openstack-manuals/doc/install-guide/source/neutron-compute-install.rst

Install and configure compute node

The compute node handles connectivity and security groups <security group> for instances.

ubuntu or debian

Install the components

# apt install neutron-linuxbridge-agent

rdo

Install the components

https://bugzilla.redhat.com/show_bug.cgi?id=1334626

# yum install openstack-neutron-linuxbridge ebtables ipset

obs

Install the components

# zypper install --no-recommends \
  openstack-neutron-linuxbridge-agent bridge-utils

Configure the common component

The Networking common component configuration includes the authentication mechanism, message queue, and plug-in.

• Edit the /etc/neutron/neutron.conf file and complete the following actions:

  • In the [database] section, comment out any connection options because compute nodes do not directly access the database.

  • In the [DEFAULT] section, configure RabbitMQ message queue access:

    [DEFAULT]
    ...
    transport_url = rabbit://openstack:RABBIT_PASS@controller

    Replace RABBIT_PASS with the password you chose for the openstack account in RabbitMQ.

  • In the [DEFAULT] and [keystone_authtoken] sections, configure Identity service access:

    [DEFAULT]
    ...
    auth_strategy = keystone
    
    [keystone_authtoken]
    ...
    auth_uri = http://controller:5000
    auth_url = http://controller:35357
    memcached_servers = controller:11211
    auth_type = password
    project_domain_name = Default
    user_domain_name = Default
    project_name = service
    username = neutron
    password = NEUTRON_PASS

    Replace NEUTRON_PASS with the password you chose for the neutron user in the Identity service.

    Note

    Comment out or remove any other options in the [keystone_authtoken] section.

  rdo

  • In the [oslo_concurrency] section, configure the lock path:

    [oslo_concurrency]
    ...
    lock_path = /var/lib/neutron/tmp

Configure networking options

Choose the same networking option that you chose for the controller node to configure services specific to it. Afterwards, return here and proceed to neutron-compute-compute.

neutron-compute-install-option1.rst neutron-compute-install-option2.rst

Configure the Compute service to use the Networking service

• Edit the /etc/nova/nova.conf file and complete the following actions:

  • In the [neutron] section, configure access parameters:

    [neutron]
    ...
    url = http://controller:9696
    auth_url = http://controller:35357
    auth_type = password
    project_domain_name = Default
    user_domain_name = Default
    region_name = RegionOne
    project_name = service
    username = neutron
    password = NEUTRON_PASS

    Replace NEUTRON_PASS with the password you chose for the neutron user in the Identity service.

Finalize installation

rdo

1. Restart the Compute service:

   # systemctl restart openstack-nova-compute.service

2. Start the Linux bridge agent and configure it to start when the system boots:

   # systemctl enable neutron-linuxbridge-agent.service
   # systemctl start neutron-linuxbridge-agent.service

obs

1. The Networking service initialization scripts expect the variable NEUTRON_PLUGIN_CONF in the /etc/sysconfig/neutron file to reference the ML2 plug-in configuration file. Ensure that the /etc/sysconfig/neutron file contains the following:

   NEUTRON_PLUGIN_CONF="/etc/neutron/plugins/ml2/ml2_conf.ini"

2. Restart the Compute service:

   # systemctl restart openstack-nova-compute.service

3. Start the Linux Bridge agent and configure it to start when the system boots:

   # systemctl enable openstack-neutron-linuxbridge-agent.service
   # systemctl start openstack-neutron-linuxbridge-agent.service

ubuntu or debian

1. Restart the Compute service:

   # service nova-compute restart

2. Restart the Linux bridge agent:

   # service neutron-linuxbridge-agent restart