This page explains how to get the software you need to build, test, and run the Moby source code for Windows and setup the required software and services:
The major build number must be at least 14393. This can be confirmed, for example, by running the following from an elevated PowerShell prompt - this sample output is from a fully up to date machine as at mid-November 2016:
PS C:\> $(gin).WindowsBuildLabEx 14393.447.amd64fre.rs1_release_inmarket.161102-0100
For example, by following the quick start guidance at https://msdn.microsoft.com/en-us/virtualization/windowscontainers/quick_start/quick_start or https://github.com/docker/labs/blob/master/windows/windows-containers/Setup.md
For Windows Server 2016 using Windows Server containers as the default option, it is recommended you have at least 1GB of memory assigned; For Windows 10 where Hyper-V Containers are employed, you should have at least 4GB of memory assigned. Note also, to run Hyper-V containers in a VM, it is necessary to configure the VM for nested virtualization.
The following steps should be run from an elevated Windows PowerShell prompt.
Note: In a default installation of containers on Windows following the quick-start guidance at https://msdn.microsoft.com/en-us/virtualization/windowscontainers/quick_start/quick_start, the
docker.execlient must run elevated to be able to connect to the daemon).
To test and run the Windows Moby engine, you need a system that supports Windows Containers:
Check out the getting started documentation for details.
To contribute to the Docker project, you need a GitHub account. A free account is fine. All the Moby project repositories are public and visible to everyone.
This guide assumes that you have basic familiarity with Git and Github terminology and usage. Refer to GitHub For Beginners: Don’t Get Scared, Get Started to get up to speed on Github.
In PowerShell, run:
Invoke-Webrequest "https://github.com/git-for-windows/git/releases/download/v2.7.2.windows.1/Git-2.7.2-64-bit.exe" -OutFile git.exe -UseBasicParsing Start-Process git.exe -ArgumentList '/VERYSILENT /SUPPRESSMSGBOXES /CLOSEAPPLICATIONS /DIR=c:\git\' -Wait setx /M PATH "$env:Path;c:\git\cmd"
You are now ready clone and build the Moby source code.
In a new (to pick up the path change) PowerShell prompt, run:
git clone https://github.com/moby/moby cd moby
This clones the main Moby repository. Check out Moby Project to learn about the other software that powers the Moby platform.
Create a builder-container with the Moby source code. You can change the source code on your system and rebuild any time:
docker build -t nativebuildimage -f .\Dockerfile.windows . docker build -t nativebuildimage -f Dockerfile.windows -m 2GB . # (if using Hyper-V containers)
To build Moby, run:
$DOCKER_GITCOMMIT=(git rev-parse --short HEAD) docker run --name binaries -e DOCKER_GITCOMMIT=$DOCKER_GITCOMMIT nativebuildimage hack\make.ps1 -Binary docker run --name binaries -e DOCKER_GITCOMMIT=$DOCKER_GITCOMMIT -m 2GB nativebuildimage hack\make.ps1 -Binary # (if using Hyper-V containers)
Copy out the resulting Windows Moby Engine binary to
dockerd.exe in the current directory:
docker cp binaries:C:\go\src\github.com\moby\moby\bundles\docker.exe docker.exe docker cp binaries:C:\go\src\github.com\moby\moby\bundles\dockerd.exe dockerd.exe
To test it, stop the system Docker daemon and start the one you just built:
Stop-Service Docker .\dockerd.exe -D
The other make targets work too, to run unit tests try:
docker run --rm docker-builder sh -c 'cd /c/go/src/github.com/moby/moby; hack/make.sh test-unit'.
docker rm binaries
It may be useful to keep this image around if you need to build multiple times. Then you can take advantage of the builder cache to have an image which has all the components required to build the binaries already installed.
docker rmi nativebuildimage
The validation tests can only run directly on the host. This is because they calculate information from the git repo, but the .git directory is not passed into the image as it is excluded via
.dockerignore. Run the following from a Windows PowerShell prompt (elevation is not required): (Note Go must be installed to run these tests)
hack\make.ps1 -DCO -PkgImports -GoFormat
To run unit tests, ensure you have created the nativebuildimage above. Then run one of the following from an (elevated) Windows PowerShell prompt:
docker run --rm nativebuildimage hack\make.ps1 -TestUnit docker run --rm -m 2GB nativebuildimage hack\make.ps1 -TestUnit # (if using Hyper-V containers)
To run unit tests and binary build, ensure you have created the nativebuildimage above. Then run one of the following from an (elevated) Windows PowerShell prompt:
docker run nativebuildimage hack\make.ps1 -All docker run -m 2GB nativebuildimage hack\make.ps1 -All # (if using Hyper-V containers)
Don't attempt to use a bind mount to pass a local directory as the bundles target directory. It does not work (golang attempts for follow a mapped folder incorrectly). Instead, use docker cp as per the example.
go.zip is not removed from the image as it is used by the Windows CI servers to ensure the host and image are running consistent versions of go.
Nanoserver support is a work in progress. Although the image will build if the
FROM statement is updated, it will not work when running autogen through
hack\make.ps1. It is suspected that the required GCC utilities (eg gcc, windres, windmc) silently quit due to the use of console hooks which are not available.
The docker integration tests do not currently run in a container on Windows, predominantly due to Windows not supporting privileged mode, so anything using a volume would fail. They (along with the rest of the docker CI suite) can be run using https://github.com/jhowardmsft/docker-w2wCIScripts/blob/master/runCI/Invoke-DockerCI.ps1.
In the next section, you'll learn how to set up and configure Git for contributing to Moby.