Sous is a tool for building, testing, and deploying applications, using Docker, Mesos, and Singularity.

If you just want to use Sous to build and deploy your code, follow the installation instructions.

For contribution guidelines, see here.

View documentation in the doc/ directory.

If you're looking to get started using Sous to manage your service within a larger organization, read on.

Sous is written in Go. Once you have Go set up on your machine, you can install it by typing:

$ go get -u -v github.com/opentable/sous

However, for normal use, we recommend that you use a release, rather than fritter away development time on our QA. Also, while we'll do our best, we'll be most able to help with bugs on released versions.

To use Sous effectively, you'll need to know the URL of at least one running Sous server. (If you're looking to set up a new Sous deployment, see this guide.) That URL will be particular to your organization, but someone should be able to provide it to you.

Once you have it, run:

$ sous config server <URL>

(...replacing <URL> with the URL you were given.)

You should be good to go, but if you're curious, client configuration is documented here.

The Installation and Client Configuration steps should only need to be done once on any given workstation.

Now that you have a Sous client set up, let's add a project to Sous management.

The following commands will contact the Sous server and create your project in every known cluster:

# Enter the directory of your project.
$ cd <my-project>

# Connect to the Sous server and register the project's existence.
$ sous init

You can limit this to a single cluster by replacing the last command with sous init -cluster <name>

Sous will provide a list of known clusters if you give it bad input.

To add or remove your project from available clusters, use sous manifest get > manifest.yaml to download the current state of deployments. After editing the returned yaml file, use sous manifest set < manifest.yaml to send the changes to your Sous server.

Since there's no Docker image that corresponds to this project yet, Sous won't actually try to deploy your project yet.

From then on, the process is similar, but you don't need to do the sous init since Sous already knows about the project.

Instead, you'll want to use sous deploy, like this:

# Sous requires that projects be tagged with a
# semantic version.
$ git tag -a 1.2.4 -m "sous build tag" && git push --tags

# Actually do the docker build, push and registration steps
$ sous build

# Update Sous' view of the world so that it knows you want to
# deploy the version you built.
$ sous deploy -tag 1.2.4 -cluster <name>

As soon as you've completed the deploy step, Sous will be ready to deploy your service. You should see it deployed and running in a few seconds.

Note that these steps can be easily adapted to work on continuous integrations servers, as well.

Sous shells out to your system to interact with Git and Docker. This is a design decision, as it enables you to easily repeat the commands Sous issues. That means that when they fail, as they sometimes do, you have the power to re-play what happened, and figure out the issue.

You will need:

• Git >=2.2
• Go >= 1.7
• Docker >=1.10

On Mac, we recommend installing Docker by installing docker-machine via the Docker Toolbox available at https://www.docker.com/toolbox

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