How to do Hashicorp Opensource Vault in Docker Container

I have one problem i have given one task but i’m not understand how can i do it…if anyone knows please help with clear steps so that i can easily do it

  1. Deploy a Hashicorp Opensource Vault container
  2. Using CLI or UI add username/password of NetBanking App
  3. Using Vault API with Token retrieve NetBanking app’s username/password using @Cmd
  4. Next call another NetBanking App’s token generation apis with the credentials

I have search in google but is different to my task

Source: Docker Questions