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fleetd/deploy/bridged.service
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kevin 22ad24db6c
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CB-511: give workers a toolchain — propagate the daemon PATH, add profile env:
Workers could not run `mvn` or `java`. Every delegated task that asked for a
build came back "mvn is not on PATH", and the worker was right.

Root cause: HerdrPeerLauncher seeded the worker environment with an EMPTY map,
so bridged passed only the vars it explicitly set (OPENCODE_CONFIG, GITEA_TOKEN,
ANTHROPIC_*) and never PATH. herdr merges that map into its own process env, so
a worker inherited whatever PATH the herdr SERVER was started with. On this host
that server (pid 79870, PPID 1) had been up since Jul 4 with a PATH containing
neither the JDK nor Maven. Confirmed on a live worker: its PATH was byte-identical
to herdr's, and the only var bridged had contributed was OPENCODE_CONFIG.

The failure was invisible and non-deterministic: the fleet's capabilities
depended on how a long-lived daemon happened to be launched weeks earlier. There
are three herdr processes on this box with three different PATHs; the one owning
the socket is the one without a toolchain. bridged itself HAD Maven on PATH the
whole time — it just never passed it on.

It also quietly contradicted the project's own principle that "a worker is a
full peer of the primary", and the implementer skill's instruction to build,
commit and open a PR. Every delegation so far has depended on the primary
running the build gate.

Fix: baseEnv(cfg) seeds each worker with the daemon's own PATH, then applies the
profile's new optional env: map. Adapter-specific vars are layered on top and
therefore win — that ordering is load-bearing, not incidental: it stops an env:
entry from overwriting ANTHROPIC_BASE_URL and slipping past SubscriptionGuard,
which is checked against the profile's baseUrl alone. Pinned by a test.

Because the default is now the daemon's PATH, both supervision units set PATH
explicitly — launchd and systemd do not source a login shell, so under CB-504
the daemon (and every worker) would otherwise get a bare /usr/bin:/bin and this
bug would silently return in production.

324 tests (was 321): daemon-PATH propagation, profile env: passthrough including
an explicit PATH override, and the guard-bypass ordering.

Verified live: daemon restarted, worker spawned, and asked to run the tools —
"Apache Maven 3.9.16", "java version 25.0.2". Previously both were absent.
2026-08-01 22:34:30 +07:00

62 lines
2.5 KiB
Desktop File

# CB-504 — systemd unit for bridged (Linux).
#
# The macOS launchd agent (deploy/dev.ltms.bridged.plist) is the supervision target for the
# current single-host deployment. This unit exists for the per-host gateways CB-308 introduces,
# which will run on Linux.
#
# Install (user service — bridged drives the user's herdr, not a system daemon):
# mkdir -p ~/.config/systemd/user
# cp deploy/bridged.service ~/.config/systemd/user/
# # edit ExecStart / WorkingDirectory / Environment below, then:
# systemctl --user daemon-reload
# systemctl --user enable --now bridged
# journalctl --user -u bridged -f
[Unit]
Description=bridged — claude-bridge message server
Documentation=https://git.ltms.dev/lms/claude-bridge/wiki
# Ordering only: herdr is a user process and its socket may appear after us. This is advisory —
# bridged retries the herdr socket rather than exiting, which is what actually makes a late
# socket survivable. Do NOT add Requires=: a herdr restart must not take bridged down with it.
After=herdr.service
Wants=herdr.service
[Service]
Type=simple
WorkingDirectory=%h/src/claude-bridge/bridged
ExecStart=/usr/lib/jvm/temurin-25-jdk/bin/java -jar target/bridged.jar bridged.yaml
Environment=HERDR_SOCKET_PATH=%h/.config/herdr/herdr.sock
# PATH matters more than it looks (CB-511): bridged propagates its own PATH to every worker it
# spawns, so this line decides whether the fleet can run a build at all. systemd does not source a
# login shell, so without it the daemon — and every worker — gets a bare default with no JDK/Maven.
Environment=PATH=/usr/lib/jvm/temurin-25-jdk/bin:/usr/share/maven/bin:/usr/local/bin:/usr/bin:/bin
# Secrets are NOT set here — this file is committed. Put the API/worker tokens in a private
# drop-in that systemd reads with restrictive permissions:
# systemctl --user edit bridged → [Service] / Environment=BRIDGED_API_TOKEN=...
# or point EnvironmentFile at a 0600 file:
# EnvironmentFile=%h/.config/bridged/env
Restart=on-failure
RestartSec=10s
# A bad config (e.g. a non-loopback bind without token auth) makes bridged fail fast by design.
# Give up rather than restart-loop on a permanent error.
StartLimitBurst=5
StartLimitIntervalSec=120
# The daemon reads the repo, writes worktrees, and talks to a Unix socket — it needs no more.
NoNewPrivileges=true
PrivateTmp=true
ProtectSystem=strict
ProtectHome=read-write
ProtectKernelTunables=true
ProtectControlGroups=true
RestrictSUIDSGID=true
StandardOutput=journal
StandardError=journal
SyslogIdentifier=bridged
[Install]
WantedBy=default.target