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I'm setting up openstack infrastructure, composed from controller and compute nodes.

I followed the process of setting sub-services as of USSURI version: keystone, glance, placement. See article

When I came to neutron service, I started with setup of components hosted in controller node with option 1 (network provider) so I followed these 3 articles respectively : process 1/3 - process 2/3 - process 3/3

When I go to creating a network (process 3/3), I receive this error message :

$openstack network create --project-domain Default --project service --share --external --provider-physical-network provider --provider-network-type flat --enable provider

Unable to establish connection to http://controller:9696/v2.0/networks: HTTPConnectionPool(host='controller', port=9696): Max retries exceeded with url: /v2.0/networks (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fd0a7c13630>: Failed to establish a new connection: [Errno 111] Connection refused',))

Waiting for help please.

If the question helped, up-vote it. Thanks in advance.

CloudRock
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  • Obviously your neutron service, which you created in process 2/3, is not up and running. Maybe you configured something wrong. Check the logs of your neutron-service, to find the exact reason, why its not running. – Tobias Jul 25 '20 at 16:32
  • hello Tobias, please see my answer below – CloudRock Jul 26 '20 at 11:40

2 Answers2

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I got the answer...

Controller node Neutron setup process should stop at process 2/3, we can't move forward as this necessary command is not yet passed :

su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/ml2_conf.ini upgrade head" neutron

It synchronizes Neutron databases and creates the necessary table for Neutron keystone-authentication.

CloudRock
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I taped these cmds :

# service neutron-server restart
# service neutron-linuxbridge-agent restart
# service neutron-dhcp-agent restart
# service neutron-metadata-agent restart
# service apache2 restart

before passing the cmd in question with debug option :

$ openstack network create --debug --project-domain Default --project service --share --external --provider-physical-network provider --provider-network-type flat --enable provider

but still coping with same issue:

keystoneauth1.exceptions.connection.ConnectFailure: Unable to establish connection to http://controller:9696/v2.0/networks: HTTPConnectionPool(host='controller', port=9696): Max retries exceeded with url: /v2.0/networks (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f1cc735e7f0>: Failed to establish a new connection: [Errno 111] Connection refused',))

Also I can see this line as debug output:

urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='controller', port=9696): Max retries exceeded with url: /v2.0/networks (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f1cc735e7f0>: Failed to establish a new connection: [Errno 111] Connection refused',))

Furthermore, I added this section to my conf file (/etc/neutron/neutron.conf):

[keystone_authtoken]
# ...
www_authenticate_uri = http://controller:5000
auth_url = http://controller:5000
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = neutron
password = XXXXXXXXXXXX
CloudRock
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  • I had written you, that you should check the log-files of neutron. If it doesn't start because of a false configuration, it will crash again after you restarted it. The log-files can show you the reason, why it doesn't start. – Tobias Jul 26 '20 at 12:32