OpenStack Dalmatian : Configure Gnocchi2024/10/16 |
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Install TDBaaS (Time Series Database as a Service), Gnocchi. This example is based on the environment like follows.
------------+--------------------------+--------------------------+------------
| | |
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] | Add users and others for Gnocchi in Keystone. |
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# create [gnocchi] user in [service] project [root@dlp ~(keystone)]# openstack user create --domain default --project service --password servicepassword gnocchi +---------------------+----------------------------------+ | Field | Value | +---------------------+----------------------------------+ | default_project_id | aff8e7e402dc4d9e849bbe0e34fa4538 | | domain_id | default | | email | None | | enabled | True | | id | c508933b074546518b02e3d6c55bbec8 | | name | gnocchi | | description | None | | password_expires_at | None | +---------------------+----------------------------------+ # add [gnocchi] user in [admin] role [root@dlp ~(keystone)]# openstack role add --project service --user gnocchi admin
# create service entry for [gnocchi] [root@dlp ~(keystone)]# openstack service create --name gnocchi --description "Metric Service" metric +-------------+----------------------------------+ | Field | Value | +-------------+----------------------------------+ | id | 576dfab6e2e34769a1c054a82f59554d | | name | gnocchi | | type | metric | | enabled | True | | description | Metric Service | +-------------+----------------------------------+ # define Gnocchi API Host [root@dlp ~(keystone)]# export controller=network.srv.world
# create endpoint for [gnocchi] (public) [root@dlp ~(keystone)]# openstack endpoint create --region RegionOne metric public https://$controller:8041 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 76ae852675b14212af495d7ddb3f10e5 | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | 576dfab6e2e34769a1c054a82f59554d | | service_name | gnocchi | | service_type | metric | | url | https://network.srv.world:8041 | +--------------+----------------------------------+ # create endpoint for [gnocchi] (internal) [root@dlp ~(keystone)]# openstack endpoint create --region RegionOne metric internal https://$controller:8041 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 9acbf3684c7a47a49fa29355992efd7b | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | 576dfab6e2e34769a1c054a82f59554d | | service_name | gnocchi | | service_type | metric | | url | https://network.srv.world:8041 | +--------------+----------------------------------+ # create endpoint for [gnocchi] (admin) [root@dlp ~(keystone)]# openstack endpoint create --region RegionOne metric admin https://$controller:8041 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 39e47c9995b04a81aa9e8894bc8e1e22 | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | 576dfab6e2e34769a1c054a82f59554d | | service_name | gnocchi | | service_type | metric | | url | https://network.srv.world:8041 | +--------------+----------------------------------+ |
| [2] | Add a User and Database on MariaDB for Gnocchi. |
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[root@dlp ~(keystone)]# mysql Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 100 Server version: 10.11.6-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] | Install Gnocchi services on Network Node. |
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[root@network ~]# dnf --enablerepo=centos-openstack-dalmatian,epel,crb -y install gnocchi-api gnocchi-metricd python3-gnocchiclient httpd python3-mod_wsgi
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| [4] | Configure Gnocchi. |
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[root@network ~]# mv /etc/gnocchi/gnocchi.conf /etc/gnocchi/gnocchi.conf.org
[root@network ~]#
vi /etc/gnocchi/gnocchi.conf # create new [DEFAULT] log_dir = /var/log/gnocchi [api] auth_mode = keystone [database] backend = sqlalchemy # MariaDB connection info [indexer] url = mysql+pymysql://gnocchi:password@dlp.srv.world/gnocchi [storage] driver = file file_basepath = /var/lib/gnocchi # Keystone auth info [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 # if using self-signed certs on httpd Keystone, turn to [true] insecure = false [oslo_policy] enforce_new_defaults = true
[root@network ~]#
vi /etc/httpd/conf.d/10-gnocchi_wsgi.conf # create new
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] | Configure Nginx for proxy settings. |
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[root@network ~]#
vi /etc/nginx/nginx.conf # add into the [stream] section
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] | If SELinux is enabled, change policy. |
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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] | If Firewalld is running, allow service ports. |
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[root@network ~]# firewall-cmd --add-port=8041/tcp success [root@network ~]# firewall-cmd --runtime-to-permanent success |
| [8] | Add Data into Database and start Gnocchi services. |
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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] | Verify state on Control Node. |
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[root@dlp ~(keystone)]#
dnf --enablerepo=centos-openstack-dalmatian,epel,crb -y install python3-gnocchiclient
[root@dlp ~(keystone)]#
export OS_AUTH_TYPE=password [root@dlp ~(keystone)]# gnocchi resource list
# OK if no error is shown |
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