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Docker Container Exits Immediately: 'Command Not Found' Fix - Fix Cloudflare 522: Steps for Origin Server Timeout-Cloudflare 521 Error: Troubleshooting and Fixes

2026-07-28 18:30:59
Docker Container Exits Immediately: 'Command Not Found' Fix - Fix Cloudflare 522: Steps for Origin Server Timeout-Cloudflare 521 Error: Troubleshooting and Fixes

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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