OpenStack Yoga : Configure Glance2022/05/31

Install and Configure OpenStack Image Service (Glance).

This example is based on the environment like follows.

        eth0|10.0.0.30 
+-----------+-----------+
|   [ dlp.srv.world ]   |
|     (Control Node)    |
|                       |
|  MariaDB    RabbitMQ  |
|  Memcached  httpd     |
|  Keystone   Glance    |
+-----------------------+

[1]	Add users and others for Glance in Keystone.

# create [glance] user in [service] project

[root@dlp ~(keystone)]#

openstack user create --domain default --project service --password servicepassword glance

+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | d3adee66a4644a95a096f85664f5dd66 |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 71f19517a1614cd3bfd757ca4e047aa4 |
| name                | glance                           |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

# add [glance] user in [admin] role

[root@dlp ~(keystone)]#

openstack role add --project service --user glance admin

# create service entry for [glance]

[root@dlp ~(keystone)]#

openstack service create --name glance --description "OpenStack Image service" image

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Image service          |
| enabled     | True                             |
| id          | 6e90e421f92c48a98cb859615c4475e3 |
| name        | glance                           |
| type        | image                            |
+-------------+----------------------------------+

# define Glance API Host

[root@dlp ~(keystone)]#

export controller=dlp.srv.world

# create endpoint for [glance] (public)

[root@dlp ~(keystone)]#

openstack endpoint create --region RegionOne image public https://$controller:9292

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 558d7bc1119f4b91ac1b3cb8578a55cd |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 6e90e421f92c48a98cb859615c4475e3 |
| service_name | glance                           |
| service_type | image                            |
| url          | https://dlp.srv.world:9292       |
+--------------+----------------------------------+

# create endpoint for [glance] (internal)

[root@dlp ~(keystone)]#

openstack endpoint create --region RegionOne image internal https://$controller:9292

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 90fcf39dfc6145b8834f344b7d414a65 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 6e90e421f92c48a98cb859615c4475e3 |
| service_name | glance                           |
| service_type | image                            |
| url          | https://dlp.srv.world:9292       |
+--------------+----------------------------------+

# create endpoint for [glance] (admin)

[root@dlp ~(keystone)]#

openstack endpoint create --region RegionOne image admin https://$controller:9292

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 8181620d91ac447ca1b8a975a03bd564 |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 6e90e421f92c48a98cb859615c4475e3 |
| service_name | glance                           |
| service_type | image                            |
| url          | https://dlp.srv.world:9292       |
+--------------+----------------------------------+

[2]	Add a User and Database on MariaDB for Glance.

[root@dlp ~(keystone)]#

mysql

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 11
Server version: 10.5.9-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 glance; 
Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]> grant all privileges on glance.* to glance@'localhost' identified by 'password'; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> grant all privileges on glance.* to glance@'%' identified by 'password'; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> flush privileges; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> exit
Bye

[3]	Install Glance.

# install from Yoga, EPEL, PowerTools

[root@dlp ~(keystone)]#

dnf --enablerepo=centos-openstack-yoga,powertools,epel -y install openstack-glance

[4]	Configure Glance.

[root@dlp ~(keystone)]#

mv /etc/glance/glance-api.conf /etc/glance/glance-api.conf.org

[root@dlp ~(keystone)]#

vi /etc/glance/glance-api.conf

# create new

[DEFAULT]
bind_host = 127.0.0.1
# RabbitMQ connection info
transport_url = rabbit://openstack:password@dlp.srv.world

[glance_store]
stores = file,http
default_store = file
filesystem_store_datadir = /var/lib/glance/images/

[database]
# MariaDB connection info
connection = mysql+pymysql://glance:password@dlp.srv.world/glance

# 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 = glance
password = servicepassword
# if using self-signed certs on httpd for Keystone, turn to [true]
insecure = false

[paste_deploy]
flavor = keystone

[root@dlp ~(keystone)]#

chmod 640 /etc/glance/glance-api.conf

[root@dlp ~(keystone)]#

chgrp glance /etc/glance/glance-api.conf

[root@dlp ~(keystone)]#

su -s /bin/bash glance -c "glance-manage db_sync"

[root@dlp ~(keystone)]#

systemctl enable --now openstack-glance-api

[5]	Configure Nginx for proxy settings. For SSL/TLS certificate, it's OK to use the same one with Apache httpd Keystone site.

[root@dlp ~(keystone)]#

vi /etc/nginx/nginx.conf

# add to the end

stream {
    upstream glance-api {
        server 127.0.0.1:9292;
    }
    server {
        listen 10.0.0.30:9292 ssl;
        proxy_pass glance-api;
    }
    ssl_certificate "/etc/letsencrypt/live/dlp.srv.world/fullchain.pem";
    ssl_certificate_key "/etc/letsencrypt/live/dlp.srv.world/privkey.pem";
}

[root@dlp ~(keystone)]#

systemctl restart nginx

[6]	If SELinux is enabled, change policy settings.

[root@dlp ~(keystone)]#

setsebool -P glance_api_can_network on

[root@dlp ~(keystone)]#

vi glanceapi.te

# create new

module glanceapi 1.0;

require {
        type glance_api_t;
        type mysqld_exec_t;
        type mysqld_safe_exec_t;
        type rpm_exec_t;
        type hostname_exec_t;
        type sudo_exec_t;
        type httpd_config_t;
        type iscsid_exec_t;
        type gpg_exec_t;
        type crontab_exec_t;
        type consolehelper_exec_t;
        type glance_port_t;
        type httpd_t;
        class tcp_socket name_bind;
        class dir search;
        class file { getattr open read };
}

#============= glance_api_t ==============
allow glance_api_t httpd_config_t:dir search;
allow glance_api_t mysqld_exec_t:file getattr;
allow glance_api_t mysqld_safe_exec_t:file getattr;
allow glance_api_t gpg_exec_t:file getattr;
allow glance_api_t hostname_exec_t:file getattr;
allow glance_api_t rpm_exec_t:file getattr;
allow glance_api_t sudo_exec_t:file getattr;
allow glance_api_t consolehelper_exec_t:file getattr;
allow glance_api_t crontab_exec_t:file getattr;
allow glance_api_t iscsid_exec_t:file { getattr open read };

#============= httpd_t ==============
allow httpd_t glance_port_t:tcp_socket name_bind;

[root@dlp ~(keystone)]#

checkmodule -m -M -o glanceapi.mod glanceapi.te

[root@dlp ~(keystone)]#

semodule_package --outfile glanceapi.pp --module glanceapi.mod

[root@dlp ~(keystone)]#

semodule -i glanceapi.pp

[7]	If Firewalld is running, allow ports for services.

[root@dlp ~(keystone)]#

firewall-cmd --add-port=9292/tcp

success
[root@dlp ~(keystone)]#

firewall-cmd --runtime-to-permanent

success

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