Openstack（三）：glance鏡像服務和placement服務

glance鏡像服務

官方文檔：https://docs.openstack.org/glance/stein/install/install-rdo.html#install-and-configure-components

一、數據庫

1、 創建數據庫

mysql?-uroot?-p123456
MariaDB?[(none)]>?CREATE?DATABASE?glance;

2、 創建用戶

GRANT?ALL?PRIVILEGES?ON?glance.*?TO?'glance'@'%'?IDENTIFIED?BY?'glance123';

測試能否連接#? mysql -uglance -pglance123 -hopenstack-mysql.heng.net

二、創建相應的服務并注冊api

1、導入admin賬號的變量,創建glance用戶，并加入admin角色組

source?scripts/admin-stein.sh
openstack?user?create?--domain?default?--password-prompt?glance
密碼glance
openstack?role?add?--project?service?--user?glance?admin

2、創建image服務

[root@controller1 ~]#openstack service create --name glance --description "OpenStack Image" image

+-------------+----------------------------------+

| Field?????? | Value???????????????? ???????????|

+-------------+----------------------------------+

| description | OpenStack Image????????????????? |

| enabled???? | True???????????????????????????? |

| id????????? | 1616cdd9d4f54f87812dc183321cdcf1 |

| name??????? | glance???????????????? ??????????|

| type??????? | image??????????????????????????? |

+-------------+----------------------------------+

3、注冊后端api

openstack endpoint create --region RegionOne image public http://openstack-vip.heng.net:9292

openstack endpoint create --region RegionOne image internal http://openstack-vip.heng.net:9292

openstack endpoint create --region RegionOne image admin http://openstack-vip.heng.net:9292

三、安裝對應服務的軟件包并修改配置文件

1、安裝openstack-glance客戶端（先安裝后注冊服務也可以）

yum?install?openstack-glance

2、為了實現以后實現控制端的高可用，將鏡像放在nfs上，配置nfs

在數據庫和控制端上安裝nfs

yum?install?nfs-utils?-y

vi /etc/exports

/data/openstack/images?*(rw,no_root_squash)

mkdir -p /data/openstack/images

systemctl start nfs

systemctl enable nfs?

控制端測試

showmount? -e 192.168.12.19

3、修改配置文件glance-api.conf

vi /etc/glance/glance-api.conf

[database]
connection?=?mysql+pymysql://glance:glance123@openstack-mysql.heng.net/glance
?
[keystone_authtoken]
www_authenticate_uri?=?http://openstack-vip.heng.net:5000
auth_url?=?http://openstack-vip.heng.net:5000
memcached_servers?=?openstack-mysql.heng.net:11211???memcached在mysql上
auth_type?=?password
project_domain_name?=?Default
user_domain_name?=?Default
project_name?=?service
username?=?glance
password?=?glance???glance賬戶的密碼
?
[paste_deploy]
flavor?=?keystone???認證方式取消注釋即可，所有服務認證方式都是keystone
?
[glance_store]
stores?=?file,http
default_store?=?file
filesystem_store_datadir?=?/var/lib/glance/images/

4、修改配置文件/etc/glance/glance-registry.conf

vi /etc/glance/glance-registry.conf

[database]
connection?=?mysql+pymysql://glance:glance123@openstack-mysql.heng.net/glance
?
[keystone_authtoken]
?
www_authenticate_uri?=?http://openstack-vip.heng.net:5000
auth_url?=?http://openstack-vip.heng.net:5000
memcached_servers?=?openstack-mysql.heng.net:11211
auth_type?=?password
project_domain_name?=?Default
user_domain_name?=?Default
project_name?=?service
username?=?glance
password?=?glance
?
[paste_deploy]
?
flavor?=?keystone

5、初始化數據庫

su?-s?/bin/sh?-c?"glance-manage?db_sync"?glance

6、啟動服務，并設置開機啟動

systemctl?enable?openstack-glance-api.service?openstack-glance-registry.service
systemctl?start?openstack-glance-api.service?openstack-glance-registry.service

7、掛載nfs

啟動服務之后自動生成/var/lib/glance/images

ll?/var/lib/glance/images?-d

停止第6步的服務再掛載

vi /etc/fstab? 設置自動掛載， _netdev表示無法掛載跳過，不影響開機

192.168.12.19:/data/openstack/images?/var/lib/glance/images/?nfs?defaults,_netdev?0?0

mount -a?

注意/var/lib/glance/images的權限必須是glance

8、驗證glance能否上傳

wget?http://download.cirros-cloud.net/0.4.0/cirros-0.4.0-x86_64-disk.img
[root@controller1?~]#?openstack?image?create?"cirros-0.4.0"?\
??--file?/root/cirros-0.4.0-x86_64-disk.img?\
??--disk-format?qcow2?--container-format?bare?\
??--public

openstack?image?list

cat? /var/log/glance/*.log??? 日志 用于排錯

placement服務

官方文檔：https://docs.openstack.org/placement/stein/install/install-rdo.html

一、數據庫

1、創建數據庫授權

mysql?-uroot?-p123456
MariaDB?[(none)]>?CREATE?DATABASE?placement;
GRANT?ALL?PRIVILEGES?ON?placement.*?TO?'placement'@'%'?IDENTIFIED?BY?'placement123';

2、在控制端連接測試

mysql?-uplacement?-pplacement123?-h292.168.12.19

二、創建相應的服務并注冊api

1、創建placement用戶

source?scripts/admin-stein.sh
openstack?user?create?--domain?default?--password-prompt?placement

2、將placement用戶加入admin角色組

openstack?role?add?--project?service?--user?placement?admin

3、創建placement服務

openstack service create --name placement --description "Placement API" placement

4、注冊api到服務

openstack endpoint create --region RegionOne placement public http://openstack-vip.heng.net:8778?

openstack endpoint create --region RegionOne placement internal http://openstack-vip.heng.net:8778

openstack endpoint create --region RegionOne placement admin http://openstack-vip.heng.net:8778

openstack endpoint list? 現在就有3組endpoint

三、安裝對應服務的軟件包并修改配置文件

1、 安裝包

yum?install?openstack-placement-api

2、 修改配置文件

vi /etc/placement/placement.conf

[placement_database]
connection=mysql+pymysql://placement:placement123@openstack-mysql.heng.net/placement
?
[api]
auth_strategy?=?keystone??去掉注釋
?
[keystone_authtoken]
?
auth_url?=?http://openstack-vip.heng.net:5000/v3
memcached_servers?=?openstack-mysql.heng.net:11211
auth_type?=?password
project_domain_name?=?default
user_domain_name?=?default
project_name?=?service
username?=?placement
password?=?placement

3、初始化數據庫

su?-s?/bin/sh?-c?"placement-manage?db?sync"?placement

重啟httpd

source?scripts/admin-stein.sh
placement-status?upgrade?check