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OpenStack Pike : Neutron 設定#22017/09/03
 
OpenStack Network Service（Neutron）をインストールします。
当例では以下のような環境に Neutron サービスをインストールします。
以下のように All in One 構成ではなく、ノードを役割ごとに分離する場合、または Nova Compute ノードを他ホストに分離して構成している場合等の Neutron サービスの構成はこちらを参照して設定ください。
なお、Neutron はプラグイン方式で、プラグインとして利用するソフトウェアを選択する必要があります。 当例では ML2 プラグインを選択して設定します。( バックエンドは Open vSwitch を選択します ) 
                  eth0|10.0.0.30 
          +-----------+-----------+
          |    [ Control Node ]   |
          |                       |
          |  MariaDB    RabbitMQ  |
          |  Memcached  httpd     |
          |  Keystone   Glance    |
          |   Nova API,Compute    |
          |    Neutron Server     |
          |  L2,L3,Metadata Agent |
          +-----------------------+
[1] Neutron サービスをインストールします。
# Pike, EPEL からインストール

[root@dlp ~(keystone)]#
yum --enablerepo=centos-openstack-pike,epel -y install openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch
[2] Neutron サービスの設定です。
[root@dlp ~(keystone)]#
mv /etc/neutron/neutron.conf /etc/neutron/neutron.conf.org

[root@dlp ~(keystone)]#
vi /etc/neutron/neutron.conf
# 新規作成

[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 接続情報
transport_url = rabbit://openstack:password@10.0.0.30

# Keystone 認証情報
[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

# MariaDB 接続情報
[database]
connection = mysql+pymysql://neutron:password@10.0.0.30/neutron_ml2

# Nova 接続情報
[nova]
auth_url = http://10.0.0.30:35357
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
[root@dlp ~(keystone)]#
chmod 640 /etc/neutron/neutron.conf

[root@dlp ~(keystone)]#
chgrp neutron /etc/neutron/neutron.conf

[root@dlp ~(keystone)]#
vi /etc/neutron/l3_agent.ini
# 17行目：追記

interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
[root@dlp ~(keystone)]#
vi /etc/neutron/dhcp_agent.ini
# 17行目：追記

interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
# 32行目：コメント解除

dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
# 41行目：コメント解除して変更

enable_isolated_metadata =
True
[root@dlp ~(keystone)]#
vi /etc/neutron/metadata_agent.ini
# 23行目：コメント解除し Nova API サーバー指定

nova_metadata_host =
10.0.0.30
# 35行目：コメント解除し 任意のシークレットキーを指定

metadata_proxy_shared_secret =
metadata_secret
# 247行目：コメント解除し Memcache サーバー指定

memcache_servers =
10.0.0.30:11211
[root@dlp ~(keystone)]#
vi /etc/neutron/plugins/ml2/ml2_conf.ini
# 114行目：追記 ( tenant_network_types の値はブランクでOK (後ほど必要な時にセット) )

[ml2]
type_drivers = flat,vlan,gre,vxlan
tenant_network_types =
mechanism_drivers = openvswitch,l2population
extension_drivers = port_security
# 247行目：コメント解除 & 追記

enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
# 最終行：コメント解除

enable_ipset = True
[root@dlp ~(keystone)]#
vi /etc/nova/nova.conf
# [DEFAULT] セクション内の適当な場所へ追記

use_neutron = True
linuxnet_interface_driver = nova.network.linux_net.LinuxOVSInterfaceDriver
firewall_driver = nova.virt.firewall.NoopFirewallDriver
vif_plugging_is_fatal = True
vif_plugging_timeout = 300

# 最終行へ追記：Neutron 認証情報
# metadata_proxy_shared_secret の値は metadata_agent.ini で指定した値
[neutron]
url = http://10.0.0.30:9696
auth_url = http://10.0.0.30:35357
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
[3] SELinux を有効にしている場合は、ポリシーの変更が必要です。
[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 neutron-services_pol.te
# 以下の内容で新規作成

module neutron-services_pol 1.0;

require {
        type sysfs_t;
        type proc_t;
        type http_port_t;
        type httpd_config_t;
        type neutron_t;
        type neutron_tmp_t;
        type neutron_var_lib_t;
        type ovsdb_port_t;
        type openvswitch_t;
        type systemd_hwdb_exec_t;
        type openflow_port_t;
        type crontab_exec_t;
        type glance_api_exec_t;
        type NetworkManager_exec_t;
        type loadkeys_exec_t;
        type gpg_exec_t;
        type mysqld_exec_t;
        type glance_registry_exec_t;
        type fsadm_exec_t;
        type nova_exec_t;
        type virtd_exec_t;
        type chfn_exec_t;
        type systemd_systemctl_exec_t;
        type login_exec_t;
        type kdumpctl_exec_t;
        type debuginfo_exec_t;
        type numad_exec_t;
        type policykit_auth_exec_t;
        type ssh_keygen_exec_t;
        type vlock_exec_t;
        type ssh_exec_t;
        type dmesg_exec_t;
        type glance_scrubber_exec_t;
        type hostname_exec_t;
        type dbusd_exec_t;
        type plymouth_exec_t;
        type journalctl_exec_t;
        type fusermount_exec_t;
        type ping_exec_t;
        type gpg_agent_exec_t;
        type su_exec_t;
        type checkpolicy_exec_t;
        type sendmail_exec_t;
        type systemd_tmpfiles_exec_t;
        type memcached_exec_t;
        type virsh_exec_t;
        type groupadd_exec_t;
        type systemd_passwd_agent_exec_t;
        type pinentry_exec_t;
        type passwd_exec_t;
        type systemd_notify_exec_t;
        type traceroute_exec_t;
        type mysqld_safe_exec_t;
        type ssh_agent_exec_t;
        type mandb_exec_t;
        type mount_exec_t;
        type rsync_exec_t;
        type haproxy_t;
        class file { create getattr open read unlink write };
        class dir { add_name remove_name search write };
        class sock_file { create write unlink getattr setattr };
        class tcp_socket { name_bind name_connect };
        class filesystem { getattr unmount };
        class unix_stream_socket connectto;
}

#============= neutron_t ==============
allow neutron_t httpd_config_t:dir search;
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;
allow neutron_t NetworkManager_exec_t:file getattr;
allow neutron_t checkpolicy_exec_t:file getattr;
allow neutron_t chfn_exec_t:file getattr;
allow neutron_t crontab_exec_t:file getattr;
allow neutron_t dbusd_exec_t:file getattr;
allow neutron_t debuginfo_exec_t:file getattr;
allow neutron_t dmesg_exec_t:file getattr;
allow neutron_t fsadm_exec_t:file getattr;
allow neutron_t fusermount_exec_t:file getattr;
allow neutron_t glance_api_exec_t:file getattr;
allow neutron_t glance_registry_exec_t:file getattr;
allow neutron_t glance_scrubber_exec_t:file getattr;
allow neutron_t gpg_agent_exec_t:file getattr;
allow neutron_t gpg_exec_t:file getattr;
allow neutron_t groupadd_exec_t:file getattr;
allow neutron_t hostname_exec_t:file getattr;
allow neutron_t journalctl_exec_t:file getattr;
allow neutron_t kdumpctl_exec_t:file getattr;
allow neutron_t loadkeys_exec_t:file getattr;
allow neutron_t login_exec_t:file getattr;
allow neutron_t mandb_exec_t:file getattr;
allow neutron_t memcached_exec_t:file getattr;
allow neutron_t mount_exec_t:file getattr;
allow neutron_t mysqld_exec_t:file getattr;
allow neutron_t mysqld_safe_exec_t:file getattr;
allow neutron_t nova_exec_t:file getattr;
allow neutron_t numad_exec_t:file getattr;
allow neutron_t passwd_exec_t:file getattr;
allow neutron_t pinentry_exec_t:file getattr;
allow neutron_t ping_exec_t:file getattr;
allow neutron_t plymouth_exec_t:file getattr;
allow neutron_t policykit_auth_exec_t:file getattr;
allow neutron_t proc_t:filesystem unmount;
allow neutron_t rsync_exec_t:file getattr;
allow neutron_t sendmail_exec_t:file getattr;
allow neutron_t ssh_agent_exec_t:file getattr;
allow neutron_t ssh_exec_t:file getattr;
allow neutron_t ssh_keygen_exec_t:file getattr;
allow neutron_t su_exec_t:file getattr;
allow neutron_t systemd_notify_exec_t:file getattr;
allow neutron_t systemd_passwd_agent_exec_t:file getattr;
allow neutron_t systemd_systemctl_exec_t:file getattr;
allow neutron_t systemd_tmpfiles_exec_t:file getattr;
allow neutron_t systemd_hwdb_exec_t:file getattr;
allow neutron_t traceroute_exec_t:file getattr;
allow neutron_t virsh_exec_t:file getattr;
allow neutron_t virtd_exec_t:file getattr;
allow neutron_t vlock_exec_t:file getattr;

#============= openvswitch_t ==============
allow openvswitch_t neutron_t:file { getattr open read };
allow openvswitch_t neutron_t:dir search;
allow openvswitch_t ovsdb_port_t:tcp_socket name_bind;

#============= haproxy_t ==============
allow haproxy_t neutron_t:unix_stream_socket connectto;
allow haproxy_t neutron_var_lib_t:dir { add_name remove_name search write };
allow haproxy_t neutron_var_lib_t:file { create getattr open read unlink write };
allow haproxy_t neutron_var_lib_t:sock_file write;
allow haproxy_t sysfs_t:filesystem getattr;
[root@dlp ~(keystone)]#
checkmodule -m -M -o neutron-services_pol.mod neutron-services_pol.te

checkmodule: loading policy configuration from neutron-services_pol.te
checkmodule: policy configuration loaded
checkmodule: writing binary representation (version 17) to neutron-services_pol.mod
# 中間ファイルからモジュール生成

[root@dlp ~(keystone)]#
semodule_package --outfile neutron-services_pol.pp --module neutron-services_pol.mod

# モジュールインストール

[root@dlp ~(keystone)]#
semodule -i neutron-services_pol.pp

[4] Firewalld を有効にしている場合は、サービスポートの許可が必要です。
[root@dlp ~(keystone)]#
firewall-cmd --add-port=9696/tcp --permanent

success
[root@dlp ~(keystone)]#
firewall-cmd --reload

success
[5] Neutron をサービス起動します。
[root@dlp ~(keystone)]#
systemctl start openvswitch

[root@dlp ~(keystone)]#
systemctl enable 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 start neutron-$service
systemctl enable neutron-$service
done
[root@dlp ~(keystone)]#
systemctl restart openstack-nova-api openstack-nova-compute
# 動作確認

[root@dlp ~(keystone)]#
openstack network agent list 

+--------------+--------------------+---------------+----------+-------+-------+---------------------------+
| ID           | Agent Type         | Host          | Avail... | Alive | State | Binary                    |
+--------------+--------------------+---------------+----------+-------+-------+---------------------------+
| 0cc2b782-... | DHCP agent         | dlp.srv.world | nova     | :-)   | UP    | neutron-dhcp-agent        |
| 6be80ce0-... | Open vSwitch agent | dlp.srv.world | None     | :-)   | UP    | neutron-openvswitch-agent |
| 7ce65448-... | L3 agent           | dlp.srv.world | nova     | :-)   | UP    | neutron-l3-agent          |
| 94e8ae2f-... | Metadata agent     | dlp.srv.world | None     | :-)   | UP    | neutron-metadata-agent    |
+--------------+--------------------+---------------+----------+-------+-------+---------------------------+
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