Cross-Platform Efficiency: Mastering Federation of Azure AD with OCI Identity Domains for SSO Solution

 By federating Azure AD with OCI Identity domains(more on OCI Identity Domains), businesses can centralize user authentication, simplifying access management and reducing administrative overhead. This robust integration enables a single sign-on (SSO) experience, allowing users to securely access resources across both platforms with a single set of credentials. With enhanced security measures and simplified user provisioning, organizations can ensure compliance with regulatory standards while fostering a seamless user experience. Now, with all new tenancies, Oracle has introduced identity domains as a single domain for storing all the users, groups credentials and so the navigations have also changed a bit. Also, the point to be noted that in the background, it is the same IDCS solution running.

Here, OCI act as a service provider (SP) and Microsoft Azure act as an Identity Provider (IdP). The Service Provider (OCI) creates a SAML request and forwards the user and the SAML request to the Identity Provider (Azure AD). Once the user is authenticated, the IdP sends back a SAML response with an assertion to the Service Provider's Assertion Consumer Service endpoint. 

Note: Azure AD  is now Microsoft Entra ID.

Go to the OCI Hamburger menu > Identity and Security

Click on Domains and change the below settings first

get the IDCS url

Copy the IDCS url and add /fed/v1/metadata. Open a browser and save the file as XML.

On the Azure Portal now:-

Create an Enterprise Application. Choose the option as Oracle

Choose the option Oracle Cloud Infrastructure Console

Give it a name and Click on Create

Click on Single Sign on and choose the option for SAML

Upload the OCI downloaded metadata xml file

Download the Federation Metadata XML which has to be uploaded to OCI side.

OCI Side:-

Click on Add SAML IdP

Choose the option Upload metadata xml file

Upload the xml file downloaded from Azure Portal

Review and Create

Test the login

Activate the IdP

Edit the IdP policies and add Azure AD

Test the setup.

Note: User has to be present on both OCI IAM and Azure AD

Login to the OCI console and we will get the IdP icon

Click on Azure AD

Here we are. We have successfully landed to the OCI home page.

This post explains about the integration of Oracle cloud Infrastructure Identity domains with Microsoft Azure AD for a seamless Single Sign on Solution.

I hope, this post will help someone. Till then, enjoy learning cloud.

References:-https://docs.oracle.com/en-us/iaas/Content/Identity/Concepts/federation.htm#top

https://docs.oracle.com/en-us/iaas/Content/Identity/tutorials/azure_ad/lifecycle_azure/02-config-azure-iam-template.htm#config-azure-iam-template