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app.py
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app.py
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import sys
import pathlib
import os
sys.path.append(str(pathlib.Path().absolute()))
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager
from celery import Celery
def make_celery(app):
celery = Celery(
app.import_name,
backend="redis://localhost:6379",
broker="redis://localhost:6379",
)
celery.conf.update(app.config)
class ContextTask(celery.Task):
def __call__(self, *args, **kwargs):
with app.app_context():
return self.run(*args, **kwargs)
celery.Task = ContextTask
return celery
app = Flask(__name__)
celery = make_celery(app)
celery.conf.beat_schedule = {
"policy-stats": {
"task": "app.policy_stats",
"schedule": 30.0,
"options": {"queue": "celery1"},
},
"check-policy-schedule": {
"task": "app.check_policy_schedule",
"schedule": 60.0,
"options": {"queue": "celery2"},
},
"policy-changes": {
"task": "app.policy_changes",
"schedule": 60.0,
"options": {"queue": "celery3"},
},
"check-active-devices": {
"task": "app.check_active_devices",
"schedule": 30.0,
"options": {"queue": "celery4"},
},
}
app.config.update(DEBUG=True, SECRET_KEY=b"ACEDEJEADEJE")
app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///database/database.db"
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
db = SQLAlchemy(app)
login_manager = LoginManager()
login_manager.init_app(app)
from views import *
from datetime import datetime
from net import Connection
@celery.task
def check_policy_schedule():
print("EXECUTING POLICY SCHEDULE")
policy_schedules = InterfacePolicySchedule.query.all()
now = datetime.today()
week_day = now.isoweekday()
print("—X— Day: {}, Hour: {}, Minute: {}".format(week_day, now.hour, now.minute))
for policy_schedule in policy_schedules:
print(
"—Z— Day: {}, Hour: {} Minute: {}".format(
policy_schedule.day,
policy_schedule.time.hour,
policy_schedule.time.minute,
)
)
try:
if (
policy_schedule.day
and policy_schedule.time
and policy_schedule.time.hour == now.hour
and policy_schedule.time.minute == now.minute
and policy_schedule.day == week_day
):
interface = policy_schedule.interface
policy = Policy.query.get(policy_schedule.policy_id)
connection = Connection(
host=interface.device.host,
username=interface.device.ssh_username,
password=interface.device.ssh_password,
)
commands = connection.generate_policy_to_int(policy, interface)
was_succesful = connection.check_policy_interface(
interface.name, policy.name
)
if commands and was_succesful == True:
text_commands = ""
for command in commands:
text_commands = text_commands + "\n" + command
new_log = Log(
name="Policy Update",
description="{} had an scheduled policy change ({} -> {})".format(
interface.name, interface.policy.name, policy.name
),
commands=text_commands,
type="scheduled_policy_change",
)
interface.device.logs.append(new_log)
interface.policy_id = policy.id
interface.policy = policy
interface.update()
except Exception as e:
print(e)
continue
@celery.task
def policy_changes():
print("EXECUTING POLICY CHANGES")
policies_changed = Policy.query.filter(Policy.changed == True)
if policies_changed:
for policy in policies_changed:
policy.changed = False
policy.update()
for interface in policy.interfaces:
try:
connection = Connection(
host=interface.device.host,
username=interface.device.ssh_username,
password=interface.device.ssh_password,
)
commands = connection.generate_policy_to_int(policy, interface)
was_succesful = connection.check_policy_interface(
interface.name, policy.name
)
if commands and was_succesful == True:
text_commands = ""
for command in commands:
text_commands = text_commands + "\n" + command
new_log = Log(
name="Policy Update",
description="{} had a policy update ({} -> updated {})".format(
interface.name, interface.policy.name, policy.name
),
commands=text_commands,
type="policy_update",
)
interface.device.logs.append(new_log)
interface.policy_id = policy.id
interface.policy = policy
interface.update()
except Exception as e:
print(e)
continue
@celery.task
def policy_stats():
try:
print("EXECUTING POLICY STATS")
interfaces = Interface.query.filter(Interface.policy_id != None).all()
for interface in interfaces:
device = interface.device
router = Connection(
device.host, username=device.ssh_username, password=device.ssh_password,
)
snapshot = router.stats_policy_interface(interface.name)
if snapshot["success"] == True and ("classes" in snapshot):
for class_name, stats in snapshot["classes"].items():
interface.policy_stats.append(
Stat(
created_on=datetime.now(),
policy_name=snapshot["output_policy"],
class_name=stats["class_name"],
offered_rate=int(stats["offered_rate"]),
drop_rate=int(stats["drop_rate"]),
)
)
interface.update()
except Exception as e:
print(e)
@celery.task
def check_active_devices():
print("EXECUTING CHECK ACTIVE DEVICES")
devices = Device.query.all()
for device in devices:
connection = Connection(
device.host, username=device.ssh_username, password=device.ssh_password
)
if connection.try_connection() == "success":
device.state = "active"
else:
device.state = "inactive"
device.update()