OpenStack Wallaby : Configure Neutron (Network Node)2021/04/23 |
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Configure OpenStack Network Service (Neutron).
This example is not on the All in One Settings like here,
but Configure the 3 Nodes environment like follows.
Neutron needs a plugin software, it's possible to choose it from some softwares. It chooses ML2 plugin on this example. ( it uses Open vSwitch under the backend )
------------+---------------------------+---------------------------+------------
| | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ Control Node ] | | [ Network Node ] | | [ Compute Node ] |
| | | | | |
| MariaDB RabbitMQ | | Open vSwitch | | Libvirt |
| Memcached httpd | | L2 Agent | | Nova Compute |
| Keystone Glance | | L3 Agent | | Open vSwitch |
| Nova API | | Metadata Agent | | L2 Agent |
| Neutron Server | | | | |
| Metadata Agent | | | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Configure OpenStack Wallaby repository like here of [3] and Install Neutron services on Network Node. |
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[root@network ~]# dnf --enablerepo=centos-openstack-wallaby,powertools,epel -y install openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch libibverbs
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| [2] | Configure Neutron servides. |
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[root@network ~]# mv /etc/neutron/neutron.conf /etc/neutron/neutron.conf.org
[root@network ~]#
vi /etc/neutron/neutron.conf # create new [DEFAULT] core_plugin = ml2 service_plugins = router auth_strategy = keystone state_path = /var/lib/neutron allow_overlapping_ips = 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 [oslo_concurrency] lock_path = $state_path/lock chmod 640 /etc/neutron/neutron.conf [root@network ~]# chgrp neutron /etc/neutron/neutron.conf
[root@network ~]#
vi /etc/neutron/l3_agent.ini
[DEFAULT]
# line 2 : add
interface_driver = openvswitch
[root@network ~]#
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@network ~]#
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@network ~]#
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@network ~]#
vi /etc/neutron/plugins/ml2/openvswitch_agent.ini # add to the end
[securitygroup]
firewall_driver = openvswitch enable_security_group = true enable_ipset = true |
| [3] | If SELinux is enabled, change policy like follows. |
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[root@network ~]# dnf --enablerepo=centos-openstack-wallaby -y install openstack-selinux [root@network ~]# setsebool -P neutron_can_network on [root@network ~]# setsebool -P haproxy_connect_any on [root@network ~]# setsebool -P daemons_enable_cluster_mode on
[root@network ~]#
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@network ~]# semodule_package --outfile ovsofctl.pp --module ovsofctl.mod [root@network ~]# semodule -i ovsofctl.pp |
| [4] | Start Neutron services. |
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[root@network ~]# ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini [root@network ~]# systemctl enable --now openvswitch [root@network ~]# ovs-vsctl add-br br-int [root@network ~]# for service in dhcp-agent l3-agent metadata-agent openvswitch-agent; do systemctl enable --now neutron-$service done |
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