OpenStack Rocky : Configure Gnocchi2018/09/06 |
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Install TDBaaS (Time Series Database as a Service), Gnocchi.
This example is based on the emvironment like follows.
------------+---------------------------+---------------------------+------------
| | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ Control Node ] | | [ Storage Node ] | | [ Compute Node ] |
| | | | | |
| MariaDB RabbitMQ | | Open vSwitch | | Libvirt |
| Memcached httpd | | L2 Agent | | Nova Compute |
| Keystone Glance | | L3 Agent | | Open vSwitch |
| Nova API Cinder API | | Metadata Agent | | L2 Agent |
| Neutron Server | | Cinder Volume | | |
| Metadata Agent | | Heat API | | |
| Gnocchi | | Heat Engine | | |
+-----------------------+ +-----------------------+ +-----------------------+
|
| [1] | Add users and others for Gnocchi in Keystone. |
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# add gnocchi user (set in service project) [root@dlp ~(keystone)]# openstack user create --domain default --project service --password servicepassword gnocchi
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| default_project_id | ece4ac6c7e764a979e36ba0b2faf848e |
| domain_id | default |
| enabled | True |
| id | 41a33cacd174493083b7c04bb031afe5 |
| name | gnocchi |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+
# add gnocchi user in admin role [root@dlp ~(keystone)]# openstack role add --project service --user gnocchi admin
# add service entry for gnocchi [root@dlp ~(keystone)]# openstack service create --name gnocchi --description "Metric Service" metric +-------------+----------------------------------+ | Field | Value | +-------------+----------------------------------+ | description | Metric Service | | enabled | True | | id | 08cda35e96a94198ab826b3f41e7dda3 | | name | gnocchi | | type | metric | +-------------+----------------------------------+ # define Gnocchi API host [root@dlp ~(keystone)]# export controller=10.0.0.30
# add endpoint for gnocchi (public) [root@dlp ~(keystone)]# openstack endpoint create --region RegionOne metric public http://$controller:8041 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 684e279b3fda4db5a58fd258dba94d95 | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | 08cda35e96a94198ab826b3f41e7dda3 | | service_name | gnocchi | | service_type | metric | | url | http://10.0.0.30:8041 | +--------------+----------------------------------+ # add endpoint for gnocchi (internal) [root@dlp ~(keystone)]# openstack endpoint create --region RegionOne metric internal http://$controller:8041 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | e4fe7b9cb028469c9a5ba2c2b36f5d69 | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | 08cda35e96a94198ab826b3f41e7dda3 | | service_name | gnocchi | | service_type | metric | | url | http://10.0.0.30:8041 | +--------------+----------------------------------+ # add endpoint for gnocchi (admin) [root@dlp ~(keystone)]# openstack endpoint create --region RegionOne metric admin http://$controller:8041 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | d5ed5f2374dc4520a2ff38a3f51b1f2d | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | 08cda35e96a94198ab826b3f41e7dda3 | | service_name | gnocchi | | service_type | metric | | url | http://10.0.0.30:8041 | +--------------+----------------------------------+ |
| [2] | Add a User and Database on MariaDB for Gnocchi. |
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[root@dlp ~(keystone)]# mysql -u root -p Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 71 Server version: 10.1.20-MariaDB MariaDB Server Copyright (c) 2000, 2016, 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)]>
MariaDB [(none)]> flush privileges; Query OK, 0 rows affected (0.00 sec) exit Bye |
| [3] | Install Gnocchi services. |
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[root@dlp ~(keystone)]# yum --enablerepo=centos-openstack-rocky,epel -y install openstack-gnocchi-api openstack-gnocchi-metricd python2-gnocchiclient
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| [4] | Configure Gnocchi. |
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[root@dlp ~(keystone)]# mv /etc/gnocchi/gnocchi.conf /etc/gnocchi/gnocchi.conf.org
[root@dlp ~(keystone)]#
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@10.0.0.30/gnocchi [storage] driver = file file_basepath = /var/lib/gnocchi # Keystone auth info [keystone_authtoken] www_authenticate_uri = http://10.0.0.30:5000 auth_url = http://10.0.0.30:5000 memcached_servers = 10.0.0.30:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = gnocchi password = servicepassword service_token_roles_required = true
[root@dlp ~(keystone)]#
vi /etc/httpd/conf.d/10-gnocchi_wsgi.conf # create new
Listen 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@dlp ~(keystone)]# chgrp gnocchi /etc/gnocchi/gnocchi.conf
[root@dlp ~(keystone)]#
su -s /bin/bash gnocchi -c "gnocchi-upgrade" [root@dlp ~(keystone)]# systemctl start openstack-gnocchi-metricd [root@dlp ~(keystone)]# systemctl enable openstack-gnocchi-metricd [root@dlp ~(keystone)]# systemctl restart httpd # show status root@dlp ~(keystone)# export OS_AUTH_TYPE=password root@dlp ~(keystone)# gnocchi resource list
# no problem if no error is shown |
| [5] | If SELinux is enabled, change policy. |
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[root@dlp ~(keystone)]# semanage port -a -t http_port_t -p tcp 8041 |
| [6] | If Firewalld is running, allow service port. |
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[root@dlp ~(keystone)]# firewall-cmd --add-port=8041/tcp --permanent success [root@dlp ~(keystone)]# firewall-cmd --reload success |
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