What is DevOps?
DevOps is a set of practices which automates the processes between IT and Software development teams to develop, test and release software much faster and more reliably. DevOps is founding on building a collaborative culture between teams that functioned in relative silos.
It is the combination of cultural philosophies, tools and practices that increase an organization’s ability to deliver services and applications at high velocity: evolving and improving products at a rapid pace than others using conventional software development and infrastructure management processes.
The primary benefits include faster software releases, increased trust and ability to solve critical issues quickly and to manage unplanned work in a better way. For having a clear understanding, DevOps means a combination of distinct people with different things covering a lot of ground.
What are the DevOps tools?
DevOps is a culture in software engineering. The aim or objective of DevOps is to unify software development and software operations (Dev+Ops). It is a broad area involving distinct tools at different phases/stages. There are separate tools available to implement DevOps.
Any tool you select entirely depends on Model and infrastructure in which you want to develop particular software. There is no concept of one DevOps tools is higher than the other. It is just because of the choice of the user or the business infrastructure that requiring that tools.
Some among the most common DevOps tools used frequently:
Jenkins: Written in Java and is a continuous integration server used to test and tell about changes in real time. It also helps developers to solve bugs in code and to automate the testing.
Docker: Platform for distributed applications helps engineers to build and run an application. It helps in assembling apps from components.
Git: Being a version control system helps and allows engineers to track file changes. Git’s features include adding/moving files, ignoring specific data, branches, and finding versions introducing a bug using binary search.
Selenium: To develop tests, automate tests and provides the easy interface. Selenium offers a portable software testing framework for web applications.
Ant: A Java library and a command line tool, helps to drive processes as targets and extension points based upon each other. It provides numerous built-in tasks and can plot any method that is described regarding goals and functions.
Ansible: An open source tool that automates IT infrastructure and apps including network configuration, cloud deployments, and development environment creation.
What is the Importance of DevOps?
DevOps describes a set of processes and culture that combines development and operations teams to complete developing a software. It allows companies to create and improve products at a quick pace when compared with conventional software development methods.
Here are the top reasons why Industry is quickly adopting DevOps principles:
- Shorter Development Cycles, Faster Innovation
- Reduced Rollbacks, Deployment Failures, and Time to Recover
- Improved Communication and Collaboration
- Increased Efficiencies
- Reduced Costs and IT Headcount
Using open-source DevOps tools makes you experience the power back from proprietary IT vendors. DevOps technologies provide you with the freedom and flexibility to scale your business and to choose your resources to invest.
What does a DevOps Engineer do?
DevOps is the new phenomenon taking over the corporate boardrooms by storm and bringing in new principles and methodologies to create and deploy software in this new software age.
Here is the list of skills that a DevOps engineers need to possess inherently:
- Be an excellent Sysadmin
- Hands-on experience in network and storage
- Deploy virtualization
- Knowledge of coding goes a long way
- Understanding the automation tools
- Security aspects of the IT organization
- Knowledge of Testing
- Soft skills are a must-have
There is an intense need of experts having an ideal arrangement of DevOps abilities in the DevOps area. Today DevOps has transformed into a requesting space with ground breaking associations sending code up to multiple times more than contenders. The achievement rate of organizations is over 50.
The primary tasks of DevOps engineers include:
- Expertise in programming code testing and arrangement
- A firm establishing in the agile procedure of undertaking the management
- Deploying the different automation devices of DevOps to perfection
- Working with an assortment of open source tools and advancements
- Having exhaustive learning of the IT activities and sysadmin roles
- Ability to associate the technical and business objectives with an energetic willingness
- Excellent aptitudes in correspondence and working with groups.
The DevOps engineer should ensure that the code has changes that are incremental and frequent. Thus a DevOps engineer should know distinct coding elements along with software development kit and libraries to integrate discrete SQL components of data manager or software release messaging tools on the production infrastructure or the operating system.
Therefore, the role of a DevOps engineer is not just one position but has to struggle between multiple tasks to do justice to the task assigned to him. He should have the skill sets like coding, testing and integrating. The functions of a DevOps engineer is about solving organization problems and improving the business process.
DevOps Vs Agile: What’s the Difference?
To distinguish between DevOps and Agile in a better way, let’s take a look back at the pre-agile era. While both of these are common terminologies used in software development, they are neither same nor foes.
Definition of Agile and DevOps
DevOps is the offspring of the model of Agile that works beyond the software team. Both of these procedures each other complements for faster production and quick delivery, but both of them perform it differently. Coming to Agile, it follows an incremental approach to fix complex tasks into small sub-tasks known as modules. DevOps is an operational philosophy, which combines cultural practices and tools to achieve faster delivery.
The approach in Agile and DevOps
The agile model depends on Lean thinking that emphasizes constant iteration for incremental delivery. It is collaboration between the development team and the end users. DevOps is a mutual collaboration among the groups of development and operations, therefore the name. Merely working on software, it emphasizes the software and services to accelerate the delivery process.
The culture of Agile and DevOps
DevOps is the togetherness of cultural practices that increase the ability of an organization to deliver applications and services at a relatively quick pace. The development and operations teams work combinable as part of a DevOps team. On the contrary, Agile is a modern approach that encourages change to development. Agile promotes smaller changes that may or may not lead to more significant changes over time.
Communication for Agile and DevOps
DevOps follows a modern documentation approach to communicate with relevant teams instead of conducting daily meetings. Agile, on the other hand, is a methodology revolves around a variety of formal/informal meetings are at the agile core. It believes in constant feedbacks and daily team meetings to make development teams more efficiently and productively.
Team Size for Agile and DevOps
DevOps believes in the number that means bigger the better; many teams work together as a single team to work on distinct theories. Agile on the other hand think in a small group, the faster they can deliver with fewer complexities.
Automation in Agile and DevOps
The automation of DevOps methodology is synonymous to maximize efficiency and minimize interruptions. Agile on the other hand also a modern approach to software development without anticipation.
DevOps Interview Questions
If you’ve started preparing to achieve a job role in industry of Information Technology for development and operations roles, it’s a challenging and on-demand field that will consider some tough preparation to break into. Some of the common DevOps Interview Questions and Answers helping you to acquire your dream job in DevOps.