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Docker Compose Environment Variable Not Set in Container: Fixes - Fix macOS Keychain Git Credentials in Visual Studio Code-How to Fix Cloudflare Error 521: Origin Server Unreachable

2026-07-28 08:36:24
Docker Compose Environment Variable Not Set in Container: Fixes - Fix macOS Keychain Git Credentials in Visual Studio Code-How to Fix Cloudflare Error 521: Origin Server Unreachable

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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