از قبل در لینوکس وجود داشت در ورژن 17.06 برای ویندوز نیز موجود می‌شود.

Secrets are a first-class citizen in Docker. They're for storing sensitive application data, like API keys and connection strings. Secrets have been in Docker on Linux for a while, and with Docker version 17.06 they're coming to Windows.