Salt

salt
systemctl enable salt-master; salt-master -d ; salt-master -l debug

salt client (minion)
searches salt then ssh handshake (/etc/salt/minion -> master:)
systemctl enable salt-minion

master: manage clients' keys
salt-key -L

recreate key
master:salt-key -d test2.example.com
minion: start salt
master: check salt-key L

salt '*' cmd.run

salt call - shows commands output on minion
grains - static data about minions
targetting - group minions by feature
states - - ex. /srv/salt/vim.sls:

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https://docs.saltstack.com/en/latest/topics/tutorials/walkthrough.html