DevOps is a set of processes that synchronize to integrate development teams and processes. These bring high speed and accuracy in creating a relationship between development and IT operations. DevOps increases organisations ability to deliver apps and services at great speed. DevOps has a focus on secure design, development and delivery. DevOps cycle is Plan-Code-Deploy-Test and Release. It shortens the system’s development life cycle. It provides a continuous delivery with high software quality. DevOps is complementary with Agile software development.

DevOps is a set of practices that combines software development and IT operations. In a data driven world, DevOps is critical. It brings about seamless integration between development and operations teams. Thus it is a cross-functional combination. There is no universal definition of DevOps. Its key features are shared ownership, workflow automation and rapid feedback. DevOps engineers use software to solve their own team’s software engineering problems. They focus on communication, collaboration and integration of developers and IT professionals. In today’s cloud computing environment, in a virtual workplace, there should be integration. It makes business efficient as well as effective without diluting the user-experience. It reduces the time taken between committing a change to a system and the change being placed in normal production.

DevOps is a term used in multiple contexts. It is a combination of specific practices, cultural philosophies and practices, change induction and tools. It improves an organisation’s ability to deliver apps and services at high speeds. It enables business to work faster and build better apps. There is faster development of new products and easier maintenance.

DevOps is complementary to Agile software development. It is similar to Plan-Do-Check-Act cycle or the Agile approach. Whereas DevOps brings two large siloed teams together, Agile brings smaller teams together.

The tools used in DevOps are referred to as toolchains. These are expected to fit in coding, building integration, testing for feedback, packaging, releasing automation, configuration of infrastructure and monitoring.

DevOps focuses on life cycle of continuous development, integration, testing, monitoring, feedback, deployment and operations.

There are frequent incremental changes, and DevOps engineers rarely code from scratch. They must understand the basics of software development languages — say Python, Java, JavaScript, PHP, Bash, Shell and Node. These are most recommended programming/scripting languages. They should be familiar with development tools. They should be able to create a new code or update an existing one.

DevOps is flexible with both cloud and enterprise infrastructure. Azure DevOps is a suite of related tools that allows software team to track work, manage code, run builds, deploy apps and manage tests.

Amazon Web Services (AWS) provide services when you practise DevOps at your organisation.

Scrum is a framework used by teams to manage their world. It implements principles of Agile.

A DevOp engineer must be able to configure and manage databases such as MySQL and Mongo. He should master DevOps automation tools and CI/CD processes.

The total DevOps market is estimated to be $6.6 billion. It will grow over the next decade.

A development engineer must know containers which enable him/her to generate apps and install them on servers from laptops. A development engineer must have grasp of programming languages. He/She should know the basics of Java, Perl, Python. He should know scripting or writing code to automate repeatable processes. He/She should be aware of DevOps tools such as Ansible, Chef, Doctor, ELK Stack GIT, Jenkins, Puppet, Selenium and Splunk. He should have knowledge of testing tools.

We need DevOps with security or DeVSecOps. There are security concerns of clients especially banks. There are mission critical applications. The cycles are short. Security functions should be addressed earlier, rather than at the end. It is called DeVSecOps. It is actually a superset of DevOps. The ability to do source control is important, especially Git tools or GitHub. One should have knowledge of Linux. There is threat modelling, security testing, incident management.

DeveSeCOps engineers are being paid more, than their DeVOps counterparts.

In a DevOps course, you learn DevOps essentials, managing source code — Git and GitHub, understanding and using Build tools, containerization basics using Docker, continuous Integration using Jenkins, continuous Testing, Docker commands and use-cases, kubernetes, configuration using Chef and Ansible, continuous monitoring using Nagios and AWS DevOps Services.