Difference between revisions of "OpenStack: Installing OpenStack Networking"

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Line 219: Line 219:
 
net.ipv4.conf.all.rp_filter = 0
 
net.ipv4.conf.all.rp_filter = 0
 
net.ipv4.conf.default.rp_filter = 0
 
net.ipv4.conf.default.rp_filter = 0
 +
</syntaxhighlight>
 +
 +
<syntaxhighlight>
 +
[root@server2-a ~(keystone_admin)]$ ovs-vsctl add-br br-int
 +
[root@server2-a ~(keystone_admin)]$ ovs-vsctl add-br br-ex
 +
[root@server2-a ~(keystone_admin)]$ ovs-vsctl show
 +
cc658c36-079f-4032-aafa-18bc94250dd5
 +
    Bridge br-ex
 +
        Port br-ex
 +
            Interface br-ex
 +
                type: internal
 +
    Bridge br-int
 +
        Port br-int
 +
            Interface br-int
 +
                type: internal
 +
    ovs_version: "2.1.3"
 +
</syntaxhighlight>
 +
 +
<syntaxhighlight>
 +
[root@server2-a ~(keystone_admin)]$ cp /etc/sysconfig/network-scripts/ifcfg-eth0 /root/
 +
</syntaxhighlight>
 +
 +
* Remove everything but the '''DEVICE''' and '''ONBOOT''' setting from '''<code>/etc/sysconfig/network-scripts/ifcfg-eth0</code>''' and add the following so it looks like this:
 +
<syntaxhighlight>
 +
DEVICE=eth0
 +
ONBOOT=yes
 +
TYPE=OVSPort
 +
DEVICETYPE=ovs
 +
OVS_BRIDGE=br-ex
 +
</syntaxhighlight>
 +
 +
* Put the following into the '''<code>/etc/sysconfig/network-scripts/ifcfg-br-ex</code>''':
 +
<syntaxhighlight>
 +
DEVICE=br-ex
 +
ONBOOT=yes
 +
BOOTPROTO=static
 +
TYPE=OVSBridge
 +
DEVICETYPE=ovs
 +
USERCTL=yes
 +
PEERDNS=yes
 +
IPV6INIT=no
 +
IPADDR=172.25.2.10
 +
NETMASK=255.255.255.0
 +
GATEWAY=172.25.2.254
 +
DNS1=172.25.254.254
 +
SEARCH1=example.com
 +
</syntaxhighlight>
 +
 +
<syntaxhighlight>
 +
[root@server2-a ~(keystone_admin)]$ ovs-vsctl add-port br-ex eth0; systemctl restart network.service
 +
[root@server2-a ~(keystone_admin)]$ hostnamectl set-hostname server2-a.example.com
 +
[root@server2-a ~(keystone_admin)]$ hostname
 +
server2-a.example.com
 +
[root@server2-a ~(keystone_admin)]$ host server2-a.example.com
 +
server2-a.example.com has address 172.25.2.10
 +
</syntaxhighlight>
 +
 +
<syntaxhighlight>
 +
[root@server2-a ~(keystone_admin)]$ ovs-vsctl show
 +
cc658c36-079f-4032-aafa-18bc94250dd5
 +
    Bridge br-ex
 +
        Port "eth0"
 +
            Interface "eth0"
 +
        Port br-ex
 +
            Interface br-ex
 +
                type: internal
 +
    Bridge br-int
 +
        Port br-int
 +
            Interface br-int
 +
                type: internal
 +
    ovs_version: "2.1.3"
 +
</syntaxhighlight>
 +
 +
<syntaxhighlight>
 +
[root@server2-a ~(keystone_admin)]$ systemctl start neutron-openvswitch-agent
 +
[root@server2-a ~(keystone_admin)]$ egrep 'ERROR|CRITICAL' /var/log/neutron/openvswitch-agent.log
 +
[root@server2-a ~(keystone_admin)]$ systemctl enable neutron-openvswitch-agent
 +
ln -s '/usr/lib/systemd/system/neutron-openvswitch-agent.service' '/etc/systemd/system/multi-user.target.wants/neutron-openvswitch-agent.service'
 +
[root@server2-a ~(keystone_admin)]$ systemctl enable neutron-ovs-cleanup
 +
ln -s '/usr/lib/systemd/system/neutron-ovs-cleanup.service' '/etc/systemd/system/multi-user.target.wants/neutron-ovs-cleanup.service'
 +
</syntaxhighlight>
 +
 +
<syntaxhighlight>
 +
[root@server2-a ~(keystone_admin)]$ systemctl start neutron-dhcp-agent
 +
[root@server2-a ~(keystone_admin)]$ egrep 'ERROR|CRITICAL' /var/log/neutron/dhcp-agent.log
 +
[root@server2-a ~(keystone_admin)]$ systemctl enable neutron-dhcp-agent
 +
ln -s '/usr/lib/systemd/system/neutron-dhcp-agent.service' '/etc/systemd/system/multi-user.target.wants/neutron-dhcp-agent.service'
 +
</syntaxhighlight>
 +
 +
<syntaxhighlight>
 +
[root@server2-a ~(keystone_admin)]$ systemctl start neutron-l3-agent
 +
[root@server2-a ~(keystone_admin)]$ egrep 'ERROR|CRITICAL' /var/log/neutron/l3-agent.log
 +
[root@server2-a ~(keystone_admin)]$ systemctl enable neutron-l3-agent
 +
ln -s '/usr/lib/systemd/system/neutron-l3-agent.service' '/etc/systemd/system/multi-user.target.wants/neutron-l3-agent.service'
 +
</syntaxhighlight>
 +
 +
<syntaxhighlight>
 +
[root@server2-a ~(keystone_admin)]$ systemctl start neutron-metadata-agent
 +
[root@server2-a ~(keystone_admin)]$ egrep 'ERROR|CRITICAL' /var/log/neutron/metadata-agent.log
 +
[root@server2-a ~(keystone_admin)]$ systemctl enable neutron-metadata-agent
 +
ln -s '/usr/lib/systemd/system/neutron-metadata-agent.service' '/etc/systemd/system/multi-user.target.wants/neutron-metadata-agent.service'
 +
</syntaxhighlight>
 +
 +
<syntaxhighlight>
 +
[root@server2-a ~(keystone_admin)]$ openstack-status
 +
...
 +
== neutron services ==
 +
neutron-server:                        active
 +
neutron-dhcp-agent:                    active
 +
neutron-l3-agent:                      active
 +
neutron-metadata-agent:                active
 +
neutron-lbaas-agent:                    inactive  (disabled on boot)
 +
neutron-openvswitch-agent:              active
 +
neutron-linuxbridge-agent:              inactive  (disabled on boot)
 +
neutron-ryu-agent:                      inactive  (disabled on boot)
 +
neutron-nec-agent:                      inactive  (disabled on boot)
 +
neutron-mlnx-agent:                    inactive  (disabled on boot)
 +
...
 +
== Support services ==
 +
mysqld:                                inactive  (disabled on boot)
 +
openvswitch:                            active
 +
...
 
</syntaxhighlight>
 
</syntaxhighlight>

Latest revision as of 16:06, 28 April 2015

[root@server2-a ~]# source /root/keystonerc_admin 
[root@server2-a ~(keystone_admin)]$ keystone service-create --name neutron --type network --description 'OpenStack Networking Service'
+-------------+----------------------------------+
|   Property  |              Value               |
+-------------+----------------------------------+
| description |   OpenStack Networking Service   |
|   enabled   |               True               |
|      id     | b89b02bed44e4b2fa2ae8a4933a9875c |
|     name    |             neutron              |
|     type    |             network              |
+-------------+----------------------------------+
[root@server2-a ~(keystone_admin)]$ keystone endpoint-create --service-id b89b02bed44e4b2fa2ae8a4933a9875c --publicurl http://server2-a.example.com:9696 --adminurl http://server2-a.example.com:9696 --internalurl http://server2-a.example.com:9696
+-------------+-----------------------------------+
|   Property  |               Value               |
+-------------+-----------------------------------+
|   adminurl  | http://server2-a.example.com:9696 |
|      id     |  723417d124cc4088a7bf11f42c260b72 |
| internalurl | http://server2-a.example.com:9696 |
|  publicurl  | http://server2-a.example.com:9696 |
|    region   |             regionOne             |
|  service_id |  b89b02bed44e4b2fa2ae8a4933a9875c |
+-------------+-----------------------------------+
[root@server2-a ~(keystone_admin)]$ keystone catalog
Service: network
+-------------+-----------------------------------+
|   Property  |               Value               |
+-------------+-----------------------------------+
|   adminURL  | http://server2-a.example.com:9696 |
|      id     |  4cbafe9f3dec4c44b5066d16ff2a8d17 |
| internalURL | http://server2-a.example.com:9696 |
|  publicURL  | http://server2-a.example.com:9696 |
|    region   |             regionOne             |
+-------------+-----------------------------------+
...
[root@server2-a ~(keystone_admin)]$ keystone user-create --name neutron --pass redhat
+----------+----------------------------------+
| Property |              Value               |
+----------+----------------------------------+
|  email   |                                  |
| enabled  |               True               |
|    id    | 51f8e11cfc704a1dad36e75da259bbc8 |
|   name   |             neutron              |
| username |             neutron              |
+----------+----------------------------------+
[root@server2-a ~(keystone_admin)]$ keystone user-role-add --user neutron --role admin --tenant services
[root@server2-a ~(keystone_admin)]$ yum -y install openvswitch openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch

NB: OpenStack networking requires a service proving AMQP - ensure that rabbitmq-server is running: 

[root@server2-a ~(keystone_admin)]$ systemctl status rabbitmq-server.service 
rabbitmq-server.service - RabbitMQ broker
   Loaded: loaded (/usr/lib/systemd/system/rabbitmq-server.service; enabled)
   Active: active (running) since Tue 2015-04-28 15:53:02 BST; 17min ago
...
[root@server2-a ~(keystone_admin)]$ cp /etc/neutron/neutron.conf /etc/neutron/neutron.conf.orig
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT auth_strategy keystone
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf keystone_authtoken admin_tenant_name services
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf keystone_authtoken admin_user neutron
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf keystone_authtoken admin_password redhat
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf database connection mysql://neutron:redhat@172.25.2.10/neutron
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT rabbit_userid rabbitmqauth
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT rabbit_password redhat
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT rabbit_host server2-a.example.com
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT rabbit_use_ssl True
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT rabbit_port 5671
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT notify_nova_on_port_status_changes True
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT notify_nova_on_port_data_changes True
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT nova_url http://172.25.2.10:8774/v2
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT nova_admin_username nova
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT nova_admin_tenant_id $(keystone tenant-list | awk '/ services / { print $2 }')
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT nova_admin_password redhat
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT nova_admin_auth_url http://172.25.2.10:35357/v2.0
[root@server2-a ~(keystone_admin)]$ cp /etc/neutron/metadata_agent.ini /etc/neutron/metadata_agent.ini.orig

[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/metadata_agent.ini DEFAULT admin_tenant_name services
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/metadata_agent.ini DEFAULT admin_user neutron
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/metadata_agent.ini DEFAULT admin_password redhat
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/metadata_agent.ini DEFAULT auth_url http://172.25.2.10:35357/v2.0
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/metadata_agent.ini DEFAULT auth_region regionOne
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/metadata_agent.ini DEFAULT nova_metadata_ip 172.25.2.10
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/metadata_agent.ini DEFAULT metadata_proxy_shared_secret redhat
[root@server2-a ~(keystone_admin)]$ cp /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugins/ml2/ml2_conf.ini.orig
[root@server2-a ~(keystone_admin)]$ ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT core_plugin neutron.plugins.ml2.plugin.Ml2Plugin
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/neutron.conf DEFAULT service_plugins neutron.services.l3_router.l3_router_plugin.L3RouterPlugin
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/plugin.ini ml2 mechanism_drivers openvswitch
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/plugin.ini ml2 tenant_network_types vlan
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/plugin.ini ml2 type_drivers vlan
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/plugin.ini ml2_type_vlan network_vlan_ranges physnet1:1000:2000
[root@server2-a ~(keystone_admin)]$ 
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/plugin.ini securitygroup firewall_driver neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/plugin.ini securitygroup enable_security_group True
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/plugin.ini database sql_connection mysql://neutron:redhat@172.25.2.10/neutron
[root@server2-a ~(keystone_admin)]$ 
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/plugin.ini ovs bridge_mappings physnet1:br-ex
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/plugin.ini ovs tenant_network_type vlan
[root@server2-a ~(keystone_admin)]$ cd /etc/neutron/plugins/openvswitch/
[root@server2-a openvswitch(keystone_admin)]$ cp ovs_neutron_plugin.ini ovs_neutron_plugin.ini.orig
[root@server2-a openvswitch(keystone_admin)]$ crudini --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini ovs tenant_network_type vlan
[root@server2-a openvswitch(keystone_admin)]$ crudini --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini ovs network_vlan_ranges physnet1:1000:2000
[root@server2-a openvswitch(keystone_admin)]$ crudini --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini ovs bridge_mappings physnet1:br-ex
[root@server2-a openvswitch(keystone_admin)]$ crudini --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini securitygroup firewall_driver neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
[root@server2-a ~(keystone_admin)]$ cp /etc/neutron/l3_agent.ini /etc/neutron/l3_agent.ini.orig

[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/l3_agent.ini DEFAULT interface_driver neutron.agent.linux.interface.OVSInterfaceDriver
[root@server2-a ~(keystone_admin)]$ cp /etc/neutron/dhcp_agent.ini /etc/neutron/dhcp_agent.ini.orig

[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/dhcp_agent.ini DEFAULT interface_driver neutron.agent.linux.interface.OVSInterfaceDriver
[root@server2-a ~(keystone_admin)]$ crudini --set /etc/neutron/dhcp_agent.ini DEFAULT ovs_use_veth True
[root@server2-a ~(keystone_admin)]$ openstack-db --init --service neutron --password redhat --rootpw redhat
Verified connectivity to MySQL.
Creating 'neutron' database.
Updating 'neutron' database password in /etc/neutron/neutron.conf /etc/neutron/plugin.ini
Initializing the neutron database, please wait...

NB: The following error can be ignored: 

ERROR 1146 (42S02) at line 1: Table 'neutron.migrate_version' doesn't exist
Final sanity check failed.
Please file a bug report on bugzilla.redhat.com against the openstack-neutron package.
[root@server2-a ~(keystone_admin)]$ neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini upgrade head
No handlers could be found for logger "neutron.common.legacy"
INFO  [alembic.migration] Context impl MySQLImpl.
INFO  [alembic.migration] Will assume non-transactional DDL.
[root@server2-a ~(keystone_admin)]$ systemctl start neutron-server.service
[root@server2-a ~(keystone_admin)]$ egrep 'ERROR|CRITICAL' /var/log/neutron/server.log 
[root@server2-a ~(keystone_admin)]$ systemctl enable neutron-server.service 
ln -s '/usr/lib/systemd/system/neutron-server.service' '/etc/systemd/system/multi-user.target.wants/neutron-server.service'
[root@server2-a ~(keystone_admin)]$ openstack-status
...
== neutron services ==
neutron-server:                         active
neutron-dhcp-agent:                     inactive  (disabled on boot)
neutron-l3-agent:                       inactive  (disabled on boot)
neutron-metadata-agent:                 inactive  (disabled on boot)
neutron-lbaas-agent:                    inactive  (disabled on boot)
neutron-openvswitch-agent:              inactive  (disabled on boot)
neutron-linuxbridge-agent:              inactive  (disabled on boot)
neutron-ryu-agent:                      inactive  (disabled on boot)
neutron-nec-agent:                      inactive  (disabled on boot)
neutron-mlnx-agent:                     inactive  (disabled on boot)
...
[root@server2-a ~(keystone_admin)]$ systemctl start openvswitch.service
[root@server2-a ~(keystone_admin)]$ egrep 'ERROR|CRITICAL' /var/log/openvswitch/*
[root@server2-a ~(keystone_admin)]$ systemctl enable openvswitch.service 
ln -s '/usr/lib/systemd/system/openvswitch.service' '/etc/systemd/system/multi-user.target.wants/openvswitch.service'
[root@server2-a ~(keystone_admin)]$ cp /etc/sysctl.conf /etc/sysctl.conf.orig
[root@server2-a ~(keystone_admin)]$ echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf
[root@server2-a ~(keystone_admin)]$ echo "net.ipv4.conf.all.rp_filter=0" >> /etc/sysctl.conf
[root@server2-a ~(keystone_admin)]$ echo "net.ipv4.conf.default.rp_filter=0" >> /etc/sysctl.conf
[root@server2-a ~(keystone_admin)]$ sysctl -p
net.ipv4.ip_forward = 1
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.default.rp_filter = 0
[root@server2-a ~(keystone_admin)]$ ovs-vsctl add-br br-int
[root@server2-a ~(keystone_admin)]$ ovs-vsctl add-br br-ex
[root@server2-a ~(keystone_admin)]$ ovs-vsctl show
cc658c36-079f-4032-aafa-18bc94250dd5
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
    Bridge br-int
        Port br-int
            Interface br-int
                type: internal
    ovs_version: "2.1.3"
[root@server2-a ~(keystone_admin)]$ cp /etc/sysconfig/network-scripts/ifcfg-eth0 /root/
  • Remove everything but the DEVICE and ONBOOT setting from /etc/sysconfig/network-scripts/ifcfg-eth0 and add the following so it looks like this:
DEVICE=eth0
ONBOOT=yes
TYPE=OVSPort
DEVICETYPE=ovs
OVS_BRIDGE=br-ex
  • Put the following into the /etc/sysconfig/network-scripts/ifcfg-br-ex:
DEVICE=br-ex
ONBOOT=yes
BOOTPROTO=static
TYPE=OVSBridge
DEVICETYPE=ovs
USERCTL=yes
PEERDNS=yes
IPV6INIT=no
IPADDR=172.25.2.10
NETMASK=255.255.255.0
GATEWAY=172.25.2.254
DNS1=172.25.254.254
SEARCH1=example.com
[root@server2-a ~(keystone_admin)]$ ovs-vsctl add-port br-ex eth0; systemctl restart network.service
[root@server2-a ~(keystone_admin)]$ hostnamectl set-hostname server2-a.example.com
[root@server2-a ~(keystone_admin)]$ hostname
server2-a.example.com
[root@server2-a ~(keystone_admin)]$ host server2-a.example.com
server2-a.example.com has address 172.25.2.10
[root@server2-a ~(keystone_admin)]$ ovs-vsctl show
cc658c36-079f-4032-aafa-18bc94250dd5
    Bridge br-ex
        Port "eth0"
            Interface "eth0"
        Port br-ex
            Interface br-ex
                type: internal
    Bridge br-int
        Port br-int
            Interface br-int
                type: internal
    ovs_version: "2.1.3"
[root@server2-a ~(keystone_admin)]$ systemctl start neutron-openvswitch-agent
[root@server2-a ~(keystone_admin)]$ egrep 'ERROR|CRITICAL' /var/log/neutron/openvswitch-agent.log
[root@server2-a ~(keystone_admin)]$ systemctl enable neutron-openvswitch-agent
ln -s '/usr/lib/systemd/system/neutron-openvswitch-agent.service' '/etc/systemd/system/multi-user.target.wants/neutron-openvswitch-agent.service'
[root@server2-a ~(keystone_admin)]$ systemctl enable neutron-ovs-cleanup
ln -s '/usr/lib/systemd/system/neutron-ovs-cleanup.service' '/etc/systemd/system/multi-user.target.wants/neutron-ovs-cleanup.service'
[root@server2-a ~(keystone_admin)]$ systemctl start neutron-dhcp-agent
[root@server2-a ~(keystone_admin)]$ egrep 'ERROR|CRITICAL' /var/log/neutron/dhcp-agent.log
[root@server2-a ~(keystone_admin)]$ systemctl enable neutron-dhcp-agent
ln -s '/usr/lib/systemd/system/neutron-dhcp-agent.service' '/etc/systemd/system/multi-user.target.wants/neutron-dhcp-agent.service'
[root@server2-a ~(keystone_admin)]$ systemctl start neutron-l3-agent
[root@server2-a ~(keystone_admin)]$ egrep 'ERROR|CRITICAL' /var/log/neutron/l3-agent.log
[root@server2-a ~(keystone_admin)]$ systemctl enable neutron-l3-agent
ln -s '/usr/lib/systemd/system/neutron-l3-agent.service' '/etc/systemd/system/multi-user.target.wants/neutron-l3-agent.service'
[root@server2-a ~(keystone_admin)]$ systemctl start neutron-metadata-agent
[root@server2-a ~(keystone_admin)]$ egrep 'ERROR|CRITICAL' /var/log/neutron/metadata-agent.log
[root@server2-a ~(keystone_admin)]$ systemctl enable neutron-metadata-agent
ln -s '/usr/lib/systemd/system/neutron-metadata-agent.service' '/etc/systemd/system/multi-user.target.wants/neutron-metadata-agent.service'
[root@server2-a ~(keystone_admin)]$ openstack-status
...
== neutron services ==
neutron-server:                         active
neutron-dhcp-agent:                     active
neutron-l3-agent:                       active
neutron-metadata-agent:                 active
neutron-lbaas-agent:                    inactive  (disabled on boot)
neutron-openvswitch-agent:              active
neutron-linuxbridge-agent:              inactive  (disabled on boot)
neutron-ryu-agent:                      inactive  (disabled on boot)
neutron-nec-agent:                      inactive  (disabled on boot)
neutron-mlnx-agent:                     inactive  (disabled on boot)
...
== Support services ==
mysqld:                                 inactive  (disabled on boot)
openvswitch:                            active
...
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