Use Azure Managed Identities for authentication to other resources

[bramverdonck]

Is your feature request related to a problem? Please describe.
We're currently in the process of implementing an LDES architecture at a client in their Azure ecosystem.
For security reasons, we would need to use Managed Identities for secure authentication between the LDIO workbench and other resources (in our case Eventhubs). We would execute multiple API calls and want to avoid sending connection data directly in the requests.

Describe the solution you'd like
We can use Managed Identities / App registrations as a way of authentication instead of hardcoding values or sending plain text connection secrets.

Describe alternatives you've considered
/
Additional context
We would like to implement the complete LDES architecture before year's end (in production)

[sandervd]

Hi Bram,

Same comment as on the server issue: please make sure to discuss the changes (to config, functionality,...) you want to contribute before opening a PR, so we can assess the impact, and avoid having long open PRs.