Added fixed SOURCE_DATE_EPOCH flag for reproducible ubuntu builds #8547
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…uilds clnrest's `utoipa-swagger-ui` library has an indirect `rust-embed` dependency which by default includes timestamps in build. It results in non-deterministic build for clnrest. Using environment variable `SOURCE_DATE_EPOCH` with fixed value will enforce a consistent timestamp for builds. Also adding the `--locked` flag to ensure the release build uses exact dependencies from Cargo.lock. The `--locked` flag is particularly important for deterministic builds as it prevents Cargo from updating the lockfile. Fixes ElementsProject#8288. Changelog-Fixed: Core lightning builds for Ubuntu Focal, Jammy and Noble are deterministic again.
Closed
ShahanaFarooqui
requested review from
rustyrussell and
daywalker90
and removed request for
cdecker
|
Wow great find, back when i tried to fix it my LLM didn't point me to this and now it does... Also the maintainer didn't point me to this either when i implemented my fix with the feature flag. I've built clnrest 3 times in release mode with that ENV set and i got the same hash every time so i'm pretty sure it works! |
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clnrest's
utoipa-swagger-uilibrary has an indirectrust-embeddependency which by default includes timestamps in build. It results in non-deterministic build for clnrest. Using environment variableSOURCE_DATE_EPOCHwith fixed value will enforce a consistent timestamp for builds.Also adding the
--lockedflag to ensure the release build uses exact dependencies from Cargo.lock. The--lockedflag is particularly important for deterministic builds as it prevents Cargo from updating the lockfile.Fixes #8288.
Changelog-Fixed: Core lightning builds for Ubuntu Focal, Jammy and Noble are deterministic again.