> For the complete documentation index, see [llms.txt](https://docs.ionos.com/cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ionos.com/cloud/containers/private-container-registry/overview/limitations.md).
# Limitations
There are the following few limitations when working with space.vars.ionos\_cloud Container Registry APIs:
* You cannot choose your encryption keys (Trust-No-One) when encrypting data at rest; the Container Registry platform manages the keys.
* It is not possible to grant repository access permissions to push, pull, or delete from a specific repository.
* Any unauthenticated user will not be able to access the registry contents.
---
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