fix: resolve Docker glibc version mismatch (issue #5) - #6
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Pin builder image to rust:bookworm to match runtime's Debian version. The rust:latest image uses Debian 13 (Trixie) with glibc 2.41, while debian:bookworm-slim uses glibc 2.36. Binaries compiled against newer glibc cannot run on older versions. Also adds CI safeguards to prevent regression: - Smoke test in docker-publish.yml before pushing images - New docker-build job in test.yml for PR validation - Dockerfile changes now trigger the test workflow Closes #5 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
rust:latesttorust:bookwormto match runtime's Debian versionRoot Cause
The
rust:latestimage recently upgraded from Debian 12 (Bookworm) to Debian 13 (Trixie), which ships with glibc 2.41. The runtime imagedebian:bookworm-slimonly has glibc 2.36. Since glibc is only forward-compatible (not backward), binaries compiled against 2.41 fail with:Changes
Dockerfilerust:bookworm, add explanatory commentsdocker-publish.ymltest.ymlDockerfileto trigger paths, newdocker-buildjobTesting
docker build -t kafka-backup:test .docker run --rm kafka-backup:test --version→kafka-backup 0.4.0docker run --rm --entrypoint ldd kafka-backup:test --version→glibc 2.36After Merge
A new release tag will be needed to publish the fixed Docker image to Docker Hub.
Closes #5
🤖 Generated with Claude Code