gistfile1.txt

1> Install salt on your system (including salt-cloud)

https://repo.saltstack.com/#ubuntu

2> make file /etc/salt/cloud.providers.d/surfsara.conf with content

surfsara:
  xml_rpc: https://api.hpccloud.surfsara.nl/RPC2
  user: YOUR_USERNAME
  password: YOUR_PASSWORD
  private_key: /home/YOUR_LOCAL_USER/.ssh/id_rsa
  driver: opennebula
  image: Ubuntu-18.04-Server (2020-04-01)                                                                             
  template: Ubuntu-18.04-Server (2020-04-01)                                                                          
  ssh_username: ubuntu                            

3> make file /etc/salt/cloud.profiles.d/basic.conf with content

basic:
    provider: surfsara
    
4> make a mapfile (anywhere) with content:

basic:
  - gijs_master:
      make_master: True
  - gijs_minion1
  - gijs_minion3

5> run salt-cloud:

 $ sudo salt-cloud -p basic -m mapfile -P