What system does docker need?

In current software development, Docker has become an increasingly popular containerization technology. Docker can run on different operating systems, but not all operating systems can meet the needs of Docker. So what kind of system does Docker need?

First of all, Docker can run on various types of operating systems, including Linux, Windows, macOS, etc. For Linux systems, Docker officially provides good support, and Docker installation packages are available in most Linux distributions. Because Docker is a virtualization technology based on the Linux kernel, it is more convenient to run Docker on Linux.

Secondly, Docker requires Linux Kernel 3.10 and above. This is because Docker takes advantage of many Linux Kernel features, such as Cgroups, Namespace, AppArmor, etc. These features were added after version 3.10. If you want to run Docker on an earlier version of Linux, you need to upgrade the kernel to version 3.10 or above first.

In addition to Linux systems, Docker can also run on Windows and macOS systems. In Windows, Docker requires Docker Desktop for Windows. In macOS, Docker requires Docker Desktop for Mac. It should be noted that in Windows and macOS, Docker can only run Linux containers, not Windows containers. This is because Windows and macOS systems do not have native support for containers, so Docker runs in a virtual machine.

Finally, Docker requires relatively new hardware configuration to run. The generally recommended hardware requirements are: 64-bit CPU, 2GB of memory, and 10GB of hard drive space. These hardware configurations can meet the operating requirements of Docker and can support the operation of Docker containers.

To sum up, Docker needs to run on an operating system that supports Linux Kernel 3.10 and above. For Windows and macOS systems, Docker Desktop needs to be installed and can only run Linux containers. In addition, in order to ensure the running effect of Docker, certain hardware configuration is also required. Therefore, when selecting the operating system and hardware configuration, you need to consider it based on the actual situation so that you can better use Docker.

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