Users can create Application Credentials to allow their applications to authenticate to the OpenStack Identity service. 

Users can delegate a subset of their role assignments on a project to an Application Credential, granting the application the same or restricted authorisation to a project. 

With application credentials, applications authenticate with the application credential ID and a secret string, which is different from the user’s password. This way, the user’s password is not embedded in the application’s configuration.

Create a new Application Credentials

The application credentials can be created from the Openstack Horizon dashboard by going to the left panel Identity → Application Credentials and selecting "Create Application Credentials"

A dialog panel appears, showing the relevant options and related description. Credentials "Name" is the only mandatory field.

Once created the Secret will be shown just once. It should be copied and saved in a safe place.