The repair branch in `systemd_install()` exits as soon as it rewrites an
outdated unit and re-runs `systemctl enable`, bypassing
`_ensure_linger_enabled()`. On headless Linux the command reports
success, but the repaired user service still stops at logout.
Call `_ensure_linger_enabled()` before the early return when the install
is user-scoped, mirroring what the fresh-install path already does.
Adds two regression tests in `tests/hermes_cli/test_gateway_linger.py`:
- repair path (user scope) calls the linger helper
- repair path (system scope) does not call it
_user_systemd_socket_ready() accepts systemd/private alone, which is enough for
systemctl --user but not for the systemd-run --user that restart-safe workers
need; systemd_user_bus_env() requires the bus socket. Replace the uid threading
through five helpers with one _wait_for_target_user_bus(uid) that polls
/run/user/<uid>/bus, and move the post-enable wait + restart hint out of
_ensure_linger_enabled into _ensure_system_service_linger so the activity probe
runs only when linger was actually just enabled. Kanban applies the bus env
unconditionally like the cron sibling. Refs #104893.
A system unit's `User=` has no login session on a headless host, so
user@<uid>.service never starts and `systemd-run --user --scope` — every
restart-safe cron/Kanban worker — has no bus to reach. `hermes gateway
install --system` runs as root and already knows the target user, so enable
linger for that user on fresh install, on an already-current unit, and on
repair.
- `get_systemd_linger_status()` / `_ensure_linger_enabled()` take the target
username; root is included (restart-safe workers cross `systemd-run --user`
regardless of who the gateway runs as).
- After `loginctl enable-linger` succeeds, wait for the TARGET uid's control
socket (`_wait_for_user_dbus_socket(uid=...)`) — logind starts the user
manager asynchronously and `--start-now` boots the gateway immediately; the
caller's own env (root's) says nothing about it and is never adopted.
- Messages and the manual-remediation hint are scope-aware (`sudo systemctl
restart`, not `systemctl --user`); when the repaired service is already
active, say that a restart is required — `systemctl start` on an active
unit is a no-op and the running gateway keeps its bus-less environment.
Refs #104893.
* fix(gateway): refuse to write service definitions with a temp-dir HERMES_HOME
A test/E2E harness that exports HERMES_HOME=/tmp/... and touches any
gateway service write path (install, start self-heal, restart's
refresh_systemd_unit_if_needed) bakes the throwaway home into the
production systemd unit / launchd plist. The gateway then restarts
'healthy' but pointed at an empty temp home — no platforms enabled,
deaf to every message (live incident 2026-06-11: /tmp/hermes-e2e-41264
poisoned the unit during a PR-review E2E probe; the post-update restart
produced a 7-hour zombie gateway).
The existing safety belt only sniffed pytest-shaped markers
(/pytest-of-, /hermes_test). Add a structural guard:
_temp_home_in_service_definition() extracts HERMES_HOME from the
generated systemd unit or launchd plist and refuses the write (with
actionable guidance) when it resolves under tempfile.gettempdir(),
/tmp, /var/tmp, or the macOS /private variants. Wired into all five
write sites: systemd refresh + install, launchd refresh + install +
start self-heal.
* test: patch unit generator in install tests tripped by temp-home guard
CI runs hermetic with HERMES_HOME under a tmp dir, so the real
generate_systemd_unit() output now (correctly) trips the new temp-home
write guard in three install tests. Patch the generator with synthetic
non-temp content — same pattern the existing pytest-marker guard tests
use.
All 35 subprocess.run() calls in hermes_cli/gateway.py lacked timeout
parameters. If systemctl, launchctl, loginctl, wmic, or ps blocks,
hermes gateway start/stop/restart/status/install/uninstall hangs
indefinitely with no feedback.
Timeouts tiered by operation type:
- 10s: instant queries (is-active, status, list, ps, tail, journalctl)
- 30s: fast lifecycle (daemon-reload, enable, start, bootstrap, kickstart)
- 90s: graceful shutdown (stop, restart, bootout, kickstart -k) — exceeds
our TimeoutStopSec=60 to avoid premature timeout during shutdown
Special handling: _is_service_running() and launchd_status() catch
TimeoutExpired and treat it as not-running/not-loaded, consistent with
how non-zero return codes are already handled.
Inspired by PR #3732 (dlkakbs) and issue #4057 (SHL0MS).
Reimplemented on current main which has significantly changed launchctl
handling (bootout/bootstrap/kickstart vs legacy load/unload/start/stop).
Multiple Hermes installations on the same machine now get unique
systemd service names:
- Default ~/.hermes → hermes-gateway (backward compatible)
- Custom HERMES_HOME → hermes-gateway-<8-char-hash>
Changes:
- Add get_service_name() in hermes_cli/gateway.py that derives a
deterministic service name from HERMES_HOME via SHA256
- Replace all hardcoded 'hermes-gateway' systemd references with
get_service_name() across gateway.py, main.py, status.py, uninstall.py
- Add HERMES_HOME env var to both user and system systemd unit templates
so the gateway process uses the correct installation
- Update tests to use get_service_name() in assertions
Fixes#1005
Without linger, user-level systemd services stop when the SSH session
ends — even though systemctl --user status shows active (running).
Changes to systemd_install():
- Try loginctl enable-linger automatically (succeeds when the process
has the required privileges)
- If loginctl fails (no privileges), print a clear, copy-pasteable
warning with the exact command the user must run
New helper: _ensure_linger_enabled()
- Fast path: checks /var/lib/systemd/linger/<user> (no subprocess)
- Auto-enable: loginctl enable-linger <user>
- Fallback: actionable warning with sudo command + restart instructions
Tests: 4 new tests in TestEnsureLingerEnabled, 205 passed total
Season