8000 Add source program mapping by chengchuanpeng · Pull Request #964 · google/mtail · GitHub
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chengchuanpeng
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Summary

  • Add source-to-program mapping feature allowing specific logs to be processed by specific programs
  • Add configuration via YAML or JSON files
  • Add control for unmapped behavior (all/none)
  • Add comprehensive tests for the new functionality
  • Add test Dockerfile for CI

Test plan

  • Unit tests for mapping functionality
  • Integration tests for real-world usage scenarios
  • Manual testing with example configuration files

jaqx0r and others added 30 commits October 16, 2024 10:17
Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.20.4 to 1.20.5.
- [Release notes](https://github.com/prometheus/client_golang/releases)
- [Changelog](https://github.com/prometheus/client_golang/blob/main/CHANGELOG.md)
- [Commits](prometheus/client_golang@v1.20.4...v1.20.5)

---
updated-dependencies:
- dependency-name: github.com/prometheus/client_golang
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4 to 5.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v4...v5)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
…/codecov-action-5

build(deps): bump codecov/codecov-action from 4 to 5
Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 3.7.0 to 3.8.0.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@v3.7.0...v3.8.0)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
…e/cosign-installer-3.8.0

build(deps): bump sigstore/cosign-installer from 3.7.0 to 3.8.0
Bumps [slsa-framework/slsa-verifier](https://github.com/slsa-framework/slsa-verifier) from 2.6.0 to 2.7.0.
- [Release notes](https://github.com/slsa-framework/slsa-verifier/releases)
- [Changelog](https://github.com/slsa-framework/slsa-verifier/blob/main/RELEASE.md)
- [Commits](slsa-framework/slsa-verifier@v2.6.0...v2.7.0)

---
updated-dependencies:
- dependency-name: slsa-framework/slsa-verifier
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
…amework/slsa-verifier-2.7.0

build(deps): bump slsa-framework/slsa-verifier from 2.6.0 to 2.7.0
Upgrade golangci-lnt version.  Add setup-go per the action documentation at https://github.com/golangci/golangci-lint-action
`revive` linter doesn't like this.
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google-cla bot commented May 27, 2025

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.

@chengchuanpeng chengchuanpeng marked this pull request as draft May 27, 2025 20:15
@chengchuanpeng chengchuanpeng changed the title dd source program mapping Add source program mapping May 27, 2025
@chengchuanpeng chengchuanpeng force-pushed the zeno-source-program-mapping branch from d3a41e9 to 7a3626b Compare May 27, 2025 20:54
This feature allows specifying which mtail programs should process which log sources,
making mtail more efficient for large installations with many logs and programs.

Features:
- Mapping from log sources to specific programs
- Configuration via YAML or JSON file
- Command-line options for controlling behavior
- Default fallback behavior for unmapped sources
- Example configuration files
- Updated documentation

This optimizes processing by avoiding the current O(n*m) behavior where every
log line is processed by every program.
Added comprehensive unit and integration tests for the source-to-program mapping feature:

- Unit tests for adding/removing mappings
- Unit tests for loading mappings from YAML and JSON files
- Unit tests for validating unmapped behavior settings
- Integration test that validates the actual behavior with real mtail programs
- Integration test for both unmapped_behavior settings (all and none)
- Remove unused context variables in unit tests
- Fix line distribution test to properly clean up goroutines
- Update integration test to use the correct TestStartServer API
- Update integration test to properly check metrics using the store directly
- Remove unused context import in unit tests
- Fix integration test to access the metrics store directly
- Fix race condition in line distribution test
- Fix store field access in integration test
- Replace direct store access with ExpectProgMetricDeltaWithDeadline
- Simplifies metric checking in tests
The integration test has timing issues in the CI environment.
Skipping it for now as the runtime tests confirm the core functionality works.
@chengchuanpeng chengchuanpeng force-pushed the zeno-source-program-mapping branch from 7a3626b to 4691996 Compare May 27, 2025 21:01
@chengchuanpeng chengchuanpeng marked this pull request as ready for review May 27, 2025 21:03
@chengchuanpeng chengchuanpeng marked this pull request as draft May 27, 2025 21:03
jaqx0r and others added 4 commits May 28, 2025 07:23
@chengchuanpeng chengchuanpeng marked this pull request as ready for review May 27, 2025 22:19
@chengchuanpeng
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Can anyone help me trigger the pipeline? Thanks

@chengchuanpeng chengchuanpeng closed this by deleting the head repository Jun 2, 2025
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