OpenStack Dalmatian : Neutron 設定 (Control ノード)2024/10/10

OpenStack Network Service（Neutron）の設定です。

当例では All in One 構成ではなく、以下のようにノードを役割ごとに分離した 3 ノード構成で設定します。
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 )

------------+--------------------------+--------------------------+------------
            |                          |                          |
        eth0|10.0.0.30             eth0|10.0.0.50             eth0|10.0.0.51
+-----------+-----------+  +-----------+-----------+  +-----------+-----------+
|   [ dlp.srv.world ]   |  | [ network.srv.world ] |  |  [ node01.srv.world ] |
|     (Control Node)    |  |     (Network Node)    |  |     (Compute Node)    |
|                       |  |                       |  |                       |
|  MariaDB    RabbitMQ  |  |  Neutron L2/L3 Agent  |  |        Libvirt        |
|  Memcached  Nginx     |  |   Neutron Metadata    |  |      Nova Compute     |
|  Keystone   httpd     |  |     Open vSwitch      |  |    Neutron L2 Agent   |
|  Glance     Nova API  |  |                       |  |      Open vSwitch     |
|  Neutron Server       |  |                       |  |                       |
|  Neutron Metadata     |  |                       |  |                       |
+-----------------------+  +-----------------------+  +-----------------------+

[1]	こちらを参照して Control ノードで Keystone への Neutron ユーザー登録やデータベース作成を実施しておきます。
[2]	Control ノードに Neutron Server をインストールします。

# Dalmatian, EPEL, CRB からインストール

[root@dlp ~(keystone)]#

dnf --enablerepo=centos-openstack-dalmatian,epel,crb -y install openstack-neutron openstack-neutron-ml2

[3]	Neutron Server 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 = 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@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)]#

vi /etc/neutron/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

# Memcache サーバーを指定

memcache_servers = dlp.srv.world:11211

[root@dlp ~(keystone)]#

vi /etc/neutron/plugins/ml2/ml2_conf.ini

# 最終行に追記
# [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
extension_drivers = port_security,qos

[root@dlp ~(keystone)]#

vi /etc/nova/nova.conf

# 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]
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

[4]	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";
}

[5]	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-dalmatian -y install openstack-selinux

[root@dlp ~(keystone)]#

setsebool -P neutron_can_network 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 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 lnk_file read;
        class file { execute_no_trans getattr };
        class dir search;
        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;

#============= 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

[6]	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

[7]	Neutron サーバーを起動します。

[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 neutron-server neutron-metadata-agent

[root@dlp ~(keystone)]#

systemctl restart openstack-nova-api nginx