![]() Machine was the only way to run Docker on Mac or Windows previous to Docker v1.12. Hyper-V isolation - This isolation mode offers enhanced security and broader compatibility between host and container versions.Īs you can see, Hyper-V can be used to run even native Windows containers, which is generally a source of confusion.įurther, docker-machine is a superseded product.It is approximately the same as how Linux containers run on Linux Process Isolation - This is the “traditional” isolation mode for containers.Windows (Server) Container: A Windows application that runs in an isolated Windows environment. This same container can be run on Windows using virtualization to emulate a Linux environment, but the container is still running on Linux. Linux Container: A Linux application that runs in an isolated Linux environment. Much of the confusion arises with Docker trying to support containerization on Windows.Ī container is considered “native”, if it can run directly on the host operating system. Here is a Windows container version compatibility table which highlights which host OSs support process or hyperv isolation.Įven though this^ page doesn't indicate it, Windows 10 Update 1809 is the first update to support Docker process isolation as noted in the Docker Engine Release Notes.ĭocker evolved on Linux. So you probably won't be able to simply use the exact same containers you've be running on hyper-v. One thing to note is that your windows container base image kernel version must match the kernel version on your host machine. Process isolation support is still fairly new but the latest versions of Windows Server 2019 and Windows 10 can indeed run windows containers without the extra overhead of a hyper-v virtual host. Process isolation containers on Windows run without an additional layer of virtualization (similar to what you may be used to with docker on linux) I believe this is what the OP is looking for when referring to "native" containers. Windows does support "Process Isolation" in addition to "Hyper-v Isolation". So I believe you're required to have Hyper-V support to cover 2 and 4 even if you only want option 3. And between Windows Server Containers and Hyper-V containers, there's an -isolation option on the docker run command line. For Linux and Windows containers, there's a switch in the settings that affects all running containers and commands. What's important to note is that when you install Docker for Windows on a supported server, like 2016, you have options 2, 3, and 4, that you can toggle between. You can read more about the latter two options in Microsoft's docs. Hyper-V Containers which run Windows binaries inside of a separate VM for additional isolation. Windows Server Containers which run Windows binaries on the same host OS, similar to how Linux containers on a Linux OS do not need a VM. If you have Hyper-V available and want to run Linux containers on Windows, this is the preferred option. ![]() you can use 127.0.0.1 instead of the IP of the VirtualBox VM. LinuxKit provides a container based Linux OS, and there's some integration to make it appear less like a VM to the end user, e.g. This was originally the only option for Windows users.ĭocker for Windows using Hyper-V to run the Moby VM, based on LinuxKit, to run Linux images. These are Linux containers running with a Linux kernel inside the VM. Docker support for Windows has several variants:ĭocker Toolbox which includes Docker Machine that will spin up a boot2docker image inside of VirtualBox. ![]()
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