init's stdout = container stdout = `docker logs`. The file destination is preserved as a second destination, so the rotated log (with ISO 8601 timestamps) still exists for `hermes logs` and for survival across container restarts. Trade-off considered: timestamps. Putting `T` between `1` and the file destination (not before `1`) means: * docker logs sees raw lines — Python's logging formatter has its own timestamps, and `docker logs --timestamps` adds another layer when desired. No double-stamping in the common reading path. * The persisted file gets s6-log's ISO 8601 timestamp so even output that lacked a Python-logger timestamp (rich banners, third-party raw prints) is correlatable in `current`. Verification: * New unit-test assertion in `test_service_manager.py` locks the `s6-log 1` directive into the rendered run-script. Mutation- tested by reverting to the pre-fix script (no `1`); the assert catches it cleanly. * New docker-harness test `test_supervised_gateway_stdout_reaches_docker_logs` builds the image, runs `docker run … gateway run`, and asserts the unique `⚕` banner glyph reaches `docker logs`. Also verifies the rotated file still contains the banner (no regression on the existing file destination). Mutation-tested end-to-end: built a deliberately-broken image without the `1` directive and the test failed exactly as designed, citing the banner present in `current` but absent from `docker logs`. * `website/docs/user-guide/docker.md` gains a new `:::note Where gateway logs go` admonition documenting both destinations and the audit-log file at `${HERMES_HOME}/logs/container-boot.log`. Existing functionality preserved: every other docker-harness test still passes against the new image. Unit-test sweep across `tests/hermes_cli/` (5561 tests) is green. |
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0927fb5584 |
feat(docker): auto-redirect gateway run to supervised mode inside s6 image
Pre-s6, `docker run nousresearch/hermes-agent gateway run` was the
standard invocation: gateway ran as the container's main process,
tini reaped zombies, container exit code matched gateway exit code,
no supervision. With s6-overlay as PID 1, the same invocation now
auto-upgrades to supervised semantics — auto-restart on crash,
dashboard supervised alongside (when HERMES_DASHBOARD=1 is set),
multiple profile gateways under the same /init.
Users get the new behavior with zero changes to their docker run
command. A loud one-line breadcrumb on stderr explains the upgrade
and points at the opt-out for users who genuinely want pre-s6
foreground semantics.
How it works:
1. `_gateway_command_inner` (the `gateway run` handler) checks if
we're inside a container with s6 as PID 1.
2. If yes, dispatches `start` to the s6 service manager (registers
and starts gateway-default), then `exec sleep infinity` to keep
the CMD process alive without binding container lifetime to
gateway PID lifetime. The supervised gateway can flap freely;
`docker stop` still tears everything down via /init stage 3.
3. If no, falls through to the existing foreground code path
unchanged. Host runs of `hermes gateway run` are unaffected.
Three gates make the redirect inert outside the intended scope:
* `detect_service_manager() != "s6"` — host/non-s6-container runs.
* `HERMES_S6_SUPERVISED_CHILD=1` env var (recursion guard) —
exported by `S6ServiceManager._render_run_script` for the
s6-supervised invocation itself. Without this guard, the
supervised `gateway run --replace` would re-enter the redirect
and recurse (run → start → run → start → ...) infinitely.
* `--no-supervise` CLI flag OR `HERMES_GATEWAY_NO_SUPERVISE=1` env
var — explicit user opt-out for CI smoke tests, debugging the
foreground startup path, or any case wanting "CMD exit =
container exit" semantics. Strict truthiness (1/true/yes,
case-insensitive); typos like `=0` do NOT silently opt out.
Tests:
* Unit tests in tests/hermes_cli/test_gateway_s6_dispatch.py
cover all five paths (host no-op, supervised fire, sentinel
recursion guard, CLI flag, env var truthy + falsy). The two
load-bearing gates (sentinel + opt-out) were mutation-tested
by removing each gate in isolation and confirming the dedicated
test fails with the expected error.
* Docker harness tests in tests/docker/test_gateway_run_supervised.py
cover the round trips end-to-end against a built image: redirect
fires (sleep-infinity heartbeat + supervised gateway-default
slot + breadcrumb), --no-supervise opt-out (foreground gateway,
no want-up on the slot), HERMES_GATEWAY_NO_SUPERVISE env var
works identically, recursion is impossible (≤1 supervised
python gateway-run + exactly 1 sleep-infinity parented to the
CMD wrapper), and HERMES_DASHBOARD=1 produces both supervised
gateway and supervised dashboard.
Docs:
* Added a `:::tip Gateway runs supervised` admonition near the
main docker.md example explaining the upgrade and pointing at
the opt-out. Pre-s6 (tini-based) images still run gateway run
as the foreground main process, so the note is scoped to the
s6 image only.
Trade-off documented in the helper docstring: container exit code
under the redirect is sleep's exit code (always 0 on SIGTERM), not
the gateway's. That was an explicit design call — the supervised
gateway is allowed to flap without taking the container with it,
which is what "supervision" means. CI users who want exit-code
forwarding can pass --no-supervise.
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