Adds collection of vim status metric

[osm/MON.git] / osm_mon / collector / vnf_collectors / juju.py

diff --git a/osm_mon/collector/vnf_collectors/juju.py b/osm_mon/collector/vnf_collectors/juju.py
new file mode 100644 (file)
index 0000000..928b35a
--- /dev/null
+++ b/osm_mon/collector/vnf_collectors/juju.py
@@ -0,0 +1,93 @@
+# Copyright 2018 Whitestack, LLC
+# *************************************************************
+
+# This file is part of OSM Monitoring module
+# All Rights Reserved to Whitestack, LLC
+
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+
+#         http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: bdiaz@whitestack.com or glavado@whitestack.com
+##
+import asyncio
+import logging
+from typing import List
+
+from n2vc.vnf import N2VC
+
+from osm_mon.collector.metric import Metric
+from osm_mon.collector.vnf_collectors.base import BaseCollector
+from osm_mon.collector.vnf_metric import VnfMetric
+from osm_mon.core.common_db import CommonDbClient
+from osm_mon.core.exceptions import VcaDeploymentInfoNotFound
+from osm_mon.core.settings import Config
+
+log = logging.getLogger(__name__)
+
+
+class VCACollector(BaseCollector):
+    def __init__(self):
+        cfg = Config.instance()
+        self.common_db = CommonDbClient()
+        self.loop = asyncio.get_event_loop()
+        self.n2vc = N2VC(server=cfg.OSMMON_VCA_HOST, user=cfg.OSMMON_VCA_USER, secret=cfg.OSMMON_VCA_SECRET)
+
+    def collect(self, vnfr: dict) -> List[Metric]:
+        nsr_id = vnfr['nsr-id-ref']
+        vnf_member_index = vnfr['member-vnf-index-ref']
+        vnfd = self.common_db.get_vnfd(vnfr['vnfd-id'])
+        metrics = []
+        for vdur in vnfr['vdur']:
+            # This avoids errors when vdur records have not been completely filled
+            if 'name' not in vdur:
+                continue
+            vdu = next(
+                filter(lambda vdu: vdu['id'] == vdur['vdu-id-ref'], vnfd['vdu'])
+            )
+            if 'vdu-configuration' in vdu and 'metrics' in vdu['vdu-configuration']:
+                try:
+                    vca_deployment_info = self.get_vca_deployment_info(nsr_id, vnf_member_index, vdur['name'])
+                except VcaDeploymentInfoNotFound:
+                    continue
+                measures = self.loop.run_until_complete(self.n2vc.GetMetrics(vca_deployment_info['model'],
+                                                                             vca_deployment_info['application']))
+                log.debug('Measures: %s', measures)
+                for measure_list in measures.values():
+                    for measure in measure_list:
+                        log.debug("Measure: %s", measure)
+                        metric = VnfMetric(nsr_id, vnf_member_index, vdur['name'], measure['key'],
+                                           float(measure['value']))
+                        metrics.append(metric)
+        if 'vnf-configuration' in vnfd and 'metrics' in vnfd['vnf-configuration']:
+            try:
+                vca_deployment_info = self.get_vca_deployment_info(nsr_id, vnf_member_index, None)
+            except VcaDeploymentInfoNotFound:
+                return metrics
+            measures = self.loop.run_until_complete(self.n2vc.GetMetrics(vca_deployment_info['model'],
+                                                                         vca_deployment_info['application']))
+            log.debug('Measures: %s', measures)
+            for measure_list in measures.values():
+                for measure in measure_list:
+                    log.debug("Measure: %s", measure)
+                    metric = VnfMetric(nsr_id, vnf_member_index, '', measure['key'], float(measure['value']))
+                    metrics.append(metric)
+        return metrics
+
+    def get_vca_deployment_info(self, nsr_id, vnf_member_index, vdur_name):
+        nsr = self.common_db.get_nsr(nsr_id)
+        for vca_deployment in nsr["_admin"]["deployed"]["VCA"]:
+            if vca_deployment:
+                if vca_deployment['member-vnf-index'] == vnf_member_index and vca_deployment['vdu_name'] == vdur_name:
+                    return vca_deployment
+        raise VcaDeploymentInfoNotFound("VCA deployment info for nsr_id {}, index {} and vdur_name {} not found."
+                                        .format(nsr_id, vnf_member_index, vdur_name))