DevOps

They are a combination of cultural philosophies, practices, and tools that increase an organization’s ability to deliver applications and services at speed—developing and improving products faster than organizations that use traditional software development and infrastructure management processes. This speed allows organizations to better serve their customers and compete more effectively in the marketplace.

What is DevOps?
Under a DevOps model, development and operations teams are no longer “siloed.” Sometimes the two teams merge into one, where engineers work across the entire application lifecycle, from development and testing to deployment and operations, and develop a variety of skills not limited to a single function.

In some DevOps models, QA and security teams are also more integrated with development and operations and are involved throughout the application lifecycle. When security is the priority of all DevOps members, it is sometimes referred to as Dev Security Ops.

Teams use practices to automate processes that had previously been manual and time-consuming. They use a stack of technology and tools that help them operate and improve applications quickly and reliably. In addition, these tools help engineers independently perform tasks that would normally have required the help of other teams (e.g., deploying code or provisioning infrastructure), further increasing the speed of the team.

Benefits of DevOps

Velocity
Move faster and innovate for your customers faster, better adapt to changing markets, and become more effective in achieving business outcomes. The DevOps model enables your development and operations teams to achieve these outcomes. For example, microservices and continuous delivery allow teams to take ownership of services and update them faster.

Fast delivery
Increase the frequency and pace of releases to innovate and improve your product faster. The faster you release new features and fix bugs, the faster you can respond to customer needs and develop a competitive advantage. Continuous integration and continuous delivery are practices that automate the software publishing process, from creation to deployment.

Reliability
Ensure the quality of application updates and infrastructure changes so you can reliably deliver faster while delivering a positive experience for end users. Use practices such as continuous integration and continuous delivery to verify that every change is functional and secure. Monitoring and logging practices help you stay informed of performance in real-time.

Scaling
Operate and manage your infrastructure and development processes at scale. Automation and consistency help you manage complex or changing systems effectively with less risk. For example, infrastructure as code helps you manage your development, test, and production environments more repeatably and effectively.

Enhanced collaboration
Develop more effective teams with a DevOps cultural model, which emphasizes values such as ownership and responsibility. Developers and operations teams collaborate closely, share many responsibilities, and combine their workflows. This reduces inefficiencies and saves time (e.g., reduced transfer times between developers and operations, when writing code that takes into account the environment in which it runs).

Safety
Move quickly while retaining control and maintaining compliance. You can adopt a DevOps model without sacrificing security by using automated compliance policies, granular controls, and configuration management techniques. For example, when you use infrastructure as code and policy as code, you can define and monitor compliance at scale.

Reference.
https://aws.amazon.com/devops/what-is-devops/?nc1=h_ls