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implemented 'LEASE_RENEWAL_PERIOD' variable

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Oscar Krause 2023-01-02 18:57:41 +01:00
parent a3e089a3d5
commit 34662e6612
2 changed files with 20 additions and 15 deletions
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11
README.md
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@ -283,19 +283,24 @@ After first success you have to replace `--issue` with `--renew`.
# Configuration
| Variable | Default | Usage |
|---------------------|----------------------------------------|-------------------------------------------------------------------------------------|
|------------------------|----------------------------------------|------------------------------------------------------------------------------------------------------|
| `DEBUG` | `false` | Toggles `fastapi` debug mode |
| `DLS_URL` | `localhost` | Used in client-token to tell guest driver where dls instance is reachable |
| `DLS_PORT` | `443` | Used in client-token to tell guest driver where dls instance is reachable |
| `LEASE_EXPIRE_DAYS` | `90` | Lease time in days |
| `LEASE_RENEWAL_PERIOD` | `0.15` | The percentage of the lease period that must elapse before a licensed client can renew a license \*1 |
| `DATABASE` | `sqlite:///db.sqlite` | See [official SQLAlchemy docs](https://docs.sqlalchemy.org/en/14/core/engines.html) |
| `CORS_ORIGINS` | `https://{DLS_URL}` | Sets `Access-Control-Allow-Origin` header (comma separated string) \* |
| `CORS_ORIGINS` | `https://{DLS_URL}` | Sets `Access-Control-Allow-Origin` header (comma separated string) \*2 |
| `SITE_KEY_XID` | `00000000-0000-0000-0000-000000000000` | Site identification uuid |
| `INSTANCE_REF` | `00000000-0000-0000-0000-000000000000` | Instance identification uuid |
| `INSTANCE_KEY_RSA` | `<app-dir>/cert/instance.private.pem` | Site-wide private RSA key for singing JWTs |
| `INSTANCE_KEY_PUB` | `<app-dir>/cert/instance.public.pem` | Site-wide public key |
\* Always use `https`, since guest-drivers only support secure connections!
\*1 For example, if the lease period is one day and the renewal period is 20%, the client attempts to renew its license
every 4.8 hours. If network connectivity is lost, the loss of connectivity is detected during license renewal and the
client has 19.2 hours in which to re-establish connectivity before its license expires.
\*2 Always use `https`, since guest-drivers only support secure connections!
# Setup (Client)

4
app/main.py
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@ -40,6 +40,7 @@ INSTANCE_KEY_RSA = load_key(str(env('INSTANCE_KEY_RSA', join(dirname(__file__),
INSTANCE_KEY_PUB = load_key(str(env('INSTANCE_KEY_PUB', join(dirname(__file__), 'cert/instance.public.pem'))))
TOKEN_EXPIRE_DELTA = relativedelta(hours=1) # days=1
LEASE_EXPIRE_DELTA = relativedelta(days=int(env('LEASE_EXPIRE_DAYS', 90)))
LEASE_RENEWAL_PERIOD = float(env('LEASE_RENEWAL_PERIOD', 0.15))
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)
@ -365,8 +366,7 @@ async def leasing_v1_lessor(request: Request):
"ref": scope_ref,
"created": cur_time.isoformat(),
"expires": expires.isoformat(),
# The percentage of the lease period that must elapse before a licensed client can renew a license
"recommended_lease_renewal": 0.15,
"recommended_lease_renewal": LEASE_RENEWAL_PERIOD,
"offline_lease": "true",
"license_type": "CONCURRENT_COUNTED_SINGLE"
}