An Introduction of “DevOps”


DevOps is a collaboration between Development and IT Operations to make software production and deployment in an automated & repeatable way. DevOps helps to increase the organization’s speed to deliver software applications and services.

The word ‘DevOps’ is a combination of two words, ‘Development’ and ‘Operations’ .
It allows organizations to serve their customers better and compete more strongly in the market. In simple words, DevOps can be defined as an alignment of development and IT operations with better communication and collaboration.

• Before DevOps, the development and operation team worked in complete isolation.
• Testing and Deployment were isolated activities done after design-build. Hence they consumed more time than actual build cycles.
• Without using DevOps, team members are spending a large amount of their time in testing, deploying, and designing instead of building the project.
• Manual code deployment leads to human errors in production.
• Coding & operation teams have their separate timelines and are not in synch causing further delays.

Need of DevOps :-
• Before DevOps, the development and operation team worked in complete isolation.
• Testing and Deployment were isolated activities done after design-build. Hence they consumed more time than actual build cycles.
• Without using DevOps, team members are spending a large amount of their time in testing, deploying, and designing instead of building the project.
• Manual code deployment leads to human errors in production.
• Coding & operation teams have their separate timelines and are not in synch causing further delays.

Features of DevOps:
DevOps allows Agile Development Teams to implement Continuous Integration and Continuous Delivery. This helps them to launch products faster into the market.
1. Predictability: DevOps offers significantly lower failure rate of new releases.

2. Reproducibility: Version everything so that earlier version can be restored anytime.

3. Maintainability: Effortless process of recovery in the event of a new release crashing or disabling the current system.

4. Time to market: DevOps reduces the time to market up to 50% through streamlined software delivery. This is particularly the case for digital and mobile applications.

5. Greater Quality: DevOps helps the team to provide improved quality of application development as it incorporates infrastructure issues.

6. Reduced Risk: DevOps incorporates security aspects in the software delivery lifecycle. It helps in reduction of defects across the lifecycle.

7. Resiliency: The Operational state of the software system is more stable, secure, and changes are auditable.

8. Cost Efficiency: DevOps offers cost efficiency in the software development process which is always an aspiration of IT companies’ management.

DevOps Principles:
1. Customer-Centric Action: DevOps team must take customer-centric action for that they should constantly invest in products and services.

2. End-To-End Responsibility: The DevOps team need to provide performance support until they become end-of-life. This enhances the level of responsibility and the quality of the products engineered.

3. Continuous Improvement: DevOps culture focuses on continuous improvement to minimize waste. It continuously speeds up the improvement of product or services offered.

4. Automate everything: Automation is a vital principle of DevOps process. This is not only for the software development but also for the entire infrastructure landscape.

5. Work as one team: In the DevOps culture role of the designer, developer, and tester are already defined. All they needed to do is work as one team with complete collaboration.

6. Monitor and test everything: It is very important for DevOps team to have a robust monitoring and testing procedures.

Roles, Responsibilities, and Skills of a DevOps Engineer:
Following are some expected Roles, Responsibilities, and Skills that is expected from DevOps engineer:
• Able to perform system troubleshooting and problem-solving across platform and application domains.
• Manage project effectively through open, standards-based platforms.
• Increase project visibility thought traceability.
• Improve quality and reduce development cost with collaboration.
• Analyze, design and evaluate automation scripts & systems.
• Ensuring critical resolution of system issues by using the best cloud security solutions services.
• DevOps engineer should have the soft skill of problem-solver and quick-learner.

What is the future of DevOps?
• Organizations are shifting in their needs to weeks and months instead of years.
• We will see soon that DevOps engineers have more access and control of the end user than any other person in the enterprise.
• DevOps is becoming a valued skill for IT people. For example, a survey conducted by Linux hiring found that 25% of respondent’s job seeker is DevOps expertise.
• DevOps and continuous delivery are here to stay. Therefore companies need to change as they have no choice but to evolve. However, the mainstreaming the notion of DevOps will take 5 to 10 years.

DevOps Automation Tools :The difficulty faced in large DevOps Team that maintain large huge IT infrastructure can be classified briefly into six different categories.
1. Infrastructure Automation
2. Configuration Management
3. Deployment Automation
4. Performance Management
5. Log Management
6. Monitoring.

Mr. Arshad Hussain, Assistant Professor, School of Computer Applications, Career Point University, Kota

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