rwlaunchpad/ra/pytest/ns/haproxy/test_scaling.py

   1
   2 #
   3 #   Copyright 2016 RIFT.IO Inc
   4 #
   5 #   Licensed under the Apache License, Version 2.0 (the "License");
   6 #   you may not use this file except in compliance with the License.
   7 #   You may obtain a copy of the License at
   8 #
   9 #       http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 #   Unless required by applicable law or agreed to in writing, software
  12 #   distributed under the License is distributed on an "AS IS" BASIS,
  13 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 #   See the License for the specific language governing permissions and
  15 #   limitations under the License.
  16 #
  17
  18 import pytest
  19
  20 from gi.repository import NsrYang, RwNsrYang, RwVnfrYang, NsdYang, RwNsdYang
  21 import rift.auto.session
  22
  23 @pytest.fixture(scope='module')
  24 def proxy(request, mgmt_session):
  25     return mgmt_session.proxy
  26
  27
  28 ScalingGroupInstance = NsrYang.YangData_Nsr_NsInstanceConfig_Nsr_ScalingGroup_Instance
  29 ScalingGroup = NsrYang.YangData_Nsr_NsInstanceConfig_Nsr_ScalingGroup
  30
  31 INSTANCE_ID = 1
  32
  33
  34 @pytest.mark.depends('nsr')
  35 @pytest.mark.incremental
  36 class TestScaling:
  37     def wait_for_nsr_state(self, proxy, state):
  38         """Wait till the NSR reaches a desired state.
  39
  40         Args:
  41             proxy (Callable): Proxy for launchpad session.
  42             state (str): Expected state
  43         """
  44         nsr_opdata = proxy(RwNsrYang).get('/ns-instance-opdata')
  45         nsr = nsr_opdata.nsr[0]
  46         xpath = "/ns-instance-opdata/nsr[ns-instance-config-ref='{}']/operational-status".format(nsr.ns_instance_config_ref)
  47         proxy(RwNsrYang).wait_for(xpath, state, timeout=240)
  48
  49     def verify_scaling_group(self, proxy, group_name, expected_records_count, scale_out=True):
  50         """
  51         Args:
  52             proxy (Callable): LP session
  53             group_name (str): Group name which is being scaled up.
  54             scale_out (bool, optional): To identify scale-out/scale-in mode.
  55
  56         Asserts:
  57             1. Additional records are added to the opdata
  58             2. Status of the scaling group
  59             3. New vnfr record has been created.
  60         """
  61         nsr_opdata = proxy(RwNsrYang).get('/ns-instance-opdata')
  62         nsr_id = nsr_opdata.nsr[0].ns_instance_config_ref
  63
  64         xpath = ('/ns-instance-opdata/nsr[ns-instance-config-ref="{}"]'
  65                  '/scaling-group-record[scaling-group-name-ref="{}"]').format(
  66                         nsr_id, group_name)
  67
  68         scaling_record = proxy(NsrYang).get(xpath)
  69
  70         assert len(scaling_record.instance) == expected_records_count
  71
  72         for instance in scaling_record.instance:
  73             assert instance.op_status == 'running'
  74
  75             for vnfr in instance.vnfrs:
  76                 vnfr_record = proxy(RwVnfrYang).get(
  77                         "/vnfr-catalog/vnfr[id='{}']".format(vnfr))
  78                 assert vnfr_record is not None
  79
  80     def verify_scale_up(self, proxy, group_name, expected):
  81         """Verifies the scaling up steps for the group
  82         NSR moves from running -> scaling-up -> running
  83
  84         Args:
  85             proxy (callable): LP proxy
  86             group_name (str): Name of the group to verify.
  87         """
  88         self.wait_for_nsr_state(proxy, "scaling-out")
  89         self.wait_for_nsr_state(proxy, "running")
  90         self.verify_scaling_group(proxy, group_name, expected)
  91
  92     def verify_scale_in(self, proxy, group_name, expected):
  93         """Verifies the scaling in streps for the group.
  94         NSR moves from running -> scaling-down -> running
  95
  96         Args:
  97             proxy (callable): LP proxy
  98             group_name (str): group name.
  99         """
 100         self.wait_for_nsr_state(proxy, "scaling-in")
 101         self.wait_for_nsr_state(proxy, "running")
 102         self.verify_scaling_group(proxy, group_name, expected, scale_out=False)
 103
 104     def test_wait_for_nsr_configured(self, proxy):
 105         """Wait till the NSR state moves to configured before starting scaling
 106         tests.
 107         """
 108         nsr_opdata = proxy(RwNsrYang).get('/ns-instance-opdata')
 109         nsrs = nsr_opdata.nsr
 110
 111         assert len(nsrs) == 1
 112         current_nsr = nsrs[0]
 113
 114         xpath = "/ns-instance-opdata/nsr[ns-instance-config-ref='{}']/config-status".format(current_nsr.ns_instance_config_ref)
 115         proxy(RwNsrYang).wait_for(xpath, "configured", timeout=240)
 116
 117
 118     def test_min_max_scaling(self, proxy):
 119         nsr_opdata = proxy(RwNsrYang).get('/ns-instance-opdata')
 120         nsrs = nsr_opdata.nsr
 121         nsd_id = nsrs[0].nsd_ref
 122         nsr_id = nsrs[0].ns_instance_config_ref
 123
 124         # group_name = "http_client_group"
 125
 126         xpath = "/ns-instance-opdata/nsr[ns-instance-config-ref='{}']/scaling-group-record".format(nsr_id)
 127         scaling_records = proxy(RwNsrYang).get(xpath, list_obj=True)
 128
 129         for scaling_record in scaling_records.scaling_group_record:
 130             group_name = scaling_record.scaling_group_name_ref
 131             xpath = "/nsd-catalog/nsd[id='{}']/scaling-group-descriptor[name='{}']".format(
 132                     nsd_id, group_name)
 133             scaling_group_desc = proxy(NsdYang).get(xpath)
 134
 135             # Add + 1 to go beyond the threshold
 136             for instance_id in range(1, scaling_group_desc.max_instance_count + 1):
 137                 xpath = '/ns-instance-config/nsr[id="{}"]/scaling-group[scaling-group-name-ref="{}"]'.format(
 138                             nsr_id,
 139                             group_name)
 140
 141                 instance = ScalingGroupInstance.from_dict({"id": instance_id})
 142                 scaling_group = proxy(NsrYang).get(xpath)
 143
 144                 if scaling_group is None:
 145                     scaling_group = ScalingGroup.from_dict({
 146                         'scaling_group_name_ref': group_name,
 147                         })
 148
 149                 scaling_group.instance.append(instance)
 150
 151                 try:
 152                     proxy(NsrYang).merge_config(xpath, scaling_group)
 153                     self.verify_scale_up(proxy, group_name, instance_id + 1)
 154                 except rift.auto.session.ProxyRequestError:
 155                     assert instance_id == scaling_group_desc.max_instance_count
 156
 157             for instance_id in range(1, scaling_group_desc.max_instance_count):
 158                 xpath = ('/ns-instance-config/nsr[id="{}"]/scaling-group'
 159                          '[scaling-group-name-ref="{}"]/'
 160                          'instance[id="{}"]').format(
 161                          nsr_id, group_name, instance_id)
 162                 proxy(NsrYang).delete_config(xpath)
 163                 self.verify_scale_in(proxy, group_name, instance_id)
 164
 165
 166
 167
 168
 169
 170