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Harden Voting App Containers and Improve Worker Vote Handling - #535

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Damilare4123 wants to merge 2 commits into
dockersamples:mainfrom
Damilare4123:feature/container-security
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Harden Voting App Containers and Improve Worker Vote Handling#535
Damilare4123 wants to merge 2 commits into
dockersamples:mainfrom
Damilare4123:feature/container-security

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@Damilare4123

@Damilare4123 Damilare4123 commented Nov 2, 2026

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Summary

This pull request improves the security, reliability, and maintainability of the Voting App.

Changes made

  • Pinned Docker base images using SHA256 digests.
  • Configured application containers to run as non-root users.
  • Updated the result container to install production dependencies only.
  • Improved Docker build configurations.
  • Updated the worker to .NET 10 and modernized dependencies.
  • Improved PostgreSQL vote handling using ON CONFLICT.
  • Updated the result application test script.
  • Removed unnecessary development settings from Docker Compose.

Testing

  • Built the application Docker images.
  • Started the application services using Docker Compose.
  • Verified that votes could be submitted and processed.
  • Tested the result application and worker functionality.

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@Damilare4123