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Structure the fuzz implementation to be closer to what go native will support. Add Makefile target to enable smoketesting fuzzers. Add github workflow to test and upload crash results. Signed-off-by: Paulo Gomes <paulo.gomes@weave.works>
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Paulo Gomes
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Jan 11, 2022
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| name: CIFuzz | ||
| on: | ||
| pull_request: | ||
| branches: | ||
| - main | ||
| jobs: | ||
| Fuzzing: | ||
| runs-on: ubuntu-latest | ||
| steps: | ||
| - name: Build Fuzzers | ||
| id: build | ||
| uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master | ||
| with: | ||
| oss-fuzz-project-name: 'fluxcd' | ||
| language: go | ||
| - name: Run Fuzzers | ||
| uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master | ||
| with: | ||
| oss-fuzz-project-name: 'fluxcd' | ||
| language: go | ||
| fuzz-seconds: 60 | ||
| - name: Upload Crash | ||
| uses: actions/upload-artifact@v1 | ||
| if: failure() && steps.build.outcome == 'success' | ||
| with: | ||
| name: artifacts | ||
| path: ./out/artifacts |
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| # Dependency directories (remove the comment below to include it) | ||
| # vendor/ | ||
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| build/ | ||
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| FROM gcr.io/oss-fuzz-base/base-builder-go | ||
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| COPY ./ $GOPATH/src/github.com/fluxcd/pkg/ | ||
| COPY ./tests/fuzz/oss_fuzz_build.sh $SRC/build.sh | ||
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| WORKDIR $SRC |
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| # fuzz testing | ||
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| Flux is part of Google's [oss fuzz] program which provides continuous fuzzing for | ||
| open source projects. | ||
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| The long running fuzzing execution is configured in the [oss-fuzz repository]. | ||
| Shorter executions are done on a per-PR basis, configured as a [github workflow]. | ||
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| For fuzzers to be called, they must be compiled within [oss_fuzz_build.sh](./oss_fuzz_build.sh). | ||
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| ### Testing locally | ||
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| Build fuzzers: | ||
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| ```bash | ||
| make fuzz-build | ||
| ``` | ||
| All fuzzers will be built into `./build/fuzz/out`. | ||
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| Smoke test fuzzers: | ||
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| ```bash | ||
| make fuzz-smoketest | ||
| ``` | ||
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| The smoke test runs each fuzzer once to ensure they are fully functional. | ||
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| Run fuzzer locally: | ||
| ```bash | ||
| ./build/fuzz/out/fuzz_conditions_match | ||
| ``` | ||
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| Run fuzzer inside a container: | ||
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| ```bash | ||
| docker run --rm -ti \ | ||
| -v "$(pwd)/build/fuzz/out":/out \ | ||
| gcr.io/oss-fuzz/fluxcd \ | ||
| /out/fuzz_conditions_match | ||
| ``` | ||
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| [oss fuzz]: https://github.com/google/oss-fuzz | ||
| [oss-fuzz repository]: https://github.com/google/oss-fuzz/tree/master/projects/fluxcd | ||
| [github workflow]: .github/workflows/cifuzz.yaml |
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