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Fix Nginx 502 Bad Gateway with Docker Environment Variables - Fix Docker Compose Environment Variables Not Reaching Entrypoint-How to Resolve Docker Build Context Canceled

2026-07-28 14:09:06developer-tools

Fix Nginx 502 Bad Gateway with Docker Environment Variables - Fix Docker Compose Environment Variables Not Reaching Entrypoint-How to Resolve Docker Build Context Canceled

Final checklist

Confirm that the same symptom is gone after a restart or refresh.
Keep the smallest working change and undo temporary diagnostic settings.