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Fix Docker Compose Environment Variable Not Set on Build - Python Virtual Env Activate Command Missing-Fix DNS Probe Finished NXDOMAIN on Router: Step-by-Step

Updated 2026-07-29 04:15:43security-tools
Fix Docker Compose Environment Variable Not Set on Build - Python Virtual Env Activate Command Missing-Fix DNS Probe Finished NXDOMAIN on Router: Step-by-Step
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.