DCV vs Shell experience differs for third party user

[stephenmsachs]

When a third party user gets invited via email-link they (provided the PCM user has sufficient privileges) will be able to access a running cluster via DCV. The "shell" link, however, will request the user to sign-up/sing-in with their AWS account.

For a seamless user experience, the "shell" button should also work without AWS credentials. The current state request the third party user to know about AWS users, IAM, etc. which is exactly what PCM successfully hides in other cases.

[mendaomn]

Thank you @stephenmsachs for the feedback!

We'll look into how to make the experience for users as smooth as possible, while respecting the security checks that are needed at each step