Here is the documentation you will need to follow if you want to launch saltpad either for playing around with saltpad or using it on your production system.
Included with saltpad is a docker-compose environment that contains everything you need to play with saltpad.
Continue to saltpad with docker documentation.
If you want to use saltpad against your production salt-api, please check that your salt-master match all the requirements listed here.
If it does, continues to saltpad production installation.