Comparison between agile development and Devops

Agile development and DevOps The difference between

Agility and  DevOps  The main difference between them is ： Agile is a philosophy about how to develop and deliver software , and  DevOps  Describes how to continuously deploy code by using modern tools and automated processes .

Agile Manifesto

If software developers are agile , Their behavior is consistent with the values and principles defined in the Agile Manifesto .

Agile Manifesto

On  2001  Written and signed by software development leaders , It defines twelve principles and four basic values that agile practitioners must follow , Include ：

• Individuals and interactions are higher than processes and tools

• Working software is better than comprehensive documentation

• Customer cooperation is higher than contract negotiation

• Responding to changes is higher than following the plan

Although the importance of Agile Manifesto to the software development community is self-evident , But its length is very short .  Less than in all 500 word .

In addition to insisting that software continuity will be the top priority of agile to customers , The declaration does not provide any concise guidance , Nor does it recommend any specific process that can be followed .  This is purely a philosophical exercise .

How to define  DevOps？

Compared with agile ,DevOps  Defined document . DevOps  There is no universally accepted definition .

We don't even know  DevOps  When did you enter the public dictionary , Although many people point out  John Allspaw  and  Paul Hammond  stay  2009  year  Velocity  Speech at the conference

《 Every day 10+ Deployment ：Flickr Development and operation and maintenance cooperation on 》

Is its beginning . Many people also believe that  Gene Kim  Of 《 Phoenix plan 》 So is a book  DevOps  A driving factor for popularization .

stay  2009  Year of  Velocity  In the demonstration ,Allspaw  and  Hammond  It describes how their confidence in software testing routines has led to a lot of trust between development and operation , The company has even implemented a process , Code can be automatically deployed to the production environment every day  10  More than once . At that time, such things as automation were considered to be shocking .

since  2009  Since then , Many changes have taken place in the software development industry , but  DevOps  The cornerstone of is still ：

• Trust and collaboration between development and operation and maintenance teams

• Rely heavily on comprehensive software testing routines

• Integrate modern tools to simplify development and operational tasks

• It can be automatically deployed to production without any human intervention or checkpoints

Agility and  DevOps  Culture

Although many people argue  DevOps  What is it , But most definitions include “ Culture ” The word" . This raises a question ： What is culture ？

Generally speaking , Culture can be defined as any group of like-minded people , They use a common set of tools and follow a repeatable process .

essentially , Culture can be summed up in the following three points ：

• people

• technological process

• And the tools they use

Agility and  DevOps  Our goals and achievements are closely linked .

DevOps  Tools and processes

stay  DevOps  In the world of , Popular tools used by practitioners include ：

• Git  and  GitHub

• Docker  And the container

• Jenkins  other  CI  Tools

• For choreography  Kubernetes

• Chef  and  Puppet

• Static code analysis

• Terraform

• Public cloud

Using these generated processes is the continuous integration and deployment of code （CI/CD）.

Agility and  DevOps  What are the similarities ？

be engaged in  DevOps  What's unique about people in ？

What are the prerequisites for the success of digital transformation ？

This is agility and  DevOps  Intersection of .

In order to make  DevOps  Play a role , all  DevOps  Practitioners must accept agile thinking .

all  DevOps  Practitioners believe ：

• The automation of manual tasks and the importance of unfinished work

• The importance of working with self-organizing teams of active individuals

• Make continuous delivery of software to customers the highest priority

Each of these points directly maps to one of the twelve principles listed in the Agile Manifesto .

DevOps  Infinite loop shows the iterative development process adopted by agile teams .

How to combine agility with  DevOps  Combine ？

DevOps  People must be agile .

To implement correctly  DevOps,DevOps  Practitioners must accept agile thinking .

Agility and  DevOps  Practitioners not only have a common mode of thinking , And their goals are also very consistent .

DevOps  The ultimate goal of the transition is to fully automate the deployment of working code into production . This represents.  DevOps  Complete enlightenment .

The Agile Manifesto unambiguously States , Its highest priority is to continuously deliver software to customers .

Agility and  DevOps  We all believe in building software 、 The best way to ensure transparency and promote sustainable development is to put working software in the hands of customers .

Agility and  DevOps  With exactly the same goal , Let the development and operation teams use modern tools and follow the process , Deliver the software to customers as soon as possible .

Agility and  DevOps  Similarities and differences

To sum up , Here is  DevOps  The most common differences and similarities between and agile ：

1.  Agile is defined by the Agile Manifesto , and  DevOps  There is no universally accepted definition

2. DevOps  Defines a work culture , Agile is a software development concept

3.  The top priority of agile is continuous delivery , and  DevOps  Is continuous deployment

4. DevOps  Insist on the automation of all manual tasks , Agile is about “ Unfinished work ”

5. DevOps  Practitioners advocate agile thinking , Agile requires participants to organize and motivate themselves

Agility and  DevOps  Combination

Agility and  DevOps  Not conflicting concepts . in fact , The opposite is true .

Have agile thinking and accept  DevOps  People of different cultures have a common goal , That is to continuously deliver and deploy valuable software to customers .

To implement correctly  DevOps, All participants must accept agile thinking . That's the only way , be based on  DevOps  Digital transformation will succeed .

【 notes 】 This article is translated from ：

Agile vs DevOps: What's the difference? (theserverside.com)