install saltstack agentless

nickollas SaltStack

1 – install salt-ssh*

wget -O - https://repo.saltstack.com/py3/debian/10/amd64/latest/SALTSTACK-GPG-KEY.pub | apt-key add -

echo 'deb http://repo.saltstack.com/py3/debian/10/amd64/latest buster main' > /etc/apt/sources.list.d/saltstack.list

apt update && apt install -y salt-ssh && mkdir -p /srv/salt

2 – append host configuration in roster config file

cat >> /etc/salt/roster <<EOF
srv07:
  host: 192.168.0.7
  user: root
  passwd: 123456
EOF
common roster file options**:
port: 22
set_path: /bin:/sbin:/usr/bin:/usr/sbin
user: root
passwd: 123456
priv: /path/to/id_rsa

3 – try to execute a command on remote host. -i “ignore-host-keys”

salt-ssh -i '*' test.ping

4 – install python3 on remote host if the command above fails. -r “execute raw command”

salt-ssh -i -r srv07 'yum -y install python3'

5 – try to execute other command on remote host

salt-ssh 'srv07' network.ip_addrs

*official installation list to all linux distros: https://repo.saltstack.com

**more roster file options: https://docs.saltstack.com/en/latest/topics/ssh/roster.html

to improve speed of ssh connections

keep all ssh connections active for 5 minutes

cat >> ~/.ssh/config <<EOF
ControlMaster auto
ControlPath ~/.ssh/control:%h:%p:%r
ControlPersist 300s
EOF

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