Getting topic from env var with a reasonable default

[jpodivin]

Now we can set the topic using environment variables. This is very useful for containerized deployment.

[gemini-code-assist]

Summary of Changes

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This pull request enhances the application's configuration flexibility by allowing the message topic to be set via an environment variable. This change significantly improves adaptability for containerized deployments, enabling easier management and overriding of the topic without requiring code modifications, thereby streamlining deployment processes and enhancing maintainability.

Highlights

• Environment Variable Configuration: The TOPIC variable, previously hardcoded, can now be configured using the LD_TOPIC environment variable. A new default value of "org.fedoraproject.prod.logdetective.analysis" is provided if the environment variable is not set.

Changelog

• src/logdetective_packit/main.py
  • Updated the TOPIC variable to read its value from the LD_TOPIC environment variable, falling back to a new default if not present.

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[gemini-code-assist]

Code Review

This pull request makes the messaging topic configurable via the LD_TOPIC environment variable and sets a new, more specific default topic name. The implementation is straightforward and consistent with how other configuration variables are handled in the project. I have reviewed the changes and have no feedback.