Machine management for a container-centric world
Go Shell Makefile
Latest commit c604d46 Jun 6, 2017 @nathanleclaire nathanleclaire committed on GitHub Merge pull request #4124 from nathanleclaire/rm_nathanleclaire_mainta…

Remove @nathanleclaire as maintainer
Failed to load latest commit information.
Godeps Update Mar 31, 2017
cmd Align machine storage path flag name May 4, 2016
commands Add delta option to the scp command, using rsync Mar 10, 2017
contrib/completion Merge pull request #4087 from albers/completion-ls--filters May 12, 2017
docs updated README per vnext branch plan Oct 5, 2016
drivers Ignore more errors from EC2 API Jun 5, 2017
experimental Markdown linting Dec 8, 2015
its Make virtualbox default driver Feb 21, 2017
libmachine Merge pull request #4082 from SvenDowideit/allow-rancheros-to-select-… May 31, 2017
mk Use PKG_NAME in mk so it can be reused in drivers May 5, 2017
script Update release version regex Feb 27, 2017
test Fix #2029 - local drivers dont run with engine-install-url Jan 28, 2016
vendor Update Mar 31, 2017
version Switch version in version.go to 'dev' Jun 2, 2017
.dockerignore Rehauled build system and integration testing Sep 18, 2015
.gitignore Move towards using external binaries / RPC plugins Oct 16, 2015
.godir Initial commit Dec 4, 2014
.travis.yml Support building a Linux ARM64/aarch64 binary Jan 21, 2017 Update changelog and coded version for 0.10.0 Feb 28, 2017 delete the link and the sentence since the docs have been moved Jan 7, 2017
Dockerfile Bump Go version Jun 6, 2017
LICENSE Initial commit Dec 4, 2014
MAINTAINERS Remove @nathanleclaire as maintainer Jun 6, 2017
Makefile fix(Makefile): Prevent makefile from defaulting to using containers i… Dec 22, 2015 Support building a Linux ARM64/aarch64 binary Jan 21, 2017 readme: fix available driver plugins link Oct 19, 2016 Lint all Markdown documents Nov 27, 2015
appveyor.yml Simplify appveyor config Mar 22, 2016
circle.yml Update the Go version used in circle.yml to 1.7. Mar 23, 2017
doc.go Lint, step 1 Nov 4, 2015

Docker Machine

Machine lets you create Docker hosts on your computer, on cloud providers, and inside your own data center. It creates servers, installs Docker on them, then configures the Docker client to talk to them.

It works a bit like this:

$ docker-machine create -d virtualbox default
Running pre-create checks...
Creating machine...
(default) Creating VirtualBox VM...
(default) Creating SSH key...
(default) Starting VM...
Waiting for machine to be running, this may take a few minutes...
Machine is running, waiting for SSH to be available...
Detecting operating system of created instance...
Detecting the provisioner...
Provisioning with boot2docker...
Copying certs to the local machine directory...
Copying certs to the remote machine...
Setting Docker configuration on the remote daemon...
Checking connection to Docker...
Docker is up and running!
To see how to connect Docker to this machine, run: docker-machine env default

$ docker-machine ls
NAME      ACTIVE   DRIVER       STATE     URL                         SWARM   DOCKER   ERRORS
default   -        virtualbox   Running   tcp://           v1.9.1

$ eval "$(docker-machine env default)"

$ docker run busybox echo hello world
Unable to find image 'busybox:latest' locally
511136ea3c5a: Pull complete
df7546f9f060: Pull complete
ea13149945cb: Pull complete
4986bf8c1536: Pull complete
hello world

In addition to local VMs, you can create and manage cloud servers:

$ docker-machine create -d digitalocean --digitalocean-access-token=secret staging
Creating SSH key...
Creating Digital Ocean droplet...
To see how to connect Docker to this machine, run: docker-machine env staging

$ docker-machine ls
NAME      ACTIVE   DRIVER         STATE     URL                         SWARM   DOCKER   ERRORS
default   -        virtualbox     Running   tcp://           v1.9.1
staging   -        digitalocean   Running   tcp://             v1.9.1

Installation and documentation

Full documentation is available here.


Want to hack on Machine? Please start with the Contributing Guide.

Driver Plugins

In addition to the core driver plugins bundled alongside Docker Machine, users can make and distribute their own plugin for any virtualization technology or cloud provider. To browse the list of known Docker Machine plugins, please see this document in our docs repo.


Docker Machine tries to do the right thing in a variety of scenarios but sometimes things do not go according to plan. Here is a quick troubleshooting guide which may help you to resolve of the issues you may be seeing.

Note that some of the suggested solutions are only available on the Docker Machine master branch. If you need them, consider compiling Docker Machine from source.

docker-machine hangs

A common issue with Docker Machine is that it will hang when attempting to start up the virtual machine. Since starting the machine is part of the create process, create is often where these types of errors show up.

A hang could be due to a variety of factors, but the most common suspect is networking. Consider the following:

  • Are you using a VPN? If so, try disconnecting and see if creation will succeed without the VPN. Some VPN software aggressively controls routes and you may need to manually add the route.
  • Are you connected to a proxy server, corporate or otherwise? If so, take a look at the --no-proxy flag for env and at setting environment variables for the created Docker Engine.
  • Are there a lot of host-only interfaces listed by the command VBoxManage list hostonlyifs? If so, this has sometimes been known to cause bugs. Consider removing the ones you are not using (VBoxManage hostonlyif remove name) and trying machine creation again.

We are keenly aware of this as an issue and working towards a set of solutions which is robust for all users, so please give us feedback and/or report issues, workarounds, and desired workflows as you discover them.

Machine creation errors out before finishing

If you see messages such as "exit status 1" creating machines with VirtualBox, this frequently indicates that there is an issue with VirtualBox itself. Please file an issue and include a link to a Github Gist with the output of the VirtualBox log (usually located at $HOME/.docker/machine/machines/machinename/machinename/Logs/VBox.log), as well as the output of running the Docker Machine command which is failing with the global --debug flag enabled. This will help us to track down which versions of VirtualBox are failing where, and under which conditions.

If you see messages such as "exit status 255", this frequently indicates there has been an issue with SSH. Please investigate your SSH configuration if you have one, and/or file an issue.

"You may be getting rate limited by Github" error message

In order to create or upgrade virtual machines running Docker, Docker Machine will check the Github API for the latest release of the boot2docker operating system. The Github API allows for a small number of unauthenticated requests from a given client, but if you share an IP address with many other users (e.g. in an office), you may get rate limited by their API, and Docker Machine will error out with messages indicating this.

In order to work around this issue, you can generate a token and pass it to Docker Machine using the global --github-api-token flag like so:

$ docker-machine --github-api-token=token create -d virtualbox newbox

This should eliminate any issues you've been experiencing with rate limiting.