You also need to install Docker Compose. See the [manual](https://docs.docker.com/compose/install/). Here are the commands you need to execute
```
$ curl -L https://github.com/docker/compose/releases/download/1.16.1/docker-compose-`uname -s`-`uname -m` > ./docker-compose
$ sudo mv ./docker-compose /usr/bin/docker-compose
$ sudo chmod +x /usr/bin/docker-compose
```
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