Better handling of environment variable strings.
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jpmeijers
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d1168a50f9
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b1216374d8
@ -2,15 +2,18 @@
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##Required global variables
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* GW_ID required
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* GW_KEY required
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* GW_CONTACT_EMAIL required - default an empty string
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The gateway owner's contact information.
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This gateway ID and gateway Key for TTN will be used to fetch the gateway's information form the TTN console. When SERVER_TTN is true, this will also be used to conenct and forward packets to TTN.
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##Optional global variables
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* GW_CONTACT_EMAIL optional - default an empty string
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The gateway owner's contact information. Will be overridden by the value from the TTN console.
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* GW_DESCRIPTION optional - default an empty string
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A description of this gateway. Will be overridden by the value from the TTN console.
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* GW_RESET_PIN - default 22
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The physical pin number on the Raspberry Pi to which the concentrator's reset is connected. If you followed the [TTN-ZH instruction](https://github.com/ttn-zh/ic880a-gateway/wiki), or used [Gonzalo Casas' backplane board](https://www.tindie.com/stores/gnz/), this is most likely pin number 22. As pin 22 is the default value, you do not need to define it in this case.
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The physical pin number on the Raspberry Pi to which the concentrator's reset is connected. See the [README](README.md) file for a description and a list of common values.
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* GW_GPS optional - default False
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* If True, use the hardware GPS.
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* If False,
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* If true, use the hardware GPS.
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* If false,
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use either fake gps if a location was configured in the TTN console,
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otherwise try using fake gps with the reference location as set via environment variables,
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otherwise don't send coordinates.
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@ -22,10 +25,16 @@
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The longitude to use for fake gps if the coordinates are not set in the TTN console.
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* GW_REF_ALTITUDE optional - default 0
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The altitude to use for fake gps if the coordinates are not set in the TTN console.
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* GW_FWD_CRC_ERR optional - default false
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Forward packets with an invalid CRC.
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* GW_FWD_CRC_VAL optional - default true.
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Forward packets with a valid CRC.
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* GW_ANTENNA_GAIN optional - default 0.
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Set this to the dBd gain of your antenna. The dBd value is the dBi value minus 2.15dB, ie. dBd = dBi-2.15. This is used to reduce the TX power of the concentrator to stay within the legal limits.
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##Server variables
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All server variables are optional, but when a server is enabled, it is recommended to set all variables to configure it completely.
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* SERVER_TTN optional - default True
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* SERVER_TTN optional - default true
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Should the gateway connect to the TTN backend
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* SERVER_1_ENABLED optional - default false
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@ -55,6 +64,10 @@ All server variables are optional, but when a server is enabled, it is recommend
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* SERVER_3_GWKEY
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* SERVER_3_DOWNLINK - default false
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## Note about boolean values
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Use `true` and `false` as lower case words to enable or disable features via environment variables. Any other format will not be interpreted correctly.
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#Logal debugging
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```
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docker run --device /dev/ttyAMA0:/dev/ttyAMA0 --device /dev/mem:/dev/mem --privileged -e GW_TYPE="imst-ic880a-spi" -e GW_DESCRIPTION="test gateway" -e GW_CONTACT_EMAIL="" -e GW_ID="" -e GW_KEY="" newforwarder
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60
run.py
60
run.py
@ -76,7 +76,7 @@ print ("*** Fetching config from TTN account server")
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print ("*******************")
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# Define default configs
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description = ""
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description = os.getenv('GW_DESCRIPTION', "")
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placement = ""
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latitude = os.getenv('GW_REF_LATITUDE', 0)
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longitude = os.getenv('GW_REF_LONGITUDE', 0)
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@ -164,23 +164,37 @@ gateway_conf = {}
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gateway_conf['gateway_ID'] = my_eui
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gateway_conf['contact_email'] = os.getenv('GW_CONTACT_EMAIL', "")
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gateway_conf['description'] = description
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gateway_conf['forward_crc_error'] = True
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gateway_conf['forward_crc_valid'] = True
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gateway_conf['antenna_gain'] = float(os.getenv('GW_ANTENNA_GAIN', 0))
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if(os.getenv('GW_FWD_CRC_ERR', False)=="true"):
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#default is False
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gateway_conf['forward_crc_error'] = True
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if(os.getenv('GW_FWD_CRC_VAL', True)=="false"):
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#default is True
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gateway_conf['forward_crc_valid'] = False
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# Parse GW_GPS env var. It is a string, we need a boolean.
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gw_gps = os.getenv('GW_GPS', False)
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if(gw_gps=="true"):
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gw_gps = True
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else:
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gw_gps = False
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# Use hardware GPS
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if(os.getenv('GW_GPS', False)==True):
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if(gw_gps):
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print ("Using real GPS")
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gateway_conf['gps'] = True
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gateway_conf['fake_gps'] = False
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gateway_conf['gps_tty_path'] = os.getenv('GW_GPS_PORT', "/dev/ttyAMA0")
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# Use fake GPS with coordinates from TTN
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elif(os.getenv('GW_GPS', False)==False and latitude!=0 and longitude!=0):
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elif(gw_gps==False and latitude!=0 and longitude!=0):
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print ("Using fake GPS")
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gateway_conf['gps'] = True
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gateway_conf['fake_gps'] = True
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gateway_conf['ref_latitude'] = latitude
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gateway_conf['ref_longitude'] = longitude
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gateway_conf['ref_altitude'] = altitude
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gateway_conf['ref_latitude'] = float(latitude)
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gateway_conf['ref_longitude'] = float(longitude)
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gateway_conf['ref_altitude'] = float(altitude)
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# No GPS coordinates
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else:
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print ("Not sending coordinates")
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@ -192,7 +206,7 @@ else:
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gateway_conf['servers'] = []
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# Add TTN server
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if(os.getenv('SERVER_TTN', True)):
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if(os.getenv('SERVER_TTN', True)!="false"):
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server = {}
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server['serv_type'] = "ttn"
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server['server_address'] = router
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@ -203,7 +217,7 @@ if(os.getenv('SERVER_TTN', True)):
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gateway_conf['servers'].append(server)
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# Add up to 3 additional servers
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if(os.getenv('SERVER_1_ENABLED', False)):
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if(os.getenv('SERVER_1_ENABLED', "false")=="true"):
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server = {}
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if(os.getenv('SERVER_1_TYPE', "semtech")=="ttn"):
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server['serv_type'] = "ttn"
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@ -212,10 +226,7 @@ if(os.getenv('SERVER_1_ENABLED', False)):
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server['server_address'] = os.environ.get("SERVER_1_ADDRESS")
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server['serv_port_up'] = int(os.environ.get("SERVER_1_PORTUP"))
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server['serv_port_down'] = int(os.environ.get("SERVER_1_PORTDOWN"))
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if(os.getenv('SERVER_1_ENABLED', "false")=="true"):
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server['serv_enabled'] = True
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else:
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server['serv_enabled'] = False
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if(os.getenv('SERVER_1_DOWNLINK', "false")=="true"):
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server['serv_down_enabled'] = True
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else:
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@ -226,15 +237,12 @@ if(os.getenv('SERVER_2_ENABLED', False)):
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server = {}
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if(os.getenv('SERVER_2_TYPE', "semtech")=="ttn"):
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server['serv_type'] = "ttn"
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server['server_address'] = os.environ.get("SERVER_2_ADDRESS")
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server['serv_port_up'] = os.environ.get("SERVER_2_PORTUP")
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server['serv_port_down'] = os.environ.get("SERVER_2_PORTDOWN")
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server['serv_gw_id'] = os.environ.get("SERVER_2_GWID")
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server['serv_gw_key'] = os.environ.get("SERVER_2_GWKEY")
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if(os.getenv('SERVER_2_ENABLED', "false")=="true"):
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server['server_address'] = os.environ.get("SERVER_2_ADDRESS")
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server['serv_port_up'] = int(os.environ.get("SERVER_2_PORTUP"))
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server['serv_port_down'] = int(os.environ.get("SERVER_2_PORTDOWN"))
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server['serv_enabled'] = True
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else:
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server['serv_enabled'] = False
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if(os.getenv('SERVER_2_DOWNLINK', "false")=="true"):
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server['serv_down_enabled'] = True
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else:
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@ -245,20 +253,16 @@ if(os.getenv('SERVER_3_ENABLED', False)):
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server = {}
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if(os.getenv('SERVER_3_TYPE', "semtech")=="ttn"):
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server['serv_type'] = "ttn"
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server['server_address'] = os.environ.get("SERVER_3_ADDRESS")
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server['serv_port_up'] = os.environ.get("SERVER_3_PORTUP")
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server['serv_port_down'] = os.environ.get("SERVER_3_PORTDOWN")
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server['serv_gw_id'] = os.environ.get("SERVER_3_GWID")
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server['serv_gw_key'] = os.environ.get("SERVER_3_GWKEY")
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if(os.getenv('SERVER_3_ENABLED', "false")=="true"):
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server['server_address'] = os.environ.get("SERVER_3_ADDRESS")
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server['serv_port_up'] = int(os.environ.get("SERVER_3_PORTUP"))
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server['serv_port_down'] = int(os.environ.get("SERVER_3_PORTDOWN"))
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server['serv_enabled'] = True
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else:
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server['serv_enabled'] = False
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if(os.getenv('SERVER_3_DOWNLINK', "false")=="true"):
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server['serv_down_enabled'] = True
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else:
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server['serv_down_enabled'] = False
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gateway_conf['servers'].append(server)
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@ -268,6 +272,10 @@ local_conf = {'gateway_conf': gateway_conf}
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with open('local_conf.json', 'w') as the_file:
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the_file.write(json.dumps(local_conf, indent=4))
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# TODO: Cayenne monitoring script
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# Endless loop to reset and restart packet forwarder
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while True:
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# Reset the gateway board - this only works for the Raspberry Pi.
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