OpenStack Zed : Designate 設定 (Network ノード)2022/11/11 |
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OpenStack DNS Service（Designate）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 Designate をインストールします。
Network ノードに Designate サービス一式をインストールし、バックエンドの DNS サービスとして BIND 9 を設定します。 BIND 9 以外にも PowerDNS などもバックエンド DNS として利用可能です。
------------+-----------------------------+-----------------------------+------------
| | |
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 | | Open vSwitch | | Libvirt |
| Memcached Nginx | | Neutron Server | | Nova Compute |
| Keystone httpd | | OVN-Northd | | Open vSwitch |
| Glance Nova API | | Nginx iSCSI Target | | OVN Metadata Agent |
| Cinder API | | Cinder Volume | | OVN-Controller |
| | | Designate Services | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Designate サービス および BIND 9 をインストールします。 |
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[root@network ~]# dnf --enablerepo=centos-openstack-zed,epel,crb -y install openstack-designate-api openstack-designate-central openstack-designate-worker openstack-designate-producer openstack-designate-mdns python3-designateclient bind bind-utils
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| [2] | Designate から BIND が利用できるよう設定しておきます。 |
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[root@network ~]# rndc-confgen -a -k designate -c /etc/designate.key wrote key file "/etc/designate.key" [root@network ~]# chown named:designate /etc/designate.key [root@network ~]# chmod 640 /etc/designate.key [root@network ~]# mv /etc/named.conf /etc/named.conf.org
[root@network ~]#
vi /etc/named.conf # 新規作成
options {
listen-on port 53 { any; };
listen-on-v6 port 53 { none; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
# クエリの許可範囲は自身の環境に合わせて置き換え
allow-query { localhost; 10.0.0.0/24; };
allow-new-zones yes;
request-ixfr no;
recursion no;
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
pid-file "/run/named/named.pid";
session-keyfile "/run/named/session.key";
};
include "/etc/designate.key";
controls {
inet 0.0.0.0 port 953
allow { localhost; } keys { "designate"; };
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "." IN {
type hint;
file "named.ca";
};
chmod 640 /etc/named.conf [root@network ~]# chgrp named /etc/named.conf [root@network ~]# chown -R named. /var/named [root@network ~]# systemctl enable --now named |
| [3] | Designate の設定です。 |
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[root@network ~]# mv /etc/designate/designate.conf /etc/designate/designate.conf.org
[root@network ~]#
vi /etc/designate/designate.conf # 新規作成 [DEFAULT] log_dir = /var/log/designate # RabbitMQ 接続情報 transport_url = rabbit://openstack:password@dlp.srv.world root_helper = sudo designate-rootwrap /etc/designate/rootwrap.conf [database] # MariaDB 接続情報 connection = mysql+pymysql://designate:password@dlp.srv.world/designate [service:api] listen = 127.0.0.1:9001 auth_strategy = keystone api_base_uri = https://network.srv.world:9001 enable_api_v2 = True enabled_extensions_v2 = quotas, reports # 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 = designate password = servicepassword # httpd Keystone で自己署名の証明書を使用の場合は [true] insecure = false [service:worker] enabled = True notify = True [storage:sqlalchemy] # MariaDB 接続情報 connection = mysql+pymysql://designate:password@dlp.srv.world/designate chmod 640 /etc/designate/designate.conf [root@network ~]# chgrp designate /etc/designate/designate.conf [root@network ~]# su -s /bin/bash -c "designate-manage database sync" designate
[root@network ~]#
systemctl enable --now designate-central designate-api
[root@network ~]#
vi /etc/designate/pools.yaml # 新規作成 (ホスト名や IP アドレスは自身の環境に合わせて置き換え)
- name: default
description: Default Pool
attributes: {}
ns_records:
- hostname: network.srv.world.
priority: 1
nameservers:
- host: 10.0.0.50
port: 53
targets:
- type: bind9
description: BIND9 Server
masters:
- host: 10.0.0.50
port: 5354
options:
host: 10.0.0.50
port: 53
rndc_host: 10.0.0.50
rndc_port: 953
rndc_key_file: /etc/designate.key
chmod 640 /etc/designate/pools.yaml [root@network ~]# chgrp designate /etc/designate/pools.yaml [root@network ~]# su -s /bin/bash -c "designate-manage pool update" designate Updating Pools Configuration **************************** [root@network ~]# systemctl enable --now designate-worker designate-producer designate-mdns
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| [4] | Nginx にプロキシの設定をします。 |
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[root@network ~]#
vi /etc/nginx/nginx.conf # [stream] セクション内に追記
stream {
upstream neutron-api {
server 127.0.0.1:9696;
}
server {
listen 10.0.0.50:9696 ssl;
proxy_pass neutron-api;
}
upstream designate-api {
server 127.0.0.1:9001;
}
server {
listen 10.0.0.50:9001 ssl;
proxy_pass designate-api;
}
ssl_certificate "/etc/letsencrypt/live/network.srv.world/fullchain.pem";
ssl_certificate_key "/etc/letsencrypt/live/network.srv.world/privkey.pem";
}
[root@network ~]# systemctl restart nginx
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| [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。 |
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[root@network ~]# setsebool -P named_write_master_zones on |
| [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。 |
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[root@network ~]# firewall-cmd --add-service=dns [root@network ~]# firewall-cmd --add-port={5354/tcp,5354/udp,9001/tcp} success [root@network ~]# firewall-cmd --runtime-to-permanent success |
| [7] | Openstack に認証可能な任意のノードでステータスを確認します。全て [up] 状態であれば OK です。 |
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[root@dlp ~(keystone)]#
[root@dlp ~(keystone)]# dnf --enablerepo=centos-openstack-zed,epel,crb -y install python3-designateclient openstack dns service list +--------------------------------------+-------------------+--------------+--------+-------+--------------+ | id | hostname | service_name | status | stats | capabilities | +--------------------------------------+-------------------+--------------+--------+-------+--------------+ | 73f4c714-f1c9-4bc7-b5b6-920c43e6137d | network.srv.world | api | UP | - | - | | c1804e23-d2f1-41bf-acfe-350266b5c22e | network.srv.world | central | UP | - | - | | 3fd531f3-d4d4-45d2-9aa6-ed55e1f32b0a | network.srv.world | worker | UP | - | - | | 9884912b-53b5-41e8-81d6-5027a2af037b | network.srv.world | producer | UP | - | - | | 510cbaeb-13b2-4372-8515-9a2bbac0d08b | network.srv.world | mdns | UP | - | - | +--------------------------------------+-------------------+--------------+--------+-------+--------------+ |
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