Introduction To SaltStack

About Me

- Linux/Web engineer- Evolved as a DevOps- Author of SaltStack For

DevOps- Founder of DevOpsLinks- My blog : eon01.com/blog- Follow me : @eon01

Configuration Management & Data Center Automation

Mechanisms to manage the technical description of a system Source code deployments on multiple environments requires a configuration management and

provisioning tool.

With the adoption of agile development methods, the process of development, test and deployment of a software component has accelerated and therefore the methods of management have become faster, more automated and more adapted to changes

Automation is important to the success of critical IT processes that are part of the life cycle of a product, including provision, change management, release management, patch management, compliance and security.

DevOps

SaltStack SaltStack fundamentally improves the way system administrators, integrators and DevOps use

to configure and manage all aspects of a modern data center infrastructure.

It is built on a platform running relatively fast while allowing remote control of distributed infrastructures, code and data.

The infrastructure to manage can be virtual machines, cloud (Amazon EC2 instances, Rackspace ..etc) or physical machines as well hosted applications and platforms that rely on configuration files.

You can use Salt installed on an operating system to manage other systems (A Linux to manage a Solaris or a BSD to manage a Windows ... etc.).

A Brief Summary One or more salt-master, salt-minion and salt-syndic A key management system salt-key that allows the authentication of a salt-minion on asalt-master A system of states to describe the configurations A top.sls that calls the states A system of grain on the minion to manage the configurations data A system of pillars to store other data on the master (such as confidential data) A transport and data management system called ZeroMQ An event management system called reactors returners, outputters ..etc

Installation If your server has Internet access, this shell script will be convenient to automate the installation

of the stable version: wget -O - http://bootstrap.saltstack.org | sudo sh

You can also install the latest version on git (development version):curl -L https://bootstrap.saltstack.com -o install_salt.shsudo sh install_salt.sh git develop

Salt is made of master and slave typically masters and minions.

In the jargon used by the editor, a master is salt-master and a minion is a salt-minion. A syndic called salt-syndic is part of the package and its role consists of connecting masters.

TroubleshootingBefore launching the master and the minion(s), a list of prerequisites should be checked: All of your salt-master and salt-minon are installed with the with satisfied dependencies Python version is compatible with the version of Saltstack salt-master and salt-minion shouldbe running with the root user Communication and execution ports are well configured and opened The configuration of any firewall between a master and a minion should be taken into account (Example : check your iptables).

Troubleshooting salt-master Troubleshooting salt-minion Troubleshooting ports Troubleshooting using salt-call

Basic ConceptsBefore using Salt some basic concepts need to be known and understood:

Python & YAML & Jinja salt-master & salt-minion & salt-syndic & salt-key Grains & Targeting grains Saltutil Outputters States & Top file Pillars Remote execution Reactors

Basic topology

Using salt-syndic

Authentification

Communication

- Enabling commands to remote systems to be called in parallel rather than serially

- Communications are encrypted

- ZeroMQ is fast and secure

- Configuration files allows supporting large and custom infrastructures

- Salt uses a small and fast network payload

ThanksYou can buy SaltStack for DevOps on :

https://leanpub.com/saltstackfordevops

Get your free sample here :

http://bitly.com/1AKdhRG

Aymen El Amri

www.eon01.com

@eon01