Failure to start systemd service when there's no network to allow version checking

[dfgg12]

If script is started through auto_rx.service file enabled in systemd, it fails due to lack of network connection with following output:

Nov 10 11:20:45 alarm systemd[1]: Started auto_rx.
Nov 10 11:20:58 alarm auto_rx[220]: 2021-11-10 11:20:58,828 INFO:Reading configuration file...
Nov 10 11:20:58 alarm auto_rx[220]: 2021-11-10 11:20:58,875 WARNING:Config - APRS Update Rate clipped to minimum of 30 seconds. Please be respectful of other users of APRS-IS.
Nov 10 11:21:02 alarm auto_rx[220]: 2021-11-10 11:21:02,275 INFO:Config - Tested SDR #0 OK
Nov 10 11:21:02 alarm auto_rx[220]: 2021-11-10 11:21:02,307 INFO:Started Flask server on http://0.0.0.0:5000
Nov 10 11:21:02 alarm auto_rx[220]: 2021-11-10 11:21:02,315 INFO:Telemetry Logger - Started Telemetry Logger Thread.
Nov 10 11:21:02 alarm auto_rx[220]: 2021-11-10 11:21:02,338 ERROR:APRS-IS - Connection to APRS-IS Failed - [Errno -2] Name or service not known
Nov 10 11:21:02 alarm auto_rx[220]: 2021-11-10 11:21:02,347 INFO:APRS-IS - APRS Uploader Started.
Nov 10 11:21:02 alarm auto_rx[220]: 2021-11-10 11:21:02,351 INFO:OziMux - Started OziMux / Payload Summary Exporter
Nov 10 11:21:02 alarm auto_rx[220]: 2021-11-10 11:21:02,357 INFO:Sondehub Uploader - Started Sondehub Uploader Thread.
Nov 10 11:21:02 alarm auto_rx[220]: 2021-11-10 11:21:02,455 ERROR:Sondehub Uploader - Upload Failed: HTTPSConnectionPool(host='api.v2.sondehub.org', port=443): Max retries exceeded with url: /listeners (Caused by NewConnectionError('
Nov 10 11:21:02 alarm auto_rx[220]: --- Logging error ---
Nov 10 11:21:02 alarm auto_rx[220]: Traceback (most recent call last):
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connection.py", line 174, in _new_conn
Nov 10 11:21:02 alarm auto_rx[220]: conn = connection.create_connection(
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/util/connection.py", line 73, in create_connection
Nov 10 11:21:02 alarm auto_rx[220]: for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/socket.py", line 954, in getaddrinfo
Nov 10 11:21:02 alarm auto_rx[220]: for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
Nov 10 11:21:02 alarm auto_rx[220]: socket.gaierror: [Errno -2] Name or service not known
Nov 10 11:21:02 alarm auto_rx[220]: During handling of the above exception, another exception occurred:
Nov 10 11:21:02 alarm auto_rx[220]: Traceback (most recent call last):
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connectionpool.py", line 699, in urlopen
Nov 10 11:21:02 alarm auto_rx[220]: httplib_response = self._make_request(
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connectionpool.py", line 382, in _make_request
Nov 10 11:21:02 alarm auto_rx[220]: self._validate_conn(conn)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connectionpool.py", line 1010, in _validate_conn
Nov 10 11:21:02 alarm auto_rx[220]: conn.connect()
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connection.py", line 358, in connect
Nov 10 11:21:02 alarm auto_rx[220]: conn = self._new_conn()
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connection.py", line 186, in _new_conn
Nov 10 11:21:02 alarm auto_rx[220]: raise NewConnectionError(
Nov 10 11:21:02 alarm auto_rx[220]: urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPSConnection object at 0xb43ac0d0>: Failed to establish a new connection: [Errno -2] Name or service not known
Nov 10 11:21:02 alarm auto_rx[220]: During handling of the above exception, another exception occurred:
Nov 10 11:21:02 alarm auto_rx[220]: Traceback (most recent call last):
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/adapters.py", line 439, in send
Nov 10 11:21:02 alarm auto_rx[220]: resp = conn.urlopen(
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connectionpool.py", line 755, in urlopen
Nov 10 11:21:02 alarm auto_rx[220]: retries = retries.increment(
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/util/retry.py", line 574, in increment
Nov 10 11:21:02 alarm auto_rx[220]: raise MaxRetryError(_pool, url, error or ResponseError(cause))
Nov 10 11:21:02 alarm auto_rx[220]: urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='raw.githubusercontent.com', port=443): Max retries exceeded with url: /projecthorus/radiosonde_auto_rx/master/auto_rx/autorx/init.py (C>
Nov 10 11:21:02 alarm auto_rx[220]: During handling of the above exception, another exception occurred:
Nov 10 11:21:02 alarm auto_rx[220]: Traceback (most recent call last):
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/autorx/utils.py", line 71, in get_autorx_version
Nov 10 11:21:02 alarm auto_rx[220]: _r = requests.get(version_url, timeout=5)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/api.py", line 75, in get
Nov 10 11:21:02 alarm auto_rx[220]: return request('get', url, params=params, **kwargs)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/api.py", line 61, in request
Nov 10 11:21:02 alarm auto_rx[220]: return session.request(method=method, url=url, **kwargs)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/sessions.py", line 542, in request
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/sessions.py", line 542, in request
Nov 10 11:21:02 alarm auto_rx[220]: resp = self.send(prep, **send_kwargs)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/sessions.py", line 655, in send
Nov 10 11:21:02 alarm auto_rx[220]: r = adapter.send(request, **kwargs)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/adapters.py", line 516, in send
Nov 10 11:21:02 alarm auto_rx[220]: raise ConnectionError(e, request=request)
Nov 10 11:21:02 alarm auto_rx[220]: requests.exceptions.ConnectionError: HTTPSConnectionPool(host='raw.githubusercontent.com', port=443): Max retries exceeded with url: /projecthorus/radiosonde_auto_rx/master/auto_rx/autorx/init.py>
Nov 10 11:21:02 alarm auto_rx[220]: During handling of the above exception, another exception occurred:
Nov 10 11:21:02 alarm auto_rx[220]: Traceback (most recent call last):
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/logging/init.py", line 1083, in emit
Nov 10 11:21:02 alarm auto_rx[220]: msg = self.format(record)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/logging/init.py", line 927, in format
Nov 10 11:21:02 alarm auto_rx[220]: return fmt.format(record)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/logging/init.py", line 663, in format
Nov 10 11:21:02 alarm auto_rx[220]: record.message = record.getMessage()
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/logging/init.py", line 367, in getMessage
Nov 10 11:21:02 alarm auto_rx[220]: msg = msg % self.args
Nov 10 11:21:02 alarm auto_rx[220]: TypeError: not all arguments converted during string formatting
Nov 10 11:21:02 alarm auto_rx[220]: Call stack:
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/auto_rx.py", line 1011, in
Nov 10 11:21:02 alarm auto_rx[220]: main()
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/auto_rx.py", line 974, in main
Nov 10 11:21:02 alarm auto_rx[220]: version_startup_check()
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/autorx/utils.py", line 132, in version_startup_check
Nov 10 11:21:02 alarm auto_rx[220]: _newer_version = check_autorx_versions()
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/autorx/utils.py", line 100, in check_autorx_versions
Nov 10 11:21:02 alarm auto_rx[220]: _main_branch_version = get_autorx_version(AUTORX_MAIN_VERSION_URL)
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/autorx/utils.py", line 73, in get_autorx_version
Nov 10 11:21:02 alarm auto_rx[220]: logging.exception(
Nov 10 11:21:02 alarm auto_rx[220]: Message: 'Version - Error determining version from URL https://raw.githubusercontent.com/projecthorus/radiosonde_auto_rx/master/auto_rx/autorx/__init__.py'
Nov 10 11:21:02 alarm auto_rx[220]: Arguments: (ConnectionError(MaxRetryError("HTTPSConnectionPool(host='raw.githubusercontent.com', port=443): Max retries exceeded with url: /projecthorus/radiosonde_auto_rx/master/auto_rx/autorx/__ini>
Nov 10 11:21:02 alarm auto_rx[220]: --- Logging error ---
Nov 10 11:21:02 alarm auto_rx[220]: Traceback (most recent call last):
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connection.py", line 174, in _new_conn
Nov 10 11:21:02 alarm auto_rx[220]: conn = connection.create_connection(
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/util/connection.py", line 73, in create_connection
Nov 10 11:21:02 alarm auto_rx[220]: for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/socket.py", line 954, in getaddrinfo
Nov 10 11:21:02 alarm auto_rx[220]: for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
Nov 10 11:21:02 alarm auto_rx[220]: socket.gaierror: [Errno -2] Name or service not known
Nov 10 11:21:02 alarm auto_rx[220]: During handling of the above exception, another exception occurred:
Nov 10 11:21:02 alarm auto_rx[220]: Traceback (most recent call last):
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connectionpool.py", line 699, in urlopen
Nov 10 11:21:02 alarm auto_rx[220]: httplib_response = self._make_request(
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connectionpool.py", line 382, in _make_request
Nov 10 11:21:02 alarm auto_rx[220]: self._validate_conn(conn)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connectionpool.py", line 1010, in _validate_conn
Nov 10 11:21:02 alarm auto_rx[220]: conn.connect()
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connection.py", line 358, in connect
Nov 10 11:21:02 alarm auto_rx[220]: conn = self._new_conn()
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connection.py", line 186, in _new_conn
Nov 10 11:21:02 alarm auto_rx[220]: raise NewConnectionError(
Nov 10 11:21:02 alarm auto_rx[220]: urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPSConnection object at 0xb440e898>: Failed to establish a new connection: [Errno -2] Name or service not known
Nov 10 11:21:02 alarm auto_rx[220]: During handling of the above exception, another exception occurred:
Nov 10 11:21:02 alarm auto_rx[220]: Traceback (most recent call last):
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/adapters.py", line 439, in send
Nov 10 11:21:02 alarm auto_rx[220]: resp = conn.urlopen(
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/connectionpool.py", line 755, in urlopen
Nov 10 11:21:02 alarm auto_rx[220]: retries = retries.increment(
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/urllib3/util/retry.py", line 574, in increment
Nov 10 11:21:02 alarm auto_rx[220]: raise MaxRetryError(_pool, url, error or ResponseError(cause))
Nov 10 11:21:02 alarm auto_rx[220]: urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='raw.githubusercontent.com', port=443): Max retries exceeded with url: /projecthorus/radiosonde_auto_rx/testing/auto_rx/autorx/init.py (>
Nov 10 11:21:02 alarm auto_rx[220]: During handling of the above exception, another exception occurred:
Nov 10 11:21:02 alarm auto_rx[220]: Traceback (most recent call last):
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/autorx/utils.py", line 71, in get_autorx_version
Nov 10 11:21:02 alarm auto_rx[220]: _r = requests.get(version_url, timeout=5)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/api.py", line 75, in get
Nov 10 11:21:02 alarm auto_rx[220]: return request('get', url, params=params, **kwargs)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/api.py", line 61, in request
Nov 10 11:21:02 alarm auto_rx[220]: return session.request(method=method, url=url, **kwargs)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/sessions.py", line 542, in request
Nov 10 11:21:02 alarm auto_rx[220]: resp = self.send(prep, **send_kwargs)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/sessions.py", line 655, in send
Nov 10 11:21:02 alarm auto_rx[220]: r = adapter.send(request, **kwargs)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/site-packages/requests/adapters.py", line 516, in send
Nov 10 11:21:02 alarm auto_rx[220]: raise ConnectionError(e, request=request)
Nov 10 11:21:02 alarm auto_rx[220]: requests.exceptions.ConnectionError: HTTPSConnectionPool(host='raw.githubusercontent.com', port=443): Max retries exceeded with url: /projecthorus/radiosonde_auto_rx/testing/auto_rx/autorx/init.p>
Nov 10 11:21:02 alarm auto_rx[220]: During handling of the above exception, another exception occurred:
Nov 10 11:21:02 alarm auto_rx[220]: Traceback (most recent call last):
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/logging/init.py", line 1083, in emit
Nov 10 11:21:02 alarm auto_rx[220]: msg = self.format(record)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/logging/init.py", line 927, in format
Nov 10 11:21:02 alarm auto_rx[220]: return fmt.format(record)
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/logging/init.py", line 663, in format
Nov 10 11:21:02 alarm auto_rx[220]: record.message = record.getMessage()
Nov 10 11:21:02 alarm auto_rx[220]: File "/usr/lib/python3.9/logging/init.py", line 367, in getMessage
Nov 10 11:21:02 alarm auto_rx[220]: msg = msg % self.args
Nov 10 11:21:02 alarm auto_rx[220]: TypeError: not all arguments converted during string formatting
Nov 10 11:21:02 alarm auto_rx[220]: Call stack:
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/auto_rx.py", line 1011, in
Nov 10 11:21:02 alarm auto_rx[220]: main()
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/auto_rx.py", line 974, in main
Nov 10 11:21:02 alarm auto_rx[220]: version_startup_check()
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/autorx/utils.py", line 132, in version_startup_check
Nov 10 11:21:02 alarm auto_rx[220]: _newer_version = check_autorx_versions()
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/autorx/utils.py", line 101, in check_autorx_versions
Nov 10 11:21:02 alarm auto_rx[220]: _testing_branch_version = get_autorx_version(AUTORX_TESTING_VERSION_URL)
Nov 10 11:21:02 alarm auto_rx[220]: File "/root/radiosonde_auto_rx/auto_rx/autorx/utils.py", line 73, in get_autorx_version
Nov 10 11:21:02 alarm auto_rx[220]: logging.exception(
Nov 10 11:21:02 alarm auto_rx[220]: Message: 'Version - Error determining version from URL https://raw.githubusercontent.com/projecthorus/radiosonde_auto_rx/testing/auto_rx/autorx/__init__.py'
Nov 10 11:21:02 alarm auto_rx[220]: Arguments: (ConnectionError(MaxRetryError("HTTPSConnectionPool(host='raw.githubusercontent.com', port=443): Max retries exceeded with url: /projecthorus/radiosonde_auto_rx/testing/auto_rx/autorx/__in>
Nov 10 11:21:02 alarm auto_rx[220]: 2021-11-10 11:21:02,582 ERROR:Version - Could not determine latest versions.
Nov 10 11:21:02 alarm auto_rx[220]: 2021-11-10 11:21:02,584 INFO:Task Manager - SDR #0 has been allocated to Scanner.
Nov 10 11:21:05 alarm auto_rx[220]: 2021-11-10 11:21:05,927 INFO:Scanner #0 - Starting Scanner Thread
Nov 10 11:21:05 alarm auto_rx[220]: 2021-11-10 11:21:05,934 INFO:Scanner #0 - Running frequency scan.
Nov 10 11:21:18 alarm auto_rx[220]: 2021-11-10 11:21:18,719 INFO:Sondehub Uploader - Uploaded station information to Sondehub.

Thankfully - solution to that is to add After=network.target to service file to allow network interfaces to get up properly.

Therefore, I've prepared patch for this, which should follow this report with PR.