def get_tacker_client(site, service_type='nfv-orchestration', timeout=None, **kwargs):
"""
Get a client connection to Tacker authenticated with our Keystone credentials
ie) client = construct_http_client(username='******', password='******', tenant_name='admin',
auth_url='http://192.168.1.121:5000/v2.0')
:param site: (ControllerSite) Site to get client for
:param service_type: (string) Service type defined for Tacker service. For the Liberty
release, this will may be 'servicevm', for Mitaka+, it will
most likely be 'nfv-orchestration'. Run the following command
on your controller to verify: 'openstack service list' and
look for the'tacker' entry's 'Type'
:param timeout: (integer) Connection timeout, see keystoneclient.v2_0.client module
:return: (HttpClient) Tacker HTTP API client
"""
observer_logger.info('TACKER: get client request: user: %s, tenant: %s, auth: %s' %
(site.controller.admin_user, site.controller.admin_tenant, site.controller.auth_url))
client = construct_http_client(username=site.controller.admin_user,
tenant_name=site.controller.admin_tenant,
password=site.controller.admin_password,
auth_url=site.controller.auth_url,
service_type=service_type,
timeout=timeout, **kwargs)
if not client:
observer_logger.info('TACKER: get client failed')
else:
observer_logger.info('TACKER: get client results: %s' % client)
try:
client.authenticate()
except Unauthorized as e:
observer_logger.error('get_tacker_client: (%s of %s) authentication error: %s' % (site.controller.admin_user,
site.controller.admin_tenant,
e.message))
raise
except ConnectionFailed:
# This can happen during unittest if you retry too often
raise
return client
def destroy_nfv(client, vnf_id):
"""
Stop and delete a given VNF
:param client: (HttpClient) Tacker HTTP API client
:param vnf_id: (string) VNF UUID
:return: True if successful
"""
try:
response, response_body = client.do_request(url='%s/vnfs/%s' % (_api_version, vnf_id), method='DELETE')
except (Unauthorized, SslCertificateValidationError) as e:
observer_logger.error('destroy_nfv: Client (%s of %s) authentication error: %s' % (client.username,
client.tenant_name,
e.message))
raise
except ConnectionFailed as e:
observer_logger.error('destroy_nfv: Client (%s of %s) Connection error: %s' % (client.username,
client.tenant_name,
e.message))
raise
# Response is a tuple with [0] -> class 'requests.models.response'
# Check response status
try:
response.raise_for_status()
except HTTPError as e:
observer_logger.error('destroy_nfv: Client (%s of %s) Response Failed: %s' % (client.username,
client.tenant_name,
e.message))
raise
# TODO: Debug this.
return response.ok
def get_nfvd(client, vnfd_id):
"""
Get an installed VNF descriptor
ie) client.do_request(url='/v1.0/vnfds/378b774d-89f5-4634-9c65-9c49ed6f00ce', method='GET')
(<Response [200]>,
u'{ "vnfd": {
"service_types": [
{
"service_type": "vnfd",
"id": "378b774d-89f5-4634-9c65-9c49ed6f00ce"
}
],
"description": "OpenWRT with services",
"tenant_id": "4dd6c1d7b6c94af980ca886495bcfed0",
"mgmt_driver": "openwrt",
"infra_driver": "heat",
"attributes": {
"vnfd": "template_name: OpenWRT\r\ndescription:
template_description <sample_vnfd_template>"
},
"id": "247b045e-d64f-4ae0-a3b4-8441b9e5892c",
"name": "openwrt_services"
}
}')
:param client: (HttpClient) Tacker HTTP API client
:param nfvd_id: (string) VNF ID (UUID) to retrieve
:return: (dict) Installed VNF descriptor or None on failure
"""
try:
response, response_body = client.do_request(url='%s/vnfds/%s' % (_api_version, vnfd_id), method='GET')
except (Unauthorized, SslCertificateValidationError) as e:
observer_logger.error('get_vnfd: Client (%s of %s) authentication error: %s' % (client.username,
client.tenant_name,
e.message))
raise
except ConnectionFailed as e:
observer_logger.error('get_vnfd: Client (%s of %s) Connection error: %s' % (client.username,
client.tenant_name,
e.message))
raise
# Check response status
try:
response.raise_for_status()
except HTTPError as e:
observer_logger.error('get_vnfd: Client (%s of %s) Response Failed: %s' % (client.username,
client.tenant_name,
e.message))
raise
return response.json()['vnfd']
def get_vnf(client, vnf_id):
"""
Get a list of all running NFVs
GET /v1.0/vnfs
ie) client.do_request(url='/v1.0/vnfs/{id}', method='GET')
(<Response [200]>, u'{"vnfs": []}')
:param client: (HttpClient) Tacker HTTP API client
:param vnf_id: (string) UUID of VNF to retrieve
:return: (list of dicts) Current list of NFVs
"""
try:
response, response_body = client.do_request(url='%s/vnfs/%s' % (_api_version, vnf_id), method='GET')
except (Unauthorized, SslCertificateValidationError) as e:
observer_logger.error('get_nfv_list: Client (%s of %s) authentication error: %s' % (client.username,
client.tenant_name,
e.message))
raise
except ConnectionFailed as e:
observer_logger.error('get_nfv_list: Client (%s of %s) Connection error: %s' % (client.username,
client.tenant_name,
e.message))
raise
# Response is a tuple with [0] -> class 'requests.models.response'
# Check response status
try:
response.raise_for_status()
except HTTPError as e:
observer_logger.error('get_nfv_list: Client (%s of %s) Response Failed: %s' % (client.username,
client.tenant_name,
e.message))
raise
# TODO: Debug this. Document says this is a list of dict (with 1 item) but that does not make sense
json_data = response.json()['vnf']
return json_data if len(json_data) > 0 else None
def get_vnf_list(client):
"""
Get a list of all running VNFs
ie) client.do_request(url='/v1.0/vnfs', method='GET')
(<Response [200]>, u'{"vnfs": []}')
:param client: (HttpClient) Tacker HTTP API client
:return: (list of dicts) Current list of NFVs
"""
try:
response, response_body = client.do_request(url='%s/vnfs' % _api_version, method='GET')
except (Unauthorized, SslCertificateValidationError) as e:
observer_logger.error('get_vnf_list: Client (%s of %s) authentication error: %s' % (client.username,
client.tenant_name,
e.message))
raise
except ConnectionFailed as e:
observer_logger.error('get_vnf_list: Client (%s of %s) Connection error: %s' % (client.username,
client.tenant_name,
e.message))
raise
# Response is a tuple with [0] -> class 'requests.models.response'
# Check response status
try:
response.raise_for_status()
except HTTPError as e:
observer_logger.error('get_vnf_list: Client (%s of %s) Response Failed: %s' % (client.username,
client.tenant_name,
e.message))
raise
return response.json()['vnfs']
def destroy_vnfd(client, vnfd_id):
"""
Delete a given VNFD from the catalog
:param client: (HttpClient) Tacker HTTP API client
:param vnfd_id: (string) VNFD UUID
:return: True if successful
"""
try:
# print 'deleting VNFD %s' % vnfd_id
response, response_body = client.do_request(url='%s/vnfds/%s' % (_api_version, vnfd_id), method='DELETE')
except (Unauthorized, SslCertificateValidationError) as e:
observer_logger.error('destroy_nfvd: Client (%s of %s) authentication error: %s' % (client.username,
client.tenant_name,
e.message))
raise
except ConnectionFailed as e:
observer_logger.error('destroy_nfvd: Client (%s of %s) Connection error: %s' % (client.username,
client.tenant_name,
e.message))
raise
# Check response status
try:
# pprint.PrettyPrinter(indent=4).pprint(response)
# pprint.PrettyPrinter(indent=4).pprint(response_body)
response.raise_for_status()
except HTTPError as e:
observer_logger.error('destroy_nfvd: Client (%s of %s) Response Failed: %s' % (client.username,
client.tenant_name,
e.message))
raise
return response.ok
def get_vnfd_list(client):
"""
Get a list of all installed VNF descriptors
ie) client.do_request(url='/v1.0/vnfds', method='GET')
(<Response [200]>,
u'{"vnfds":
[
{
"service_types": [
{
"service_type": "vnfd",
"id": "b3f31224-8f94-4e8f-b08c-0004b77d22b8"
}
],
"description": "FreeRADIUS Server",
"tenant_id": "092e0614241941568b4c0e6406f7c28f",
"mgmt_driver": "noop",
"infra_driver": "heat",
"attributes": {
"vnfd": "tosca_definitions_version: ... <tosca-file-content> ..."
},
"id": "89b1b3c1-7a88-476b-a13e-9ec49991ab30",
"name": "RADIUS Server"
},
...
]
}')
:param client: (HttpClient) Tacker HTTP API client
:return: (list of dicts) Installed VNF descriptors
"""
try:
response, response_body = client.do_request(url='/%s/vnfds' % _api_version, method='GET')
except (Unauthorized, SslCertificateValidationError) as e:
observer_logger.error('get_vnfd_list: Client (%s of %s) authentication error: %s' % (client.username,
client.tenant_name,
e.message))
raise
except ConnectionFailed as e:
observer_logger.error('get_vnfd_list: Client (%s of %s) Connection error: %s' % (client.username,
client.tenant_name,
e.message))
raise
# Response is a tuple with [0] -> class 'requests.models.response'
# Check response status
try:
response.raise_for_status()
except HTTPError as e:
observer_logger.error('get_vnfd_list: Client (%s of %s) Response Failed: %s' % (client.username,
client.tenant_name,
e.message))
raise
return response.json()['vnfds']
def update_nfv(client, vnf_id, config_filename, username=None, password=None, tenant_name=None):
"""
Update a vnf based on user config file or data.
PUT /v1.0/vnfs/{vnf_id}
Request:
{"auth": {"tenantName": "admin",
"passwordCredentials": {"username": "******", "password": "******"}},
"vnf": {"attributes": {"config": "vdus:\n vdu1: <sample_vdu_config> \n\n"}}}
Response:
{
"vnf": {
"status": "PENDING_UPDATE",
"name": "",
"tenant_id": "4dd6c1d7b6c94af980ca886495bcfed0",
"instance_id": "4f0d6222-afa0-4f02-8e19-69e7e4fd7edc",
"mgmt_url": "{\"vdu1\": \"192.168.120.4\"}",
"attributes": {
"service_type": "firewall",
"monitoring_policy": "noop",
"config": "vdus:\n vdu1:\n config: {<sample_vdu_config>
type: OS::Nova::Server\n",
"failure_policy": "noop"
},
"id": "e3158513-92f4-4587-b949-70ad0bcbb2dd",
"description": "OpenWRT with services"
}
}
:param client: (HttpClient) Tacker HTTP API client
:param vnf_id: (string) VNF UUID
:param config_filename: Configuration filename
:param username: (string) Authentication username to use
:param password: (string) Authentication password
:param tenant_name: (string) Default tenant name (or UUID) to launch VNFs in TODO: Verify this param
:return: (dict) VNF launch results (see 'vnf' dict contents above for example)
"""
if tenant_name is None:
tenant_name = client.get_auth_info()['auth_tenant_id']
auth = {
'tenantName': tenant_name,
'passwordCredentials':
{
'username': username if username is not None else client.username,
'password': password if password is not None else client.password
}
}
config = {}
with open(config_filename) as f:
config['attributes']['config'] = f.read()
# Create body for request
body = {'auth': auth, 'vnf': config}
# TODO: May want to add parameter 'ensure_ascii=False' to json.dumps below
json_body = json.dumps(body)
try:
response, response_body = client.do_request(url='%s/vnfs' % _api_version, method='POST',
body=json_body)
except (Unauthorized, SslCertificateValidationError) as e:
observer_logger.error('update_nfv: Client (%s of %s) authentication error: %s' % (client.username,
client.tenant_name,
e.message))
raise
except ConnectionFailed as e:
observer_logger.error('update_nfv: Client (%s of %s) Connection error: %s' % (client.username,
client.tenant_name,
e.message))
raise
# Check response status
try:
response.raise_for_status()
except HTTPError as e:
observer_logger.error('update_nfv: Client (%s of %s) Response Failed: %s' % (client.username,
client.tenant_name,
e.message))
raise
return response.json()['vnf']
def launch_nfv(client, vnfd_id, param_filename, username=None, password=None, tenant_name=None):
"""
Launch an VNF
PUT /v1.0/vnfs/{vnf_id}
Request:
{
"auth": {"tenantName": "admin",
"passwordCredentials": {"username": "******", "password": "******"}},
"vnf": {"vnfd_id": "d770ddd7-6014-4191-92d8-a2cd7a6cecd8"}}
Response:
{
"vnf": {
"status": "PENDING_CREATE",
"name": "",
"tenant_id": "4dd6c1d7b6c94af980ca886495bcfed0",
"description": "OpenWRT with services",
"instance_id": "4f0d6222-afa0-4f02-8e19-69e7e4fd7edc",
"mgmt_url": null,
"attributes": {
"service_type": "firewall",
"heat_template": "description: OpenWRT with services\n
<sample_heat_template> type: OS::Nova::Server\n",
"monitoring_policy": "noop",
"failure_policy": "noop"
},
"id": "e3158513-92f4-4587-b949-70ad0bcbb2dd",
"vnfd_id": "247b045e-d64f-4ae0-a3b4-8441b9e5892c"
}
}
:param client: (HttpClient) Tacker HTTP API client
:param vnfd_id: (string) VNF UUID
:param param_filename: Filename of VNFD template parameters, if any
:param username: (string) Authentication username to use
:param password: (string) Authentication password
:param tenant_name: (string) Default tenant name (or UUID) to launch VNFs in TODO: Verify this param
:return: (dict) VNF launch results (see 'vnf' dict contents above for example)
"""
if tenant_name is None:
tenant_name = client.get_auth_info()['auth_tenant_id']
auth = {
'tenantName': tenant_name,
'passwordCredentials':
{
'username': username if username is not None else client.username,
'password': password if password is not None else client.password
}
}
# TODO: How do we give it a specific VNF name ????
# TODO: What about multi-VIM support in Mitaka+
# VNF portion
vnf = {'vnfd_id': vnfd_id}
# TODO: How is a parameter file passed in. May be this way
# TODO: Also support a config file, see .../python-tackerclinet/tackerclient/tacker/v1_0/vm/vnf.py
if param_filename is not None:
with open(param_filename) as f:
vnf['attributes']['param_values'] = f.read()
# Create body for request
body = {'auth': auth, 'vnf': vnf}
# TODO: May want to add parameter 'ensure_ascii=False' to json.dumps below
json_body = json.dumps(body)
try:
response, response_body = client.do_request(url='%s/vnfs' % _api_version, method='POST',
body=json_body)
except (Unauthorized, SslCertificateValidationError) as e:
observer_logger.error('launch_nfv: Client (%s of %s) authentication error: %s' % (client.username,
client.tenant_name,
e.message))
raise
except ConnectionFailed as e:
observer_logger.error('launch_nfv: Client (%s of %s) Connection error: %s' % (client.username,
client.tenant_name,
e.message))
raise
# Check response status
try:
response.raise_for_status()
except HTTPError as e:
observer_logger.error('launch_nfv: Client (%s of %s) Response Failed: %s' % (client.username,
client.tenant_name,
e.message))
raise
return response.json()['vnf']
def onboard_vnfd(client, filename, vnfd_name=None, vnfd_description=None, username=None, password=None, tenant_name=None):
"""
Install VNFD
ie) client.do_request(url='/v1.0/vnfds', method='POST')
request args = {
"auth": {"tenantName": "admin",
"passwordCredentials": {"username": "******", "password": "******"}},
"vnfd": {
"attributes": {
"vnfd": "template_name:
OpenWRT \r\ndescription: OpenWRT router\r\n\r\nservice_properties:\r\n Id:
sample-vnfd\r\n vendor: tacker\r\n version: 1\r\n\r\nvdus:\r\n vdu1:\r\n
id: vdu1\r\n vm_image: cirros-0.3.2-x86_64-uec\r\n instance_type:
m1.tiny\r\n\r\n network_interfaces:\r\n management:\r\n network:
net_mgmt\r\n management: true\r\n pkt_in:\r\n network:
net0\r\n pkt_out:\r\n network: net1\r\n\r\n placement_policy:
\r\n availability_zone: nova\r\n\r\n auto-scaling: noop\r\n
monitoring_policy: noop\r\n failure_policy: noop\r\n\r\n config:\r\n
param0: key0\r\n param1: key1"
},
"service_types": [ { "service_type": "vnfd" } ],
"mgmt_driver": "noop",
"infra_driver": "heat"
}
}
response = {
"vnfd": {
"service_types": [
{
"service_type": "vnfd",
"id": "336fe422-9fba-47c7-87fb-d48475c3e0ce"
}
],
"description": "OpenWRT router",
"tenant_id": "4dd6c1d7b6c94af980ca886495bcfed0",
"mgmt_driver": "noop",
"infra_driver": "heat",
"attributes": {
"vnfd": "template_name: OpenWRT \r\ndescription:
template_description <sample_vnfd_template>"
},
"id": "ab10a543-22ee-43af-a441-05a9d32a57da",
"name": "OpenWRT"
}
}
:param client: (HttpClient) Tacker HTTP API client
:param filename: (string) VNFD TOSCA File/Template
:param vnfd_name: (string) Name to give newly created VNFD
:param vnfd_description: (string) VNFD Description text
:param username: (string) Authentication username to use
:param password: (string) Authentication password
:param tenant_name: (string) Default tenant name (or UUID) to launch VNFs in TODO: Verify this param
:return: (requests.models.Response) Returned response, see .json() return for more dictionary of response which
includes: 'name' and 'id' entries
"""
auth = {
'passwordCredentials':
{
'username': username if username is not None else client.username,
'password': password if password is not None else client.password
}
}
if tenant_name is None:
auth['tenant_id'] = client.get_auth_info()['auth_tenant_id']
else:
auth['tenant_name'] = tenant_name
# TODO: How do we give it a specific VNFD name ????
# TODO: Need a lot of testing on this function. Look into error returns if parsing fails
# TODO: Look into TOSCA parser file differences between Libery & Mitaka. Make Mitaka work first !
# VNFD portion
with open(filename) as f:
tosca = f.read()
vnfd = {'attributes': {'vnfd': tosca},
'service_types': [{'service_type': 'vnfd'}],
'mgmt_driver': 'noop',
'infra_driver': 'heat'}
if vnfd_name is not None:
vnfd['name'] = vnfd_name
if vnfd_description is not None:
vnfd['description'] = vnfd_description
body = {'auth': auth, 'vnfd': vnfd}
# TODO: May want to add parameter 'ensure_ascii=False' to json.dumps below
json_body = json.dumps(body)
try:
response, response_body = client.do_request(url='%s/vnfds' % _api_version, method='POST',
body=json_body)
except (Unauthorized, SslCertificateValidationError) as e:
observer_logger.error('onboard_vnfd: Client (%s of %s) authentication error: %s' % (client.username,
client.tenant_name,
e.message))
raise
except ConnectionFailed as e:
observer_logger.error('onboard_vnfd: Client (%s of %s) Connection error: %s' % (client.username,
client.tenant_name,
e.message))
raise
# Check response status
try:
response.raise_for_status()
except HTTPError as e:
observer_logger.error('onboard_vnfd: Client (%s of %s) Response Failed: %s' % (client.username,
client.tenant_name,
e.message))
raise
return response
