DevOps: An Organisational Change Agent | DevOps Fundamentals | DevOps Architecture

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DevOps: An Organizational
Change Agent

Session Objectives
ᗍ Introduction to DevOps
ᗍ Understand how DevOps helps to solve problems
ᗍ Benefits of DevOps
ᗍ Know how DevOps provide value to your organization
ᗍ Getting answers to interview questions on DevOps
ᗍ Getting your doubt’s cleared

DevOps
DevOps is the bridge between the development
and operations excellence
It is an extension of the lean and Agile principles,
which streamlines and helps rapid deployments
Application
Platform
Operating System
Infrastructure
Development
Operations
DevOps
"DevOps" is meant to denote a close
collaboration and cross-pollination between what
were previously purely development roles, purely
operations roles and purely QA roles

DevOps Characteristics
DevOps
Faster Time to
Market
Increased ROI
Reduced
Complexity
Continuous
Delivery
Stable System
Get Started with DevOps

DevOps Adoption
In organizations, many different settings may be in place like different tools for developers and operation
teams, different working models and objectives
“DevOps defines the process which streamlines software development with feedback from production, thus
improving the product life cycle”
DevOps Aspects and Inspirations:
ᗍ Culture: Get rid of cultural barriers
ᗍ Automation: Reduce the mundane tasks and automate
ᗍ Measurements: There must be well defined metrics with incentives
ᗍ Sharing: There must be a culture to share ideas, tools

DevOps Adoption Process
Team
Version
Control
Continuous
Integration
Quality
Gates
Approval Production

Challenges
In traditional projects, software is specified and then programmed in stages and not in iterations. Very often the
specifications change, bugs filed and it becomes difficult to align with the original project outline
For software, it’s a long journey to the production
With Agile, programmers and testers became Developers and with DevOps, developers and operations became
DevOps

The biggest business benefit of switching to DevOps is the increase in customer satisfaction.
Big deal about DevOps
IT BENEFITS
experienced through DevOps
FASTER TIME
to market for
new software
releases
MORE
Innovation
IMPROVED
application
stability
ABILITY
to respond quickly
to the business
requirements
REDUCED
IT costs
THE BUSINESS
RECOGNIZES the
value IT can add
44%
45%
44%
44%
34%
17%

Business Goals
63%
IMPROVE
Business efficiency
66%
INCREASE
Customer satisfaction
63%
INCREASE
Application uptime
55%
IMPROVE
Business agility
59%
INCREASE
Customer Conversion
49%
INCREASE
Value to the business

DevOps Building Blocks
DevOps is about constant feedback and reducing the risk of release through improvement in flow of features
from inception to their availability
This can be achieved by reducing the batch size of releases. Instead of deploying ten features every 3 months,
better deploy 1 every few weeks
This will introduce new feature sooner in the market and also ease out the deployment in production with lesser
chance of critical issues

Why DevOps is becoming a Pivotal Factor in New Data Centers?
DevOps is a software development method that uses automation to focus on communication, collaboration and
integration between software developers and IT operations specialists.
The goal is to maximize the predictability, efficiency, security and maintainability of operational processes.

Tools for DevOps
1. Atlas: In addition to configuration management and service discovery, Atlas provides visibility into
infrastructure, including servers, containers, and virtual machines. Atlas enables
2. Chef: Chef turns infrastructure into code. Chef helps to build, deploy, and manage your infrastructure so that
your infrastructure becomes as versionable, testable, and repeatable as application code.
3. Docker: open platform for developers helps to build, ship and run any app, anywhere.
4. Puppet: used to deploy new servers, virtual machines, or services.
5. Saltstack
6. ScriptRock GuardRail
7. Splunk

Benefits of DevOps for IT and Business
Companies that incorporate DevOps practices get more done, plain and simple.
Technical benefits:
ᗍ Continuous software delivery
ᗍ Less complex problems to fix
ᗍ Faster resolution of problems
ᗍ Reduced Deployment Failures and Rollbacks
ᗍ Reduced Time to recover upon Failure
Business benefits:
ᗍ Faster delivery of features
ᗍ More stable operating environments
ᗍ More time available to add value (rather than fix/maintain)

DevOps Skills
DevOps is a bridge between the Operations and Development. The DevOps team needs the knowledge
about both the environments
The team should understand the complexities of Enterprise setups including server farms, network devices
and layouts, storage and BCP plans
It is also about development life cycle of a product, code reviews, deployment complexities and release
changes

Scale of Infrastructure
“Understand the scale at which things operate”
Infrastructure
Code
Infrastructure
Code
Infrastructure
Code
Infrastructure
Code
Infrastructure
Code
Web Services Application Services Data Services
Web 1
Web 2
App Cluster
Node 1
App Cluster
Node 2
DB Cluster
Node 1
DB Cluster
Node 2
Firewall Load
Balancer
Load
Balancer
Infrastructure
Code
Deployment
Code
Deployment
Code
Deployment
Code

Scale of Infrastructure
ᗍ There can be thousands of servers, with complex network connectivity
ᗍ Scalable Architectures with various services and Application stacks
ᗍ There can be software's from multiple vendors and with different configurations for each team
ᗍ Some old code which now no one knows about

Scale of Things – Caching Layers
Internet
2
Web/App Servers
1 Web Browsers
3
Caching Servers
(memcached)
4
Origin Servers

Job Trends – DevOps

Free Trial of DevOps Course
3+ Hours of Training
Material
Access to Assignments &
Quizzes
Real Classroom Experience
Personal Counselling
Sessions

Why SkillSpeed?
Course
Curriculum
from Industry
Experts
Instructor Led
Live Virtual
Sessions
Lifetime access
to Course
Content via
LMS
100% Placement
Assistance
24x7 Support

Course Topics
Module 1
Introduction to DevOps
and its Importance
Module 2
Common Infrastructure
Servers
Module 3
Server Provisioning and
Automation
Module 4
Puppet, System
Performance and Security
Aspects
Module 5
Basics of Bash/Python
Scripting
Module 6
Virtualization Concepts
Module 7
Monitoring and Logging
Module 8
The Useful DevOps
Tools and Commands
Module 1
Introduction to DevOps
and its Importance

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Image References
http://www.datacenterknowledge.com/archives/2014/11/10/survey-nearly-all-will-use-devops-tools-and-
practices-by-2016/
http://www.eweek.com/it-management/slideshows/why-devops-is-becoming-a-pivotal-factor-in-new-data-
centers.html
http://newrelic.com/devops/benefits-of-devops
Google images

DevOps: An Organisational Change Agent | DevOps Fundamentals | DevOps Architecture

DevOps: An Organisational Change Agent | DevOps Fundamentals | DevOps Architecture

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