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Fix Docker Compose Environment Variable Missing Errors - How to Fix Nginx Upstream Connection Refused-Why Cloudflare DNS Changes Aren't Propagating

2026-07-28 21:52:36
Fix Docker Compose Environment Variable Missing Errors - How to Fix Nginx Upstream Connection Refused-Why Cloudflare DNS Changes Aren't Propagating

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

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