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Add a weekly image scan and apply Alpine security updates - #41
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Alpine package fixes only reach users with a new release, and nothing flags when one is waiting. Build the image fresh every Monday and fail on any fixable High or Critical vulnerability, the same way Flow does. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The base image only carries the Alpine packages from the day it was built, and Dependabot can't see them. Run apk upgrade so security fixes land without waiting for an upstream rebuild. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Why
Alpine package fixes only reach users with a new release, and a vulnerability can appear without any commit to this repo. Dependabot only tracks the base image, not the packages inside it, so nothing flags when a fix is waiting.
What
.github/workflows/scan.yml, the same workflow Flow uses. Every Monday at 06:17 UTC, and on demand, it builds the image with a fresh base and fails on any fixable High or Critical vulnerability found by grype.apk upgrade --no-cachein the final image, so security fixes land without waiting for an upstream rebuild. The trade-off is that the same commit can produce slightly different images over time.Scan results
Local arm64 builds of this branch, scanned with grype v0.118.0 and the workflow's flags.
Before:
zlibAfter: No High or Critical findings remain. 3 Medium or Low
pythonfindings are below the cutoff and need a newer Python.Users get these fixes with the next release.
🤖 Generated with Claude Code