[Containerapp] updating min-replica check for az containerapp function keys commands and modifications to app-insights query for az containerapp function invocations

[khushishah513]

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[azure-client-tools-bot-prd]

Hi @khushishah513,
Please write the description of changes which can be perceived by customers into HISTORY.rst.
If you want to release a new extension version, please update the version in setup.py as well.

[yonzhan]

Thank you for your contribution! We will review the pull request and get back to you soon.

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[khushishah513]

The added check ensures that there will be an error if the min-replica is set to 0 and container has scaled down to 0 replicas. The error also provides with the command to update mi-replica to 1.

[github-actions]

Hi @khushishah513

Release Suggestions

Module: containerapp

• Please log updates into to src/containerapp/HISTORY.rst
• Update VERSION to 1.3.0b2 in src/containerapp/setup.py

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[Copilot]

Pull Request Overview

This PR updates the get_random_replica function in the containerapp extension to provide a more informative error message when no replicas are found for a revision that has minReplicas set to 0. This improves the user experience for function key management commands by guiding users to fix the underlying issue.

• Added logic to check if a revision has minReplicas set to 0 when no replicas are found
• Provides a specific error message with remediation steps when the issue is due to minReplicas being 0
• Falls back to the generic "No replicas found" error for other scenarios