error message when no BT device not helpful

[shawaj]

User Story
As a developer, I should immediately be able to identify when BT is missing and the root cause from glancing at the logs.

Notes

 gateway-config  2021-11-30 17:34:30,436 - [DEBUG] - __main__ - (__main__.py).validate_env -- gatewayconfig/__main__.py:(50) - Starting with the following ENV:
 gateway-config          SENTRY_DSN=None
 gateway-config          BALENA_APP_NAME=HELIUM-TESTNET-ROCKPI
 gateway-config          BALENA_DEVICE_UUID=963415259c442625fc5f5ac241f48578
 gateway-config          VARIANT=NEBHNT-HHRK4
 gateway-config          ETH0_MAC_ADDRESS_FILEPATH=/sys/class/net/eth0/address
 gateway-config          WLAN0_MAC_ADDRESS_FILEPATH=/sys/class/net/wlan0/address
 gateway-config          DIAGNOSTICS_JSON_URL=http://localhost/json
 gateway-config          ETHERNET_IS_ONLINE_FILEPATH=/sys/class/net/eth0/carrier
 gateway-config          FIRMWARE_VERSION=2021.11.26.1-4
 gateway-config  
 gateway-config  2021-11-30 17:34:30,524 - [WARNING] - gatewayconfig.gatewayconfig_app - (gatewayconfig_app.py).init_gpio -- /opt/gatewayconfig/gatewayconfig_app.py:(89) - LEDs and buttons are disabled. GPIO not yet supported on this device.
 gateway-config  2021-11-30 17:34:30,527 - [DEBUG] - gatewayconfig.gatewayconfig_app - (gatewayconfig_app.py).__init__ -- /opt/gatewayconfig/gatewayconfig_app.py:(43) - Read eth0 mac address BA:22:61:43:DE:1F and wlan0 20:50:E7:1A:37:DB
 gateway-config  2021-11-30 17:34:30,613 - [INFO] - hm_pyhelper.miner_param - (miner_param.py).run_gateway_mfr -- /opt/venv/lib/python3.7/site-packages/hm_pyhelper/miner_param.py:(42) - gateway_mfr response stdout: b'{\n  "key": "112hgXjLr89BbtRJgoVpFNwAyCNmtwRi3mRU37fhNWGoBRZxcfuT",\n  "name": "powerful-pecan-finch",\n  "slot": 0\n}\n'
 gateway-config  2021-11-30 17:34:30,614 - [INFO] - hm_pyhelper.miner_param - (miner_param.py).run_gateway_mfr -- /opt/venv/lib/python3.7/site-packages/hm_pyhelper/miner_param.py:(44) - gateway_mfr response stderr: b''
 gateway-config  2021-11-30 17:34:30,625 - [DEBUG] - gatewayconfig.bluetooth.characteristics.diagnostics_characteristic - (diagnostics_characteristic.py).new_diagnostics_proto -- /opt/gatewayconfig/bluetooth/characteristics/diagnostics_characteristic.py:(53) - New Diagnostics Proto
 gateway-config  Traceback (most recent call last):
 gateway-config    File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
 gateway-config      "__main__", mod_spec)
 gateway-config    File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
 gateway-config      exec(code, run_globals)
 gateway-config    File "gatewayconfig/__main__.py", line 74, in <module>
 gateway-config      main()
 gateway-config    File "gatewayconfig/__main__.py", line 29, in main
 gateway-config      start()
 gateway-config    File "gatewayconfig/__main__.py", line 63, in start
 gateway-config      FIRMWARE_VERSION
 gateway-config    File "/opt/gatewayconfig/gatewayconfig_app.py", line 46, in __init__
 gateway-config      self.bluetooth_services_processor = BluetoothServicesProcessor(eth0_mac_address, wlan0_mac_address, firmware_version, ethernet_is_online_filepath, self.shared_state)
 gateway-config    File "/opt/gatewayconfig/processors/bluetooth_services_processor.py", line 14, in __init__
 gateway-config      self.register()
 gateway-config    File "/opt/lib/cputemp/service.py", line 97, in register
 gateway-config      self.bus.get_object(BLUEZ_SERVICE_NAME, adapter),
 gateway-config    File "/opt/venv/lib/python3.7/site-packages/dbus/bus.py", line 243, in get_object
 gateway-config      follow_name_owner_changes=follow_name_owner_changes)
 gateway-config    File "/opt/venv/lib/python3.7/site-packages/dbus/proxies.py", line 246, in __init__
 gateway-config      _dbus_bindings.validate_object_path(object_path)
 gateway-config  TypeError: validate_object_path() argument 1 must be str, not None
 gateway-config  /opt/start-gateway-config.sh: 14: /opt/start-gateway-config.sh: cannot create /sys/kernel/debug/bluetooth/hci0/adv_channel_map: Directory nonexistent
 gateway-config  /opt/start-gateway-config.sh: 16: /opt/start-gateway-config.sh: cannot create /sys/kernel/debug/bluetooth/hci0/adv_min_interval: Directory nonexistent
 gateway-config  /opt/start-gateway-config.sh: 17: /opt/start-gateway-config.sh: cannot create /sys/kernel/debug/bluetooth/hci0/adv_max_interval: Directory nonexistent
 gateway-config  [bluetooth]# pairable off
 gateway-config  No default controller available
 gateway-config  [bluetooth]# quit
method return time=1638293733.062661 sender=org.freedesktop.DBus -> destination=:1.24 serial=3 reply_serial=2
 gateway-config     array [
 gateway-config        string "org.freedesktop.DBus"
 gateway-config        string "com.helium.Miner"
 gateway-config        string ":1.24"
 gateway-config        string ":1.6"
 gateway-config     ]
 gateway-config  DBus is now accepting connections
 gateway-config  2021-11-30 17:35:33,848 - [DEBUG] - __main__ - (__main__.py).validate_env -- gatewayconfig/__main__.py:(50) - Starting with the following ENV:
 gateway-config          SENTRY_DSN=None
 gateway-config          BALENA_APP_NAME=HELIUM-TESTNET-ROCKPI
 gateway-config          BALENA_DEVICE_UUID=963415259c442625fc5f5ac241f48578
 gateway-config          VARIANT=NEBHNT-HHRK4
 gateway-config          ETH0_MAC_ADDRESS_FILEPATH=/sys/class/net/eth0/address
 gateway-config          WLAN0_MAC_ADDRESS_FILEPATH=/sys/class/net/wlan0/address
 gateway-config          DIAGNOSTICS_JSON_URL=http://localhost/json
 gateway-config          ETHERNET_IS_ONLINE_FILEPATH=/sys/class/net/eth0/carrier
 gateway-config          FIRMWARE_VERSION=2021.11.26.1-4
 gateway-config  
 gateway-config  2021-11-30 17:35:33,915 - [WARNING] - gatewayconfig.gatewayconfig_app - (gatewayconfig_app.py).init_gpio -- /opt/gatewayconfig/gatewayconfig_app.py:(89) - LEDs and buttons are disabled. GPIO not yet supported on this device.
 gateway-config  2021-11-30 17:35:33,917 - [DEBUG] - gatewayconfig.gatewayconfig_app - (gatewayconfig_app.py).__init__ -- /opt/gatewayconfig/gatewayconfig_app.py:(43) - Read eth0 mac address BA:22:61:43:DE:1F and wlan0 20:50:E7:1A:37:DB
 gateway-config  2021-11-30 17:35:34,001 - [INFO] - hm_pyhelper.miner_param - (miner_param.py).run_gateway_mfr -- /opt/venv/lib/python3.7/site-packages/hm_pyhelper/miner_param.py:(42) - gateway_mfr response stdout: b'{\n  "key": "112hgXjLr89BbtRJgoVpFNwAyCNmtwRi3mRU37fhNWGoBRZxcfuT",\n  "name": "powerful-pecan-finch",\n  "slot": 0\n}\n'
 gateway-config  2021-11-30 17:35:34,002 - [INFO] - hm_pyhelper.miner_param - (miner_param.py).run_gateway_mfr -- /opt/venv/lib/python3.7/site-packages/hm_pyhelper/miner_param.py:(44) - gateway_mfr response stderr: b''
 gateway-config  2021-11-30 17:35:34,011 - [DEBUG] - gatewayconfig.bluetooth.characteristics.diagnostics_characteristic - (diagnostics_characteristic.py).new_diagnostics_proto -- /opt/gatewayconfig/bluetooth/characteristics/diagnostics_characteristic.py:(53) - New Diagnostics Proto
 gateway-config  Traceback (most recent call last):
 gateway-config    File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
 gateway-config      "__main__", mod_spec)
 gateway-config    File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
 gateway-config      exec(code, run_globals)
 gateway-config    File "gatewayconfig/__main__.py", line 74, in <module>
 gateway-config      main()
 gateway-config    File "gatewayconfig/__main__.py", line 29, in main
 gateway-config      start()
 gateway-config    File "gatewayconfig/__main__.py", line 63, in start
 gateway-config      FIRMWARE_VERSION
 gateway-config    File "/opt/gatewayconfig/gatewayconfig_app.py", line 46, in __init__
 gateway-config      self.bluetooth_services_processor = BluetoothServicesProcessor(eth0_mac_address, wlan0_mac_address, firmware_version, ethernet_is_online_filepath, self.shared_state)
 gateway-config    File "/opt/gatewayconfig/processors/bluetooth_services_processor.py", line 14, in __init__
 gateway-config      self.register()
 gateway-config    File "/opt/lib/cputemp/service.py", line 97, in register
 gateway-config      self.bus.get_object(BLUEZ_SERVICE_NAME, adapter),
 gateway-config    File "/opt/venv/lib/python3.7/site-packages/dbus/bus.py", line 243, in get_object
 gateway-config      follow_name_owner_changes=follow_name_owner_changes)
 gateway-config    File "/opt/venv/lib/python3.7/site-packages/dbus/proxies.py", line 246, in __init__
 gateway-config      _dbus_bindings.validate_object_path(object_path)
 gateway-config  TypeError: validate_object_path() argument 1 must be str, not None

Acceptance criteria

• hm-diag should detect no bluetooth and provide helpful error message
• hm-config should check BT via diagnostics before initializing BT
• If no BT, hm-config should log helpful message and startup normally without BT
• Tested on Raspberry Pi and ROCK Pi
• Create follow-up ticket for on-screen error message and recovering when BT breaks after initial startup

Reference

• Related with: On-screen error message and recovering when BT breaks after initial startup #161