Land the `decnet bus` worker and `get_bus()` factory. Transport is a host-local UNIX-domain socket (0660, group=decnet); authz is the file mode. Wire framing is a tiny verb-line + 4-byte-BE length + orjson body. NATS-style wildcard topics (`*`, `>`). At-most-once, fire-and-forget — DB stays the source of truth. `FakeBus` / `NullBus` for tests and the disabled path. Cross-host federation is deferred to a future `--bridge-tcp` mode; DEBT-030 is master-only and unblocked.
44 lines
1.1 KiB
Desktop File
44 lines
1.1 KiB
Desktop File
[Unit]
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Description=DECNET Service Bus (host-local UNIX-socket pub/sub)
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Documentation=https://github.com/4nt11/DECNET/wiki/Service-Bus
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After=network-online.target
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Wants=network-online.target
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[Service]
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Type=simple
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User=decnet
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Group=decnet
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WorkingDirectory=/opt/decnet
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EnvironmentFile=-/opt/decnet/.env.local
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# /run/decnet is created automatically with the RuntimeDirectory= directive
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# below (mode 0755, owned by User/Group) and cleaned up on stop. The bus
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# socket is placed inside it with 0660 perms so only the decnet group can
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# connect.
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RuntimeDirectory=decnet
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RuntimeDirectoryMode=0755
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ExecStart=/opt/decnet/venv/bin/decnet bus \
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--socket /run/decnet/bus.sock \
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--group decnet
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# No privileged network operations — UNIX-domain socket only.
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CapabilityBoundingSet=
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AmbientCapabilities=
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# Security Hardening
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NoNewPrivileges=yes
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ProtectSystem=full
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ProtectHome=read-only
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PrivateTmp=yes
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ProtectKernelTunables=yes
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ProtectKernelModules=yes
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ProtectControlGroups=yes
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RestrictSUIDSGID=yes
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LockPersonality=yes
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ReadWritePaths=/run/decnet /var/log/decnet
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Restart=on-failure
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RestartSec=5
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[Install]
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WantedBy=multi-user.target
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