Rootless Buildah Fails in GitLab CI Due to seccomp unshare Restriction
Developers migrating from the deprecated Kaniko to Buildah for GitLab CI container builds hit a seccomp-related unshare(CLONE_NEWUSER) permission error that blocks rootless image builds. Reflects broader friction running rootless container build tools inside restrictive CI runner environments.
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Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.