nvidia/fastapi-dls
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implemented "lease_renewal" attribute as calculated value within what period of time the license must be renewed

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Oscar Krause 2023-01-17 11:49:56 +01:00
parent 742fa07ed4
commit 3c19fc9d5b
2 changed files with 21 additions and 4 deletions
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9
app/main.py
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@ -9,7 +9,7 @@ from dotenv import load_dotenv
from fastapi import FastAPI
from fastapi.requests import Request
from json import loads as json_loads
from datetime import datetime
from datetime import datetime, timedelta
from dateutil.relativedelta import relativedelta
from calendar import timegm
from jose import jws, jwk, jwt, JWTError
@ -43,6 +43,7 @@ INSTANCE_KEY_PUB = load_key(str(env('INSTANCE_KEY_PUB', join(dirname(__file__),
TOKEN_EXPIRE_DELTA = relativedelta(days=int(env('TOKEN_EXPIRE_DAYS', 1)), hours=int(env('TOKEN_EXPIRE_HOURS', 0)))
LEASE_EXPIRE_DELTA = relativedelta(days=int(env('LEASE_EXPIRE_DAYS', 90)), hours=int(env('LEASE_EXPIRE_HOURS', 0)))
LEASE_RENEWAL_PERIOD = float(env('LEASE_RENEWAL_PERIOD', 0.15))
LEASE_RENEWAL_DELTA = timedelta(days=int(env('LEASE_EXPIRE_DAYS', 90)), hours=int(env('LEASE_EXPIRE_HOURS', 0)))
CORS_ORIGINS = str(env('CORS_ORIGINS', '')).split(',') if (env('CORS_ORIGINS')) else [f'https://{DLS_URL}']
jwt_encode_key = jwk.construct(INSTANCE_KEY_RSA.export_key().decode('utf-8'), algorithm=ALGORITHMS.RS256)
@ -151,7 +152,8 @@ async def _origins(request: Request, leases: bool = False):
for origin in session.query(Origin).all():
x = origin.serialize()
if leases:
x['leases'] = list(map(lambda _: _.serialize(), Lease.find_by_origin_ref(db, origin.origin_ref)))
serialize = dict(renewal_period=LEASE_RENEWAL_PERIOD, renewal_delta=LEASE_RENEWAL_DELTA)
x['leases'] = list(map(lambda _: _.serialize(**serialize), Lease.find_by_origin_ref(db, origin.origin_ref)))
response.append(x)
session.close()
return JSONr(response)
@ -168,7 +170,8 @@ async def _leases(request: Request, origin: bool = False):
session = sessionmaker(bind=db)()
response = []
for lease in session.query(Lease).all():
x = lease.serialize()
serialize = dict(renewal_period=LEASE_RENEWAL_PERIOD, renewal_delta=LEASE_RENEWAL_DELTA)
x = lease.serialize(**serialize)
if origin:
lease_origin = session.query(Origin).filter(Origin.origin_ref == lease.origin_ref).first()
if lease_origin is not None:

16
app/orm.py
View File

@ -81,7 +81,7 @@ class Lease(Base):
def __repr__(self):
return f'Lease(origin_ref={self.origin_ref}, lease_ref={self.lease_ref}, expires={self.lease_expires})'
def serialize(self) -> dict:
def serialize(self, renewal_period: float, renewal_delta: datetime.timedelta) -> dict:
return {
'lease_ref': self.lease_ref,
'origin_ref': self.origin_ref,
@ -89,6 +89,7 @@ class Lease(Base):
'lease_created': self.lease_created.isoformat(),
'lease_expires': self.lease_expires.isoformat(),
'lease_updated': self.lease_updated.isoformat(),
'lease_renewal': Lease.calculate_renewal(renewal_period, renewal_delta),
}
@staticmethod
@ -156,6 +157,19 @@ class Lease(Base):
session.close()
return deletions
@staticmethod
def calculate_renewal(renewal_period: float, delta: datetime.timedelta):
"""
LEASE_RENEWAL_PERIOD=0.2 # 20%
delta = datetime.timedelta(days=1)
renew = delta.total_seconds() * LEASE_RENEWAL_PERIOD
renew = timedelta(seconds=renew)
expires = delta - renew # 19.2
"""
renew = delta.total_seconds() * renewal_period
renew = datetime.timedelta(seconds=renew)
return delta - renew
def init(engine: Engine):
tables = [Origin, Lease]