Support specifying custom tenant ID/domain for authentication

[yeoyujie]

Yes. When using the VSCode AKS Tools extension, I’m always redirected to the default Azure login page for authentication. However, in my organization, we use a custom Azure Active Directory tenant/domain. Currently, there is no way to specify a custom tenant ID or domain.

Platform: vscode

Describe the solution you'd like
I'd like to have an option to configure a custom tenant ID or login domain before triggering the Azure authentication flow. This could be done via:

• VSCode settings (e.g., aks-tools.tenantId)
• Environment variable
• UI prompt when initiating login

[Tatsinnit]

Thank you so much @yeoyujie for raising this feature request 🙏.

At the moment, there is already a way to switch between tenants by using ctrl + shift + p (or cmd + shift + p on Mac) and then searching for AKS: Select Tenant, which allows you to navigate easily.

If I understood correctly, you’re suggesting an option to add this as a settings-level variable to better fit your scenario? I wanted to kindly highlight the existing tenant-switching functionality in case it helps in the meantime.

Thanks heaps again for the thoughtful suggestion 🙌.

cc: @tejhan