第四章Openstack镜像服务Glance
Glance组件介绍和安装配置
Glance镜像服务
Glance
1.安装Glance软件包
[root@linux-node1 ~]# yum install -y openstack-glance 已加载插件：fastestmirror base | 3.6 kB 00:00
2.编辑文件/etc/glance/glance-api.conf并完成如下动作：
- 在[database]部分，配置数据库访问:
# Deprecated group/name - [sql]/connection connection = mysql+pymysql://glance:glance@192.168.1.11/glance # The SQLAlchemy connection string to use to connect to the slave
黄色部分的配置和registry配置是一样的,蓝色部分为镜像服务glance的数据库密码
- 在[keystone_authtoken]和[paste_deploy]部分，配置认证服务访问：
[keystone_authtoken] auth_uri = http://192.168.1.11:5000 auth_url = http://192.168.1.11:35357 memcached_servers = 192.168.1.11:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = glance password = glance
将配置添加在[keystone_authtoken]下面
[paste_deploy]
flavor = keystone
- 在[glance_store]部分，配置本地文件系统存储和镜像文件位置：
[glance_store] stores = file,http default_store = file filesystem_store_datadir = /var/lib/glance/images/
3.编辑文件/etc/glance/glance-registry.conf并完成如下动作：
- 在[database]部分，配置数据库访问:
# Deprecated group/name - [sql]/connection connection = mysql+pymysql://glance:glance@192.168.1.11/glance # The SQLAlchemy connection string to use to connect to the slave
黄色部分的配置和registry配置是一样的,蓝色部分为镜像服务glance的数据库密码
- 在[keystone_authtoken]和[paste_deploy]部分，配置认证服务访问：
[keystone_authtoken] auth_uri = http://192.168.1.11:5000 auth_url = http://192.168.1.11:35357 memcached_servers = 192.168.1.11:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = glance password = glance
将配置黏贴在[keystone_authtoken]下面
[paste_deploy]
flavor = keystone
4.同步glance镜像服务数据库：
[root@linux-node1 ~]# su -s /bin/sh -c "glance-manage db_sync" glance
检查同步是否完成：
[root@linux-node1 ~]# mysql -h 192.168.1.11 -uglance -pglance -e "use glance;show tables;" +----------------------------------+ | Tables_in_glance | +----------------------------------+ | artifact_blob_locations | | artifact_blobs | | artifact_dependencies | | artifact_properties | | artifact_tags | | artifacts | | image_locations | | image_members | | image_properties | | image_tags | | images | | metadef_namespace_resource_types | | metadef_namespaces | | metadef_objects | | metadef_properties | | metadef_resource_types | | metadef_tags | | migrate_version | | task_info | | tasks | +----------------------------------+
下面来看一看我们配置了哪些？
[root@linux-node1~]# grep '^[a-z]' | /etc/glance/glance-registry.conf connection = mysql+pymysql://glance:glance@192.168.1.11/glance stores = file,http default_store = file filesystem_store_datadir = /var/lib/glance/images auth_uri = http://192.168.1.11:5000 auth_url = http://192.168.1.11:35357 memcached_servers = 192.168.1.11:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = glance password = glance flavor = keystone
完成安装
- 启动镜像服务、配置他们开机自动启动：
[root@linux-node1 ~]# systemctl enable openstack-glance-api.service \ > openstack-glance-registry.service Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-glance-api.service to /usr/lib/systemd/system/openstack-glance-api.service. Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-glance-registry.service to /usr/lib/systemd/system/openstack-glance-registry.service. [root@linux-node1 ~]# systemctl start openstack-glance-api.service \ > openstack-glance-registry.service
检查服务是否已经启动：
root@linux-node1 ~]# netstat -ntlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:9191 0.0.0.0:* LISTEN 3536/python2 tcp 0 0 0.0.0.0:25672 0.0.0.0:* LISTEN 844/beam tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 1183/mysqld tcp 0 0 127.0.0.1:11211 0.0.0.0:* LISTEN 836/memcached tcp 0 0 0.0.0.0:9292 0.0.0.0:* LISTEN 4237/python2 tcp 0 0 0.0.0.0:4369 0.0.0.0:* LISTEN 1/systemd tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 839/sshd tcp 0 0 0.0.0.0:15672 0.0.0.0:* LISTEN 844/beam tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1439/master tcp6 0 0 :::5672 :::* LISTEN 844/beam tcp6 0 0 :::5000 :::* LISTEN 838/httpd tcp6 0 0 ::1:11211 :::* LISTEN 836/memcached tcp6 0 0 :::80 :::* LISTEN 838/httpd tcp6 0 0 :::22 :::* LISTEN 839/sshd tcp6 0 0 ::1:25 :::* LISTEN 1439/master tcp6 0 0 :::35357 :::* LISTEN 838/httpd
[root@linux-node1 ~]# ps aux | grep glance glance 3536 0.0 3.5 338868 67400 ? Ss 6月22 0:00 /usr/bin/python2 /usr/bin/glance-registry glance 3565 0.0 3.3 338868 62732 ? S 6月22 0:00 /usr/bin/python2 /usr/bin/glance-registry glance 4237 1.4 3.7 363232 70412 ? Rs 00:11 0:01 /usr/bin/python2 /usr/bin/glance-api glance 4248 0.0 3.4 363364 65088 ? S 00:11 0:00 /usr/bin/python2 /usr/bin/glance-api root 4267 0.0 0.0 112664 972 pts/0 R+ 00:13 0:00 grep --color=auto glance
查看日志记录：
[root@linux-node1 ~]# cd /var/log/glance/ [root@linux-node1 glance]# ls api.log registry.log [root@linux-node1 glance]# tail api.log 2017-06-22 22:57:04.238 3013 INFO migrate.versioning.api [-] 41 -> 42... 2017-06-22 22:57:04.368 3013 INFO migrate.versioning.api [-] done 2017-06-22 22:57:04.368 3013 INFO migrate.versioning.api [-] 42 -> 43... 2017-06-22 22:57:04.382 3013 INFO migrate.versioning.api [-] done 2017-06-22 22:57:04.382 3013 INFO migrate.versioning.api [-] 43 -> 44... 2017-06-22 22:57:04.389 3013 INFO migrate.versioning.api [-] done
[root@linux-node1 ~]# openstack service list +----------------------------------+----------+----------+ | ID | Name | Type | +----------------------------------+----------+----------+ | 78e6f8140aa344e0abbc41ca7d21d9ed | keystone | identity | +----------------------------------+----------+----------+ [root@linux-node1 ~]# openstack endpoint list +----------------------------+-----------+--------------+--------------+---------+-----------+----------------------------+ | ID | Region | Service Name | Service Type | Enabled | Interface | URL | +----------------------------+-----------+--------------+--------------+---------+-----------+----------------------------+ | 353d9c2b13ec4f5d8e3d51abe7 | RegionOne | keystone | identity | True | internal | http://192.168.1.11:5000/v | | ca6ee2 | | | | | | 3 | | 84952464ca3644da82907fae74 | RegionOne | keystone | identity | True | public | http://192.168.1.11:5000/v | | 453c99 | | | | | | 3 | | f56fc2678a13414cbe94b6fea5 | RegionOne | keystone | identity | True | admin | http://192.168.1.11:35357/ | | 06d13c | | | | | | v3 | +----------------------------+-----------+--------------+--------------+---------+-----------+----------------------------+
- 创建Glance服务实体
[root@linux-node1 ~]# openstack service create --name glance \ > --description "OpenStack Image" image +-------------+----------------------------------+ | Field | Value | +-------------+----------------------------------+ | description | OpenStack Image | | enabled | True | | id | c29f2863d89047b997c721cdb51e77cb | | name | glance | | type | image | +-------------+----------------------------------+
检查是否创建成功:
[root@linux-node1 ~]# openstack service list +----------------------------------+----------+----------+ | ID | Name | Type | +----------------------------------+----------+----------+ | 78e6f8140aa344e0abbc41ca7d21d9ed | keystone | identity | | c29f2863d89047b997c721cdb51e77cb | glance | image | +----------------------------------+----------+----------+
- 创建镜像服务的API端点：
[root@linux-node1 ~]# openstack endpoint create --region RegionOne \ > image public http://192.168.1.11:9292 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 9529f8eba1ce4b27bff51a13b7371d51 | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | c29f2863d89047b997c721cdb51e77cb | | service_name | glance | | service_type | image | | url | http://192.168.1.11:9292 | +--------------+----------------------------------+
[root@linux-node1 ~]# openstack endpoint create --region RegionOne \ > image internal http://192.168.1.11:9292 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | f3b9aae336cb4f478b95ad7c77431580 | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | c29f2863d89047b997c721cdb51e77cb | | service_name | glance | | service_type | image | | url | http://192.168.1.11:9292 | +--------------+----------------------------------+
[root@linux-node1 ~]# openstack endpoint create --region RegionOne \ > image admin http://192.168.1.11:9292 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | bcafb0d3927f4307bfcc96f9f8882211 | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | c29f2863d89047b997c721cdb51e77cb | | service_name | glance | | service_type | image | | url | http://192.168.1.11:9292 | +--------------+----------------------------------+
以上三个API注册完成！
检查下Glance的三个API是否已经成功：(:9292)
[root@linux-node1 ~]# openstack endpoint list +----------------------------+-----------+--------------+--------------+---------+-----------+----------------------------+ | ID | Region | Service Name | Service Type | Enabled | Interface | URL | +----------------------------+-----------+--------------+--------------+---------+-----------+----------------------------+ | 353d9c2b13ec4f5d8e3d51abe7 | RegionOne | keystone | identity | True | internal | http://192.168.1.11:5000/v | | ca6ee2 | | | | | | 3 | | 84952464ca3644da82907fae74 | RegionOne | keystone | identity | True | public | http://192.168.1.11:5000/v | | 453c99 | | | | | | 3 | | 9529f8eba1ce4b27bff51a13b7 | RegionOne | glance | image | True | public | http://192.168.1.11:9292 | | 371d51 | | | | | | | | bcafb0d3927f4307bfcc96f9f8 | RegionOne | glance | image | True | admin | http://192.168.1.11:9292 | | 882211 | | | | | | | | f3b9aae336cb4f478b95ad7c77 | RegionOne | glance | image | True | internal | http://192.168.1.11:9292 | | 431580 | | | | | | | | f56fc2678a13414cbe94b6fea5 | RegionOne | keystone | identity | True | admin | http://192.168.1.11:35357/ | | 06d13c | | | | | | v3 | +----------------------------+-----------+--------------+--------------+---------+-----------+----------------------------+
验证Glance服务：
[root@linux-node1 ~]# glance image-list +----+------+ | ID | Name | +----+------+ +----+------+
验证操作
使用CirrOS对镜像服务进行验证，CirrOS是一个小型的Linux镜像可以用来帮助我们进行Openstack部署测试。
1.下载源镜像：
[root@linux-node1 ~]# wget http://download.cirrors-cloud.net/0.3.4/ciiors-0.3.4-x86_64-disk.img
检查镜像是否已经下载：
[root@linux-node1 ~]# ls -lh 总用量 13M -rw-r--r-- 1 root root 267 6月 23 00:30 admin-openstack.sh -rw-------. 1 root root 1.3K 6月 10 06:06 anaconda-ks.cfg -rw-r--r-- 1 root root 13M 5月 7 2015 cirros-0.3.4-x86_64-disk.img
2.使用QCOW2磁盘格式，bare容器格式上传镜像到镜像服务并设置公共可见，这样所有的项目都可以访问它：
[root@linux-node1 ~]# openstack image create "cirros" \ > --file cirros-0.3.4-x86_64-disk.img \ > --disk-format qcow2 --container-format bare \ > --public +------------------+------------------------------------------------------+ | Field | Value | +------------------+------------------------------------------------------+ | checksum | ee1eca47dc88f4879d8a229cc70a07c6 | | container_format | bare | | created_at | 2017-06-23T05:05:42Z | | disk_format | qcow2 | | file | /v2/images/e44ea6d8-5a32-4bd3-8768-e606018db5ce/file | | id | e44ea6d8-5a32-4bd3-8768-e606018db5ce | | min_disk | 0 | | min_ram | 0 | | name | cirros | | owner | 5a17da2eed3e4da9ae3e2f1c8d9fe6ac | | protected | False | | schema | /v2/schemas/image | | size | 13287936 | | status | active | | tags | | | updated_at | 2017-06-23T05:05:42Z | | virtual_size | None | | visibility | public | +------------------+------------------------------------------------------+
检查是否已经成功上传到Glance镜像位置：
[root@linux-node1 ~]# cd /var/lib/glance/images [root@linux-node1 images]# ll 总用量 12980 -rw-r----- 1 glance glance 13287936 6月 23 01:05 e44ea6d8-5a32-4bd3-8768-e606018db5ce
[root@linux-node1 images]# file e44ea6d8-5a32-4bd3-8768-e606018db5ce e44ea6d8-5a32-4bd3-8768-e606018db5ce: QEMU QCOW Image (v2), 41126400 bytes [root@linux-node1 images]# ll -lh 总用量 13M -rw-r----- 1 glance glance 13M 6月 23 01:05 e44ea6d8-5a32-4bd3-8768-e606018db5ce
[root@linux-node1 images]# openstack image list +--------------------------------------+--------+--------+ | ID | Name | Status | +--------------------------------------+--------+--------+ | e44ea6d8-5a32-4bd3-8768-e606018db5ce | cirros | active | +--------------------------------------+--------+--------+
