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cloudWatcher.py
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cloudWatcher.py
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from distutils.log import debug
import sys
import time
import json
import random
import pymongo
import argparse
import requests
import configparser
from datetime import datetime
from influxdb import InfluxDBClient
import machines
import tasks
DIV = "_"
DIV1 = "-"
DIV2 = "/"
MANAGER_ID = None
CONFIG_FILE = "./config.ini"
config = configparser.ConfigParser()
config.read(CONFIG_FILE)
cw_config = config["CLOUDWATCHER"]
VERBOSE = True
VERY_VERBOSE = False
VERBOSE = True if VERY_VERBOSE else VERBOSE
client = pymongo.MongoClient("MONGODB_URL")
DB = client.cloudWatcher
COLLECTION = DB.report
# instantiate influxdb client
in_config = config["INFLUXDB"]
influxdb_client = InfluxDBClient(in_config["host"], in_config["port"], in_config["username"], in_config["password"], in_config["database"])
class InfluxDBPoint:
"A class representing a measurement point, which can yield an InfluxDB compatible JSON"
def __init__(self, fields, tags):
self.tags = tags
self.fields = fields
self.timestamp = time.strftime('%Y-%m-%dT%H:%M:%SZ')
def to_influx_point(self):
r = {}
r['tags'] = self.tags
r['fields'] = self.fields
r['time'] = self.timestamp
r['measurement'] = 'measurement'
return r
def debug_print(*args, **kwargs):
if kwargs.get("verbose", None) is None:
kwargs["verbose"] = VERBOSE
if MANAGER_ID is None:
machines.debug_print("* cloudWatcher -", *args, **kwargs)
else:
machines.debug_print("* cloudWatcher > {} -".format(MANAGER_ID), *args, **kwargs)
def parse_results(results):
parsed = results
if results is not None:
if type(results) is list:
parsed = []
for e in results:
parsed.append(parse_results(e))
elif type(results) is dict:
parsed = {}
for k,v in results.items():
parsed[k] = parse_results(v)
else:
try:
parsed = results.to_dict()
except:
parsed = results
return parsed
def set_configuration(config_file=CONFIG_FILE, *, verbose=VERBOSE):
global config
global cw_config
debug_print("Setting configuration file to {}".format(config_file), verbose=verbose)
config.read(config_file)
cw_config = config["CLOUDWATCHER"]
def reset_by_manager(manager_id, clouds=json.loads(cw_config["clouds"]), *, verbose=VERBOSE, very_verbose=VERY_VERBOSE):
debug_print("Resetting cloudWatcher manager {} network".format(manager_id), verbose=verbose)
metadata = {
"application":"cloudwatcher",
"cloudwatcher-type":"probe",
"cloudwatcher-manager":manager_id
}
report = machines.remove_all_machines(metadata, clouds, verbose=very_verbose)
debug_print("Machines removed", verbose=verbose)
return report
def reset(clouds=json.loads(cw_config["clouds"]), *, verbose=VERBOSE, very_verbose=VERY_VERBOSE):
debug_print("Resetting cloudWatcher network", verbose=verbose)
metadata = {
"application":"cloudwatcher"
}
report = machines.remove_all_machines(metadata, clouds, verbose=very_verbose)
report.append(machines.clean_clouds(clouds, verbose=very_verbose))
debug_print("Machines removed, Floating IPs released, Security groups removed, Keys removed", verbose=verbose)
return report
def setup_managers(manager_type="cw-manager", clouds=json.loads(cw_config["clouds"]), count=int(cw_config["managers"]), *, verbose=VERBOSE, very_verbose=VERY_VERBOSE, name=None):
debug_print("Setting up cloudWatcher managers", verbose=verbose)
debug_print("Creating {} managers for each cloud in {}".format(count, clouds), verbose=verbose)
if name is None:
name = "cloudWatcher"+DIV1+"manager"+DIV+"<CLOUD>"+DIV+"<INC_<CLOUD>>"
specs = {
"clouds": {
},
"metadata": {
"application":"cloudwatcher",
"cloudwatcher-type":"manager",
},
"type": manager_type
}
threads = []
for cloud in clouds:
specs["clouds"] = {cloud: count}
named_specs = {name: specs}
t = machines.ThreadWithReturnValue(target=machines.add_machines, args=(named_specs,), kwargs={"verbose": very_verbose, "verbose_script": very_verbose})
threads.append((cloud,t))
t.start()
reports = {}
for c,t in threads:
if c not in reports:
reports[c] = {}
if manager_type not in reports[c]:
reports[c][manager_type] = []
reports[c][manager_type].append(t.join())
reports = parse_results(reports)
debug_print("Managers created", verbose=verbose)
return reports
def setup(manager_id, clouds=json.loads(cw_config["clouds"]), count=int(cw_config["count"]), types=json.loads(cw_config["types"]), *, verbose=VERBOSE, very_verbose=VERY_VERBOSE):
debug_print("Setting up cloudWatcher manager {}".format(manager_id), verbose=verbose)
debug_print("Creating {} machines per type in {} for each cloud in {}".format(count, types, clouds), verbose=verbose)
name = "cloudWatcher"+DIV1+"probe"+DIV+((manager_id.replace("cloudWatcher"+DIV1+"manager"+DIV,"")).replace(DIV,DIV2))+DIV+"<INC_<CLOUD>>"+DIV+"<CLOUD>"
specs = {
"clouds": {
},
"metadata": {
"application":"cloudwatcher",
"cloudwatcher-type":"probe",
"cloudwatcher-manager":manager_id
}
}
threads = []
for cloud in clouds:
specs["clouds"] = {cloud: count}
for type in types:
typed_name = name+DIV+type
named_specs = {typed_name: specs}
named_specs[typed_name]["type"] = type
t = machines.ThreadWithReturnValue(target=machines.add_machines, args=(named_specs,), kwargs={"verbose": verbose, "verbose_script": False})
threads.append((cloud,type,t))
t.start()
reports = {}
for c,type,t in threads:
if c not in reports:
reports[c] = {}
if type not in reports[c]:
reports[c][type] = []
reports[c][type].append(t.join())
reports = parse_results(reports)
debug_print("Machines created", verbose=verbose)
return reports
def start_manager(manager, config_file="./config.ini", clouds=json.loads(cw_config["clouds"]), managers=int(cw_config["managers"]), delta=float(cw_config["delta"]), verbose=VERBOSE, very_verbose=VERY_VERBOSE):
start_time = time.time()
manager_name = manager.name
metadata = manager.metadata
while True:
debug_print("Starting manager {}".format(manager_name), verbose=verbose)
v_option = "-vv" if very_verbose else ("-v" if verbose else "-nv")
time.sleep(60*random.random())
machines.exec_script_machines("start", {"name": manager_name}, clouds, {"<CONFIG-FILE>": config_file,
"<VERBOSE-OPTION>": v_option,
"<RESET-OPTION>": "-r",
"<MANAGER>": manager_name}, timeout_cmd=0, hide=False, verbose=very_verbose)
debug_print("Manager {} stopped, delta {}, start_exec {}, time {}, diff {}".format(manager.name, delta, start_time, time.time(), time.time()-start_time), verbose=verbose)
if delta != float("inf") and time.time()-start_time > delta:
debug_print("Manager {} finished".format(manager.name), verbose=verbose)
break
else:
while True:
try:
debug_print("+++ Manager {} restarting".format(manager.name), verbose=verbose)
reset_by_manager(manager_name, clouds, verbose=verbose, very_verbose=very_verbose)
debug_print("--- Manager {}'s probes removed".format(manager.name), verbose=verbose)
print(machines.remove_all_machines({"name": manager_name}, [metadata["cloud"]], verbose=very_verbose))
debug_print("--- Manager {} removed".format(manager.name), verbose=verbose)
setup_managers(manager_type=metadata["type"], clouds=[metadata["cloud"]], count=1, verbose=verbose, very_verbose=very_verbose, name=manager_name)
debug_print("--- Manager {} recreated".format(manager.name), verbose=verbose)
break
except Exception as e:
debug_print("Error while restarting manager {}: {}".format(manager.name, e), verbose=verbose)
time.sleep(60)
def start(config_file="./config.ini", clouds=json.loads(cw_config["clouds"]), count=int(cw_config["count"]), delta=float(cw_config["delta"]), verbose=VERBOSE, very_verbose=VERY_VERBOSE):
debug_print("Starting cloudWatcher's managers", verbose=verbose)
managers = machines.get_servers({"application":"cloudwatcher","cloudwatcher-type":"manager"}, clouds, verbose=very_verbose)
threads = []
for manager in managers:
t = machines.ThreadWithReturnValue(target=start_manager, args=(manager,config_file,clouds,count,delta), kwargs={"verbose": verbose, "very_verbose": very_verbose})
threads.append(t)
t.start()
debug_print("All managers started", verbose=verbose)
for t in threads:
t.join()
def perform_task(task, machine, verbose=VERBOSE, very_verbose=VERY_VERBOSE):
try:
t = machines.ThreadWithReturnValue(target=getattr(tasks, task["function"]["name"]), args=(machine,task["args"]), kwargs={"verbose": verbose, "very_verbose": very_verbose})
t.start()
return t
except Exception as e:
print("Error performing task {} on machine {}: {}".format(task["function"]["name"], machine.name, e))
return {}
def probe(machine, *, verbose=VERBOSE, very_verbose=VERY_VERBOSE):
results = {}
debug_print("Probing machine {}".format(machine.name), verbose=very_verbose)
results["started"] = datetime.now().isoformat()
tasks = machines.get_tasks(machine.name)
if tasks is not None:
debug_print("Tasks found for machine {}: {}".format(machine.name, tasks), verbose=very_verbose)
i = 1
for step in tasks:
debug_print("Running step {} for machine {}".format(i,machine.name), verbose=very_verbose)
i+=1
threads = []
for task in step:
if "args" not in task:
task["args"] = []
t = perform_task(task, machine, verbose=verbose, very_verbose=very_verbose)
threads.append((t,task["name"]))
for t,task in threads:
results[task] = t.join()
else:
debug_print("Error: No tasks for machine {}".format(machine.name), verbose=verbose)
results["finished"] = datetime.now().isoformat()
results["machine"] = machine.name
results = parse_results(results)
return results
def extract_metrics(report, verbose=VERBOSE, very_verbose=VERY_VERBOSE):
"extract relevant information from the given report, to be inserted in InfluxDB"
if not 'reports' in report:
return []
# find the origin of the metrics and the region to which it belongs
origin = report['origin']
origin_cloud = "unknown"
for cloud in clouds:
if cloud in origin:
origin_cloud = cloud
response = []
for cloud in clouds:
if not cloud in report['reports']:
continue
for cwprobe in report['reports'][cloud].keys():
for cwkey, cwvalue in report['reports'][cloud][cwprobe].items():
if not cwvalue:
continue
tags = {
'origin_cloud': origin_cloud,
'destination_cloud': cloud,
'metric': cwkey
}
fields = {}
if cwkey == 'fio':
debug_print("**************** FIO", verbose=verbose)
try:
fields['read_iops_mean'] = cwvalue['jobs']['read']['iops_mean']
fields['read_iops_max'] = cwvalue['jobs']['read']['iops_max']
fields['read_iops_min'] = cwvalue['jobs']['read']['iops_min']
fields['write_iops_mean'] = cwvalue['jobs']['write']['iops_mean']
fields['write_iops_max'] = cwvalue['jobs']['write']['iops_max']
fields['write_iops_min'] = cwvalue['jobs']['write']['iops_min']
fields['read_bw_mean'] = cwvalue['jobs']['read']['bw_mean']
fields['read_bw_max'] = cwvalue['jobs']['read']['bw_max']
fields['read_bw_min'] = cwvalue['jobs']['read']['bw_min']
fields['write_bw_mean'] = cwvalue['jobs']['write']['bw_mean']
fields['write_bw_max'] = cwvalue['jobs']['write']['bw_max']
fields['write_bw_min'] = cwvalue['jobs']['write']['bw_min']
point = InfluxDBPoint(fields, tags)
debug_print(point.to_influx_point(), verbose=verbose)
response.append(point.to_influx_point())
except KeyError:
continue
elif cwkey == 'network':
debug_print("**************** NETWORK", verbose=verbose)
try:
fields['latency'] = cwvalue['latency']['avg']
fields['upload_bandwidth'] = cwvalue['bandwidth']['upload']['avg']
fields['download_bandwidth'] = cwvalue['bandwidth']['download']['avg']
point = InfluxDBPoint(fields, tags)
debug_print(point.to_influx_point(), verbose=verbose)
response.append(point.to_influx_point())
except KeyError:
continue
elif cwkey == 'probe':
debug_print("**************** PROBE", verbose=verbose)
try:
fields['success'] = cwvalue['success']
fields['time'] = cwvalue['time']
point = InfluxDBPoint(fields, tags)
debug_print(point.to_influx_point(), verbose=verbose)
response.append(point.to_influx_point())
except KeyError:
continue
elif cwkey == 'remake':
debug_print("**************** REMAKE", verbose=verbose)
try:
fields['creation_success'] = cwvalue['add']['create']['success']
fields['creation_time'] = cwvalue['add']['create']['time']
fields['setup_success'] = cwvalue['add']['setup']['success']
fields['setup_time'] = cwvalue['add']['setup']['time']
fields['first_access_success'] = cwvalue['add']['first_access']['success']
fields['first_access_time'] = cwvalue['add']['first_access']['time']
fields['deletion_success'] = cwvalue['delete']['success']
fields['deletion_time'] = cwvalue['delete']['time']
point = InfluxDBPoint(fields, tags)
debug_print(point.to_influx_point(), verbose=verbose)
response.append(point.to_influx_point())
except KeyError:
continue
return response
def publish_report(report, *, verbose=VERBOSE, very_verbose=VERY_VERBOSE):
debug_print("Publishing report", verbose=verbose)
try:
requests.post("http://DASHBOARD_URL/report", json=report)
except Exception as e:
debug_print("Error publishing report: {}".format(e))
try:
COLLECTION.insert_one(report)
except Exception as e:
debug_print("Error inserting report: {}".format(e))
try:
debug_print("Inserting report in InfluxDB", verbose=verbose)
debug_print(report, verbose=verbose)
influxdb_measurement = in_config['measurement']
debug_print("Extracting metrics", verbose=verbose)
extracted_metrics = extract_metrics(report)
debug_print(extracted_metrics, verbose=verbose)
for metric in extracted_metrics:
metric.update({'measurement': influxdb_measurement})
debug_print(extracted_metrics, verbose=verbose)
debug_print("Writing to InfluxDB", verbose=verbose)
influxdb_client.write_points(extracted_metrics)
debug_print("Written to InfluxDB", verbose=verbose)
except Exception as e:
debug_print("Error writing to InfluxDB: {}".format(e))
time.sleep(1)
def check_slo(slo, data, *, verbose=VERBOSE, very_verbose=VERY_VERBOSE):
violations = {}
if slo is not None and slo != {} and data is not None and data != {}:
for k,v in slo.items():
if k in data:
if type(data[k]) is dict:
check = check_slo(v, data[k], verbose=verbose, very_verbose=very_verbose)
if check is not None and check != {}:
violations[k] = check
else:
if "max" in v:
levels = v["max"]
if type(v["max"]) is not list:
levels = [[v["max"], "CRITICAL"]]
levels.sort(key=lambda x: x[0], reverse=True)
for level,severity in levels:
if data[k] > level:
violations[k] = {"severity": severity, "value": data[k], "max": level}
if "min" in v:
levels = v["min"]
if type(v["min"]) is not list:
levels = [(v["min"], "CRITICAL")]
levels.sort(key=lambda x: x[0])
for level,severity in levels:
if data[k] < level:
violations[k] = {"severity": severity, "value": data[k], "min": level}
return violations
def process_results(manager_id, results, *, verbose=VERBOSE, very_verbose=VERY_VERBOSE):
report = {"reports": {}, "slo-violations": {}, "raw": results, "timestamp": datetime.now().isoformat(), "origin": manager_id}
for cloud,types in results.items():
for type,reports in types.items():
for task in reports:
if cloud not in report["reports"]:
report["reports"][cloud] = {}
if type not in report["reports"][cloud]:
report["reports"][cloud][type] = {}
machine = task["machine"]
for task_name,task_report in task.items():
if task_name not in ["machine","started","finished"]:
if task_name not in report["reports"][cloud][type]:
report["reports"][cloud][type][task_name] = []
if task_report is not None and task_report != {}:
report["reports"][cloud][type][task_name].append(task_report)
task_data = machines.get_task(type=type, name=task_name)
if task_data is not None and "slo" in task_data["function"]:
violations = check_slo(task_data["function"]["slo"], task_report, verbose=verbose, very_verbose=very_verbose)
if violations != {}:
if cloud not in report["slo-violations"]:
report["slo-violations"][cloud] = {}
if type not in report["slo-violations"][cloud]:
report["slo-violations"][cloud][type] = {}
if task_name not in report["slo-violations"][cloud][type]:
report["slo-violations"][cloud][type][task_name] = []
violations["source"] = machine
report["slo-violations"][cloud][type][task_name].append(violations)
for cloud,types in report["reports"].items():
for type,task_reports in types.items():
for task_name,task_report in task_reports.items():
if task_name not in ["machine","started","finished"]:
task = machines.get_task(type=type, name=task_name)
if task is not None and task_report is not None and task_report != []:
report["reports"][cloud][type][task_name] = getattr(tasks, task["aggregate"]["name"])(task_report, verbose=verbose, very_verbose=very_verbose)
if "slo" in task["aggregate"]:
violations = check_slo(task["aggregate"]["slo"], report["reports"][cloud][type][task_name], verbose=verbose, very_verbose=very_verbose)
if violations != {}:
if cloud not in report["slo-violations"]:
report["slo-violations"][cloud] = {}
if type not in report["slo-violations"][cloud]:
report["slo-violations"][cloud][type] = {}
if task_name not in report["slo-violations"][cloud][type]:
report["slo-violations"][cloud][type][task_name] = []
violations["source"] = "aggregate"
report["slo-violations"][cloud][type][task_name].append(violations)
publish_report(report, verbose=verbose, very_verbose=very_verbose)
return report
def run(manager_id, clouds=json.loads(cw_config["clouds"]), delta=float(cw_config["delta"]), types=json.loads(cw_config["types"]), count=int(cw_config["count"]), max_it=int(cw_config["max_it"]), wait=int(cw_config["wait"]), wait_it=int(cw_config["wait_it"]), *, verbose=VERBOSE, very_verbose=VERY_VERBOSE):
debug_print("Running cloudWatcher manager {} for {} seconds".format(manager_id, delta), verbose=verbose)
start_time = time.time()
debug_print("Running probes of manager {} for {} seconds".format(manager_id, delta), verbose=verbose)
while True:
for i in range(max_it):
debug_print("Iteration {} of {}".format(i+1, max_it), verbose=verbose)
machines_list = machines.get_servers({"application":"cloudwatcher", "cloudwatcher-type":"probe", "cloudwatcher-manager":manager_id}, clouds, verbose=very_verbose)
if len(machines_list) < count*len(clouds)*len(types):
debug_print("+++ Not enough machines to run the tests. Resetting", verbose=verbose)
reset_by_manager(manager_id, clouds, verbose=verbose, very_verbose=very_verbose)
setup(manager_id, clouds, count, types, verbose=verbose, very_verbose=very_verbose)
threads = []
for machine in machines_list:
t = machines.ThreadWithReturnValue(target=probe, args=(machine,), kwargs={"verbose": verbose, "very_verbose": very_verbose})
threads.append((t, machine.metadata["cloud"], machine.metadata["type"]))
t.start()
results = {}
for t,cloud,type in threads:
val = t.join()
if cloud not in results:
results[cloud] = {}
if type not in results[cloud]:
results[cloud][type] = []
results[cloud][type].append(val)
results = parse_results(results)
process_results(manager_id, results, verbose=verbose)
time.sleep(wait_it)
time.sleep(wait)
if delta != float("inf"):
if time.time() - start_time > delta:
break
debug_print("cloudWatcher manager {} finished".format(manager_id), verbose=verbose)
if __name__ == "__main__":
clouds = json.loads(cw_config["clouds"])
count = int(cw_config["count"])
managers = int(cw_config["managers"])
types = json.loads(cw_config["types"])
delta = float(cw_config["delta"])
max_it = int(cw_config["max_it"])
wait = int(cw_config["wait"])
wait_it = int(cw_config["wait_it"])
parser = argparse.ArgumentParser(description="CloudWatcher")
parser.add_argument("-c", "--config", help="Configuration file", default=CONFIG_FILE)
parser.add_argument("-nv", "--not-verbose", help="Verbose mode", action="store_true")
parser.add_argument("-v", "--verbose", help="Verbose mode", action="store_true")
parser.add_argument("-vv", "--very-verbose", help="Very verbose mode", action="store_true")
parser.add_argument("-r", "--reset", help="Reset", action="store_true")
parser.add_argument("-cl", "--clean", help="Release Floating IPs, remove keys and security groups", action="store_true")
# subparsers for commands
subparsers = parser.add_subparsers(help="Subcommands", dest="command")
# subparser for manager
parser_manager = subparsers.add_parser("manager", help="Run a cloudWatcher manager")
parser_manager.add_argument("-id", "--manager-id", help="Manager ID", default="cloudWatcher-manager")
args = parser.parse_args()
if args.not_verbose:
VERBOSE = False
if args.very_verbose:
VERY_VERBOSE = True
VERBOSE = True
if args.verbose:
VERBOSE = True
if VERBOSE:
debug_print("Verbose mode", verbose=True)
else:
debug_print("Not verbose mode", verbose=True)
if VERY_VERBOSE:
debug_print("Very verbose mode", verbose=True)
set_configuration(args.config, verbose=VERBOSE)
if args.command == "manager":
MANAGER_ID = args.manager_id
if args.reset:
reset_by_manager(MANAGER_ID, clouds=clouds, verbose=VERBOSE, very_verbose=VERY_VERBOSE)
setup(args.manager_id, clouds, count, types, verbose=VERBOSE, very_verbose=VERY_VERBOSE)
run(args.manager_id, clouds, delta, types, count, max_it, wait, wait_it, verbose=VERBOSE, very_verbose=VERY_VERBOSE)
else:
debug_print("cloudWatcher starter", verbose=VERBOSE)
if args.clean:
debug_print("Cleaning...", verbose=VERBOSE)
reset(clouds=clouds, verbose=VERBOSE, very_verbose=VERY_VERBOSE)
debug_print("Cleanup completed", verbose=VERBOSE)
sys.exit(0)
if args.reset:
reset(clouds=clouds, verbose=VERBOSE, very_verbose=VERY_VERBOSE)
start_time = time.time()
while True:
machines.setup_clouds(clouds, (count*len(types)*len(clouds)*managers)+managers, verbose=VERY_VERBOSE)
debug_print("Setup managers", verbose=VERBOSE)
setup_managers(clouds=clouds, count=managers, verbose=VERBOSE, very_verbose=VERY_VERBOSE)
debug_print("Start managers", verbose=VERBOSE)
start(args.config, clouds=clouds, count=managers, delta=delta, verbose=VERBOSE, very_verbose=VERY_VERBOSE)
debug_print("cloudWatcher reset", verbose=VERBOSE)
reset(clouds=clouds, verbose=VERBOSE, very_verbose=VERY_VERBOSE)
if delta != float("inf"):
if time.time() - start_time > delta:
break
debug_print("cloudWatcher finisched after {} (delta: {})".format(time.time()-start_time,delta), verbose=VERBOSE)