Container secret mounts » History » Version 2

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Tom Clegg, 03/01/2018 02:41 PM

Container secret mounts

This is a proposed modification to Containers API.

Add a "secret_mounts" serialized field to containers and container requests.

"secret_mounts" has the same form and behavior as "mounts", except:
  • Only literal content is allowed (kind=text or kind=json)
  • Current value is never returned in a container request or container API response
  • Current value can be retrieved from a new API (/arvados/v1/containers/$uuid/secret_mounts) which must be authenticated by the container's own runtime token
  • Never appears in container logs
  • Never appears in the Arvados logs table
  • Never appears in websocket updates
  • Never appears in API server request logs

It is an error for the same key (mount path) to appear in both mounts and secret_mounts. It should not be possible to commit a container request with this error condition, although it might be possible to save.

A secret_mounts key (path) cannot be
  • equal to the container's output path,
  • a descendant of the container's output path, or
  • an ancestor of the container's output path (currently, this is a moot point because secret mounts are not directories)
For clarity, some ways in which secret_mounts behaves like mounts are:
  • Non-identical secret_mounts disqualifies a container for reuse. The mere existence of secret_mounts does not disqualify.
  • secret_mounts can be set via container_requests#create and container_requests#update APIs
  • secret_mounts cannot be null, but can be an empty hash
  • keys of secret_mounts are paths in the container's filesystem, and always begin with "/"