agent/node-proxy: fix wrong host name used in data endpoint

data['cephx']['name'] will return something like:

node-proxy.hostname123

the prefix "node-proxy." has the be removed otherwise there will be
a mismatch between what is actually expected.

Signed-off-by: Guillaume Abrioux <[email protected]>

Author: guits

src/pybind/mgr/cephadm/agent.py

@@ -264,7 +264,7 @@ def data(self) -> None:
         self.validate_node_proxy_data(data)
         if 'patch' not in data.keys():
             raise cherrypy.HTTPError(400, 'Malformed data received.')
-        host = data['cephx']['name']
+        host = data['cephx']['name'][11:]
         self.mgr.node_proxy_cache.save(host, data['patch'])
         self.raise_alert(data)