Integrating your Azure AD identity provider

substrate setup will ask for several inputs, which this page will help you provide from your Azure AD identity provider.

These steps must be completed by an Azure administrator with the Application Administrator, Attribute Assignment Administrator, and Attribute Definition Administrator roles in an organization subscribed to Azure AD Premium 1 or Azure AD Premium 2.

Create a custom security attribute for assigning IAM roles to Azure AD users

  1. Visit https://portal.azure.com/#view/Microsoft_AAD_IAM/ActiveDirectoryMenuBlade/~/CustomAttributesCatalog in a browser (or visit the Azure portal, click Azure Active Directory, and click Custom security attributes (Preview))
  2. Click Add attribute set
  3. Enter “AWS” for Attribute set name
  4. Click Add
  5. Click AWS
  6. Click Add attribute
  7. Enter “RoleName” for Attribute name
  8. Click Save

Create and configure an OAuth OIDC client

  1. Visit https://portal.azure.com/#view/Microsoft_AAD_IAM/ActiveDirectoryMenuBlade/~/RegisteredApps in a browser (or visit the Azure portal, click Azure Active Directory, and click App registrations)
  2. Click New registration
  3. Enter a name for the application
  4. Select “Accounts in this organizational directory only (Default Directory only - Single tenant)”
  5. Select “Web” as the platform
  6. Enter “https://intranet-dns-domain-name/login” (substituting your just-purchased or just-transferred Intranet DNS domain name) next to the platform selector in the text input with e.g. https://example.com/auth as its placeholder
  7. Click Register
  8. Use the Application (client) ID to respond to substrate setup’s prompt
  9. Click Add a certificate or secret
  10. Click New client secret
  11. Enter a description
  12. Specify an expiration date however you see fit and set yourself a reminder to rotate the client secret before that date arrives
  13. Click Add
  14. Use the Value to respond to substrate setup’s prompt (being wary that this value will never be shown again; if you need to copy it again, you’ll need to create a new client secret)

Authorize users to use AWS

  1. Visit https://portal.azure.com/#view/Microsoft_AAD_UsersAndTenants/UserManagementMenuBlade/\~/AllUsers in a browser (or visit the Azure portal, click Azure Active Directory, and click Users)
  2. For every user authorized to use AWS:
    1. Click the user’s name
    2. Click Assigned roles in the left column
    3. Click Add assignments
    4. Select “Attribute Assignment Reader” and “Attribute Definition Reader”
    5. Click Add
    6. Click Custom security attributes (preview) in the left column
    7. Click Add assignment
    8. Select “AWS” in the Attribute set column
    9. Select “RoleName” in the Attribute name column
    10. Enter the name (not the ARN) of the IAM role they should assume in your Substrate account (“Administrator” for yourself as you’re getting started; if for others it’s not “Administrator” or “Auditor”, ensure you’ve followed adding non-Administrator roles for humans first)
    11. Click Save
  3. Visit https://portal.azure.com/#view/Microsoft_AAD_IAM/StartboardApplicationsMenuBlade/~/AppAppsPreview/menuId~/null in that same browser (or visit the Azure portal, click Azure Active Directory, and click Enterprise applications)
  4. Click the name of the application you created above
  5. Click Users and groups in the left column
  6. Click Add user/group
  7. Click Users
  8. Select every user authorized to use AWS
  9. Click Select
  10. Click Assign

With your identity provider integrated, jump to finishing up in your management account.