CentOS 7
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Salt : Install
2016/10/08
 
Install Salt which is the Configuration Management System.
It's possible to use Salt on a server with standalone though, but this example shows to configure Server and Client environment.
Administration Server is called Salt Master, Client Server is called Salt Minion.
[1] Install salt-master on Salt Master Host.
# install from EPEL

[root@dlp ~]#
yum --enablerepo=epel -y install salt-master
[root@dlp ~]#
systemctl start salt-master

[root@dlp ~]#
systemctl enable salt-master
[2] On Salt Master Server, If Firewalld is running, allow related ports.
[root@dlp ~]#
firewall-cmd --add-port={4505/tcp,4506/tcp} --permanent

success
[root@dlp ~]#
firewall-cmd --reload

success
[3] Install salt-minion on Salt Minion Host.
# install from EPEL

[root@node01 ~]#
yum --enablerepo=epel -y install salt-minion
[root@node01 ~]#
vi /etc/salt/minion
# line 16: uncomment and specify Salt Master Server

master:
dlp.srv.world
[root@node01 ~]#
systemctl start salt-minion

[root@node01 ~]#
systemctl enable salt-minion
[4] When Salt Minion initially starts, he sends public-key for authentication to Salt Master. If Salt Master accepts the key, Salt Master and Salt Minion can connects each other.
# show the list of keys

[root@dlp ~]#
salt-key -L

Accepted Keys:
Denied Keys:
Unaccepted Keys:
node01.srv.world
Rejected Keys:
# permit all keys with "A" option

[root@dlp ~]#
salt-key -A

The following keys are going to be accepted:
Unaccepted Keys:
node01.srv.world
Proceed? [n/Y]
y
Key for minion node01.srv.world accepted.
[root@dlp ~]#
salt-key -L

Accepted Keys:
node01.srv.world
Denied Keys:
Unaccepted Keys:
Rejected Keys:
# verify working

[root@dlp ~]#
salt "*" test.ping

node01.srv.world:
    True
 
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