it says that prereqisite is windows 10 pro or enterprise edition because of hyper-v but ia that for running windows containers only or is pro/enterprise edition needed for running linux containers also?
If you don't have access to a Windows 10 version with Hyper-V, you can use the older Docker Toolbox product which relies on VirtualBox: https://www.docker.com/products/docker-toolbox
As #friism pointed out w/o HyperV you have to use the old Docker toolbox option. This is due to the fact that the docker daemon does not run on Windows natively. Instead it started a small Linux machine (on windows using hyperV); inside this linux machine is where all the docker and tools are executed. The desktop client is simply a nice UI to send the commands to the virtualized linux machine.
Related
We have Jenkins Build machines of Windows OS.
But, we have Linux EC2 instances for running our Apps.
So afraid, If we can use the Docker images built on windows to spin up containers in Linux machines.
Windows machine:
docker build -t "app-image-built-on-windows" .
Linux machine:
docker run app-image-built-on-windows
So is Docker images cross platform compatible?
Please give the answers considering the usage in PROD for long time.
if your docker image is linux based then yes you can build on windows.
Windows Subsystem for Linux (WSL) 2 introduces a significant architectural change as it is a full Linux kernel built by Microsoft, allowing Linux containers to run natively without emulation.
and if your build was successful, you can run the container on linux machines.
This question already has answers here:
How can I run a docker windows container on osx?
(3 answers)
Closed 1 year ago.
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I want to be able to run Windows Docker Containers on my Mac, it seems this was sort of supported using Docker Toolbox
How can I run a docker windows container on osx?
But it seems that this is now deprecated and we should be using Docker Desktop now.
Docker Desktop has a better and New Hypervisor called HyperKit instead of Virtual Box https://docs.docker.com/docker-for-mac/docker-toolbox/
Docker toolbox allowed starting Windows Containers using VirtualBox, so not sure if that mean's that this is still possible?
I have found a reference to putting Docker Desktop into "Windows Container Mode" here https://www.clearpeople.com/insights/blog/2018/june/sitecore-demo-in-a-docker-container
But I cannot find anywhere to enable this, any help or insight would be very much appreciated.
There is a related question here How can I run a docker windows container on osx? but it's so old that is irrelevant and should not be a reason to lock this question.
Docker only runs natively on Linux machines because it needs Linux kernel features called namespaces and control groups. Docker containers are built from cut down Linux distributions.
The original solution to running Docker on OS X and Windows was Docker Toolkit. This was actually a Linux virtual machine running in the VirtualBox Hypervisor. The VM had Docker installed and could run containers.
Docker Desktop for Mac still makes use of a virtual machine running Linux running in the HyperKit Hypervisor. This virtual machine is lightweight and effectively hidden from the user.
Likewise Docker Desktop for Windows makes use of a virtual machine running in the Hyper-V Hypervisor. It can also run Windows containers.
To run Windows containers you need to have a Windows machine running Docker. The Windows machine can be virtual machine running on a Mac or Linux machine.
I know I am late to the party but as of 2021, this is the easiest setup to get a windows container running on macOS:
https://github.com/StefanScherer/windows-docker-machine
Install vagrant and virtual box
Clone the repository above and change directory into it
vagrant up --provider virtualbox 2019-box
docker context use 2019-box
I followed this setup and I could use the following windows image
mcr.microsoft.com/windows/servercore:ltsc2019
Please note that the windows version of your host must match the container image. This is mentioned here: https://hub.docker.com/_/microsoft-windows
Windows requires the host OS version to match the container OS
version. If you want to run a container based on a newer Windows
build, make sure you have an equivalent host build.
I have installed the Docker toolbox on Windows 8 and I am able to run Docker containers. However I don't have the Docker icon in the system tray and thus I can't change the Docker settings. Specifically I need to switch the Docker OS from Linux to Windows.
Is there a way how can I get the icon to be shown in the system tray? Has anyone ever had this issue?
Alternatively, is it possible to switch the Docker OS from CLI? According to the Docker forum I need to run SwitchDeamon, however I don't have this tool in the Docker installation folder and VisualStudio is also not able to switch the OS.
See microsoft doc:
Windows Containers include two different container types, or runtimes: Windows Server Containers & Hyper-V Isolation
This means windows container can only work with hyper-v or windows server 2016+, so if you not use server version, windows 10 professional which support hyper-v is a must to run windows container.
With docker toolbox(not docker for windows), you can just use virtualbox to run linux containers. So if you use windows7, windows8, windows10 home edition, then you surely use docker toolbox, then you can just use linux container.
Here also a discussion on docker forums.
As a result, there is no meaning to afford a switch on windows8 as docker toolbox just support linux container.
I installed the latest docker for windows from website.
there is no virtualbox installed. How windows run a linux container in my computer ? Is have a buildin linux kernel in windows?
It uses HyperV in newer releases. VirtualBox was used by docker-machine which is part of docker-toolkit.
Inside of the VM, there is a Linux kernel in a linuxkit based OS that is part of the moby project.
Connecting to the docker socket on Windows is described in this FAQ: https://docs.docker.com/docker-for-windows/faqs/#how-do-i-connect-to-the-remote-docker-engine-api
I need to install Docker on my pc with Windows 10 home. I read that I can only install Docker Toolbox. Is there any way to have the latest Docker version instead without upgrading my pc to windows 10 pro?
Thanks
Update
Docker can now be installed on Windows 10 Home (version 2004 or higher).
Refer to this article for installation instructions
https://docs.docker.com/docker-for-windows/install-windows-home/
Old Answer
Docker for Windows requires Hyper-V, and Hyper-V requires Windows 10 Pro (or Windows Server). So no, you can't run Docker without upgrading.
https://docs.docker.com/docker-for-windows/install/
README FIRST for Docker Toolbox and Docker Machine users: Docker for Windows requires Microsoft Hyper-V to run. The Docker for Windows installer enables Hyper-V for you, if needed, and restart your machine.
https://learn.microsoft.com/en-us/virtualization/hyper-v-on-windows/quick-start/enable-hyper-v
Check Requirements
Windows 10 Enterprise, Professional, or Education
64-bit Processor with Second Level Address Translation (SLAT).
CPU support for VM Monitor Mode Extension (VT-c on Intel CPU's).
Minimum of 4 GB memory.
The Hyper-V role cannot be installed on Windows 10 Home.
You can now install Docker Desktop on Windows Home machines using the WSL 2 backend. Docker Desktop on Windows Home is a full version of Docker Desktop for Linux container development.
https://docs.docker.com/docker-for-windows/install-windows-home/
Install Windows 10, version 2004 or higher.
Enable the WSL 2 feature on Windows. For detailed instructions, refer to the Microsoft documentation.
https://learn.microsoft.com/en-us/windows/wsl/install-win10
The following hardware prerequisites are required to successfully run WSL 2 on Windows 10 Home:
64 bit processor with Second Level Address Translation (SLAT)
4GB system RAM
BIOS-level hardware virtualization support must be enabled in the BIOS settings. For more information, see Virtualization.
https://docs.docker.com/docker-for-windows/troubleshoot/#virtualization-must-be-enabled
Download and install the Linux kernel update package.
https://learn.microsoft.com/en-us/windows/wsl/wsl2-kernel