Usage:
Creating resources:

from x import resource
node1 = resource.create('node1', 'x/resources/ro_node/', 'rs/', {'ip':'10.0.0.3', 'ssh_key' : '/vagrant/tmp/keys/ssh_private', 'user':'vagrant'})
node2 = resource.create('node2', 'x/resources/ro_node/', 'rs/', {'ip':'10.0.0.4', 'ssh_key' : '/vagrant/tmp/keys/ssh_private', 'user':'vagrant'})
keystone_db_data = resource.create('mariadb_keystone_data', 'x/resources/data_container/', 'rs/', {'image' : 'mariadb', 'export_volumes' : ['/var/lib/mysql'], 'host': '', 'remote_user': '', 'ssh_key': ''}, connections={'host' : 'node2.ip', 'ssh_key':'node2.ssh_key', 'remote_user':'node2.user'})
nova_db_data = resource.create('mariadb_nova_data', 'x/resources/data_container/', 'rs/', {'image' : 'mariadb', 'export_volumes' : ['/var/lib/mysql'], 'host': '', 'remote_user': '', 'ssh_key': ''}, connections={'host' : 'node1.ip', 'ssh_key':'node1.ssh_key', 'remote_user':'node1.user'})

to make connection after resource is created use signal.connect

*** WARNNING ***
Resource DB is stored only in memory, if you close python interpretet you will lost it. 
It can be recreated from resources but it's not done yet.
Connections are stored only in memory. It can be easly dumped as JSON file