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OpenStack Xena : Glance 設定
2021/11/22
 
OpenStack Image Service(Glance)をインストールします。
当例では以下のような環境に Glance をインストールします。
        eth0|10.0.0.30 
+-----------+-----------+
|    [ Control Node ]   |
|                       |
|  MariaDB    RabbitMQ  |
|  Memcached  httpd     |
|  Keystone   Glance    |
+-----------------------+

[1] Keystone に Glance 用のユーザー等々を作成しておきます。
# [service] プロジェクト所属で [glance] ユーザーを作成

[root@dlp ~(keystone)]#
openstack user create --domain default --project service --password servicepassword glance

+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | 7e53ef14eb894f379ea1929f5defc949 |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | a6aba3ec75ff4c12ac4813f3324642c4 |
| name                | glance                           |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

# [glance] ユーザーを [admin] ロール に加える

[root@dlp ~(keystone)]#
openstack role add --project service --user glance admin
# [glance] 用サービスエントリ作成

[root@dlp ~(keystone)]#
openstack service create --name glance --description "OpenStack Image service" image

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Image service          |
| enabled     | True                             |
| id          | 69c7d52c2e2046689e4320511f0c0a67 |
| name        | glance                           |
| type        | image                            |
+-------------+----------------------------------+

# Glance API ノードを定義

[root@dlp ~(keystone)]#
export controller=10.0.0.30
# [glance] 用エンドポイント作成 (public)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne image public http://$controller:9292

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | f9faa111458b4c63825df9e96dfcd31c |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 69c7d52c2e2046689e4320511f0c0a67 |
| service_name | glance                           |
| service_type | image                            |
| url          | http://10.0.0.30:9292            |
+--------------+----------------------------------+

# [glance] 用エンドポイント作成 (internal)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne image internal http://$controller:9292

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | ab6003154b5e48439e0e7ced3fcfc1bd |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 69c7d52c2e2046689e4320511f0c0a67 |
| service_name | glance                           |
| service_type | image                            |
| url          | http://10.0.0.30:9292            |
+--------------+----------------------------------+

# [glance] 用エンドポイント作成 (admin)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne image admin http://$controller:9292

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 9f61af0c3f744c80a08f73493d1bb0dd |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 69c7d52c2e2046689e4320511f0c0a67 |
| service_name | glance                           |
| service_type | image                            |
| url          | http://10.0.0.30:9292            |
+--------------+----------------------------------+
[2] Glance 用のユーザーとデータベースを MariaDB に作成しておきます。
[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] Glance をインストールします。
# Xena, EPEL, PowerTools からインストール

[root@dlp ~(keystone)]#
dnf --enablerepo=centos-openstack-xena,powertools,epel -y install openstack-glance
[4] Glance の基本設定です。
[root@dlp ~(keystone)]#
mv /etc/glance/glance-api.conf /etc/glance/glance-api.conf.org

[root@dlp ~(keystone)]#
vi /etc/glance/glance-api.conf
# 以下の内容で新規作成

[DEFAULT]
bind_host = 0.0.0.0

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

[database]
# MariaDB 接続情報
connection = mysql+pymysql://glance:password@10.0.0.30/glance

# keystone 認証情報
[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 = glance
password = servicepassword

[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] SELinux を有効にしている場合は、ブール値の変更が必要です。
[root@dlp ~(keystone)]#
setsebool -P glance_api_can_network on

[root@dlp ~(keystone)]#
vi glanceapi.te
# 以下の内容で新規作成

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;
        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 };

[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

[6] 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。
[root@dlp ~(keystone)]#
firewall-cmd --add-port=9292/tcp

success
[root@dlp ~(keystone)]#
firewall-cmd --runtime-to-permanent

success
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