Home / developer-tools / Docker Compose Environment Variable Not Set in Dockerfile - Resolve npm Build Failure with Exit Code 1-How to Fix 522 Connection Timeout in Nginx

Docker Compose Environment Variable Not Set in Dockerfile - Resolve npm Build Failure with Exit Code 1-How to Fix 522 Connection Timeout in Nginx

Updated 2026-07-28 11:58:20developer-tools

Docker Compose Environment Variable Not Set in Dockerfile - Resolve npm Build Failure with Exit Code 1-How to Fix 522 Connection Timeout in Nginx

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.