Docker Download Mac Os

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This project (the boot2docker OS X Installer) is officially deprecated in favor of the new Docker Toolbox. Docker Desktop stores Linux containers and images in a single, large “disk image” file in the Mac filesystem. This is different from Docker on Linux, which usually stores containers and images in the /var/lib/docker directory. On my Mac with MacOS 10.14.6 Mojave, running Docker version 19.03.8 that single large file can be found at. The Docker Desktop installation includes Docker Engine, Docker CLI client, Docker Compose, Notary, Kubernetes, and Credential Helper. Install and run Docker Desktop on Mac Double-click Docker.dmg to open the installer, then drag the Docker icon to the Applications folder.

Docker for Mac offers a Mac native application that installs in /Applications. It creates symlinks (symbolic links) in /usr/local/bin for docker and docker-compose to the Mac versions of the commands in the application bundle.

The Docker for Mac bundle installs:

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  1. Docker Engine
  2. Docker CLI Client
  3. Docker Compose
  4. Docker Machine
Docker

Are you already running Docker Toolbox and/or Docker Machine?

If so, you need to do a little more work. First, check whether Docker Toolbox environment variables are set:

If you don’t get output, you can go ahead and use Docker for Mac. However, if you do get output (like in the example), you need to unset the Docker variables so the client can talk to the Docker for Mac Engine. Run:

If you use Bash, you can use unset ${!DOCKER_*} to unset all of the Docker environment variables (this does not work in other shells, like zsh or csh).

When you run env | grep DOCKER now, you should see no output.

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Running Docker Toolbox and Docker for Mac on the same host

You can run both Docker Toolbox and Docker for Mac on the same system, but not at the same time.

When you use Docker for Mac, you need to unset all of your environment variables, using one of the methods above. When you want to use a VirtualBox VM you have set up with docker-machine, simply run eval $(docker-machine env default) (assuming you want to target the machine “default”).

Docker Machine

Docker for Mac does not affect previous machines created via Docker Machine, The installation gives you the option to copy containers and images from your local default machine if you have one.

Requirements

You must have a Mac:

  1. 2010 or newer, with Intel’s hardware Memory Management Unit (MMU).
  2. OS X 10.10.3 Yosemite or newer (or macOS).
  3. At least 4 GB of RAM.
  4. You must not have a VirtualBox installation earlier than version 4.3.30 on your system. If you do, you’ll need to uninstall it.

Before You Install

Take a few minutes to understand some key concepts before you install Docker.

On an “out-of-the-box” Linux installation, the Docker client, daemon, and all containers run directly on localhost, meaning you can access ports on a Docker container using localhost addressing; something like localhost:8080 or 0.0.0.0:8376.

On macOS, Docker’s daemon runs inside a Linux VM. The macOS Docker client talks to the Docker host VM, and your containers run on the host. You cannot use localhost in this setting; instead, the container’s ports map to the VM’s ports. If your VM has the IP address 10.0.0.5, access the ports like 10.0.0.5:8000 or 10.0.0.5:8376.

Installation

  1. Download Docker.
  2. Double-click the DMG file, and drag-and-drop Docker into your Applications folder.
  3. You need to authorize the installation with your system password.
  4. Double-click Docker.app to start Docker.
  5. The whale in your status bar indicates Docker is running and accessible.
  6. Docker presents some information on completing common tasks and links to the documentation.
  7. You can access settings and other options from the whale in the status bar. a. Select About Docker to make sure you have the latest version.

That’s it!

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Verification

Check versions of Docker Engine, Compose, and Machine.

Run a Dockerized web server to make sure everything works:

Docker Install

If you do not have the image locally, Docker pulls it from Docker Hub (more on this later). Visit http://localhost to bring up your new homepage; you should see:

Welcome to nginx!

If you see this page, the nginx web server is successfully installed and working. Further configuration is required.

For online documentation and support please refer to nginx.org.Commercial support is available at nginx.com.

Thank you for using nginx.

Common Pitfalls

Operating System

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Unfortunately, if you do not run “Mountain Lion” or later, you cannot run Docker for Mac. You can upgrade your OS to the most recent viable version, provided your system supports it.

Docker Download Mac Os

Shell Scripts

If you use a shell script to set the Docker environment variables every time you open a command window (Terminal), you need to unset the variables every time you use Docker for Mac (alternately, you can write a shell script to follow behind and unset the variables).

Multiple Docker Versions

Docker for Mac replaces docker and docker-compose with its own versions; if you already have Docker Toolbox on your Mac, Docker for Mac still replaces the binaries. You want the Docker client and Engine to match versions; mismatches can cause problems where the client and host cannot communicate. If you already have Docker Toolbox, and then you install Docker for Mac, you may get a newer version of the Docker client. Running docker version in a command shell displays the version of the client and server you have on your system.

This may also happen if you use Docker Universal Control Plane (UCP).

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If you want to support both Docker Toolbox and Docker for Mac, check out the Docker Version Manager (DVM).

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Next: Install Docker on Windows 10
Requirements and things to know before installing Docker for Win 10.