Pain point · Self-hosting & upgrades · Blocks work
Multi-stage Docker builds fail --optimized validation after upgrade
1 source thread · first seen 2025-04
Summary
A Dockerfile using --optimized that worked in earlier versions fails on 26.2 with a provider JAR updated since the last build error.
- Affects
- Teams building custom Keycloak images with themes
Evidence
Excerpts are copied word for word from the source; follow the link to read it in full.
“Running a dockerfile with `--optimized` that works with earlier versions fails on newer ones”