OpenStack Caracal : Gnocchi 設定2024/08/08 |
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時系列データベース [TDBaaS (Time Series Database as a Service)] Gnocchi 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 Gnocchi をインストールします。
------------+--------------------------+--------------------------+------------
| | |
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 |
| | | Gnocchi httpd | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Keystone に Gnocchi 用のユーザー等々を登録しておきます。 |
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# [service] プロジェクト所属で [gnocchi] ユーザーを作成 [root@dlp ~(keystone)]# openstack user create --domain default --project service --password servicepassword gnocchi
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| default_project_id | 0b826f1bf49d489494e94badc32f2cea |
| domain_id | default |
| enabled | True |
| id | 3b7838fa93d94484bbb9a6deb4332050 |
| name | gnocchi |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+
# [gnocchi] ユーザーを [admin] ロール に加える [root@dlp ~(keystone)]# openstack role add --project service --user gnocchi admin
# [gnocchi] 用サービスエントリ作成 [root@dlp ~(keystone)]# openstack service create --name gnocchi --description "Metric Service" metric +-------------+----------------------------------+ | Field | Value | +-------------+----------------------------------+ | description | Metric Service | | enabled | True | | id | a241e7abe60345ff8dad133929619f38 | | name | gnocchi | | type | metric | +-------------+----------------------------------+ # Gnocchi API ホストを定義 [root@dlp ~(keystone)]# export controller=network.srv.world
# [gnocchi] 用エンドポイント作成 (public) [root@dlp ~(keystone)]# openstack endpoint create --region RegionOne metric public https://$controller:8041 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | b43211897a5045868cd92a9a11db292d | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | a241e7abe60345ff8dad133929619f38 | | service_name | gnocchi | | service_type | metric | | url | https://network.srv.world:8041 | +--------------+----------------------------------+ # [gnocchi] 用エンドポイント作成 (internal) [root@dlp ~(keystone)]# openstack endpoint create --region RegionOne metric internal https://$controller:8041 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | c70f02ee24fd4a87b13e1f542bf78a39 | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | a241e7abe60345ff8dad133929619f38 | | service_name | gnocchi | | service_type | metric | | url | https://network.srv.world:8041 | +--------------+----------------------------------+ # [gnocchi] 用エンドポイント作成 (admin) [root@dlp ~(keystone)]# openstack endpoint create --region RegionOne metric admin https://$controller:8041 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 73a418f5238442bcad097e0284cf3c8f | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | a241e7abe60345ff8dad133929619f38 | | service_name | gnocchi | | service_type | metric | | url | https://network.srv.world:8041 | +--------------+----------------------------------+ |
| [2] | Gnocchi 用のユーザーとデータベースを MariaDB に作成しておきます。 |
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[root@dlp ~(keystone)]# mysql Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 98 Server version: 10.5.22-MariaDB MariaDB Server Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [(none)]> create database gnocchi; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> grant all privileges on gnocchi.* to gnocchi@'localhost' identified by 'password'; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> grant all privileges on gnocchi.* to gnocchi@'%' identified by 'password'; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> exit Bye |
| [3] | Network ノードで Gnocchi サービスをインストールします。 |
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[root@network ~]# dnf --enablerepo=centos-openstack-caracal,epel,crb -y install openstack-gnocchi-api openstack-gnocchi-metricd python3-gnocchiclient httpd python3-mod_wsgi
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| [4] | Gnocchi の基本設定です。 |
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[root@network ~]# mv /etc/gnocchi/gnocchi.conf /etc/gnocchi/gnocchi.conf.org
[root@network ~]#
vi /etc/gnocchi/gnocchi.conf # 新規作成 [DEFAULT] log_dir = /var/log/gnocchi [api] auth_mode = keystone [database] backend = sqlalchemy # MariaDB 接続情報 [indexer] url = mysql+pymysql://gnocchi:password@dlp.srv.world/gnocchi [storage] driver = file file_basepath = /var/lib/gnocchi # 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 = gnocchi password = servicepassword service_token_roles_required = true # httpd Keystone で自己署名の証明書を使用の場合は [true] insecure = false [oslo_policy] enforce_new_defaults = false
[root@network ~]#
vi /etc/httpd/conf.d/10-gnocchi_wsgi.conf # 新規作成
Listen 127.0.0.1:8041
<VirtualHost *:8041>
<Directory /usr/bin>
AllowOverride None
Require all granted
</Directory>
CustomLog /var/log/httpd/gnocchi_wsgi_access.log combined
ErrorLog /var/log/httpd/gnocchi_wsgi_error.log
SetEnvIf X-Forwarded-Proto https HTTPS=1
WSGIApplicationGroup %{GLOBAL}
WSGIDaemonProcess gnocchi display-name=gnocchi_wsgi user=gnocchi group=gnocchi processes=6 threads=6
WSGIProcessGroup gnocchi
WSGIScriptAlias / /usr/bin/gnocchi-api
</VirtualHost>
chmod 640 /etc/gnocchi/gnocchi.conf [root@network ~]# chgrp gnocchi /etc/gnocchi/gnocchi.conf
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| [5] | 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 gnocchi-api {
server 127.0.0.1:8041;
}
server {
listen 10.0.0.50:8041 ssl;
proxy_pass gnocchi-api;
}
ssl_certificate "/etc/letsencrypt/live/network.srv.world/fullchain.pem";
ssl_certificate_key "/etc/letsencrypt/live/network.srv.world/privkey.pem";
}
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| [6] | 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 httpd_can_network_connect on [root@network ~]# semanage port -a -t http_port_t -p tcp 8041 |
| [7] | 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-port=8041/tcp success [root@network ~]# firewall-cmd --runtime-to-permanent success |
| [8] | データベースにデータを追加して Gnocchi サービスを起動します。 |
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[root@network ~]# su -s /bin/bash gnocchi -c "gnocchi-upgrade" [root@network ~]# systemctl enable --now openstack-gnocchi-metricd httpd [root@network ~]# systemctl restart nginx |
| [9] | Control ノードで動作確認します。 |
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[root@dlp ~(keystone)]#
dnf --enablerepo=centos-openstack-caracal,epel,crb -y install python3-gnocchiclient # 動作確認 [root@dlp ~(keystone)]# export OS_AUTH_TYPE=password [root@dlp ~(keystone)]# gnocchi resource list
# 何も表示されなければ問題なし |
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