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What Are Containers in DevOps & What Are the Advantages of Containers

What are containers in DevOps? DevOps, a term coined by combining "Development" and "Operations," goes beyond its literal meaning to encompass a broad range of concepts and practices

What is DevOps?

Before we discuss “what are containers in DevOps”, let's clarify some more basic concepts. DevOps aims to achieve a fast and stable workflow that continuously delivers value to users throughout the entire process, from development to production deployment, encompassing ideas like new software features, feature enhancement requests, or bug fixes. This approach requires close communication, efficient collaboration, and mutual understanding between development and operations teams.

Furthermore, DevOps promotes scalability and flexible deployment. With DevOps, the most pressing tasks can be resolved through self-service and automation. Developers who typically write code in a standard development environment can work closely with IT operations personnel to accelerate software development, testing, and deployment while ensuring the stability and reliability of their work.

However, embracing DevOps means that changes in code become more frequent, and the use of infrastructure becomes more flexible. Traditional management strategies fall short of meeting these demands. To stay ahead, it is essential to adapt and seize the opportunity.

What are Containers in DevOps?

Cloud environments have made virtualization easier and faster for developers, and containers play a crucial role as virtualization sandboxes, containing everything from running processes to microservices to larger applications. Think of them as toy boxes filled with everything you need to play with.

 

Containers allow developers to package everything needed to run an application—code, runtime, and system tools—in one convenient location. This enables developers to create applications and deploy them on servers with the operating system itself, making containers lightweight and portable.

Advantages of Containers in DevOps:

  1. Enhanced Security for Data and Applications: One key advantage of containers is their ability to isolate application code or even entire infrastructure stacks as needed. Using containers, operations teams can set up namespaces to keep test and production environments separate, even if they share the same kernel. Containers can also ensure that only specified users can access their contents, providing the operations team with complete control over their architecture.
  2. Modular Launch for Continuous Updates: Containers offer a way to package and execute resources so that the composition of applications and infrastructure aligns with expected outcomes. By using smaller, more manageable tools known as microservices, teams can achieve high composability and modularity when writing code or configuring IT resources. Containers allow for integrated compositions, and interchangeable components, and assist operations teams in supporting continuous delivery and updates without interrupting services or application support.
  3. Agility Enhancement: Containers enable developers to quickly create new applications by providing all the necessary components on demand. This empowers developers to update and iterate in real time. As developers move rapidly, operations support processes must keep pace. Ops teams need to test and evaluate multiple IT scenarios and be prepared to execute emergency plans swiftly. Containers allow ops teams to set up testing environments within the network scope and ensure timely responses to any issues during the application lifecycle.
  4. Facilitating Developer Collaboration: When multiple parties access containers simultaneously, developers, testing, and production support teams can stay up-to-date throughout the product lifecycle. Containers ensure that everyone, including the ops team, can work in the same environment, eliminating differences in roles and ownership.
  5. Controlling the DevOps Environment: Control over the IT environment is crucial for ops teams, especially when it comes to compliance. CIOs, in particular, must ensure end-to-end business compliance, and containers provide advanced granularity control. Role-based access and container namespaces offer a way to view applications and infrastructure resources as a single entity, preventing unnecessary access at the group and user levels or from other applications and software.

Also, containers can be beneficial for app testing as they provide isolation and reproducibility, making it easier to test and deploy applications consistently across different environments. And if you're looking for more convenient and affordable testing solutions, WeTest, based on real devices, is the best choice for you.

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