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114 lines
4.2 KiB
Markdown
114 lines
4.2 KiB
Markdown
page_title: Installation on Mac OS X
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page_description: Instructions for installing Docker on OS X using boot2docker.
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page_keywords: Docker, Docker documentation, requirements, boot2docker, VirtualBox, SSH, Linux, OSX, OS X, Mac
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# Installing Docker on Mac OS X
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> **Note:**
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> Docker is supported on Mac OS X 10.6 "Snow Leopard" or newer.
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Because the Docker Engine uses Linux-specific kernel features, you'll need to use a
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lightweight virtual machine (VM) to run it on OS X. You use the OS X Docker client to
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control the virtualized Docker Engine to build, run, and manage Docker containers.
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To make this process easier, we've built a helper application called
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[Boot2Docker](https://github.com/boot2docker/boot2docker) that installs a
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virtual machine (using VirtualBox) that's all set up to run the Docker daemon.
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## Demonstration
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<iframe width="640" height="360" src="//www.youtube.com/embed/wQsrKX4588U?rel=0" frameborder="0" allowfullscreen></iframe>
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## Installation
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1. Download the latest release of the [Docker for OS X Installer](
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https://github.com/boot2docker/osx-installer/releases) (Look for the green
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Boot2Docker-x.x.x.pkg button near the bottom of the page.)
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2. Run the installer by double-clicking the downloaded package, which will install a
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VirtualBox VM, Docker itself, and the Boot2Docker management tool.
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3. Locate the `Boot2Docker` app in your `Applications` folder and run it.
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Or, you can initialize Boot2Docker from the command line by running:
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$ boot2docker init
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$ boot2docker start
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$ export DOCKER_HOST=tcp://$(boot2docker ip 2>/dev/null):2375
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A terminal window will open and you'll see the virtual machine starting up.
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Once you have an initialized virtual machine, you can control it with `boot2docker stop`
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and `boot2docker start`.
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> **Note:**
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> If you see a message in the terminal that looks something like this:
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>
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> `To connect the Docker client to the Docker daemon, please set: export
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DOCKER_HOST=tcp://192.168.59.103:2375`
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>
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you can safely set the evironment variable as instructed.
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View the
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[Boot2Docker ReadMe](https://github.com/boot2docker/boot2docker/blob/master/README.md)
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for more information.
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## Upgrading
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1. Download the latest release of the [Docker for OS X Installer](
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https://github.com/boot2docker/osx-installer/releases)
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2. If Boot2Docker is currently running, stop it with `boot2docker stop`. Then, run
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the installer package, which will update Docker and the Boot2Docker management tool.
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3. To complete the upgrade, you also need to update your existing virtual machine. Open a
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terminal window and run:
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$ boot2docker stop
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$ boot2docker download
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$ boot2docker start
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This will download an .iso image containing a fresh VM and start it up. Your upgrade is
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complete. You can test it by following the directions below.
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## Running Docker
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From your terminal, you can test that Docker is running with our small `hello-world`
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example image:
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Start the vm (`boot2docker start`) and then run:
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$ docker run hello-world
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This should download the `hello-world` image, which then creates a small
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container with an executable that prints a brief `Hello from Docker.` message.
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## Container port redirection
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The latest version of `boot2docker` sets up a host-only network adaptor which provides
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access to the container's ports.
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If you run a container with an exposed port,
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$ docker run --rm -i -t -p 80:80 nginx
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then you should be able to access that Nginx server using the IP address reported by:
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$ boot2docker ip
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Typically, it is 192.168.59.103:2375, but VirtualBox's DHCP implementation might change
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this address in the future.
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# Further details
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If you are curious, the username for the boot2docker default user is `docker` and the
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password is `tcuser`.
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The Boot2Docker management tool provides several additional commands for working with the
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VM and Docker:
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$ ./boot2docker
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Usage: ./boot2docker [<options>]
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{help|init|up|ssh|save|down|poweroff|reset|restart|config|status|info|ip|delete|download|version} [<args>]
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Continue with the [User Guide](/userguide/).
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For further information or to report issues, please visit the [Boot2Docker site](http://boot2docker.io).
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