cassandra:
   allow-single-node: True
   cluster-name: midonet
   apt-repo-spec: "deb http://debian.datastax.com/community stable main"
   apt-repo-key: "7E41C00F85BFC1706C4FFFB3350200F2B999A372"
   extra_packages: "openjdk-7-jre-headless dsc20=2.0.10-1"
   package_version: "2.0.10"