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Can Docker containers have different OS?
No, it does not. Docker uses containerisation as a core technology, which relies on the concept of sharing a kernel between containers. If one Docker image relies on a Windows kernel and another relies on a Linux kernel, you cannot run those two images on the same OS.
Are containers OS dependent?
Containers are uniquely dependent on the underlying host OS, and every container on a given system will share the same OS kernel which is usually a version of Linux. But every container on the system is also completely dependent on the single OS.
Are Docker containers OS independent?
What is Docker? According to Docker, a container is ” a lightweight, stand-alone, executable package of a piece of software that includes everything needed to run it.” And since containers are platform-independent, Docker can run across both Windows- and Linux-based platforms.
Are Docker containers platform specific?
By default, the Docker images we create run on the linux/amd64 platform. This works for the majority of development machines and cloud providers but leaves users of other platforms out in the cold. The most obvious way is simply to build the image on the target platform itself.
Do you need to be aware of your Docker hosts?
Docker containers and services do not even need to be aware that they are deployed on Docker, or whether their peers are also Docker workloads or not. Whether your Docker hosts run Linux, Windows, or a mix of the two, you can use Docker to manage them in a platform-agnostic way.
Is it possible to use Docker with Linux?
One VM uses Windows with a Windows app and the other VM uses Linux with a Linux app. Is the below scenario possible? Bare server with Windows 2016 (no VMs). Install Docker engine. Install Windows app container. Install Linux app container. Does the Docker engine abstract away the OS such that this configuration will run both apps?
Why are Docker containers and services so powerful?
One of the reasons Docker containers and services are so powerful is that you can connect them together, or connect them to non-Docker workloads. Docker containers and services do not even need to be aware that they are deployed on Docker, or whether their peers are also Docker workloads or not.
When to use a network plugin for Docker?
See the vendor’s documentation for installing and using a given network plugin. User-defined bridge networks are best when you need multiple containers to communicate on the same Docker host. Host networks are best when the network stack should not be isolated from the Docker host, but you want other aspects of the container to be isolated.