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OpenStack Kilo : Configure Neutron (Network Node)
2015/06/13 |
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Configure OpenStack Network Service (Neutron).
For this example, Install Neutron Server on Control Node which Keystone/Glance/Nova API are already installed,
and Install DHCP Agent, L3 Agent, L2 Agent, Metadata Agent on Network Node, and also Install L2 Agent on Compute Node on here.
( it's possible to install on a server as All-in-One, though, if you want )
Neutron needs a plugin software, it's possible to choose it from some softwares.
This example chooses ML2 plugin. ( it uses Open vSwitch under the backend )
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+------------------+ | +------------------------+
| [ Control Node ] | | | [ Network Node ] |
| Keystone |10.0.0.30 | 10.0.0.50| DHCP Agent |
| Glance |------------+------------| L3 Agent |
| Nova API |eth0 | eth0| L2 Agent |
| Neutron Server | | | Metadata Agent |
+------------------+ | +------------------------+
eth0|10.0.0.51
+--------------------+
| [ Compute Node ] |
| Nova Compute |
| L2 Agent |
+--------------------+
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Configure Network Node on here.
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| [1] | Change Kernel parameters for IP fowarding and so on. |
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[root@network ~]# echo 'net.ipv4.ip_forward=1' >> /etc/sysctl.conf [root@network ~]# echo 'net.ipv4.conf.default.rp_filter=0' >> /etc/sysctl.conf [root@network ~]# echo 'net.ipv4.conf.all.rp_filter=0' >> /etc/sysctl.conf [root@network ~]# sysctl -p |
| [2] | Install some packages for Network Node. |
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[root@network ~]# yum --enablerepo=openstack-kilo,epel -y install openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch
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| [3] | Configure as a Network node. |
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[root@network ~]#
vi /etc/neutron/neutron.conf # line 62: add core_plugin = ml2
# line 71: add service_plugins = router
# line 84: uncomment auth_strategy = keystone # line 121: uncomment and change allow_overlapping_ips = True
# line 179: uncomment router_scheduler_driver = neutron.scheduler.l3_agent_scheduler.ChanceScheduler # line 545: uncomment rpc_backend = rabbit # line 551: add control_exchange = neutron
# line 688: comment out and add lines under them (Keystone auth info) [keystone_authtoken] # auth_uri = http://127.0.0.1:35357/v2.0/# identity_uri = http://127.0.0.1:5000# admin_tenant_name = %SERVICE_TENANT_NAME%# admin_user = %SERVICE_USER%# admin_password = %SERVICE_PASSWORD%
auth_uri = http://10.0.0.30:5000
auth_url = http://10.0.0.30:35357 auth_plugin = password project_domain_id = default user_domain_id = default project_name = service username = neutron password = servicepassword # line 919: add (MariaDB connection info) [oslo_messaging_rabbit]
rabbit_host = 10.0.0.30
rabbit_port = 5672 rabbit_userid = guest rabbit_password = password
[root@network ~]#
vi /etc/neutron/l3_agent.ini # line 11: uncomment interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver # line 63: add (it's OK to keep value empty (set it if needed) ) external_network_bridge =
[root@network ~]#
vi /etc/neutron/dhcp_agent.ini # line 16: uncomment interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver # line 31: uncomment dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
[root@network ~]#
vi /etc/neutron/metadata_agent.ini # line 6,7: comment out # auth_url = http://localhost:5000/v2.0# auth_region = RegionOne
# line 12-14: comment out and add follows under them # admin_tenant_name = %SERVICE_TENANT_NAME%# admin_user = %SERVICE_USER%# admin_password = %SERVICE_PASSWORD%
auth_uri = http://10.0.0.30:5000
auth_url = http://10.0.0.30:35357 auth_region = RegionOne auth_plugin = password project_domain_id = default user_domain_id = default project_name = service username = neutron password = servicepassword # line 28: uncomment and specify Nova API server nova_metadata_ip = 10.0.0.30
# line 31: uncomment nova_metadata_port = 8775 # line 51: uncomment and specify secret key you like metadata_proxy_shared_secret = metadata_secret
[root@network ~]#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # line 7: add
type_drivers = flat,vlan,gre
tenant_network_types = vlan,gre mechanism_drivers = openvswitch # line 92: uncomment and add enable_security_group = True firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
mv /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini.org [root@network ~]# ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini [root@network ~]# ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini [root@network ~]# systemctl start openvswitch [root@network ~]# systemctl enable openvswitch [root@network ~]# ovs-vsctl add-br br-int [root@network ~]# for service in dhcp-agent l3-agent metadata-agent openvswitch-agent; do systemctl start neutron-$service systemctl enable neutron-$service done |