Saltstack Installation Chapter

First, the basic introduction
1. Introduction
Salt is a basic platform management tool
Salt is a configuration management system that maintains remote nodes that are scheduled to be in a state
Salt is a distributed remote execution system used to execute commands and query data on remote nodes

Core features of 2.salt:
Sending a command to a remote system is parallel rather than serial
Protocols that use secure encryption
Use the smallest and fastest network load
Improve the simple programming interface

3.salt Advantages:
Saltstack is written in Python, which is the equivalent of a lightweight device.
The Saltstack communication layer is implemented using ZEROMQ, making it fast
Saltstack is open source, you can write your own module via Python.

4.salt Port Description:
Salt-master starts two ports when booting
4505: Publish a private port for a salt message
4506: Port for client-to-server communication

Second, install Saltstack under CentOS:

1. Installation Environment:

System: CentOS6.5:

Server side: 10.10.100.60      masterclient1 end: 10.10.100.61     Client1client2 end: 10.10.100.62     Client2

2. Install Saltstack (hereinafter referred to as salt)

1.> Installing the Epel Source:

CentOS6 download Rpmwget-o epel.rpm http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm  ( Installation of both server and client) RPM-UVH epel.rpm

2.> Install Master (server side)

Yum-y Install salt-master# When the installation is complete, the configuration file is/etc/salt/master

3.> Installing minion (client)

Yum-y Install salt-minion# When the installation is complete, the configuration file is/etc/salt/minion

3. Configure Saltstack:

Master configuration

#cat/etc/salt/master | grep ' ^ #interface ' interface:  

Minion Configuration

#cat/etc/salt/minion | grep "^# Master" master:10.10.100.60# see that there are two spaces in front of master, this line of code indicates that the master of the Saltstack I want to connect to is 10.10.100.60

Start Saltstack

Start the master side:

#/etc/init.d/salt-master startstarting salt-master daemon: [OK]

To start the Minion side:

#/etc/init.d/salt-minion startstarting salt-minion daemon:                               [  OK  ]

Test Saltstack

Execute the following command on master:

1. View Minion List

# salt-key-laccepted keys:denied keys:unaccepted keys:client1client2rejected Keys:

2. Accept All Keys

# salt-key-a-y

3. Simple test

#salt ' * ' Test.pingclient1:    Trueclient2:    True

This saltstack installation is basically done!

Knowledge points to be aware of:

The 1.saltstack Master side does not need to restart the service after modifying the configuration.

Operation after changing hostname:

1.minion End:/etc/salt/minion_id     //Empty/etc/salt/pki     //delete 2.master end: salt-key-d salt_client-y//Reject Minion End Key3. Then restart the Minion-side service

Reference Document: https://www.ttlsa.com/saltstack/install-saltstack-on-linux/

Saltstack Installation Chapter