def update_vls(nsId, vl_list, vls_ids_to_remove):
"""
Method to update logical links on a network service when required, such as a scaling procedure
Parameters
----------
nsId: string
Identifier of the logical link to perform the update operation
vl_list: list of dicts
list of vls to deploy by the mtp
vl_ids_to_remove:
list of vls_ids to remove
Returns
-------
None
"""
#links to add
mtp_vl_ids = []
if (len(vl_list["logicalLinkPathList"]) > 0):
mtp_vl_ids = sbi.deploy_vl(vl_list, nsId)
vl_info = []
for i in range(0, len(mtp_vl_ids)):
vl_info.append({mtp_vl_ids[i]: vl_list["logicalLinkPathList"][i]})
vl_list_prev = nsir_db.get_vls(nsId)
vl_total = vl_list_prev + vl_info
nsir_db.save_vls(vl_total, nsId)
#ids to remove
for ids in vls_ids_to_remove:
vl_info.append({"interNfviPopConnnectivityId": ids})
sbi.uninstall_vl(vl_info, nsId)
nsir_db.delete_vls(nsId, vls_ids_to_remove)
def deploy_vls(vl_list, nsId):
"""
Function description
Parameters
----------
param1: type
param1 description
Returns
-------
name: type
return description
"""
# save virtual links info related to nsId so it can be freed at terminate
nsir_db.save_vls(vl_list, nsId)
# deploy
mtp_vl_ids = []
for vl in vl_list:
vlid = deploy_vl(vl)
mtp_vl_ids.append(vlid)
nsir_db.save_vls(mtp_vl_ids, nsId)
def deploy_vls(vl_list, nsId):
"""
Function description
Parameters
----------
vl_list: list of dicts
list of vls to deploy where each element of the list is a dict with the following format:
nsId: string
Identifier of the logical link to perform the update operation
Returns
-------
None
"""
# deploy: you make only a single call with all the logical links for the network service
mtp_vl_ids = []
if (len(vl_list["logicalLinkPathList"]) > 0):
mtp_vl_ids = sbi.deploy_vl(vl_list, nsId)
vl_info = []
for i in range(0, len(mtp_vl_ids)):
vl_info.append({mtp_vl_ids[i]: vl_list["logicalLinkPathList"][i]})
nsir_db.save_vls(vl_info, nsId)