Description of problem:

    "deploy_stderr": "Device \"br_ex\" does not exist.
Device \"ovs_system\" does not exist.
\u001b[1;31mError: /Stage[main]/Main/Sysctl::Value[net.netfilter.nf_conntrack_max]/Exec[exec_sysctl_net.netfilter.nf_conntrack_max]: Failed to call refresh: /sbin/sysctl net.netfilter.nf_conntrack_max=500000 returned 255 instead of one of [0]\u001b[0m
\u001b[1;31mError: /Stage[main]/Main/Sysctl::Value[net.netfilter.nf_conntrack_max]/Exec[exec_sysctl_net.netfilter.nf_conntrack_max]: /sbin/sysctl net.netfilter.nf_conntrack_max=500000 returned 255 instead of one of [0]\u001b[0m
\u001b[1;31mError: Could not prefetch mysql_user provider 'mysql': Execution of '/usr/bin/mysql -NBe SELECT CONCAT(User, '@',Host) AS User FROM mysql.user' returned 1: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)\u001b[0m
\u001b[1;31mError: Could not prefetch mysql_database provider 'mysql': Execution of '/usr/bin/mysql -NBe show databases' returned 1: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)\u001b[0m
\u001b[1;31mError: /Stage[main]/Main/Sysctl::Value[net.nf_conntrack_max]/Exec[exec_sysctl_net.nf_conntrack_max]: Failed to call refresh: /sbin/sysctl net.nf_conntrack_max=500000 returned 255 instead of one of [0]\u001b[0m
\u001b[1;31mError: /Stage[main]/Main/Sysctl::Value[net.nf_conntrack_max]/Exec[exec_sysctl_net.nf_conntrack_max]: /sbin/sysctl net.nf_conntrack_max=500000 returned 255 instead of one of [0]\u001b[0m
", 
    "deploy_status_code": 6
  }, 
  "creation_time": "2016-02-04T14:44:23Z", 
  "updated_time": "2016-02-04T14:46:24Z", 
  "input_values": {}, 
  "action": "CREATE", 
  "status_reason": "deploy_status_code : Deployment exited with non-zero status code: 6", 
  "id": "3350b770-b222-45bb-9288-54fbe4462eb7"
}