What is the main task of the Docker platform in the process of application development and operation?

The main task of Docker is to provide containerization of applications, that is, to package the application together with all its dependencies and runtime environment into an isolated container. This allows:

• Guarantee that the application will work the same on different machines and environments.
• Simplify deployment and scaling of applications.
• Ensure process and resource isolation.

During development, Docker helps quickly create and test applications in a standardized environment, and in operation — easily manage and update services without conflicts with the system or other applications.