ERS Kafka message topic

[jamesturner246]

Description

Subscribe to erskafka-reporting and save messages.

Subscription uses a regex "^(control.*.process_manager|erskafka-reporting)". I wasn't sure if it was worth having two consumers for each topic (maybe threaded), versus having one consumer with an ever growing topic regex. Maybe a cleaner way of doing that.

A new topic field is added to the message model to discriminate (255 chars is the max length of topic name (actually it's 249 now) ).

Fixes #165

Type of change

• Documentation (non-breaking change that adds or improves the documentation)
• New feature (non-breaking change which adds functionality)
• Optimization (non-breaking, back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (whatever its nature)

Key checklist

• All tests pass (eg. python -m pytest)
• The documentation builds and looks OK (eg. python -m sphinx -b html docs docs/build)
• Pre-commit hooks run successfully (eg. pre-commit run --all-files)

Further checks

• Code is commented, particularly in hard-to-understand areas
• Tests added or an issue has been opened to tackle that in the future. (Indicate issue here: # (issue))

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 41.66667% with 7 lines in your changes missing coverage. Please review.

Project coverage is 81.15%. Comparing base (fb63f67) to head (1e838ce).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
main/management/commands/kafka_consumer.py	0.00%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #177      +/-   ##
==========================================
+ Coverage   80.61%   81.15%   +0.53%     
==========================================
  Files          26       27       +1     
  Lines         325      329       +4     
==========================================
+ Hits          262      267       +5     
+ Misses         63       62       -1     

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