Common code for MeerKAT Science Data Processor services

This contains common code used by services that make up the Science Data Processor subsystem of the MeerKAT radio telescope. It includes

• A common logging setup, which examines environment variables to configure some logging options and specify a server to receive logs in Graylog format.
• An extension to argparse to receive command-line options via katsdptelstate.
• Signal handlers to restart the process and adjust log levels.
• Utilities to simplify integration with aiomonitor.
• A simple wrapper around netifaces-plus to get the IP address of a network interface.

Changelog

1.5

• Migrate the network interface utility dependency from netifaces to netifaces-plus (#41).

1.4

• Remove use of deprecated datetime.utcfromtimestamp method (#38)
• Fix unit tests on Python 3.12 (#38)
• Run tests against requirements from katsdpdockerbase (#37)

1.3

• Packaging modernisation (#34)
• Drop some old Python 2 workarounds (#34)
• Switch testing to pytest (#34)
• Fix flake8 for pre-commit
• Add --aiomonitor-webui-port command-line option (#35)

1.2

• Resolve logging destination at startup (#33)

1.1

• Add telstate_endpoint attribute to argparse result (#29)
• Add a custom log field with timestamp in microsecond precision (#21)
• Add pre-commit hooks

1.0

First public release.