> For the complete documentation index, see [llms.txt](https://docs.rhinofcp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rhinofcp.com/security-and-data-protections/how-to-use-the-secrets-manager-with-rhino-fcp.md).

# How To Use the Secrets Manager with Rhino FCP

To ensure the Rhino FCP can retrieve the correct secret for a Code Run, the secret's key ID in the Secrets Manager **must exactly match the tag of the container image** being executed. *Example:* If your container image is tagged `v1`, the corresponding secret in the Secrets Manager must also have the tag `v1`.

During a Code Run execution, the Rhino FCP dynamically injects the retrieved secret into the running container at a specific, standardized location:

* **Injection Path:** The secret is provided as a JSON file named `secret_run_params.json` at the absolute path: `/input/secret_run_params.json`.
* **Runtime Access:** The container's code, e.g. `decrypt_weights` function, accesses this file at runtime to securely retrieve the necessary keys (e.g., `decrypt_key` or `encrypt_key`). Note that the function used here (`decrypt_weights`) is just an example. But, there should be a file inside the container should be used for decrypting.


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