DevOps for absolute beginners

DevOps for
Absolute
Beginners
Ahmed MISBAH
December 7th, 2020

Agenda
1. Who this session is for?
2. A little about me
3. Before we talk about DevOps
4. DevOps story
5. What is DevOps?
6. DevOps Framework
7. Becoming a DevOps Engineer
8. eDevOps
9. References

Who this session is for?
u Individuals not organizations
u Software Engineers who are curious about DevOps
u Software Engineers wishing to to switch from their
current role to a DevOps related role
u University students wishing to pursue a career in DevOps
and want to start preparing for it

A little about me….
u Currently a Software Architect and team leader
u Delivered many session on DevOps including:
o AMECSE 2016: “Agile Software Development and DevOps”
o AMECSE 2017 and Orange DevTest Days: “The Road to DevOps”
o DevOpsDays Cairo 2019: “How Spinnaker helped us achieve real
CD”
o DevOpsDays Cairo 2020: “Implementing FaaS on K8s using
Kubeless”
o Both previous session were also delivered at Orange DevTest Days
2020
u Published YouTube videos promoting DevOps practices:
o TDD in IaC
o SMED in Software Development using DevOps tools
o How Serverless Architectures can help startups
o Kubeless live demo
o Generalists vs. Specialists in Agile teams

The world before DevOps -
SDLC

The world before DevOps –
Waterfall

V-Model

Incremental and Iterative

Agile

What is DevOps?
DevOps is a culture, movement or practice that emphasizes the
collaboration and communication of both Software Developers
and other Information-Technology professionals while
automating the process of software delivery and infrastructure
changes.

What is DevOps?
DevOps in an extension of the agile mindset and
methodologies that is focused on brining customers value
without compromising creativity (development) and
stability (operations)
“DevOps Fundementals Workshop” V1.0 - SECC

DevOps is not….
u simply combining Development and Operations in one
team
u simply a function or title
u just tools and automation
u a separate team
u a one-size-fits-all solution

DevOps Framework Overview
People
• Mindset
• Roles and
Responsibilities
Process
•Practices:
oDevOps Pipeline
oConfiguration
Management
o5Cs
oAutomation
oIaC
oContainerization
•KPIs
Technology
• DevOps
toolchain
• DevOps periodic
table

DevOps Framework
u People
o Mindset
o Roles and Responsibilities
u Process
o Practices:
o Pipelines
o Configuration Management
o 5Cs
o Automation
o IaC
o Containerization
o KPIs
u Technology
o DevOps toolchain
o DevOps periodic table

Mindset – Lean Thinking
Lean (SWD or Manufacturing) is a systematic method in which
the core idea is to maximize customer value while
minimizing waste
u Value is everything that your customer is willing to pay
money for
u Waste is any action or step in a process that does not add
value to the customer. In other words, waste is any process
that the customer does not want to pay for

Mindset – Kanban Principles
1. Start with existing process
2. Respect current process, roles, responsibilities and titles
3. Leadership at all levels
4. Agree to pursue incremental, evolutionary change

Roles and Responsibilities
No changes! Only added benefits to each role

Mindset Conclusion
1. Bridging gaps
2. Delivering value to customers
As simple as that!

DevOps Framework
u People
o Mindset
u Process
o Practices:
o DevOps Pipeline
o 5Cs
o Automation
o IaC
o Containerization
o KPIs
u Technology
o DevOps toolchain
o DevOps periodic table

DevOps Pipeline
A DevOps pipeline is a set of practices that the development (Dev) and
operations (Ops) teams implement to build, test, and deploy software
faster and easier. One of the primary purposes of a pipeline is to keep
the software development process organized and focused.

Software Configuration
Management (SCM)
Software
Configuration
Management
Version
Control
Work-item
Tracking
Traceability
Baselining
CM
Environment
5Cs
Release
Management
Software Configuration Management(SCM) is a process to systematically
manage, organize, and control the changes in the documents, codes, and
other entities during the Software Development Life Cycle. The primary goal
is to increase productivity with minimal mistakes.

5Cs
Continuous
Integration
Continuous
Testing
Continuous
Delivery
Continuous
Deployment
Continuous
Monitoring
5Cs of DevOps are a set of practices in software development that are of
repeatable nature and can be automated to increase quality and
productivity.

Automation
Automation is the process of creating software and systems to replace
repeatable processes / activities and reduce manual intervention, thereby
significantly increasing both quality and productivity.
Examples:
u Build (Ant, Maven, Gradle, Sbt, Grunt, Gulp)
u Unit tests (JUnit)
u Code Inspection (SonarQube)
u Packaging (JAR, Docker)
u Deployment (Jenkins, Ansible, Spinnaker)
u System/Functional tests (Cucumber, JBehave, Robot Framework,
Selenium, Appium)
u Non-functional tests (Jmeter, Gatling, OWASP ZAP)
u Provisioning (Ansible, Puppet, Chef, Terraform)
u Documentation (Swagger)

Infrastructure as Code
Infrastructure as Code (IaC) is the process of managing and
provisioning computer data centers through machine-readable
definition files, rather than physical hardware configuration or
interactive configuration tools.

Containerization
Containerization is the process of packaging an application
along with its required libraries, frameworks, and
configuration files together so that it can be run in various
computing environments efficiently.

KPIs - CALMS Model
• People focus
• Mindset
• Embrace change
Culture
• CI/CD
• Infrastructure as Code (IaC)Automation
• Focus on producing value for the end-user
• ProductivityLean
• Measure everything
• Show improvementMeasurement
• Collaboration
• Communication
• Open information sharing
Sharing

More KPIs
u Mean Time To Production: How long does it take for any newly committed
source code to reach production?
u Deployment Frequency: How often are releases deployed into production?
u Average Lead Time: How long does it take for a new feature to be
developed, built, tested, and deployed into production?
u Deployment Speed: How much time does it take to deploy a new release
into production?
u Production Failure Rate: How often do failures occur in production?
u Mean Time To Recover (MTTR): How long does it take to recover from a
failure?

DevOps Framework
u People
o Mindset
u Process
o Practices:
o DevOps Pipeline
o 5Cs
o Automation
o IaC
o Containerization
o KPIs
u Technology
o DevOps toolchain
o DevOps Periodic Table

DevOps Toolchain Example
Plan
Code
Build
TestRelease
Deploy
Monitor

Specific Skills per function /
role
Developer
•TDD
•BDD
•Static Code
Analysis
•Serverless
Architectures
•SMED (e.g.
Vagrant)
Tester / SDET
•BDD
•Test
Automation at
all levels and
of all types
•Chaos
Engineering
Cloud Architect
/ Engineer
•Solutions
Architecture
for major
cloud vendors
•Cost
optimization
SRE (DevOps
Engineer)
•IaC
•Configuration
Management
tools (e.g.
Ansible)
•Chaos
Engineering
•Infrastructure
testing tools
(e.g.
ServerSpec)

More topics
u NoOps
u Continous Feedback
u Continous Documentation
u Continous Inspection
u Everything as Code
u GitOps
u Infratsructure testing and Chaos Engineering
u AIOps
u MLOps

Thank You
https://twitter.com/AhmedMisbahTech https://www.linkedin.com/in/ahmed-
misbah-msc-251a3a32/
https://www.youtube.com/channel/UCZxEB
qvA1fGKLusLwoadf_w

DevOps for absolute beginners

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