To set up an Okta user, perform the following steps:

Go to https://developer.okta.com and click on SIGN UP.

Enter the relevant details and click on GET STARTED.

Okta will send you an email with your Org Subdomain and Temporary Password.

Click on the Sign In button in the email, enter your Username (email) and Temporary Password, and log in.

You will be presented with some more account-related information. Fill in the details and complete your account setup.

You now have an Okta account set up with one user (you) and no applications configured to do SSO.

To set up the Okta application, perform the following steps:

Log in to your account and click on the Admin button.

On the screen, click on the Add Applications shortcut link.

Click on the Create New App button. Select Web as the platform, select the SAML 2.0 radio button, and click on the Create button.

In the App name field, enter your app name, keep the rest of the fields as they are, and click on the Next button.

In the Single sign on URL field, enter the URL as https://localhost:8443/saml/SSO. In the Audience URI field, enter the URI as https://localhost:8443/saml/metadata. Keep the rest of the fields as they are, and click on the Next button.

Click on the radio button that says I'm an Okta customer adding an internal app.

Select the checkbox that says, This is an internal app that we have created, and click on the Finish button.

To assign an Okta application to a user, you need to follow the following steps:

Navigate to the dashboard and click on the Assign Applications shortcut link.

Click on the created application (in the Applications section) on the left, click on your username (on the People section) on the right, and click on the Next button.

On the next page, click on the Confirm Assignments button, and you will be done assigning the application to a user.