[FEATURE] Authentication for CI/CD

[lechnerc77]

The currently supported authentication mechanisms are username/password and with release 0.4.0-beta1 a token based authentication that can only be used SAP-internally.

The provider and the underlying BTP CLI Server still lack the support of an authentication flow that enables CI/CD scenarios.

This ticket s a follow-up to #8, to keep this necessary enhancement of the provider authentications flow in the backlog

[lechnerc77]

Update:

• The proposal based on the blog post https://blogs.sap.com/2022/12/09/automation-with-the-btp-command-line-interface-logging-in-with-passcodes/ does offer an option but has no advantages with respect to username/password flow.
• Preferred option would be to support the pkce flow as state-of-the-art authentication flow
• Internal clarification started

[lechnerc77]

Status Quo: SAP IdP has functional limitations/gaps when it comes to the default setup on SAP BTP. This blocks the comprehensive enablement of Authentication flows.

The topic is in process by the corresponding team, but no ETA is available

[lechnerc77]

Re-Check after Q2/2024