added some ha notes

README.md

@@ -34,9 +34,14 @@ Tested with Ubuntu 22.10 (from Proxmox templates), actually its consuming 100mb
 
 **HA Setup Notes**
 
+- only *failover mode* is supported by team-green (see *high availability* in official user guide)
 - make sure you're using same configuration on each node
 - use same `instance.private.pem` and `instance.private.key` on each node
 
+If you want to use *real* HA, you should use a proxy in front of this service and use a clustered database in backend.
+This is not documented and supported by me, but it *can* work. Please ask the community for help.
+Maybe the simplest solution for HA-ing this service is to use a Docker-Swarm with redundant storage and database.
+
 ## Docker
 
 Docker-Images are available here:

app/main.py

@@ -262,9 +262,9 @@ async def _client_token():
 
 @app.get('/-/ha/replicate', summary='* HA Sync')
 async def _ha_replicate_to_ha(request: Request, background_tasks: BackgroundTasks):
-    if HA_REPLICATE is None:
+    if HA_REPLICATE is None or HA_ROLE is None:
-        logger.warning('HA replicate endpoint triggerd, but no value for "HA_REPLICATE" is set!')
+        logger.warning('HA replicate endpoint triggerd, but no value for "HA_REPLICATE" or "HA_ROLE" is set!')
-        return JSONr(status_code=503, content={'status': 503, 'detail': 'no value for "HA_REPLICATE" set'})
+        return JSONr(status_code=503, content={'status': 503, 'detail': 'no value for "HA_REPLICATE" or "HA_ROLE" set'})
     background_tasks.add_task(ha_replicate, logger, HA_REPLICATE, HA_ROLE, VERSION, DLS_URL, DLS_PORT, SITE_KEY_XID, INSTANCE_REF)
     return JSONr(status_code=202, content=None)