This file cannot be launched directly

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Image
Based on the image, presented as an immutable file, containers are deployed. More precisely, this file represents packaged applications that are planned to be launched inside the container. In fact, it is an analogue of the image (or distribution) of the operating system, used when installing it on a computer.

It must first be deployed into a ready OS, which will then be an analogue of a container. The difference lies in the implementation. Containers are deployed much easier and faster than installing distributions - literally with one command. Sometimes in technical literature, an image is described as a process launch template.

Container
As mentioned earlier, the container deployed from the image is a ready-to-run application. russia rcs data It also provides a secure and isolated environment where the program can fully operate.

Compose
It is assumed that one container is intended to perform one function. This means that a complex task will require deploying multiple images. Of course, you can do this manually.