SEP-1014 Use Debian Python image instead of Alpine for SEP app/frontend - #701
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Pull request overview
Switches SEP’s container images from Alpine-based Python to Debian slim, updating package installation and user creation accordingly. This aligns better with Python ecosystem wheel availability and glibc-based runtime dependencies (notably for PDF generation tooling).
Changes:
- Replaced
python:3.11.14-alpinewithpython:3.11.14-slimin both the final app image and the builder base. - Converted
apk addusage toapt-get installwith cleanup of apt lists. - Updated user/group creation commands from BusyBox
adduser/addgroupto Debianuseradd/groupadd.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| Dockerfile | Switch final runtime stage to Debian slim and replace Alpine package/user setup with Debian equivalents. |
| Containerfile.base | Switch builder base image to Debian slim and replace Alpine package install with Debian apt. |
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Python CI job manually triggered, passed: https://github.com/percona/SEP/actions/runs/25650082271 |
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May 11, 2026 04:32
peter-o-addo
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May 11, 2026
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May 11, 2026
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May 11, 2026
…nd (#701) Currently, SEP app/frontend run on official Python Docker image based on Alpine Linux. Alpine image is very small, which is good, but `musl` C library forces Python library recompilation + potential runtime bugs. Official Python/Node images also publish a Debian-based `-slim` version, which is proven and mostly secure given how popular Debian is
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Summary
Currently, SEP app/frontend run on official Python Docker image based on Alpine Linux. Alpine image is very small, which is good, but
muslC library forces Python library recompilation + potential runtime bugs. Official Python/Node images also publish a Debian-based-slimversion, which is proven and mostly secure given how popular Debian is.Tested
CI passed, image building passed, smoke test passed, container ran on new image base
Checklist
make test)make run-pre-commit)make makemigrations)changelog.d/if the change is user-facing (make changelog-add), or confirmed N/A (internal-only change, or a same-release-cycle fix for an unreleased sibling ticket)