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Fixing Cloudflare 522 Errors with Load Balancer Setup - Troubleshooting Nginx Upstream Connection Refused in Docker-Resolving index.lock Exists Error in VS Code

2026-07-28 14:28:42
Fixing Cloudflare 522 Errors with Load Balancer Setup - Troubleshooting Nginx Upstream Connection Refused in Docker-Resolving index.lock Exists Error in VS Code

Result check

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

Next references

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