====== Salt Installation ======

===== Install Salt-Master =====

Salt packages are available from most repositories. Also, the last stable version can be installed from salt bootstrap this way:

<code bash>
# Download and install
curl -L https://bootstrap.saltstack.com -o install_salt.sh
sudo sh install_salt.sh -P -M

# Open firewall ports
firewall-cmd --permanent --zone=public --add-port=4505-4506/tcp
</code>

''-P'' installs 'pip' as dependency. Otherwhise install may fail.\\
''-M'' means that it will install the 'master' daemon aswell.

===== Install Salt-Minion =====

<code bash>
# Download and install
curl -L https://bootstrap.saltstack.com -o install_salt.sh
sudo sh install_salt.sh -P
</code>

Currently, there is a CNAME registry named 'salt' in ciberterminal.net zone, so further configuration shouldn't be needed.

In case that a server where not using ciberterminal.net DNS and search domain, the salt-master address can be specified in the configuration file ''/etc/salt/minion'':

<code>
master: salt.ciberterminal.net
</code>
===== Accept minion keys (from master) =====
To list all keys:
<code bash>
sudo salt-key --list all
</code>
To accept ''ALL'' keys:
<code bash>
sudo salt-key --accept-all
</code>

===== Testing (ping) minions and running commands =====
To test connectivity with minions you can ping them from the master:
<code bash>
sudo salt '*' test.ping
</code>

As minions are usually named by its DNS resolved name and are by default case sensitive, you can use regex to specify the minion id:
<code bash>
sudo salt -E '(?i)av*' grains.get hostname
</code>