OpenStack Ocata : Configure Neutron#4 (Network Node)

Configure OpenStack Network Service (Neutron). This example is not 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. This example chooses ML2 plugin. ( 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,L3,Metadata Agent | | Nova Compute | | Keystone Glance | | | | Open vSwitch | | Nova API | | | | L2 Agent | | Neutron Server | | | | | +-----------------------+ +-----------------------+ +-----------------------+

[1]	Install Neutron services on Network Node.

# install from Ocata, EPEL [root@network ~]#  yum --enablerepo=centos-openstack-ocata,epel -y install openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch

[2]	Configure as a Network node.

[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] auth_uri = http://10.0.0.30:5000 auth_url = http://10.0.0.30:35357 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 [root@network ~]#  chmod 640 /etc/neutron/neutron.conf  [root@network ~]#  chgrp neutron /etc/neutron/neutron.conf  [root@network ~]#  vi /etc/neutron/l3_agent.ini # line 17: add interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver # line 100: add ( it's OK with no value (set later if need) ) external_network_bridge = [root@network ~]#  vi /etc/neutron/dhcp_agent.ini # line 17: add interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver # line 32: uncomment dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq # line 41: uncomment and change enable_isolated_metadata =  True [root@network ~]#  vi /etc/neutron/metadata_agent.ini # line 22: uncomment and specify Nova API server nova_metadata_ip =  10.0.0.30 # line 34: uncomment and specify any secret key you like metadata_proxy_shared_secret =  metadata_secret [root@network ~]#  vi /etc/neutron/plugins/ml2/ml2_conf.ini # line 114: add ( it's OK with no value for "tenant_network_types" (set later if need) ) [ml2] type_drivers = flat,vlan,gre,vxlan tenant_network_types = mechanism_drivers = openvswitch,l2population extension_drivers = port_security # line 247: uncomment and add enable_security_group = True firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver # end line: uncomment enable_ipset = True

[3]	If SELinux is enabled, change policy like follows.

[root@network ~]#  setsebool -P neutron_can_network on  [root@network ~]#  vi neutron-net_pol.te # create new module neutron-net_pol 1.0; require { type sysfs_t; type http_port_t; type neutron_t; type neutron_tmp_t; type hostname_exec_t; type ovsdb_port_t; type openvswitch_t; type openflow_port_t; class file { execute execute_no_trans getattr open read }; class dir search; class sock_file { create write unlink getattr setattr }; class tcp_socket { name_bind name_connect }; class filesystem getattr; } #============= neutron_t ============== allow neutron_t neutron_tmp_t:sock_file create; allow neutron_t http_port_t:tcp_socket name_bind; allow neutron_t sysfs_t:filesystem getattr; allow neutron_t neutron_tmp_t:sock_file { create write getattr unlink setattr }; allow neutron_t openflow_port_t:tcp_socket name_bind; #============= openvswitch_t ============== allow openvswitch_t neutron_t:file { getattr open read }; allow openvswitch_t ovsdb_port_t:tcp_socket name_bind; allow openvswitch_t hostname_exec_t:file { execute execute_no_trans getattr open read }; allow openvswitch_t neutron_t:dir search; [root@network ~]#  checkmodule -m -M -o neutron-net_pol.mod neutron-net_pol.te  checkmodule: loading policy configuration from neutron-net_pol.te checkmodule: policy configuration loaded checkmodule: writing binary representation (version 17) to neutron-net_pol.mod [root@network ~]#  semodule_package --outfile neutron-net_pol.pp --module neutron-net_pol.mod  [root@network ~]#  semodule -i neutron-net_pol.pp

[4]	Start Neutron services.

[root@network ~]#  ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/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