Scenario: Managed GCP Applications hosted on GCP with a Google cloud identity setup for customers
Want customers to access GCP managed service using their own IDP
Question: Can I use Azure AD b2c as an IDP for Google cloud identity ?
Looking for a solution or alternate solutions which may not be that expensive
Azure AD B2C is an OIDC IdP so yes, it can be used as a federated IdP in Google Cloud Identity. Due to the similarities between Azure AD B2C and Azure AD you can follow most of the steps detailed in Configure workforce identity federation with Azure AD and sign in users with the following Azure AD B2C specific replacements:
Create a new app. As a best practice, we recommend that you create a new application in Azure AD B2C and use only the application to obtain Google Cloud credentials. To create a web app for user sign-in with Azure AD B2C and enable your app to receive tokens from Azure AD B2C, see Register a web application in Azure Active Directory B2C. Do not forget to follow the Next steps.
Skip this one.