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OpenStack Antelope : Neutron 設定 #22023/04/14
 
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を例に、Open Virtual Network (OVN) を利用した Neutron ネットワークを設定します。
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。 
        eth0|10.0.0.30 
+-----------+-----------+
|   [ dlp.srv.world ]   |
|     (Control Node)    |
|                       |
|  MariaDB    RabbitMQ  |
|  Memcached  Nginx     |
|  Keystone   httpd     |
|  Glance     Nova API  |
|  Nova Compute         |
|    Neutron Server     |
|    Open vSwitch       |
|  OVN Metadata Agent   |
|    OVN-Controller     |
+-----------------------+
[1] Neutron サービスをインストールします。
# Antelope, EPEL, CRB からインストール

[root@dlp ~(keystone)]#
dnf --enablerepo=centos-openstack-antelope,epel,crb -y install openstack-neutron openstack-neutron-ml2 ovn22.12-central openstack-neutron-ovn-metadata-agent ovn22.12-host.x86_64
[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]
bind_host = 127.0.0.1
bind_port = 9696
core_plugin = ml2
service_plugins = ovn-router
auth_strategy = keystone
state_path = /var/lib/neutron
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@dlp.srv.world

# Keystone 認証情報
[keystone_authtoken]
www_authenticate_uri = https://dlp.srv.world:5000
auth_url = https://dlp.srv.world:5000
memcached_servers = dlp.srv.world:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = neutron
password = servicepassword
# httpd Keystone で自己署名の証明書を使用の場合は [true]
insecure = false

# MariaDB 接続情報
[database]
connection = mysql+pymysql://neutron:password@dlp.srv.world/neutron_ml2

# Nova 接続情報
[nova]
auth_url = https://dlp.srv.world:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = nova
password = servicepassword
# httpd Keystone で自己署名の証明書を使用の場合は [true]
insecure = false

[oslo_concurrency]
lock_path = $state_path/tmp

[oslo_policy]
enforce_new_defaults = true
[root@dlp ~(keystone)]#
chmod 640 /etc/neutron/neutron.conf

[root@dlp ~(keystone)]#
chgrp neutron /etc/neutron/neutron.conf
[root@dlp ~(keystone)]#
mv /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugins/ml2/ml2_conf.ini.org

[root@dlp ~(keystone)]#
vi /etc/neutron/plugins/ml2/ml2_conf.ini
# 新規作成

[DEFAULT]
debug = false

[ml2]
type_drivers = flat,geneve
tenant_network_types = geneve
mechanism_drivers = ovn
extension_drivers = port_security
overlay_ip_version = 4

[ml2_type_geneve]
vni_ranges = 1:65536
max_header_size = 38

[ml2_type_flat]
flat_networks = *

[securitygroup]
enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver

[ovn]
ovn_nb_connection = tcp:10.0.0.30:6641
ovn_sb_connection = tcp:10.0.0.30:6642
ovn_l3_scheduler = leastloaded
ovn_metadata_enabled = True
[root@dlp ~(keystone)]#
chmod 640 /etc/neutron/plugins/ml2/ml2_conf.ini

[root@dlp ~(keystone)]#
chgrp neutron /etc/neutron/plugins/ml2/ml2_conf.ini
[root@dlp ~(keystone)]#
vi /etc/neutron/neutron_ovn_metadata_agent.ini 
[DEFAULT]
# 2行目 : Nova API サーバーを追記
nova_metadata_host = dlp.srv.world
nova_metadata_protocol = https
# 任意のシークレットキーを指定
metadata_proxy_shared_secret = metadata_secret

# 最終行に追記
[agent]
root_helper = sudo neutron-rootwrap /etc/neutron/rootwrap.conf

[ovs]
ovsdb_connection = tcp:127.0.0.1:6640

[ovn]
ovn_sb_connection = tcp:10.0.0.30:6642
[root@dlp ~(keystone)]#
vi /etc/sysconfig/openvswitch
# 28行目 : 追記

OPTIONS="
--ovsdb-server-options='--remote=ptcp:6640:127.0.0.1'
"
[root@dlp ~(keystone)]#
vi /etc/nova/nova.conf
# [DEFAULT] セクション内の適当な場所へ追記

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 [neutron_ovn_metadata_agent.ini] で指定した値
[neutron]
auth_url = https://dlp.srv.world:5000
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
insecure = false
[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)]#
dnf --enablerepo=centos-openstack-antelope -y install openstack-selinux

[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 ovsofctl.te
# 以下の内容で新規作成

module ovsofctl 1.0;

require {
        type neutron_t;
        type neutron_exec_t;
        type pasta_exec_t;
        type tmpfs_t;
        type dnsmasq_t;
        type openvswitch_load_module_t;
        type tracefs_t;
        type var_run_t;
        type openvswitch_t;
        type ovsdb_port_t;
        type kdumpctl_exec_t;
        type devicekit_exec_t;
        type lsmd_exec_t;
        type lsmd_plugin_exec_t;
        type locate_exec_t;
        type glance_scrubber_exec_t;
        type gpg_agent_exec_t;
        type mount_exec_t;
        type rsync_exec_t;
        type journalctl_exec_t;
        type virt_qemu_ga_exec_t;
        type httpd_config_t;
        type chfn_exec_t;
        type glance_api_exec_t;
        type ssh_exec_t;
        type ssh_agent_exec_t;
        type systemd_hwdb_exec_t;
        type checkpolicy_exec_t;
        type chronyc_exec_t;
        type groupadd_exec_t;
        type loadkeys_exec_t;
        type fusermount_exec_t;
        type dmesg_exec_t;
        type rpmdb_exec_t;
        type memcached_exec_t;
        type conmon_exec_t;
        type systemd_tmpfiles_exec_t;
        type passwd_exec_t;
        type ssh_keygen_exec_t;
        type NetworkManager_exec_t;
        type su_exec_t;
        type dbusd_exec_t;
        type numad_exec_t;
        type container_runtime_exec_t;
        type ping_exec_t;
        type rpcbind_exec_t;
        type virtd_exec_t;
        type policykit_auth_exec_t;
        type systemd_systemctl_exec_t;
        type plymouth_exec_t;
        type keepalived_exec_t;
        type mandb_exec_t;
        type systemd_passwd_agent_exec_t;
        type traceroute_exec_t;
        type fsadm_exec_t;
        type thumb_exec_t;
        type mysqld_exec_t;
        type nova_exec_t;
        type crontab_exec_t;
        type swtpm_exec_t;
        type virsh_exec_t;
        type mysqld_safe_exec_t;
        type systemd_notify_exec_t;
        type vlock_exec_t;
        type gpg_exec_t;
        type login_exec_t;
        type hostname_exec_t;
        class sock_file write;
        class file { create execute_no_trans getattr link open read unlink write };
        class dir search;
        class lnk_file read;
        class tcp_socket name_bind;
        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;
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 chronyc_exec_t:file getattr;
allow neutron_t conmon_exec_t:file getattr;
allow neutron_t container_runtime_exec_t:file getattr;
allow neutron_t crontab_exec_t:file getattr;
allow neutron_t dbusd_exec_t:file getattr;
allow neutron_t devicekit_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_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 httpd_config_t:dir search;
allow neutron_t journalctl_exec_t:file getattr;
allow neutron_t kdumpctl_exec_t:file getattr;
allow neutron_t keepalived_exec_t:file getattr;
allow neutron_t loadkeys_exec_t:file getattr;
allow neutron_t locate_exec_t:file getattr;
allow neutron_t login_exec_t:file getattr;
allow neutron_t lsmd_exec_t:file getattr;
allow neutron_t lsmd_plugin_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 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 rpcbind_exec_t:file getattr;
allow neutron_t rpmdb_exec_t:file getattr;
allow neutron_t rsync_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 swtpm_exec_t:file getattr;
allow neutron_t systemd_hwdb_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 thumb_exec_t:file getattr;
allow neutron_t traceroute_exec_t:file getattr;
allow neutron_t virsh_exec_t:file getattr;
allow neutron_t virt_qemu_ga_exec_t:file getattr;
allow neutron_t virtd_exec_t:file getattr;
allow neutron_t vlock_exec_t:file getattr;
allow neutron_t pasta_exec_t:lnk_file read;
allow neutron_t tmpfs_t:file { create getattr link open read unlink write };

#============= openvswitch_t ==============
allow openvswitch_t var_run_t:sock_file write;
allow openvswitch_t ovsdb_port_t:tcp_socket name_bind;

#============= openvswitch_load_module_t ==============
allow openvswitch_load_module_t tracefs_t:dir search;

#============= dnsmasq_t ==============
allow dnsmasq_t self:capability dac_override;
[root@dlp ~(keystone)]#
checkmodule -m -M -o ovsofctl.mod ovsofctl.te

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

[root@dlp ~(keystone)]#
semodule -i ovsofctl.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

success
[root@dlp ~(keystone)]#
firewall-cmd --runtime-to-permanent

success
[5] Nginx にプロキシの設定をします。
[root@dlp ~(keystone)]#
vi /etc/nginx/nginx.conf
# [stream] セクション内に追記

stream {
    upstream glance-api {
        server 127.0.0.1:9292;
    }
    server {
        listen 10.0.0.30:9292 ssl;
        proxy_pass glance-api;
    }
    upstream nova-api {
        server 127.0.0.1:8774;
    }
    server {
        listen 10.0.0.30:8774 ssl;
        proxy_pass nova-api;
    }
    upstream nova-metadata-api {
        server 127.0.0.1:8775;
    }
    server {
        listen 10.0.0.30:8775 ssl;
        proxy_pass nova-metadata-api;
    }
    upstream placement-api {
        server 127.0.0.1:8778;
    }
    server {
        listen 10.0.0.30:8778 ssl;
        proxy_pass placement-api;
    }
    upstream novncproxy {
        server 127.0.0.1:6080;
    }
    server {
        listen 10.0.0.30:6080 ssl;
        proxy_pass novncproxy;
    }
    upstream neutron-api {
        server 127.0.0.1:9696;
    }
    server {
        listen 10.0.0.30:9696 ssl;
        proxy_pass neutron-api;
    }
    ssl_certificate "/etc/letsencrypt/live/dlp.srv.world/fullchain.pem";
    ssl_certificate_key "/etc/letsencrypt/live/dlp.srv.world/privkey.pem";
}
[6] Neutron をサービス起動します。
[root@dlp ~(keystone)]#
systemctl enable --now 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)]#
systemctl enable --now ovn-northd ovn-controller

[root@dlp ~(keystone)]#
ovn-nbctl set-connection ptcp:6641:10.0.0.30 -- set connection . inactivity_probe=60000

[root@dlp ~(keystone)]#
ovn-sbctl set-connection ptcp:6642:10.0.0.30 -- set connection . inactivity_probe=60000

[root@dlp ~(keystone)]#
ovs-vsctl set open . external-ids:ovn-remote=tcp:10.0.0.30:6642

[root@dlp ~(keystone)]#
ovs-vsctl set open . external-ids:ovn-encap-type=geneve

[root@dlp ~(keystone)]#
ovs-vsctl set open . external-ids:ovn-encap-ip=10.0.0.30

[root@dlp ~(keystone)]#
systemctl enable --now neutron-server neutron-ovn-metadata-agent

[root@dlp ~(keystone)]#
systemctl restart openstack-nova-api openstack-nova-compute nginx
# 動作確認

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

+--------------------------------------+----------------------+---------------+-------------------+-------+-------+----------------------------+
| ID                                   | Agent Type           | Host          | Availability Zone | Alive | State | Binary                     |
+--------------------------------------+----------------------+---------------+-------------------+-------+-------+----------------------------+
| 73b3023f-3421-4a51-89c0-cf654dfb1ff7 | OVN Controller agent | dlp.srv.world |                   | :-)   | UP    | ovn-controller             |
| 6661ea8b-d448-54d2-80a4-94a53ee98096 | OVN Metadata agent   | dlp.srv.world |                   | :-)   | UP    | neutron-ovn-metadata-agent |
+--------------------------------------+----------------------+---------------+-------------------+-------+-------+----------------------------+
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