2015-06-08 03:07:20 +00:00
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<!--[metadata]>
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+++
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title = "Installation on Mac OS X"
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description = "Instructions for installing Docker on OS X using boot2docker."
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keywords = ["Docker, Docker documentation, requirements, boot2docker, VirtualBox, SSH, Linux, OSX, OS X, Mac"]
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[menu.main]
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parent = "smn_engine"
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+++
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<![end-metadata]-->
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2014-04-16 00:53:12 +00:00
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2015-04-29 19:51:57 +00:00
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# Mac OS X
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2014-04-18 20:21:55 +00:00
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2015-07-12 14:09:14 +00:00
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> **Note**: This release of Docker deprecates the Boot2Docker command line in
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> favor of Docker Machine. Use the Docker Toolbox to install Docker Machine as
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> well as the other Docker tools.
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2015-03-22 01:20:25 +00:00
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2015-07-12 14:09:14 +00:00
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You install Docker using Docker Toolbox. Docker Toolbox includes the following Docker tools:
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2015-05-19 05:10:06 +00:00
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2015-07-12 14:09:14 +00:00
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* Docker Machine for running the `docker-machine` binary
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* Docker Engine for running the `docker` binary
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* Docker Compose for running the `docker-compose` binary
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* Kitematic, the Docker GUI
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* a shell preconfigured for a Docker command-line environment
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2015-09-11 17:06:54 +00:00
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* Oracle VM VirtualBox
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2015-03-22 01:20:25 +00:00
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2015-02-16 21:24:13 +00:00
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Because the Docker daemon uses Linux-specific kernel features, you can't run
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2015-07-12 14:09:14 +00:00
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Docker natively in OS X. Instead, you must use `docker-machine` to create and
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attach to a virtual machine (VM). This machine is a Linux VM that hosts Docker
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for you on your Mac.
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2014-04-16 00:53:12 +00:00
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2015-02-17 18:55:19 +00:00
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**Requirements**
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2015-07-12 14:09:14 +00:00
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Your Mac must be running OS X 10.8 "Mountain Lion" or newer to install the
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Docker Toolbox.
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2014-05-05 12:52:12 +00:00
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2015-03-22 01:20:25 +00:00
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### Learn the key concepts before installing
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2015-03-17 23:59:59 +00:00
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2015-07-12 14:09:14 +00:00
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In a Docker installation on Linux, your physical machine is both the localhost
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and the Docker host. In networking, localhost means your computer. The Docker
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host is the computer on which the containers run.
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2015-02-17 18:55:19 +00:00
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On a typical Linux installation, the Docker client, the Docker daemon, and any
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containers run directly on your localhost. This means you can address ports on a
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2015-02-17 23:59:29 +00:00
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Docker container using standard localhost addressing such as `localhost:8000` or
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2015-02-17 18:55:19 +00:00
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`0.0.0.0:8376`.
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2014-06-08 20:11:50 +00:00
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2015-10-09 23:50:41 +00:00
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![Linux Architecture Diagram](images/linux_docker_host.svg)
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2014-05-05 12:52:12 +00:00
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2015-07-12 14:09:14 +00:00
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In an OS X installation, the `docker` daemon is running inside a Linux VM called
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2015-08-10 20:29:08 +00:00
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`default`. The `default` is a lightweight Linux VM made specifically to run
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2015-07-12 14:09:14 +00:00
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the Docker daemon on Mac OS X. The VM runs completely from RAM, is a small ~24MB
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download, and boots in approximately 5s.
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2014-06-08 22:53:20 +00:00
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2015-10-09 23:50:41 +00:00
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![OSX Architecture Diagram](images/mac_docker_host.svg)
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2014-06-08 22:53:20 +00:00
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2015-07-12 14:09:14 +00:00
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In OS X, the Docker host address is the address of the Linux VM. When you start
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the VM with `docker-machine` it is assigned an IP address. When you start a
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container, the ports on a container map to ports on the VM. To see this in
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2015-02-17 18:55:19 +00:00
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practice, work through the exercises on this page.
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2014-06-08 22:53:20 +00:00
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2014-05-05 12:52:12 +00:00
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2015-04-29 19:51:57 +00:00
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### Installation
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2015-03-17 23:59:59 +00:00
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2015-07-12 14:09:14 +00:00
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If you have VirtualBox running, you must shut it down before running the
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2015-09-11 17:06:54 +00:00
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installer.
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2014-07-21 20:53:58 +00:00
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2015-07-12 14:09:14 +00:00
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1. Go to the [Docker Toolbox](https://www.docker.com/toolbox) page.
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2014-04-16 00:53:12 +00:00
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2015-07-12 14:09:14 +00:00
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2. Click the installer link to download.
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2015-03-17 23:59:59 +00:00
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2015-07-12 14:09:14 +00:00
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3. Install Docker Toolbox by double-clicking the package or by right-clicking
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and choosing "Open" from the pop-up menu.
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2014-12-29 08:19:42 +00:00
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2015-07-12 14:09:14 +00:00
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The installer launches the "Install Docker Toolbox" dialog.
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2015-09-11 17:06:54 +00:00
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2015-10-09 23:50:41 +00:00
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![Install Docker Toolbox](images/mac-welcome-page.png)
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2014-04-16 00:53:12 +00:00
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2015-07-12 14:09:14 +00:00
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4. Press "Continue" to install the toolbox.
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2014-04-16 00:53:12 +00:00
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2015-07-12 14:09:14 +00:00
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The installer presents you with options to customize the standard
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2015-09-11 17:06:54 +00:00
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installation.
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2015-10-09 23:50:41 +00:00
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![Standard install](images/mac-page-two.png)
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2015-09-11 17:06:54 +00:00
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2015-07-12 14:09:14 +00:00
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By default, the standard Docker Toolbox installation:
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2015-09-11 17:06:54 +00:00
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* installs binaries for the Docker tools in `/usr/local/bin`
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* makes these binaries available to all users
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2015-08-22 15:00:48 +00:00
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* installs VirtualBox; or updates any existing installation
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2015-09-11 17:06:54 +00:00
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2015-07-12 14:09:14 +00:00
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Change these defaults by pressing "Customize" or "Change
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2015-09-11 17:06:54 +00:00
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Install Location."
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2014-04-16 00:53:12 +00:00
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2015-07-12 14:09:14 +00:00
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5. Press "Install" to perform the standard installation.
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2014-04-16 00:53:12 +00:00
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2015-07-12 14:09:14 +00:00
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The system prompts you for your password.
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2015-09-11 17:06:54 +00:00
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2015-10-09 23:50:41 +00:00
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![Password prompt](images/mac-password-prompt.png)
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2015-09-11 17:06:54 +00:00
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2015-07-12 14:09:14 +00:00
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6. Provide your password to continue with the installation.
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2014-05-28 04:42:19 +00:00
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2015-07-12 14:09:14 +00:00
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When it completes, the installer provides you with some information you can
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use to complete some common tasks.
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2015-09-11 17:06:54 +00:00
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2015-10-09 23:50:41 +00:00
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![All finished](images/mac-page-finished.png)
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2015-09-11 17:06:54 +00:00
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2015-07-12 14:09:14 +00:00
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7. Press "Close" to exit.
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2015-04-29 19:51:57 +00:00
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2015-07-12 14:09:14 +00:00
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## Running a Docker Container
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2015-04-29 19:51:57 +00:00
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2015-07-12 14:09:14 +00:00
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To run a Docker container, you:
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2014-05-28 04:42:19 +00:00
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2015-09-11 17:06:54 +00:00
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* create a new (or start an existing) Docker virtual machine
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2015-07-12 14:09:14 +00:00
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* switch your environment to your new VM
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* use the `docker` client to create, load, and manage containers
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2015-03-17 23:59:59 +00:00
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2015-07-12 14:09:14 +00:00
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Once you create a machine, you can reuse it as often as you like. Like any
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VirtualBox VM, it maintains its configuration between uses.
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2014-05-28 04:42:19 +00:00
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2015-07-12 14:09:14 +00:00
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There are two ways to use the installed tools, from the Docker Quickstart Terminal or
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[from your shell](#from-your-shell).
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2014-05-21 21:05:19 +00:00
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2015-07-12 14:09:14 +00:00
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### From the Docker Quickstart Terminal
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2014-06-13 22:38:45 +00:00
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2015-07-12 14:09:14 +00:00
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1. Open the "Applications" folder or the "Launchpad".
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2014-05-21 21:05:19 +00:00
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2015-08-22 15:00:48 +00:00
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2. Find the Docker Quickstart Terminal and double-click to launch it.
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2014-05-28 04:42:19 +00:00
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2015-07-12 14:09:14 +00:00
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The application:
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2015-02-16 21:24:13 +00:00
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2015-07-12 14:09:14 +00:00
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* opens a terminal window
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2015-08-22 15:00:48 +00:00
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* creates a `default` VM if it doesn't exists, and starts the VM after
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2015-07-12 14:09:14 +00:00
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* points the terminal environment to this VM
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2015-02-16 21:24:13 +00:00
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2015-07-12 14:09:14 +00:00
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Once the launch completes, the Docker Quickstart Terminal reports:
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2015-09-11 17:06:54 +00:00
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2015-10-09 23:50:41 +00:00
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![All finished](images/mac-success.png)
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2015-09-11 17:06:54 +00:00
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Now, you can run `docker` commands.
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2015-02-16 21:24:13 +00:00
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2015-07-12 14:09:14 +00:00
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3. Verify your setup succeeded by running the `hello-world` container.
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2015-02-16 21:24:13 +00:00
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2015-07-12 14:09:14 +00:00
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$ docker run hello-world
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Unable to find image 'hello-world:latest' locally
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511136ea3c5a: Pull complete
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31cbccb51277: Pull complete
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e45a5af57b00: Pull complete
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hello-world:latest: The image you are pulling has been verified.
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Important: image verification is a tech preview feature and should not be
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relied on to provide security.
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Status: Downloaded newer image for hello-world:latest
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Hello from Docker.
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This message shows that your installation appears to be working correctly.
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To generate this message, Docker took the following steps:
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1. The Docker client contacted the Docker daemon.
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2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
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(Assuming it was not already locally available.)
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3. The Docker daemon created a new container from that image which runs the
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executable that produces the output you are currently reading.
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4. The Docker daemon streamed that output to the Docker client, which sent it
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to your terminal.
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To try something more ambitious, you can run an Ubuntu container with:
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$ docker run -it ubuntu bash
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For more examples and ideas, visit:
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http://docs.docker.com/userguide/
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A more typical way to interact with the Docker tools is from your regular shell command line.
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### From your shell
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This section assumes you are running a Bash shell. You may be running a
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different shell such as C Shell but the commands are the same.
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1. Create a new Docker VM.
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2015-08-10 20:29:08 +00:00
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$ docker-machine create --driver virtualbox default
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2015-07-12 14:09:14 +00:00
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Creating VirtualBox VM...
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Creating SSH key...
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Starting VirtualBox VM...
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Starting VM...
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2015-08-10 20:29:08 +00:00
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To see how to connect Docker to this machine, run: docker-machine env default
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2015-07-12 14:09:14 +00:00
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2015-08-22 15:00:48 +00:00
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This creates a new `default` VM in VirtualBox.
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2015-09-11 17:06:54 +00:00
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2015-07-12 14:09:14 +00:00
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The command also creates a machine configuration in the
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2015-08-10 20:29:08 +00:00
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`~/.docker/machine/machines/default` directory. You only need to run the
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2015-07-12 14:09:14 +00:00
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`create` command once. Then, you can use `docker-machine` to start, stop,
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query, and otherwise manage the VM from the command line.
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2015-09-11 17:06:54 +00:00
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2015-07-12 14:09:14 +00:00
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2. List your available machines.
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$ docker-machine ls
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NAME ACTIVE DRIVER STATE URL SWARM
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2015-09-11 17:06:54 +00:00
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default * virtualbox Running tcp://192.168.99.101:2376
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2015-07-12 14:09:14 +00:00
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If you have previously installed the deprecated Boot2Docker application or
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run the Docker Quickstart Terminal, you may have a `dev` VM as well. When you
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2015-08-22 15:00:48 +00:00
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created `default` VM, the `docker-machine` command provided instructions
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2015-07-12 14:09:14 +00:00
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for learning how to connect the VM.
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3. Get the environment commands for your new VM.
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2015-08-10 20:29:08 +00:00
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$ docker-machine env default
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2015-07-12 14:09:14 +00:00
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export DOCKER_TLS_VERIFY="1"
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export DOCKER_HOST="tcp://192.168.99.101:2376"
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2015-08-10 20:29:08 +00:00
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export DOCKER_CERT_PATH="/Users/mary/.docker/machine/machines/default"
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export DOCKER_MACHINE_NAME="default"
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2015-09-11 17:06:54 +00:00
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# Run this command to configure your shell:
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2015-08-10 20:29:08 +00:00
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# eval "$(docker-machine env default)"
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2015-09-11 17:06:54 +00:00
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2015-08-10 20:29:08 +00:00
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4. Connect your shell to the `default` machine.
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2015-07-12 14:09:14 +00:00
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2015-08-10 20:29:08 +00:00
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$ eval "$(docker-machine env default)"
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2015-02-16 21:24:13 +00:00
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5. Run the `hello-world` container to verify your setup.
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2015-04-29 19:51:57 +00:00
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$ docker run hello-world
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2015-02-16 21:24:13 +00:00
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2015-07-12 14:09:14 +00:00
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## Learn about your Toolbox installation
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Toolbox installs the Docker Engine binary, the Docker binary on your system. When you
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2015-08-22 15:00:48 +00:00
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use the Docker Quickstart Terminal or create a `default` VM manually, Docker
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2015-08-10 20:29:08 +00:00
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Machine updates the `~/.docker/machine/machines/default` folder to your
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2015-07-12 14:09:14 +00:00
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system. This folder contains the configuration for the VM.
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2015-08-22 15:00:48 +00:00
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You can create multiple VMs on your system with Docker Machine. Therefore, you
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may end up with multiple VM folders if you have more than one VM. To remove a
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VM, use the `docker-machine rm <machine-name>` command.
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2015-08-10 20:29:08 +00:00
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## Migrate from Boot2Docker
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If you were using Boot2Docker previously, you have a pre-existing Docker
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`boot2docker-vm` VM on your local system. To allow Docker Machine to manage
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this older VM, you can migrate it.
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1. Open a terminal or the Docker CLI on your system.
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2. Type the following command.
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$ docker-machine create -d virtualbox --virtualbox-import-boot2docker-vm boot2docker-vm docker-vm
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2015-09-11 17:06:54 +00:00
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3. Use the `docker-machine` command to interact with the migrated VM.
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2015-07-12 14:09:14 +00:00
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The `docker-machine` subcommands are slightly different than the `boot2docker`
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subcommands. The table below lists the equivalent `docker-machine` subcommand
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and what it does:
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| `boot2docker` | `docker-machine` | `docker-machine` description |
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|----------------|------------------|----------------------------------------------------------|
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| init | create | Creates a new docker host. |
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| up | start | Starts a stopped machine. |
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| ssh | ssh | Runs a command or interactive ssh session on the machine.|
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| save | - | Not applicable. |
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| down | stop | Stops a running machine. |
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| poweroff | stop | Stops a running machine. |
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| reset | restart | Restarts a running machine. |
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| config | inspect | Prints machine configuration details. |
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| status | ls | Lists all machines and their status. |
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| info | inspect | Displays a machine's details. |
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| ip | ip | Displays the machine's ip address. |
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| shellinit | env | Displays shell commands needed to configure your shell to interact with a machine |
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| delete | rm | Removes a machine. |
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| download | - | Not applicable. |
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| upgrade | upgrade | Upgrades a machine's Docker client to the latest stable release. |
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## Example of Docker on Mac OS X
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Work through this section to try some practical container tasks on a VM. At this
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point, you should have a VM running and be connected to it through your shell.
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To verify this, run the following commands:
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$ docker-machine ls
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NAME ACTIVE DRIVER STATE URL SWARM
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default * virtualbox Running tcp://192.168.99.100:2376
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The `ACTIVE` machine, in this case `default`, is the one your environment is pointing to.
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### Access container ports
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1. Start an NGINX container on the DOCKER_HOST.
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$ docker run -d -P --name web nginx
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Normally, the `docker run` commands starts a container, runs it, and then
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exits. The `-d` flag keeps the container running in the background
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after the `docker run` command completes. The `-P` flag publishes exposed ports from the
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container to your local host; this lets you access them from your Mac.
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2. Display your running container with `docker ps` command
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CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
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5fb65ff765e9 nginx:latest "nginx -g 'daemon of 3 minutes ago Up 3 minutes 0.0.0.0:49156->443/tcp, 0.0.0.0:49157->80/tcp web
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At this point, you can see `nginx` is running as a daemon.
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3. View just the container's ports.
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2015-04-29 19:51:57 +00:00
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$ docker port web
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443/tcp -> 0.0.0.0:49156
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80/tcp -> 0.0.0.0:49157
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This tells you that the `web` container's port `80` is mapped to port
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`49157` on your Docker host.
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4. Enter the `http://localhost:49157` address (`localhost` is `0.0.0.0`) in your browser:
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![Bad Address](images/bad_host.png)
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This didn't work. The reason it doesn't work is your `DOCKER_HOST` address is
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not the localhost address (0.0.0.0) but is instead the address of the
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your Docker VM.
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5. Get the address of the `default` VM.
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$ docker-machine ip default
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192.168.59.103
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6. Enter the `http://192.168.59.103:49157` address in your browser:
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![Correct Addressing](images/good_host.png)
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Success!
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2015-02-18 00:10:32 +00:00
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7. To stop and then remove your running `nginx` container, do the following:
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$ docker stop web
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$ docker rm web
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### Mount a volume on the container
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When you start a container it automatically shares your `/Users/username` directory
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with the VM. You can use this share point to mount directories onto your container.
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The next exercise demonstrates how to do this.
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1. Change to your user `$HOME` directory.
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$ cd $HOME
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2. Make a new `site` directory.
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$ mkdir site
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3. Change into the `site` directory.
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$ cd site
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4. Create a new `index.html` file.
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$ echo "my new site" > index.html
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5. Start a new `nginx` container and replace the `html` folder with your `site` directory.
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2015-08-04 01:21:54 +00:00
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$ docker run -d -P -v $HOME/site:/usr/share/nginx/html \
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--name mysite nginx
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6. Get the `mysite` container's port.
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$ docker port mysite
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80/tcp -> 0.0.0.0:49166
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443/tcp -> 0.0.0.0:49165
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7. Open the site in a browser:
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![My site page](images/newsite_view.png)
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8. Try adding a page to your `$HOME/site` in real time.
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$ echo "This is cool" > cool.html
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9. Open the new page in the browser.
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![Cool page](images/cool_view.png)
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10. Stop and then remove your running `mysite` container.
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$ docker stop mysite
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$ docker rm mysite
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2015-07-12 14:09:14 +00:00
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## Upgrade Docker Toolbox
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To upgrade Docker Toolbox, download an re-run [the Docker Toolbox
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installer](https://docker.com/toolbox/).
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2015-09-11 17:06:54 +00:00
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## Uninstall Docker Toolbox
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To uninstall, do the following:
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1. List your machines.
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$ docker-machine ls
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NAME ACTIVE DRIVER STATE URL SWARM
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dev * virtualbox Running tcp://192.168.99.100:2376
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my-docker-machine virtualbox Stopped
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default virtualbox Stopped
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2. Remove each machine.
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2015-07-12 14:09:14 +00:00
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$ docker-machine rm dev
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Successfully removed dev
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Removing a machine deletes its VM from VirtualBox and from the
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`~/.docker/machine/machines` directory.
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3. Remove the Docker Quickstart Terminal and Kitematic from your "Applications" folder.
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4. Remove the `docker`, `docker-compose`, and `docker-machine` commands from the `/usr/local/bin` folder.
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2015-07-12 14:09:14 +00:00
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$ rm /usr/local/bin/docker
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5. Delete the `~/.docker` folder from your system.
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## Learning more
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Use `docker-machine help` to list the full command line reference for Docker Machine. For more
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information about using SSH or SCP to access a VM, see [the Docker Machine
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documentation](https://docs.docker.com/machine/).
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You can continue with the [Docker User Guide](../userguide). If you are
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interested in using the Kitematic GUI, see the [Kitematic user
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guide](https://docs.docker.com/kitematic/userguide/).
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