This process generally involves updating the credentials (like secrets or certificates) used by applications to authenticate with Azure AD. Here's a guide on how to proceed and what to consider, especially given that you have a global Azure production environment running 24x7:
Procedure for Rotating KeyCredentials
1. Identify Affected Applications
- Determine which applications use the keyCredentials that need to be rotated. This could include applications that authenticate using Azure AD for various services.
2. Generate New Credentials
- Go to the Azure portal and navigate to the Azure Active Directory section.
- Find the application registration(s) affected.
- Under the "Certificates & secrets" tab, generate new client secrets or upload new certificates, as applicable.
- Note down the new credentials securely.
3. Update Applications with New Credentials
- Update the applications with the new credentials. This step will vary depending on how each application is configured.
- If possible, test the updated credentials in a staging or development environment before deploying them to production.
4. Monitor Applications Post-Update
- After updating the credentials in the applications, monitor them closely for any sign of issues or authentication failures.
Impact and Considerations
1. Minimizing Downtime
- Plan the update during a maintenance window or low-traffic period if possible, to minimize impact.
- Some modern applications can refresh their credentials without needing a restart, but this depends on how the application is designed.
2. Backup Old Credentials
- Keep the old credentials active while you make the transition to the new ones. This will allow for a fallback in case of any issues with the new credentials.
3. Communication
- Inform relevant stakeholders and teams about the planned changes and potential impacts.
4. Testing
- Ensure thorough testing in a non-production environment to validate that applications work correctly with the new credentials.
5. Rollback Plan
- Have a rollback plan in case you encounter unexpected issues during or after the update.
6. Documentation
- Update any documentation to reflect the changes made.
7. Compliance and Auditing
- Record the change for compliance and auditing purposes.
8. Removing Old Credentials
- Once you are confident that the new credentials are working as expected, remove the old credentials from Azure AD to maintain security.
References
- Manage certificates for federated single sign-on in Azure AD
- How to use client secrets and certificates in Azure AD apps
By carefully planning and executing this process, you can rotate the keyCredentials with minimal impact on your production environment.
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