DevOps Bootcamp

Day 2

Introduction to DevOps

Overview and concepts explained

-> Different roles with different job descriptions

-> Good overview of own department

Complete Software Development Process

• to build an application requires all different IT roles.

1. Programming

Software is programmed by developers.

in different programming languages, e.g. Java, Python, and Javascript.

one team per app or per features

new functionalities

fix bugs.

1. Software Testing

Test the new features

test the old code/functionality

testing is done by developers and dedicated testers

Automated testing

1. Release of Software

Build application

run on servers

upgrade existing features

1. Operations

run software in production

no downtime

handle huge traffic

Development vs Operations

Development Operations

1. Programming language OS, mostly Linux

2. Testing frameworks Command line

3. Databases Scripting

4. Version Control Monitoring tools

Communication is very important while implementing but in reality Silos between these two.

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Solution: DevOps Culture

DevOps was just way of working between DEV's and OP's

Common language to communicate

Became its own role and job

DevOps Tasks and Responsibilities

needs some know-how from DEV and OP's team.

additional DevOps specific skills and know-how.

Building CI-CD pipeline

TEST -> BUILD -> PUSH -> DEPLOY

Waterfall vs Agile

Requirement--> Development--> Testing--> Operations

plan everything beforehand

Developers code complete app

testing after everything has developed

huge preparation

. ineffective process

. over time new requirements may arise

. many places of failure and communications

Benefit of Agile

Speed of development, testing and deployment cycles.

each feature gets tested, deployed

immediate feedback

scrum and kanban implementations

Agile methodology is the core of the CI-CD process which is the reason that many companies are adopting it.