ske087
eaf3f394fc
A freshly flashed device needed manual pip work before the reader would start. It now checks its dependencies, installs whatever is missing, and carries on. - bootstrap.py: import check, pip invocation, and a re-check that does not trust pip's exit code alone. Installs nothing when the libraries are already present, so a normal start does no network work. - --wheel-dir installs from local wheels with --no-index, for devices with no internet. --no-install-deps opts out entirely. - Outside a venv pip gets --break-system-packages, which Debian and Raspberry Pi OS require before touching the system Python. - reload_library() re-imports rdm6300 when it was installed at runtime, since the module-level import already ran and failed. - A failed install reports exit 2 and the exact manual command rather than raising; stdout is flushed so the explanation is not printed after the error when piped.
56 lines
1.7 KiB
Desktop File
56 lines
1.7 KiB
Desktop File
[Unit]
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Description=RDM card reader HTTP bridge (serves card taps for web login)
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Documentation=file:/opt/rdm-card-reader/README.md
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# The serial device must exist before we start, otherwise the reader opens the
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# wrong tty or none at all.
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After=dev-serial.device network-online.target
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Wants=network-online.target
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# Do not restart forever if the reader is genuinely absent. These are [Unit]
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# options, not [Service] - systemd ignores them in the wrong section.
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StartLimitIntervalSec=60
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StartLimitBurst=5
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[Service]
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Type=simple
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User=rdmcard
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Group=dialout
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WorkingDirectory=/opt/rdm-card-reader
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# --serve exposes the card on http://127.0.0.1:8765/api/card
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# --port points at the udev alias, so the reader is the same device every boot.
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# Autodetect refuses to guess if more than one USB adapter is present, which is
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# the safe behaviour: a wrong guess means authenticating the wrong person.
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# Add --wheel-dir /opt/rdm-card-reader/wheels to install dependencies offline.
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ExecStart=/opt/rdm-card-reader/.venv/bin/rdm-card-reader \
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--serve \
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--port /dev/rdm-reader \
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--mode login \
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--allow-origin https://your.web.app
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Restart=always
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RestartSec=3
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# The bridge only needs to read the serial port and listen on loopback.
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NoNewPrivileges=true
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PrivateTmp=true
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ProtectSystem=strict
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ProtectHome=true
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ProtectKernelTunables=true
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ProtectKernelModules=true
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ProtectControlGroups=true
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RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX
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RestrictNamespaces=true
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LockPersonality=true
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MemoryDenyWriteExecute=true
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DeviceAllow=/dev/rdm-reader rw
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DevicePolicy=closed
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# stdout/stderr go here; watch with: journalctl -u rdm-card-reader -f
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StandardOutput=journal
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StandardError=journal
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SyslogIdentifier=rdm-card-reader
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[Install]
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WantedBy=multi-user.target
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