def gateway_directives_from_volume_info( volume_info, local_hostname, slice_secret ):
"""
Extract gateway directives from an observer's description of the volume for this host.
"""
gateway_directives = {
"UG": {},
"RG": {},
"AG": {}
}
volume_name = volume_info[ observer_cred.OPENCLOUD_VOLUME_NAME ]
gateway_name_prefix = volume_info[ observer_cred.OPENCLOUD_SLICE_GATEWAY_NAME_PREFIX ]
# get what we need...
try:
RG_hostname = local_hostname
AG_hostname = local_hostname
# global hostnames (i.e. multiple instantiations of the same gateway) override local hostnames.
if volume_info[ observer_cred.OPENCLOUD_SLICE_AG_GLOBAL_HOSTNAME ] is not None:
AG_hostname = volume_info[ observer_cred.OPENCLOUD_SLICE_AG_GLOBAL_HOSTNAME ]
if volume_info[ observer_cred.OPENCLOUD_SLICE_RG_GLOBAL_HOSTNAME ] is not None:
RG_hostname = volume_info[ observer_cred.OPENCLOUD_SLICE_RG_GLOBAL_HOSTNAME ]
gateway_directives["UG"]["instantiate"] = volume_info[ observer_cred.OPENCLOUD_SLICE_INSTANTIATE_UG ]
gateway_directives["UG"]["run"] = volume_info[ observer_cred.OPENCLOUD_SLICE_RUN_UG ]
gateway_directives["UG"]["port"] = volume_info[ observer_cred.OPENCLOUD_SLICE_UG_PORT ]
gateway_directives["UG"]["closure"] = volume_info[ observer_cred.OPENCLOUD_SLICE_UG_CLOSURE ]
gateway_directives["UG"]["name"] = provisioning.make_gateway_name( gateway_name_prefix, "UG", volume_name, local_hostname )
gateway_directives["UG"]["key_password"] = provisioning.make_gateway_private_key_password( gateway_directives["UG"]["name"], slice_secret )
gateway_directives["UG"]["hostname"] = local_hostname
gateway_directives["RG"]["instantiate"] = volume_info[ observer_cred.OPENCLOUD_SLICE_INSTANTIATE_RG ]
gateway_directives["RG"]["run"] = volume_info[ observer_cred.OPENCLOUD_SLICE_RUN_RG ]
gateway_directives["RG"]["port"] = volume_info[ observer_cred.OPENCLOUD_SLICE_RG_PORT ]
gateway_directives["RG"]["closure"] = volume_info[ observer_cred.OPENCLOUD_SLICE_RG_CLOSURE ]
gateway_directives["RG"]["name"] = provisioning.make_gateway_name( gateway_name_prefix, "RG", volume_name, RG_hostname )
gateway_directives["RG"]["key_password"] = provisioning.make_gateway_private_key_password( gateway_directives["RG"]["name"], slice_secret )
gateway_directives["RG"]["hostname"] = RG_hostname
gateway_directives["AG"]["instantiate"] = volume_info[ observer_cred.OPENCLOUD_SLICE_INSTANTIATE_AG ]
gateway_directives["AG"]["run"] = volume_info[ observer_cred.OPENCLOUD_SLICE_RUN_AG ]
gateway_directives["AG"]["port"] = volume_info[ observer_cred.OPENCLOUD_SLICE_AG_PORT ]
gateway_directives["AG"]["closure"] = volume_info[ observer_cred.OPENCLOUD_SLICE_AG_CLOSURE ]
gateway_directives["AG"]["name"] = provisioning.make_gateway_name( gateway_name_prefix, "AG", volume_name, AG_hostname )
gateway_directives["AG"]["key_password"] = provisioning.make_gateway_private_key_password( gateway_directives["AG"]["name"], slice_secret )
gateway_directives["AG"]["hostname"] = AG_hostname
except Exception, e:
log.exception(e)
log.error("Invalid configuration for Volume %s" % volume_name)
return None
def setup_global_RG(principal_id,
volume_name,
gateway_name_prefix,
slice_secret,
RG_port,
RG_closure,
global_hostname="localhost"):
"""
Create/read an RG that will run on each host, on a particular global hostname.
"""
client = connect_syndicate()
RG_name = syndicate_provisioning.make_gateway_name(gateway_name_prefix,
"RG", volume_name,
global_hostname)
RG_key_password = syndicate_provisioning.make_gateway_private_key_password(
RG_name, slice_secret)
try:
rc = syndicate_provisioning.ensure_RG_exists(client,
principal_id,
volume_name,
RG_name,
global_hostname,
RG_port,
RG_key_password,
closure=RG_closure)
except Exception, e:
logger.exception(e)
return False
def setup_global_RG( principal_id, volume_name, gateway_name_prefix, slice_secret, RG_port, RG_closure, global_hostname="localhost" ):
"""
Create/read an RG that will run on each host, on a particular global hostname.
"""
client = connect_syndicate()
RG_name = syndicate_provisioning.make_gateway_name( gateway_name_prefix, "RG", volume_name, global_hostname )
RG_key_password = syndicate_provisioning.make_gateway_private_key_password( RG_name, slice_secret )
try:
rc = syndicate_provisioning.ensure_RG_exists( client, principal_id, volume_name, RG_name, global_hostname, RG_port, RG_key_password, closure=RG_closure )
except Exception, e:
logger.exception(e)
return False
"""
client = connect_syndicate()
try:
rc = ensure_volume_access_right_exists(user_email, volume_name, caps)
assert rc is True, "Failed to create access right for %s in %s" % (
user_email, volume_name)
except Exception, e:
logger.exception(e)
return False
RG_name = syndicate_provisioning.make_gateway_name("OpenCloud", "RG",
volume_name,
"localhost")
RG_key_password = syndicate_provisioning.make_gateway_private_key_password(
RG_name, slice_secret)
try:
rc = syndicate_provisioning.ensure_RG_exists(client,
user_email,
volume_name,
RG_name,
"localhost",
RG_port,
RG_key_password,
closure=RG_closure)
except Exception, e:
logger.exception(e)
return False
return True
Set up the Volume to allow the slice to provision UGs in it, and to fire up RGs.
* create the Volume Access Right for the user, so (s)he can create Gateways.
* provision a single Replica Gateway, serving on localhost.
"""
client = connect_syndicate()
try:
rc = ensure_volume_access_right_exists( user_email, volume_name, caps )
assert rc is True, "Failed to create access right for %s in %s" % (user_email, volume_name)
except Exception, e:
logger.exception(e)
return False
RG_name = syndicate_provisioning.make_gateway_name( "OpenCloud", "RG", volume_name, "localhost" )
RG_key_password = syndicate_provisioning.make_gateway_private_key_password( RG_name, slice_secret )
try:
rc = syndicate_provisioning.ensure_RG_exists( client, user_email, volume_name, RG_name, "localhost", RG_port, RG_key_password, closure=RG_closure )
except Exception, e:
logger.exception(e)
return False
return True
#-------------------------------
def teardown_volume_access( user_email, volume_name ):
"""
Revoke access to a Volume for a User.
* remove the user's Volume Access Right
