gistfile1.json

{
    "name":"foo",
    "environments": {
        "bld": {
            "env_vars": {
                "foo":"1",
                "bar":"2"
            },
            "docker_hosts":["foo-docker-01", "foo-docker-02"]
        },
        "prod": {
            "env_vars": {
                "foo":"1",
                "bar":"2"
            },
            "docker_hosts":["foo-docker-01", "foo-docker-02"]
        }
    }
}