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Fix Docker Build 'exec format error' for ARM64 Images - Fix Kubernetes kubectl Connection Refused to Cluster-Fix Ubuntu apt update GPG error: repository not signed

Updated 2026-06-13 11:57:15browser-issues
Fix Docker Build 'exec format error' for ARM64 Images - Fix Kubernetes kubectl Connection Refused to Cluster-Fix Ubuntu apt update GPG error: repository not signed
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.