404 error with host network mode

[SchetininVitaliy]

Hello, jupyterhub team!

I`m trying start to use docker spawner in my lab. Jupyterhub has installed directly in host machine.
And I use such config file:

c.JupyterHub.spawner_class = 'dockerspawner.SystemUserSpawner'
c.SystemUserSpawner.host_homedir_format_string = '/home/{username}'
import os
notebook_dir = '/home/jovyan/work'
c.DockerSpawner.notebook_dir = notebook_dir

c.DockerSpawner.extra_create_kwargs.update({ 'command': 'start-singleuser.sh' })

c.DockerSpawner.extra_host_config = {'network_mode': 'host'}
c.DockerSpawner.use_internal_ip = True
c.DockerSpawner.network_name = 'host'

c.DockerSpawner.volumes = { 'jupyterhub-user-{username}': notebook_dir }
c.DockerSpawner.extra_create_kwargs.update({ 'volume_driver': 'local' })
# Remove containers once they are stopped
c.DockerSpawner.remove_containers = True
# For debugging arguments passed to spawned containers
c.DockerSpawner.debug = True

import netifaces
docker0 = netifaces.ifaddresses('docker0')
docker0_ipv4 = docker0[netifaces.AF_INET][0]
c.JupyterHub.hub_ip = docker0_ipv4['addr']

And now I see that container has started, but I have 404 error in browser.
In jupyterhub logs:

[I 2017-11-27 16:01:20.477 JupyterHub dockerspawner:452] Container 'jupyter-vitaliy' is gone
[D 2017-11-27 16:01:20.500 JupyterHub dockerspawner:530] Starting host with config: {'binds': {'jupyterhub-user-vitaliy': {'bind': '/home/jovyan/work', 'mode': 'rw'}, '/home/vitaliy': {'bind': '/home/vitaliy', 'ro': False}}, 'links': {}, 'network_mode': 'host'}
[I 2017-11-27 16:01:20.573 JupyterHub dockerspawner:540] Created container 'jupyter-vitaliy' (id: 0c2db9d) from image jupyterhub/singleuser:0.7
[I 2017-11-27 16:01:20.573 JupyterHub dockerspawner:557] Starting container 'jupyter-vitaliy' (id: 0c2db9d)
[D 2017-11-27 16:01:20.997 JupyterHub spawner:584] Polling subprocess every 30s
[D 2017-11-27 16:01:22.929 JupyterHub utils:84] Server at http://127.0.0.1:8888/user/vitaliy responded with 404
[I 2017-11-27 16:01:22.929 JupyterHub base:322] User vitaliy server took 3.210 seconds to start
[I 2017-11-27 16:01:22.930 JupyterHub orm:188] Adding user vitaliy to proxy /user/vitaliy => http://127.0.0.1:8888
[D 2017-11-27 16:01:22.933 JupyterHub orm:146] Fetching POST http://127.0.0.1:8001/api/routes/user/vitaliy
16:01:22.938 - info: [ConfigProxy] Adding route /user/vitaliy -> http://127.0.0.1:8888
16:01:22.939 - info: [ConfigProxy] 201 POST /api/routes/user/vitaliy 
[D 2017-11-27 16:01:22.940 JupyterHub base:236] Setting cookie for vitaliy: jupyter-hub-token-vitaliy, {}

container log:

[W 2017-11-27 13:09:23.693 SingleUserNotebookApp configurable:168] Config option `open_browser` not recognized by `SingleUserNotebookApp`.  Did you mean `browser`?
[W 2017-11-27 13:09:24.325 SingleUserNotebookApp login:225] All authentication is disabled.  Anyone who can connect to this server will be able to run code.
[I 2017-11-27 13:09:24.380 SingleUserNotebookApp extension:43] JupyterLab alpha preview extension loaded from /opt/conda/lib/python3.6/site-packages/jupyterlab
[I 2017-11-27 13:09:24.384 SingleUserNotebookApp notebookapp:1445] Serving notebooks from local directory: /home/vitaliy
[I 2017-11-27 13:09:24.384 SingleUserNotebookApp notebookapp:1445] 0 active kernels
[I 2017-11-27 13:09:24.384 SingleUserNotebookApp notebookapp:1445] The Jupyter Notebook is running at:
[I 2017-11-27 13:09:24.384 SingleUserNotebookApp notebookapp:1445] http://0.0.0.0:8888/
[I 2017-11-27 13:09:24.384 SingleUserNotebookApp notebookapp:1446] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[W 2017-11-27 13:09:24.444 SingleUserNotebookApp log:47] 404 GET /user/vitaliy (127.0.0.1) 57.32ms referer=None
[W 2017-11-27 13:09:24.623 SingleUserNotebookApp log:47] 404 GET /user/vitaliy (::ffff:10.0.2.2) 2.55ms referer=http://mysitehere:223/hub/login?next=%2Fhub%2Fuser%2Fjovyan