OpenStack Epoxy : Gnocchi 設定2025/09/03 |
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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 Network ノードに 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] | Control ノードの 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 | a60814a6c56241edbbdfae6c290f8abc | | domain_id | default | | email | None | | enabled | True | | id | fe39c8d6fee24c499a3b3b1ed13ce90e | | name | gnocchi | | description | None | | 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 | +-------------+----------------------------------+ | id | d4f5bde2507d4b6c812ac0c4b204eda8 | | name | gnocchi | | type | metric | | enabled | True | | description | Metric Service | +-------------+----------------------------------+ # 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://$controller:8041 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 7d2eefdb634643d2b617cc15c8d11c15 | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | d4f5bde2507d4b6c812ac0c4b204eda8 | | service_name | gnocchi | | service_type | metric | | url | https://network.srv.world:8041 | +--------------+----------------------------------+ # [gnocchi] 用エンドポイント作成 (internal) root@dlp ~(keystone)# openstack endpoint create --region RegionOne metric internal https://$controller:8041 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 54535a2dd9d94846985c974f7134750e | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | d4f5bde2507d4b6c812ac0c4b204eda8 | | 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 | efc7eda60f4e4d39af5e6e59234620ea | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | d4f5bde2507d4b6c812ac0c4b204eda8 | | service_name | gnocchi | | service_type | metric | | url | https://network.srv.world:8041 | +--------------+----------------------------------+ |
| [2] | Network ノードで Gnocchi サービスをインストールします。インストール中の問いには全て [No] で OK です。 |
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root@network:~# apt -y install gnocchi-api gnocchi-metricd python3-gnocchiclient apache2 libapache2-mod-wsgi-py3 mariadb-server
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| [3] | Network ノードで 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@network:~# mysql Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 260 Server version: 11.8.2-MariaDB-1 from Debian -- Please help get to 10k stars at https://github.com/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 |
| [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@127.0.0.1/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 # Apache2 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 = true
root@network:~#
vi /etc/apache2/sites-available/gnocchi-api.conf # 新規作成 # SSL/TLS 証明書は自身のものに置き換え
Listen 8041
<VirtualHost *:8041>
<Directory /usr/bin>
AllowOverride None
Require all granted
</Directory>
SSLEngine on
SSLHonorCipherOrder on
SSLCertificateFile /etc/letsencrypt/live/network.srv.world/cert.pem
SSLCertificateKeyFile /etc/letsencrypt/live/network.srv.world/privkey.pem
SSLCertificateChainFile /etc/letsencrypt/live/network.srv.world/chain.pem
CustomLog /var/log/apache2/gnocchi_wsgi_access.log combined
ErrorLog /var/log/apache2/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] | 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:~# a2enmod wsgi root@network:~# a2enmod ssl root@network:~# a2ensite gnocchi-api root@network:~# systemctl disable --now gnocchi-api root@network:~# systemctl restart gnocchi-metricd apache2 root@network:~# systemctl enable gnocchi-metricd
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| [6] | Control ノードで動作確認します。 |
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root@dlp ~(keystone)#
apt -y install python3-gnocchiclient 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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