Go to okta developer and create an developer account.
Fill, if you want, about yourself
Verify your email address and activate your okta developer account.
Create new java application
Change login redirect uri http://localhost:8080/authorization-code/callback to http://localhost:8080/login/oauth2/code/okta
Copy the cliend id and client secret to use on helm or the microservice.
Create new angular application and change base, login redirect and logout redirect uris.
Now copy the client to use on helm or frontend application.