From Local to Production: A Modern Developer's Journey Towards Kubernetes
Briefly

"Containers are software packages that bundle up code and all of its dependencies together so that the application can run in any computing environment. They're lightweight and portable, making them easy to scale and share across various environments."
"Security comes in the form of configuring which and how many permissions your container has access to. Resources such as CPU and RAM can be constrained using cgroups."
"In this file, you will define the dependencies and any content that your application needs to run. We can then build this containerfile to create a container image."
"Docker was the tool that made setting up containers user-friendly, providing a simplified approach to managing the complexities of Linux processes in containerization."
Read at InfoQ
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