Bug Fix - 2305: Automated scaling of Vnf is not happening through metrics collected...

Change-Id: I975f5bfe0e23f44d25ba30b29f5f19df463054f2
Signed-off-by: Rahul Kumar <rahul.k4@tataelxsi.co.in>

diff --git a/osm_lcm/ns.py b/osm_lcm/ns.py
index 71ede28..76f0bf5 100644 (file)
--- a/osm_lcm/ns.py
+++ b/osm_lcm/ns.py
@@ -6250,6 +6250,7 @@ class NsLcm(LcmBase):
         old_operational_status = ""
         old_config_status = ""
         nsi_id = None
+        prom_job_name = ""
         try:
             # wait for any previous tasks in process
             step = "Waiting for previous operations to terminate"
@@ -6360,6 +6361,15 @@ class NsLcm(LcmBase):
                         vdud = get_vdu(db_vnfd, vdu_delta["id"])
                         # vdu_index also provides the number of instance of the targeted vdu
                         vdu_count = vdu_index = get_vdur_index(db_vnfr, vdu_delta)
+                        if vdu_index <= len(db_vnfr["vdur"]):
+                            vdu_name_id = db_vnfr["vdur"][vdu_index - 1]["vdu-name"]
+                            prom_job_name = (
+                                db_vnfr["_id"] + vdu_name_id + str(vdu_index - 1)
+                            )
+                            prom_job_name = prom_job_name.replace("_", "")
+                            prom_job_name = prom_job_name.replace("-", "")
+                        else:
+                            prom_job_name = None
                         cloud_init_text = self._get_vdu_cloud_init_content(
                             vdud, db_vnfd
                         )
@@ -7148,7 +7158,69 @@ class NsLcm(LcmBase):
                         db_nsr_update["config-status"] = old_config_status
                         scale_process = None
             # POST-SCALE END
+            # Check if each vnf has exporter for metric collection if so update prometheus job records
+            if scaling_type == "SCALE_OUT":
+                if "exporters-endpoints" in db_vnfd.get("df")[0]:
+                    vnfr_id = db_vnfr["id"]
+                    db_vnfr = self.db.get_one("vnfrs", {"_id": vnfr_id})
+                    exporter_config = db_vnfd.get("df")[0].get("exporters-endpoints")
+                    self.logger.debug("exporter config :{}".format(exporter_config))
+                    artifact_path = "{}/{}/{}".format(
+                        base_folder["folder"],
+                        base_folder["pkg-dir"],
+                        "exporter-endpoint",
+                    )
+                    ee_id = None
+                    ee_config_descriptor = exporter_config
+                    rw_mgmt_ip = await self.wait_vm_up_insert_key_ro(
+                        logging_text,
+                        nsr_id,
+                        vnfr_id,
+                        vdu_id=db_vnfr["vdur"][-1]["vdu-id-ref"],
+                        vdu_index=db_vnfr["vdur"][-1]["count-index"],
+                        user=None,
+                        pub_key=None,
+                    )
+                    self.logger.debug("rw_mgmt_ip:{}".format(rw_mgmt_ip))
+                    self.logger.debug("Artifact_path:{}".format(artifact_path))
+                    vdu_id_for_prom = None
+                    vdu_index_for_prom = None
+                    for x in get_iterable(db_vnfr, "vdur"):
+                        vdu_id_for_prom = x.get("vdu-id-ref")
+                        vdu_index_for_prom = x.get("count-index")
+                    vnfr_id = vnfr_id + vdu_id + str(vdu_index)
+                    vnfr_id = vnfr_id.replace("_", "")
+                    prometheus_jobs = await self.extract_prometheus_scrape_jobs(
+                        ee_id=ee_id,
+                        artifact_path=artifact_path,
+                        ee_config_descriptor=ee_config_descriptor,
+                        vnfr_id=vnfr_id,
+                        nsr_id=nsr_id,
+                        target_ip=rw_mgmt_ip,
+                        element_type="VDU",
+                        vdu_id=vdu_id_for_prom,
+                        vdu_index=vdu_index_for_prom,
+                    )
+
+                    self.logger.debug("Prometheus job:{}".format(prometheus_jobs))
+                    if prometheus_jobs:
+                        db_nsr_update[
+                            "_admin.deployed.prometheus_jobs"
+                        ] = prometheus_jobs
+                        self.update_db_2(
+                            "nsrs",
+                            nsr_id,
+                            db_nsr_update,
+                        )
 
+                        for job in prometheus_jobs:
+                            self.db.set_one(
+                                "prometheus_jobs",
+                                {"job_name": ""},
+                                job,
+                                upsert=True,
+                                fail_on_empty=False,
+                            )
             db_nsr_update[
                 "detailed-status"
             ] = ""  # "scaled {} {}".format(scaling_group, scaling_type)
@@ -7237,6 +7309,12 @@ class NsLcm(LcmBase):
                 error_description_nslcmop = None
                 nslcmop_operation_state = "COMPLETED"
                 db_nslcmop_update["detailed-status"] = "Done"
+                if scaling_type == "SCALE_IN" and prom_job_name is not None:
+                    self.db.del_one(
+                        "prometheus_jobs",
+                        {"job_name": prom_job_name},
+                        fail_on_empty=False,
+                    )
 
             self._write_op_status(
                 op_id=nslcmop_id,