OpenStack Xena : Configure Neutron #22021/11/22 |
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Configure OpenStack Network Service (Neutron).
This example is based on the environment like follows.
If you'd like to install Neutron services on other Nodes, refer to here.
Neutron needs a plugin software, it's possible to choose it from some softwares.
It selects ML2 plugin on this example. ( it uses Open vSwitch under the backend )
eth0|10.0.0.30
+-----------+-----------+
| [ Control Node ] |
| |
| MariaDB RabbitMQ |
| Memcached httpd |
| Keystone Glance |
| Nova API,Compute |
| Neutron Server |
| L2,L3,Metadata Agent |
+-----------------------+
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| [1] | Install Neutron services. |
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[root@dlp ~(keystone)]# dnf --enablerepo=centos-openstack-xena,powertools,epel -y install openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch
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| [2] | Configure Neutron services. |
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[root@dlp ~(keystone)]# mv /etc/neutron/neutron.conf /etc/neutron/neutron.conf.org
[root@dlp ~(keystone)]#
vi /etc/neutron/neutron.conf # create new [DEFAULT] core_plugin = ml2 service_plugins = router auth_strategy = keystone state_path = /var/lib/neutron dhcp_agent_notification = True allow_overlapping_ips = True notify_nova_on_port_status_changes = True notify_nova_on_port_data_changes = True # RabbitMQ connection info transport_url = rabbit://openstack:password@10.0.0.30 # Keystone auth info [keystone_authtoken] www_authenticate_uri = http://10.0.0.30:5000 auth_url = http://10.0.0.30:5000 memcached_servers = 10.0.0.30:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = neutron password = servicepassword # MariaDB connection info [database] connection = mysql+pymysql://neutron:password@10.0.0.30/neutron_ml2 # Nova connection info [nova] auth_url = http://10.0.0.30:5000 auth_type = password project_domain_name = default user_domain_name = default region_name = RegionOne project_name = service username = nova password = servicepassword [oslo_concurrency] lock_path = $state_path/tmp chmod 640 /etc/neutron/neutron.conf [root@dlp ~(keystone)]# chgrp neutron /etc/neutron/neutron.conf
[root@dlp ~(keystone)]#
vi /etc/neutron/l3_agent.ini
[DEFAULT]
# line 2 : add
interface_driver = openvswitch
[root@dlp ~(keystone)]#
vi /etc/neutron/dhcp_agent.ini
[DEFAULT]
# line 2 : add
interface_driver = openvswitch
dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq enable_isolated_metadata = true
[root@dlp ~(keystone)]#
vi /etc/neutron/metadata_agent.ini
[DEFAULT]
# line 2 : add # specify Nova API server nova_metadata_host = 10.0.0.30 # specify any secret key you like metadata_proxy_shared_secret = metadata_secret # line 220 : add to specify Memcache server memcache_servers = 10.0.0.30:11211
[root@dlp ~(keystone)]#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # add to the end # OK with no value for [tenant_network_types] now (set later if need)
[ml2]
type_drivers = flat,vlan,gre,vxlan tenant_network_types = mechanism_drivers = openvswitch extension_drivers = port_security
[root@dlp ~(keystone)]#
vi /etc/neutron/plugins/ml2/openvswitch_agent.ini # add to the end
[securitygroup]
firewall_driver = openvswitch enable_security_group = true enable_ipset = true
[root@dlp ~(keystone)]#
vi /etc/nova/nova.conf # add follows into [DEFAULT] section
vif_plugging_is_fatal = True
vif_plugging_timeout = 300
# add follows to the end : Neutron auth info
# the value of [metadata_proxy_shared_secret] is the same with the one in [metadata_agent.ini]
[neutron]
auth_url = http://10.0.0.30:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = neutron
password = servicepassword
service_metadata_proxy = True
metadata_proxy_shared_secret = metadata_secret
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| [3] | If SELinux is enabled, change policy. |
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[root@dlp ~(keystone)]# dnf --enablerepo=centos-openstack-xena -y install openstack-selinux [root@dlp ~(keystone)]# setsebool -P neutron_can_network on [root@dlp ~(keystone)]# setsebool -P haproxy_connect_any on [root@dlp ~(keystone)]# setsebool -P daemons_enable_cluster_mode on
[root@dlp ~(keystone)]#
vi ovsofctl.te # create new
module ovsofctl 1.0;
require {
type neutron_t;
type neutron_exec_t;
type neutron_t;
type dnsmasq_t;
class file execute_no_trans;
class capability { dac_override sys_rawio };
}
#============= neutron_t ==============
allow neutron_t self:capability { dac_override sys_rawio };
allow neutron_t neutron_exec_t:file execute_no_trans;
#============= dnsmasq_t ==============
allow dnsmasq_t self:capability dac_override;
checkmodule -m -M -o ovsofctl.mod ovsofctl.te [root@dlp ~(keystone)]# semodule_package --outfile ovsofctl.pp --module ovsofctl.mod [root@dlp ~(keystone)]# semodule -i ovsofctl.pp |
| [4] | If Firewalld is running, allow ports for services. |
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[root@dlp ~(keystone)]# firewall-cmd --add-port=9696/tcp success [root@dlp ~(keystone)]# firewall-cmd --runtime-to-permanent success |
| [5] | Start Neutron services. |
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[root@dlp ~(keystone)]#
systemctl enable --now openvswitch [root@dlp ~(keystone)]# ovs-vsctl add-br br-int
[root@dlp ~(keystone)]#
ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini [root@dlp ~(keystone)]# su -s /bin/bash neutron -c "neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini upgrade head"
[root@dlp ~(keystone)]#
for service in server dhcp-agent l3-agent metadata-agent openvswitch-agent; do
systemctl enable --now neutron-$service done
[root@dlp ~(keystone)]#
systemctl restart openstack-nova-api openstack-nova-compute
# show status [root@dlp ~(keystone)]# openstack network agent list +--------------------------------------+--------------------+---------------+-------------------+-------+-------+---------------------------+ | ID | Agent Type | Host | Availability Zone | Alive | State | Binary | +--------------------------------------+--------------------+---------------+-------------------+-------+-------+---------------------------+ | 20c94ae1-5022-4856-8738-16d587d7648d | L3 agent | dlp.srv.world | nova | :-) | UP | neutron-l3-agent | | 68457b64-763d-4b12-8f59-cfa1ee5a95a5 | DHCP agent | dlp.srv.world | nova | :-) | UP | neutron-dhcp-agent | | 92e1092f-a41c-4c5c-a844-d075d0874ff7 | Open vSwitch agent | dlp.srv.world | None | :-) | UP | neutron-openvswitch-agent | | cb50bb64-aef6-4a11-9aa0-2d048203ae4e | Metadata agent | dlp.srv.world | None | :-) | UP | neutron-metadata-agent | +--------------------------------------+--------------------+---------------+-------------------+-------+-------+---------------------------+ |
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