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implemented ha endpoints and configuration
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Oscar Krause
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README.md
48
README.md
@ -32,6 +32,11 @@ Tested with Ubuntu 22.10 (from Proxmox templates), actually its consuming 100mb
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- Make sure your timezone is set correct on you fastapi-dls server and your client
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**HA Setup Notes**
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- make sure you're using same configuration on each node
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- use same `instance.private.pem` and `instance.private.key` on each node
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## Docker
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Docker-Images are available here:
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@ -368,31 +373,36 @@ After first success you have to replace `--issue` with `--renew`.
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# Configuration
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| Variable | Default | Usage |
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|------------------------|----------------------------------------|------------------------------------------------------------------------------------------------------|
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| `DEBUG` | `false` | Toggles `fastapi` debug mode |
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| `DLS_URL` | `localhost` | Used in client-token to tell guest driver where dls instance is reachable |
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| `DLS_PORT` | `443` | Used in client-token to tell guest driver where dls instance is reachable |
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| `TOKEN_EXPIRE_DAYS` | `1` | Client auth-token validity (used for authenticate client against api, **not `.tok` file!**) |
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| `LEASE_EXPIRE_DAYS` | `90` | Lease time in days |
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| `LEASE_RENEWAL_PERIOD` | `0.15` | The percentage of the lease period that must elapse before a licensed client can renew a license \*1 |
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| `DATABASE` | `sqlite:///db.sqlite` | See [official SQLAlchemy docs](https://docs.sqlalchemy.org/en/14/core/engines.html) \*2 |
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| `CORS_ORIGINS` | `https://{DLS_URL}` | Sets `Access-Control-Allow-Origin` header (comma separated string) \*3 |
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| `SITE_KEY_XID` | `00000000-0000-0000-0000-000000000000` | Site identification uuid |
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| `INSTANCE_REF` | `10000000-0000-0000-0000-000000000001` | Instance identification uuid |
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| `ALLOTMENT_REF` | `20000000-0000-0000-0000-000000000001` | Allotment identification uuid |
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| `INSTANCE_KEY_RSA` | `<app-dir>/cert/instance.private.pem` | Site-wide private RSA key for singing JWTs \*4 |
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| `INSTANCE_KEY_PUB` | `<app-dir>/cert/instance.public.pem` | Site-wide public key \*4 |
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| Variable | Default | Usage |
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|------------------------|----------------------------------------|--------------------------------------------------------------------------------------------------------------------|
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| `DEBUG` | `false` | Toggles `fastapi` debug mode |
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| `DLS_URL` | `localhost` | Used in client-token to tell guest driver where dls instance is reachable |
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| `DLS_PORT` | `443` | Used in client-token to tell guest driver where dls instance is reachable |
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| `HA_REPLICATE` | | `DLS_URL` + `DLS_PORT` of primary DLS instance, e.g. `dls-node:443` (for HA only **two** nodes are supported!) \*1 |
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| `HA_ROLE` | | `PRIMARY` or `SECONDARY` |
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| `TOKEN_EXPIRE_DAYS` | `1` | Client auth-token validity (used for authenticate client against api, **not `.tok` file!**) |
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| `LEASE_EXPIRE_DAYS` | `90` | Lease time in days |
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| `LEASE_RENEWAL_PERIOD` | `0.15` | The percentage of the lease period that must elapse before a licensed client can renew a license \*2 |
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| `DATABASE` | `sqlite:///db.sqlite` | See [official SQLAlchemy docs](https://docs.sqlalchemy.org/en/14/core/engines.html) \*3 |
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| `CORS_ORIGINS` | `https://{DLS_URL}` | Sets `Access-Control-Allow-Origin` header (comma separated string) \*4 |
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| `SITE_KEY_XID` | `00000000-0000-0000-0000-000000000000` | Site identification uuid |
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| `INSTANCE_REF` | `10000000-0000-0000-0000-000000000001` | Instance identification uuid |
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| `ALLOTMENT_REF` | `20000000-0000-0000-0000-000000000001` | Allotment identification uuid |
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| `INSTANCE_KEY_RSA` | `<app-dir>/cert/instance.private.pem` | Site-wide private RSA key for singing JWTs \*5 |
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| `INSTANCE_KEY_PUB` | `<app-dir>/cert/instance.public.pem` | Site-wide public key \*5 |
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\*1 For example, if the lease period is one day and the renewal period is 20%, the client attempts to renew its license
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\*1 If you want to use HA, this value should be point to `secondary` on `primary` and `primary` on `secondary`. Don't
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use same database for both instances!
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\*2 For example, if the lease period is one day and the renewal period is 20%, the client attempts to renew its license
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every 4.8 hours. If network connectivity is lost, the loss of connectivity is detected during license renewal and the
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client has 19.2 hours in which to re-establish connectivity before its license expires.
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\*2 Other databases than sqlite are only supported outside of Docker (because of missing drivers)
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\*3 Other databases than sqlite are only supported outside of Docker (because of missing drivers)
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\*2 Always use `https`, since guest-drivers only support secure connections!
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\*4 Always use `https`, since guest-drivers only support secure connections!
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\*3 If you recreate instance keys you need to **recreate client-token for each guest**!
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\*5 If you recreate instance keys you need to **recreate client-token for each guest**!
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# Setup (Client)
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113
app/main.py
113
app/main.py
@ -6,7 +6,7 @@ from os.path import join, dirname
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from os import getenv as env
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from dotenv import load_dotenv
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from fastapi import FastAPI
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from fastapi import FastAPI, BackgroundTasks
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from fastapi.requests import Request
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from json import loads as json_loads
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from datetime import datetime, timedelta
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@ -19,7 +19,7 @@ from starlette.responses import StreamingResponse, JSONResponse as JSONr, HTMLRe
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from sqlalchemy import create_engine
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from sqlalchemy.orm import sessionmaker
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from util import load_key, load_file
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from util import load_key, load_file, ha_replicate
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from orm import Origin, Lease, init as db_init, migrate
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load_dotenv('../version.env')
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@ -36,6 +36,7 @@ db_init(db), migrate(db)
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# everything prefixed with "INSTANCE_*" is used as "SERVICE_INSTANCE_*" or "SI_*" in official dls service
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DLS_URL = str(env('DLS_URL', 'localhost'))
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DLS_PORT = int(env('DLS_PORT', '443'))
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HA_REPLICATE, HA_ROLE = str(env('HA_REPLICATE', None)), str(env('HA_ROLE', None))
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SITE_KEY_XID = str(env('SITE_KEY_XID', '00000000-0000-0000-0000-000000000000'))
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INSTANCE_REF = str(env('INSTANCE_REF', '10000000-0000-0000-0000-000000000001'))
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ALLOTMENT_REF = str(env('ALLOTMENT_REF', '20000000-0000-0000-0000-000000000001'))
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@ -199,6 +200,36 @@ async def _client_token():
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cur_time = datetime.utcnow()
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exp_time = cur_time + CLIENT_TOKEN_EXPIRE_DELTA
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if HA_REPLICATE is not None and HA_ROLE.lower() == "secondary":
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return RedirectResponse(f'https://{HA_REPLICATE}/-/client-token')
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idx_port, idx_node = 0, 0
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def create_svc_port_set(port: int):
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idx = idx_port
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return {
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"idx": idx,
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"d_name": "DLS",
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"svc_port_map": [{"service": "auth", "port": port}, {"service": "lease", "port": port}]
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}
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def create_node_url(url: str, svc_port_set_idx: int):
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idx = idx_node
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return {"idx": idx, "url": url, "url_qr": url, "svc_port_set_idx": svc_port_set_idx}
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service_instance_configuration = {
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"nls_service_instance_ref": INSTANCE_REF,
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"svc_port_set_list": [create_svc_port_set(DLS_PORT)],
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"node_url_list": [create_node_url(DLS_URL, idx_port)]
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}
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idx_port += 1
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idx_node += 1
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if HA_REPLICATE is not None and HA_ROLE.lower() == "primary":
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SEC_URL, SEC_PORT, *invalid = HA_REPLICATE.split(':')
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service_instance_configuration['svc_port_set_list'].append(create_svc_port_set(SEC_PORT))
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service_instance_configuration['node_url_list'].append(create_node_url(SEC_URL, idx_port))
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payload = {
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"jti": str(uuid4()),
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"iss": "NLS Service Instance",
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@ -209,17 +240,7 @@ async def _client_token():
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"update_mode": "ABSOLUTE",
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"scope_ref_list": [ALLOTMENT_REF],
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"fulfillment_class_ref_list": [],
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"service_instance_configuration": {
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"nls_service_instance_ref": INSTANCE_REF,
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"svc_port_set_list": [
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{
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"idx": 0,
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"d_name": "DLS",
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"svc_port_map": [{"service": "auth", "port": DLS_PORT}, {"service": "lease", "port": DLS_PORT}]
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}
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],
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"node_url_list": [{"idx": 0, "url": DLS_URL, "url_qr": DLS_URL, "svc_port_set_idx": 0}]
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},
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"service_instance_configuration": service_instance_configuration,
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"service_instance_public_key_configuration": {
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"service_instance_public_key_me": {
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"mod": hex(INSTANCE_KEY_PUB.public_key().n)[2:],
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@ -239,6 +260,62 @@ async def _client_token():
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return response
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@app.get('/-/ha/replicate', summary='* HA Sync')
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async def _ha_replicate_to_ha(request: Request, background_tasks: BackgroundTasks):
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if HA_REPLICATE is None:
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logger.warning('HA replicate endpoint triggerd, but no value for "HA_REPLICATE" is set!')
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return JSONr(status_code=503, content={'status': 503, 'detail': 'no value for "HA_REPLICATE" set'})
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background_tasks.add_task(ha_replicate, logger, HA_REPLICATE, HA_ROLE, VERSION, DLS_URL, DLS_PORT, SITE_KEY_XID, INSTANCE_REF)
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return JSONr(status_code=202, content=None)
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@app.put('/-/ha/replicate', summary='* HA Sync')
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async def _ha_replicate_by_ha(request: Request):
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j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
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if HA_REPLICATE is None:
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logger.warning(f'HA replicate endpoint triggerd, but no value for "HA_REPLICATE" is set!')
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return JSONr(status_code=503, content={'status': 503, 'detail': 'no value for "HA_REPLICATE" set'})
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version = j.get('VERSION')
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if version != VERSION:
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logger.error(f'Version missmatch on HA replication task!')
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return JSONr(status_code=503, content={'status': 503, 'detail': 'Missmatch for "VERSION"'})
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site_key_xid = j.get('SITE_KEY_XID')
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if site_key_xid != SITE_KEY_XID:
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logger.error(f'Site-Key missmatch on HA replication task!')
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return JSONr(status_code=503, content={'status': 503, 'detail': 'Missmatch for "SITE_KEY_XID"'})
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instance_ref = j.get('INSTANCE_REF')
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if instance_ref != INSTANCE_REF:
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logger.error(f'Version missmatch on HA replication task!')
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return JSONr(status_code=503, content={'status': 503, 'detail': 'Missmatch for "INSTANCE_REF"'})
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remote_time, max_seconds_behind = j.get('cur_time'), 30
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if remote_time <= cur_time - timedelta(seconds=max_seconds_behind):
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logger.error(f'Request time more than {max_seconds_behind}s behind!')
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return JSONr(status_code=503, content={'status': 503, 'detail': 'Request time behind'})
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origins, leases = j.get('origins'), j.get('leases')
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for origin in origins:
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origin_ref = origin.get('origin_ref')
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logging.info(f'> [ ha ]: origin {origin_ref}')
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data = Origin.deserialize(origin)
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Origin.create_or_update(db, data)
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for lease in leases:
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lease_ref = lease.get('lease_ref')
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x = Lease.find_by_lease_ref(db, lease_ref)
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if x.lease_updated > remote_time:
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continue
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logging.info(f'> [ ha ]: lease {lease_ref}')
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data = Lease.deserialize(lease)
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Lease.create_or_update(db, data)
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return JSONr(status_code=202, content=None)
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# venv/lib/python3.9/site-packages/nls_services_auth/test/test_origins_controller.py
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@app.post('/auth/v1/origin', description='find or create an origin')
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async def auth_v1_origin(request: Request):
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@ -545,6 +622,16 @@ async def app_on_startup():
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Your client-token file (.tok) is valid for {str(CLIENT_TOKEN_EXPIRE_DELTA)}.
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''')
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if HA_REPLICATE is not None:
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from hashlib import md5
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logger.info(f'''
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HA mode is enabled. Make sure theses md5-hashes matches on all your nodes:
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- jwt_encode_key md5: "{str(md5(jwt_encode_key))}"
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- jwt_decode_key md5: "{str(md5(jwt_decode_key))}"
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This node ({HA_ROLE}) listens to "https://{DLS_URL}:{DLS_PORT}" and replicates to "https://{HA_REPLICATE}".
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''')
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if __name__ == '__main__':
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import uvicorn
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22
app/util.py
22
app/util.py
@ -26,3 +26,25 @@ def generate_key() -> "RsaKey":
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from Cryptodome.PublicKey.RSA import RsaKey
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return RSA.generate(bits=2048)
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def ha_replicate(logger: "logging.Logger", ha_replicate: str, ha_role: str, version: str, dls_url: str, dls_port: int, site_key_xid: str, instance_ref: str, origins: list["Origin"], leases: list["Lease"]):
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from datetime import datetime
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import httpx
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data = {
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'VERSION': str(version),
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'HA_REPLICATE': f'{dls_url}:{dls_port}',
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'SITE_KEY_XID': str(site_key_xid),
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'INSTANCE_REF': str(instance_ref),
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'origins': [origin.serialize() for origin in origins],
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'leases': [lease.serialize() for lease in leases],
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'cur_time': datetime.utcnow(),
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}
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r = httpx.put(f'https://{ha_replicate}/-/ha/replicate', json=data)
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if r.status_code == 202:
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logger.info(f'Successfully replicated this node ({ha_role}) to "{ha_replicate}".')
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else:
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logger.error(f'Failed to replicate this node ({ha_role}) to "{ha_replicate}": {r.status_code} - {r.content}')
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