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Fix Docker Compose Environment Variable Default Value Not Used - How to Resolve Windows Update Cleanup Error 0x800f081f-Docker Compose Secret vs Environment Variable: When to Use Each

Updated 2026-07-28 17:02:20cloud-software

Fix Docker Compose Environment Variable Default Value Not Used - How to Resolve Windows Update Cleanup Error 0x800f081f-Docker Compose Secret vs Environment Variable: When to Use Each

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.