Configuring SSO for enterprise applications with Auth0 Organization Connections

Question

Pulumi · Accepted Answer

Single Sign-On (SSO) is an authentication scheme that allows a user to log in with a single ID and password to any of several related, yet independent, software systems. When configuring SSO for enterprise applications with Auth0, you typically use "Organization Connections" which allow users from one or more connections (like social, enterprise, or username-password databases) to access an organization's applications.

Let's construct a Pulumi program that creates an organization within Auth0 and then sets up a connection for this organization. This will enable users who authenticate through the specified connection to access the organization's applications.

In this example, I'll guide you through the code for configuring SSO using Auth0 by setting up an organization and an organization connection using the Pulumi Auth0 provider.

Let's begin by creating an organization:

1. **Create an organization**: This organizes users, manages their roles, and handles various aspects like SSO, multi-factor authentication policies, and more.

2. **Set up an organization connection**: This links a connection (such as Google, GitHub, or an enterprise connection like SAML, LDAP, etc.) to the organization, allowing users logging in through that connection to access the organization.

3. **Configure other settings**: Depending on your organization's requirements, you may configure membership settings, metadata for the organization, or additional branding options.

Here's the TypeScript code that represents these steps:

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as auth0 from "@pulumi/auth0";

// Create a new Auth0 organization.
const myOrganization = new auth0.Organization("my-organization", {
    name: "my-organization-name",
    displayName: "My Organization",
    branding: {
        // You can specify your branding colors, logo URL, etc.
    },
    // Organization metadata can be used to store custom properties available in rules.
});

// Create a new Auth0 Organization Connection to allow users from the specified connection
// to access the organization's applications. Make sure you have a connection ID ready
// which can be found in your Auth0 Dashboard.
const myOrganizationConnection = new auth0.OrganizationConnection("my-organization-connection", {
    organizationId: myOrganization.id,
    connectionId: "your-connection-id", // Replace with your actual connection ID
    // The following property determines whether to assign membership to users on their first login
    assignMembershipOnLogin: false,
});

// Export the ID of the organization
export const organizationId = myOrganization.id;
```

In this program:

- We first import the necessary packages from Pulumi and the Auth0 provider.
- Then, we create an `Organization` with a specified name and display name to organize users and manage configurations.
- Following that, we create an `OrganizationConnection`, specifying the IDs of the organization and the connection. The `connectionId` needs to be obtained from the Auth0 Dashboard and represents a specific method for user authentication (like a Username-Password-Authentication, a social login like Google, or enterprise connections like SAML).
- The `assignMembershipOnLogin` field is set to `false` to demonstrate the initial configuration, but you might want to auto-enroll users to the organization on their first login by setting this to `true`.
- Finally, the ID of the organization is exported. This can be used to integrate with other systems if needed, or for reference in the Auth0 dashboard.

Make sure you replace `"your-connection-id"` with the actual connection ID from your Auth0 setup. You can find this ID in your Auth0 dashboard under the connections section.

To deploy this infrastructure, save the above code in a file `index.ts` and run the following Pulumi CLI commands:

```bash
pulumi up
```

This command starts the deployment process. It will show you a preview of the resources to be created. Confirm the operation, and Pulumi will provision the resources for you, displaying the updates in real-time.

Remember, before running this Pulumi program, ensure that you have the correct Auth0 provider configuration set up, including the domain and tokens necessary for Pulumi to authenticate with your Auth0 account. You'll typically handle this outside of the Pulumi program with environment variables or other configuration mechanisms.

For more detailed documentation about the Auth0 resources, refer to the [Pulumi Registry Auth0 provider](https://www.pulumi.com/registry/packages/auth0/).