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Docker
Docker is a tool for creating containers. A container is lightweight, stand-alone package that sets up a complete run-time environment: OS, packages, libraries, and code.
In this repository, we defined a Docker image for each MPC framework. An image defines the environment that we'd like to run our software in. In this case, we download the MPC framework, install all necessary libraries, compile the framework (if necessary) and move our sample code to an appropriate directory. We include a separate README for each repository explaining how to run the examples.
For each framework, you'll find a Dockerfile. This defines everything that must be done to set up a suitable development environment. For example, it may define an operating system and a home directory, install some packages with apt-get, copy our source files, and run an install script we've defined.
A Docker image is defined by a Dockerfile and only needs to be created once. You can create it by running the Docker build command in the same directory as a Dockerfile:
$ docker build -t image1 .
The -t option lets you tag an image with a useful nickname. You can see all the images defined on your machine by running
$ docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
image1 <none> 485973be2fed 1 day ago 123 mb
If you don't tag an image, you can use its ID to create a container.
A container is an instance of an image. Once you've defined an image using the build command, you can create any number of containers using that image. You create a container using the run command:
$ docker run -it --rm image1
root@<image-id>:~#
In this repository, we always use the -it option, which makes the container interactive. This provides access to a terminal from which the framework examples can be run.
The --rm tag deletes the container after it is closed. If you'd like to make changes to files within the container, they will not persist after the container is removed. You can remove this option to keep your container running for multiple sessions.
Finally, image1 is the tag of the image we're running. As mentioned, you can also use an image ID.
In this repository, the run command will open up a terminal in the root directory. See individual READMEs for further instructions.
Docker is available for many popular operating systems.
On many *nix operating systems, you can install Docker via command line:
$ sudo apt-get install docker.io
The Docker Community Edition is available for a variety of operating systems, including Windows 10, MacOS, Ubuntu, Debian, CentOS, and Fedora. The website includes OS-specific download instructions.
If your Mac or Windows version is particularly old, you can try Docker Toolbox instead.
On some Ubuntu and other *nix OSes, you may need to run the docker build and docker run commands with sudo.