anti 37b22b76a5 feat(cli): auto-spawn listener as detached sibling from decnet swarmctl ...

Mirrors the agent→forwarder pattern: `decnet swarmctl` now fires the
syslog-TLS listener as a detached Popen sibling so a single master
invocation brings the full receive pipeline online. --no-listener opts
out for operators who want to run the listener on a different host (or
under their own systemd unit).

Listener bind host / port come from DECNET_LISTENER_HOST and
DECNET_SWARM_SYSLOG_PORT — both seedable from /etc/decnet/decnet.ini.
PID at $(pid_dir)/listener.pid so operators can kill/restart manually.

decnet.ini.example ships alongside env.config.example as the
documented surface for the new role-scoped config. Mode, forwarder
targets, listener bind, and master ports all live there — no more
memorizing flag trees.

Extends tests/test_auto_spawn.py with two swarmctl cases: listener is
spawned with the expected argv + PID file, and --no-listener suppresses.

2026-04-19 03:25:40 -04:00

2.8 KiB

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