Merge pull request #17746 from elliswuuuuuuuu/wip-prometheus

ceph-mgr: can not change prometheus port for mgr

Reviewed-by: Kefu Chai <kchai@redhat.com>
Reviewed-by: John Spray <john.spray@redhat.com>

src/pybind/mgr/prometheus/module.py

@@ -361,7 +361,7 @@ def metrics(self):
 
         cherrypy.config.update({
             'server.socket_host': server_addr,
-            'server.socket_port': server_port,
+            'server.socket_port': int(server_port),
             'engine.autoreload.on': False
         })
         cherrypy.tree.mount(Root(), "/")