ip Get the IP address of one or more machines. $ docker-machine ip dev 192.168.99.104 $ docker-machine ip dev dev2 192.168.99.104 192.168.99.105

Amazon Web Services (AWS) EC2 example Follow along with this example to create a Dockerized Amazon Web Services (AWS) EC2 instance. Step 1. Sign up for AWS and configure credentials If you are not already an AWS user, sign up for AWS to create an account and get root access to EC2 cloud computers. If you have an Amazon account, you can use it as your root user account. Create an IAM (Identity and Access Management) administrator user, an admin group, and a key pair associated with a region

scp Copy files from your local host to a machine, from machine to machine, or from a machine to your local host using scp. The notation is machinename:/path/to/files for the arguments; in the host machine’s case, you don’t have to specify the name, just the path. Consider the following example: $ cat foo.txt cat: foo.txt: No such file or directory $ docker-machine ssh dev pwd /home/docker $ docker-machine ssh dev 'echo A file created remotely! >foo.txt' $ docker-machine scp dev:/home/docker/

Provision a Swarm cluster with Docker Machine You can use Docker Machine to provision a Docker Swarm cluster. Machine is the Docker provisioning tool. Machine provisions the hosts, installs Docker Engine on them, and then configures the Docker CLI client. With Machine’s Swarm options, you can also quickly configure a Swarm cluster as part of this provisioning. This page explains the commands you need to provision a basic Swarm cluster on a local Mac or Windows computer using Machine. Once you u

commit Usage: docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]] Create a new image from a container's changes -a, --author="" Author (e.g., "John Hannibal Smith <hannibal@a-team.com>") -c, --change=[] Apply specified Dockerfile instructions while committing the image --help Print usage -m, --message="" Commit message -p, --pause=true Pause container during commit It can be useful to commit a container’s file changes or settings into a new image.

pause Usage: docker pause [OPTIONS] CONTAINER [CONTAINER...] Pause all processes within a container --help Print usage The docker pause command uses the cgroups freezer to suspend all processes in a container. Traditionally, when suspending a process the SIGSTOP signal is used, which is observable by the process being suspended. With the cgroups freezer the process is unaware, and unable to capture, that it is being suspended, and subsequently resumed. See the cgroups freezer docu

Installation from binaries This instruction set is meant for hackers who want to try out Docker on a variety of environments. Before following these directions, you should really check if a packaged version of Docker is already available for your distribution. We have packages for many distributions, and more keep showing up all the time! Check runtime dependencies To run properly, docker needs the following software to be installed at runtime: iptables version 1.4 or later Git version 1.7 or l

Install Docker Machine On OS X and Windows, Machine is installed along with other Docker products when you install the Docker Toolbox. For details on installing Docker Toolbox, see the Mac OS X installation instructions or Windows installation instructions. If you want only Docker Machine, you can install the Machine binaries directly by following the instructions in the next section. You can find the latest versions of the binaries are on the docker/machine release page on GitHub. Installing

info Usage: docker info [OPTIONS] Display system-wide information --help Print usage For example: $ docker -D info Containers: 14 Running: 3 Paused: 1 Stopped: 10 Images: 52 Server Version: 1.9.0 Storage Driver: aufs Root Dir: /var/lib/docker/aufs Backing Filesystem: extfs Dirs: 545 Dirperm1 Supported: true Execution Driver: native-0.2 Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge null host Kernel Version: 3.19.0-22-generic O

Image management The Docker Engine provides a client which you can use to create images on the command line or through a build process. You can run these images in a container or publish them for others to use. Storing the images you create, searching for images you might want, or publishing images others might use are all elements of image management. This section provides an overview of the major features and products Docker provides for image management. Docker Hub The Docker Hub is responsi