DevOps - IaC | Talk | AGILE GURUGRAM 2018 | 23 - 24 March, 2018

DevOps – IaC
Copyright © Thinknyx Technologies 1
Yogesh Raheja
+91-9810344919
yogeshraheja07@gmail.com

Agenda
• What is DevOps?
• Why DevOps?
• What is DevOps – IaC?
• Why DevOps – IaC?
• Essential tool set of DevOps – IaC
• Introduction to GIT, Jenkins, Ansible and Docker
• Live Demo
• Q&A

What is DevOps?
• “DevOps is gaining momentum In IT Industry”.
• “DevOps is a methodology to make IT a high-performing organization by breaking down
the wall of confusion between Dev and Ops together with structure framework”
• DevOps is not a technology., it’s a frame work, just a mindset change, a cultural
difference, and an effective way of communication and collaboration between different
cross functional teams (Dev[development] + Ops[Operations]) to know the loopholes in
the product lifecycle process.
• DevOps is a culture for Integration, Collaboration and Communication between different
cross functional teams (including ops) for Continuous delivery.
• DevOps encourages Operations to participate early in the Development cycle so that
products are designed to be easily deployable and maintainable.

What is DevOps?
• It is a collection of tools, such as Git, Jenkins, Sonar, Nexus, Docker, Ansible, Salt, Chef,
Puppet and many more.
• It is a collection of tools/technologies and processes to deliver quality services.
• It is a movement to respond faster to the market.
• It is a movement to delivery quality service faster with the right mix of collaboration
between the Development and Operations teams.

DevOps
Software
Development
Infrastructure,
Operations and
Support
Build & Release,
Testing Teams
DevOps

Why DevOps?
• Integration
• Collaboration
• Communication
• Adaptation to Changes
• A Cultural Handshake

Examples
Green Channel
for Organ
Transplant
Demonetization

Copyright © Thinknyx Technologies
What is DevOps - IaC
• IaC – Stands for Infrastructure as Code, evolved with the rise of DevOps Framework.
• IaC is “configuring and maintaining” infrastructure activities (like
os/db/application/network/firewall/DNS any other infra domain deployments,
configurations and maintenance) in the form of codes.
• Code-based files gives the flexibility to replicate the changes from days or hours to within a
minutes or seconds.
• This makes the product development and Release Management lifecycle very fast so that
the organizations can launch their products and services in the market in a very short
duration of time.
8

Why DevOps – IaC?
• The minor changes can be launched in a few minutes without downtime or with minimal
downtime.
• The beauty of Infrastructure as a Code (IaC) lies in its very :
- descriptive nature
- straight -forward execution
- complete transparent nature
• This change will help to bring Product Development (Waterfall, Agile, Lean) and
Infrastructure methodologies (ITIL/ITSM) close to each other.
• This closeness will result in faster product delivery and hence to the Organizational
growth.
9

DevOps - ToolSet

DevOps – Git (Version Control System)
Yogesh Raheja
+91-9810344919

What is Version Control System
12
• As name states Version Control System is the “Management of changes to anything”.
• Version Control is way of storing files in central location accessible to all team members
and enabling them to keep track of changes being done in the source code by whom,
when & why. It also help teams to recover from some inevitable circumstances.

Never mind merging. It's not an SCM, it's a distribution and
archival mechanism. I bet you could make a reasonable SCM
on top of it, though. Another way of looking at it is to say that
it's really a content-addressable file system, used to track
directory trees.
Linus Torvalds, 7 Apr 2005
13
GIT is not a SCM

• Why Git:
- Branching: gives developers a great flexibility to work on a replica of master branch.
- Distributed Architecture: The main advantage of DVCS is “no requirement of
network connections to central repository” while development of a product.
- Open-Source: Free to use.
- Integration with CI: Gives faster product life cycle with even more faster minor changes.
14
Why GIT

BitBucket/GitHub/GitLab
• What is Bitbucket /GitHub/Gitlab?.
• Bitbucket is a Git solution for professional teams. In simple layman language its
a UI for Git, offered by Atlassian, similarly we have different available UI
solutions from Github (most famous) and Gitlab.
• Host in the cloud: free for small teams (till 5 users) and paid for larger teams.
• Host on Your server: One-Time pay for most solutions.
• Visit “https://bitbucket.org/” and click “Get Started” to sign up for free
account.
• Visit “https://github.com/” for Github details

DevOps – CI with Jenkins
Yogesh Raheja
+91-9810344919

What is Continuous Integration
• In Simple term Continuous Integration is a term which means “checking the
compatibility of a change you have made with the remaining code base or modules of an
application or to check the impact of that change on the application functionality”.
• Continuous Integration is not helping us in fixing the bugs but it helps us to Identify
those bugs in the early phases of a development lifecycle and with much faster rate.
• Continuous Integration is not the sole responsibility of the developers but every
individual working in the team is responsible for the Healthy Continuous Integration.

Jenkins History
• Jenkins was originally developed as the Hudson project. Hudson’s creation started in
summer of 2004 at Sun Microsystems. Kohsuke Kawaguchi, the current CTO of
CloudBees, “A Company providing Enterprise Level Support for Jenkins, when he was
working with Sun Micro Systems”
• Certain clashes between Sun Micro Systems and Hudson Community for the Management
of the Project
• Today Jenkins is the most used Continuous Integration tool in the market, which provide
variety of functions to run with the help of large Jenkins Community.

Brief about Jenkins
• An Open Source CI Server with MIT (Massachusetts Institute of Technology)Licensing
Large Community Base
• More than 150,000 installations as on Dec, 2016
• More than 1300 plug-in support which make to compatible with almost every delivery
tool available in market
• Annual meet-up with the Jenkins World
• CloudBees is the biggest promoter and Contributor of Jenkins Community and also
provide Enterprise Support for Jenkins
• Jenkins is a self-contained, open source automation server which can be used to automate
all sorts of tasks related to building, testing, and deploying software.

What Jenkins can do ..?
• Automated build triggers
• Get source code from repository
• Automated build
• Automated Testing
• Trend Reports
• Bug Reporting
• Automate Notifications
• Automate Deployments
• Automate BAU Tasks like Space Cleanup, Server Monitoring, Patching, Configuration
Management run, Containers run etc.

Jenkins Dashboard

DevOps – Ansible
Yogesh Raheja
+91-9810344919

• IT Automation Software for System Administrators:
 Founded in Feb, 2012
 First commercial product release in 2012
 Multiple in built functional modules
 Multiple Community Members
 40,000+ Users
 50,000+ Nodes managed in the largest deployments
 Support for Red Hat, CentOS, Ubuntu, Oracle Linux, MAC, OS, Solaris 10/11, Windows.
 Ansible Controller node Supported on Linux variants only
About Ansible
23Copyright © Thinknyx Technologies

• Michael DeHaan, the author of the provisioning server application Cobbler and co-author
of the Func framework for remote administration, developed the platform called
“Ansible” on 20th Feb’ 2012.
• It is included as part of the Fedora distribution of Linux, owned by Red Hat Inc., and is
also available for Red Hat Enterprise Linux, CentOS, and Scientific Linux via Extra
Packages for Enterprise Linux (EPEL) as well as for other operating systems.
• Ansible, Inc. (originally AnsibleWorks, Inc.) was the company set up to commercially
support and sponsor Ansible.
• It was acquired by Red Hat in October 2015.
Ansible History

• Ansible is an open-source IT automation tool majorly used as Configuration Management
tool by system administrators.
• Ansible is a configuration management system, capable of maintaining remote nodes in
defined states (for example, ensuring that specific packages are installed and specific
services are running).
• Ansible is a distributed remote execution system used to execute commands and query
data on remote nodes, either individually or by arbitrary selection criteria.
• Provides following customer benefits:
• Productivity / Efficiency
• Simplicity
• Scalability
• Consistency
• Operational efficiency
Introducing Ansible

• Descriptive
• Straightforward
• Transparent
[root@yogesh]# cat ntp.yml
---
# This is my Host section
- hosts: 192.168.74.171
# This is my Task section
tasks:
- name: NTP Installation
yum: name=ntp state=present
- name: NTP Service
service: name=ntpd state=started enabled=yes
Infrastructure as Code

Ansible Communication

DevOps – Docker
Yogesh Raheja
+91-9810344919

29
Overview of Containers

30
Containers VS VM’s
Containers are an app
level construct
VMs are an infrastructure level
construct to turn one machine
into many servers

31
Containers and VM’s together
Containers and VMs together provide a tremendous amount of
flexibility for IT to optimally deploy and manage apps.
DEV
PROD

Origins of Docker Project
32
2004
Solaris Containers /
Zones technology
introduced
2008
Linux containers
(LXC 1.0)
introduced
2013
Solomon Hykes
starts Docker as an
internal project
within dotCloud
Mar 2013
Docker released
to open source
Feb 2016
Docker introduces first
commercial product – now
called Docker Enterprise
Edition
Today
Open source community includes:
- 3,300+ contributors
- 43,000+ stars
- 12,000+ forks

Results
33
Speed
• No OS to boot =
applications
online in seconds
Portability
• Less
dependencies
between process
layers = ability to
move between
infrastructure
Efficiency
• Less OS
overhead
• Improved VM
density

Adoption in Just 4 years

Docker Architecture

Docker Architecture
Image
The basis of a Docker container. The content at rest.
Container
The image when it is ‘running.’ The standard unit for app service
Engine
The software that executes commands for containers. Networking and volumes are part of
Engine. Can be clustered together.
Registry
Stores, distributes and manages Docker images
Control Plane
Management plane for container and cluster orchestration

Container as a Service
37
Developers IT Operations
BUILD
Development Environments
SHIP
Secure Content & Collaboration
RUN
Deploy, Manage, Scale
Registry
Control plane
Multi-container
appsEngines running
on servers in cloud
or datacenter
Images stored
in repos
Clients pull and
push images

Live Demo
38
• Live Demo using: Git , Jenkins, Docker and Private Cloud
• Live Demo using: Git , Jenkins, Ansible and Private Cloud

For any queries or questions, please contact:
+91-9810344919
THANK YOU

DevOps - IaC | Talk | AGILE GURUGRAM 2018 | 23 - 24 March, 2018

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DevOps - IaC | Talk | AGILE GURUGRAM 2018 | 23 - 24 March, 2018