DevOps - What is DevOps and Evaluation metrics

This article is focus on DevOps conception and tech you what is DevOps, and then provide you metric to evaluate if you are ready for DevOps.

Definition

DevOps is an approach based on lean and agile principles inwhich business owners and the development, operations, and quality assurancedepartments collaborate to deliver software in a continuous manner that enablesthe business to more quickly seize market
opportunities and reduce the time toinclude customer feedback. (IBM – DevOps for Dummies)

DevOps (a clipped compound of development and operations)
is a culture, movement or practicethat emphasizes the collaboration and communication of both software developers and
other information-technology (IT) professionals whileautomating the process of software delivery and infrastructure
changes. Itaims at establishing a culture and environment where building, testing, and releasing software, can happen
rapidly, frequently, andmore reliably. (Wikipedia)

A true DevOps approach includes lines of business,practitioners, executives, partners, suppliers, and so on.

Reference Architecture

To practice DevOps effectively, software applications have tomeet a set of ArchitecturallySignificant
Requirements (ASRs) such as deployability,modifiability, testability, and monitorability. These ASRs require a highpriority and cannot be traded off lightly.

Although in principle it is possible to practice DevOps withany architectural style,
the microservices architecturalstyle is becoming the standard for building continuously deployed systems.
Becausethe size of each service is small, it allows the architecture of an individualservice to emerge through continuous refactoring, hence reduces the need for abig up front design and allows for releasing the software early andcontinuously.

Tool Chain

·        Code – CodeDevelopment and Review, continuous integration tools

·        Build – Version control tools, code merging, Build status

·        Test – Test andresults determine performance

·        Package – Artifact repository, Application pre-deployment staging

·        Release – Changemanagement, Release approvals, release automation

·        Configure –Infrastructure configuration and management, Infrastructure as Code tools

·        Monitor – Applicationsperformance monitoring, End userexperience

Adoption

·        Use of agile andother development processes and methods

·        Demand for anincreased rate of production releases from application and business unit stakeholders

·        Wide availabilityof virtualized and cloud
infrastructure frominternal and external providers

·        Increased usageof data center automationand configuration
management tools

·        Increased focuson test automation and continuous
integration methods

·        A critical massof publicly available best practices

Evaluation Metrics

DevOps Requirement	Our Assessment
Category	Item	Adopted	In-Progress	Not started
Culture Change	Mindset
Collaboration
Architecture	Microservices Architectural Style
Deployability
Modifiability
Testability
Monitorability			aed5
Tool Chain	Code	Development and Review Continuous Integration tools
Build	Version control tools Code merging Build status
Test	Test and results determine performance
Package	Artifact repository Application pre-deployment staging
Release	Change management Release approvals Release automation
Configure	Infrastructure configuration and management Infrastructure as Code tools
Monitor	Applications performance monitoring End user experience
Adoption	Use of agile and other development processes and methods
Demand for an increased rate of production releases from application and business unit stakeholders
Wide availability of virtualized and cloud infrastructure from internal and external providers
Increased usage of data center automation and configuration management tools
Increased focus on test automation and continuous integration methods
A critical mass of publicly available best practices