OpenStack 鏡像服務Glance [三]

OpenStack 鏡像服務Glance [三]

OpenStack 鏡像服務Glance [三]

openstack
時間：2016年11月28日

OpenStack鏡像服務Glance介紹

建立虛擬機咱們須要有glance的支持，由於glance是提供鏡像服務
glance有兩個比較重要的服務
Glance-api接受雲系統鏡像的構建、刪除、讀取請求
Glance-Registry雲系統的鏡像註冊服務

　　咱們須要配置glance-api的配置文件和glance-registry配置文件
　　glance不須要配置消息隊列，可是glance須要配置keystone（認證中心）

提示：默認狀況下上傳鏡像存放在/var/lib/glance/p_w_picpaths下

安裝glance
建立數據庫和在keystone上穿件glance用戶咱們已經建立完成

安裝軟件包

[root@linux-node1 ~]# yum install openstack-glance -y

修改數據庫地址

[root@linux-node1 ~]# vim /etc/glance/glance-api.conf[database]…connection = mysql+pymysql://glance:glance@192.168.56.11/glance…[root@linux-node1 ~]# vim /etc/glance/glance-registry.conf[database]…connection = mysql+pymysql://glance:glance@192.168.56.11/glance…#打開註釋，寫mysql地址，注意是在database默認下

修改完以後咱們須要同步數據庫

[root@linux-node1 ~]# su -s /bin/sh -c "glance-manage db_sync" glance#替咱們去建立表結構，openstack有警告沒有關係，只要不是error就能夠

同步完數據庫以後咱們進行檢查

[root@linux-node1 ~]# mysql -h 192.168.56.11 -u glance -pglance -e "use glance;show tables;"+----------------------------------+| Tables_in_glance                 |+----------------------------------+| artifact_blob_locations          || artifact_blobs                   || artifact_dependencies            || artifact_properties              || artifact_tags                    || artifacts                        || p_w_picpath_locations                  || p_w_picpath_members                    || p_w_picpath_properties                 || p_w_picpath_tags                       || p_w_picpaths                           || metadef_namespace_resource_types || metadef_namespaces               || metadef_objects                  || metadef_properties               || metadef_resource_types           || metadef_tags                     || migrate_version                  || task_info                        || tasks                            |+----------------------------------+

咱們要確保數據庫能夠進行同步

設置keystone

在[keystone_authtoken]進行設置

[root@linux-node1 ~]# vim /etc/glance/glance-api.conf…[keystone_authtoken]auth_uri = http://192.168.56.11:5000auth_url = http://192.168.56.11:35357memcached_servers = 192.168.56.11:11211auth_type = password                    #驗證類型爲密碼project_domain_name = default           #默認域user_domain_name = default              #用戶默認域project_name = service                  #項目名稱username = glance                       #用戶password = glance                       #密碼

提示：必須複製在[keystone_authtoken]模塊下，不然不生效
還須要設置[paste_deploy]模塊

[paste_deploy]flavor = keystone#去掉註釋並修改成keystone

設置registry，和api的設置同樣

[root@linux-node1 ~]# vim /etc/glance/glance-registry.conf…[keystone_authtoken]auth_uri = http://192.168.56.11:5000auth_url = http://192.168.56.11:35357memcached_servers = 192.168.56.11:11211auth_type = password                    project_domain_name = default           user_domain_name = default              project_name = service                  username = glance                       password = glance            …[paste_deploy]flavor = keystone

配置鏡像路徑
在glance-api配置本地文件系統存儲和鏡像文件位置

[root@linux-node1 ~]# vim /etc/glance/glance-api.conf…[glance_store]stores = file,httpdefault_store = filefilesystem_store_datadir = /var/lib/glance/p_w_picpaths#以上配置都是打開註釋就能夠

檢查
glance-api配置文件配置小結：

[root@linux-node1 ~]# grep '^[a-z]' /etc/glance/glance-api.conf connection = mysql+pymysql://glance:glance@192.168.56.11/glancestores = file,httpdefault_store = filefilesystem_store_datadir = /var/lib/glance/p_w_picpathsauth_uri = http://192.168.56.11:5000auth_url = http://192.168.56.11:35357memcached_servers = 192.168.56.11:11211auth_type = password        project_domain_name = default  user_domain_name = defaultproject_name = service  username = glancepassword = glanceflavor = keystone

registry配置以下

[root@linux-node1 ~]# grep '^[a-z]' /etc/glance/glance-registry.conf connection = mysql+pymysql://glance:glance@192.168.56.11/glanceauth_uri = http://192.168.56.11:5000auth_url = http://192.168.56.11:35357memcached_servers = 192.168.56.11:11211auth_type = password project_domain_name = defaultuser_domain_name = default   project_name = service      username = glance          password = glance         flavor = keystone提示：registry和api的配置跟我同樣如今咱們就能夠啓動了

設置開啓啓動並開啓服務

[root@linux-node1 ~]# systemctl enable openstack-glance-api.service [root@linux-node1 ~]# systemctl enable openstack-glance-registry.service [root@linux-node1 ~]# systemctl start openstack-glance-api.service [root@linux-node1 ~]# systemctl start openstack-glance-registry.service

提示：9292是glance-api的端口，9191是glance-registry的端口

在keystone上設置服務註冊
1.建立服務

[root@linux-node1 ~]# source admin-openstack.sh [root@linux-node1 ~]# openstack service create --name glance --description "OpenStack Image" p_w_picpath+-------------+----------------------------------+| Field       | Value                            |+-------------+----------------------------------+| description | OpenStack Image                  || enabled     | True                             || id          | c9fd28645efe45faa2a9cf2f2cce623e || name        | glance                           || type        | p_w_picpath                            |+-------------+----------------------------------+

2.建立鏡像服務的API端點

[root@linux-node1 ~]# openstack endpoint create --region RegionOne \> p_w_picpath public http://192.168.56.11:9292+--------------+----------------------------------+| Field        | Value                            |+--------------+----------------------------------+| enabled      | True                             || id           | cabb8016fef74b438a341866ef10917f || interface    | public                           || region       | RegionOne                        || region_id    | RegionOne                        || service_id   | c9fd28645efe45faa2a9cf2f2cce623e || service_name | glance                           || service_type | p_w_picpath                            || url          | http://192.168.56.11:9292        |+--------------+----------------------------------+[root@linux-node1 ~]# openstack endpoint create --region RegionOne p_w_picpath internal http://192.168.56.11:9292+--------------+----------------------------------+| Field        | Value                            |+--------------+----------------------------------+| enabled      | True                             || id           | 0bafb4e5d90745d789a16c97fc3f5688 || interface    | internal                         || region       | RegionOne                        || region_id    | RegionOne                        || service_id   | c9fd28645efe45faa2a9cf2f2cce623e || service_name | glance                           || service_type | p_w_picpath                            || url          | http://192.168.56.11:9292        |+--------------+----------------------------------+[root@linux-node1 ~]# openstack endpoint create --region RegionOne p_w_picpath admin http://192.168.56.11:9292+--------------+----------------------------------+| Field        | Value                            |+--------------+----------------------------------+| enabled      | True                             || id           | 911d06d783094d62bf2cf97e4dd3fed6 || interface    | admin                            || region       | RegionOne                        || region_id    | RegionOne                        || service_id   | c9fd28645efe45faa2a9cf2f2cce623e || service_name | glance                           || service_type | p_w_picpath                            || url          | http://192.168.56.11:9292        |+--------------+----------------------------------+

測試
咱們能夠使用openstack list或者glance list進行查看

[root@linux-node1 ~]# openstack p_w_picpath list[root@linux-node1 ~]# glance p_w_picpath-list+----+------+| ID | Name |+----+------++----+------+

提示：若是此處沒有出現空，那麼這時候就須要看日誌了。

最後咱們能夠上傳一個鏡像進行測試

[root@linux-node1 ~]# wget http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img

咱們下載上面的鏡像進行測試

[root@linux-node1 ~]# openstack p_w_picpath 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       | 2016-11-17T10:34:14Z                                 || disk_format      | qcow2                                                || file             | /v2/p_w_picpaths/fc67361d-ad30-40b2-9d96-941e50fc17f5/file || id               | fc67361d-ad30-40b2-9d96-941e50fc17f5                 || min_disk         | 0                                                    || min_ram          | 0                                                    || name             | cirros                                               || owner            | 026a58f98402437fa95ef4a21fbd4d1a                     || protected        | False                                                || schema           | /v2/schemas/p_w_picpath                                    || size             | 13287936                                             || status           | active                                               || tags             |                                                      || updated_at       | 2016-11-17T10:34:14Z                                 || virtual_size     | None                                                 || visibility       | public                                               |+------------------+------------------------------------------------------+

#提示：若是沒有環境變量還須要source一下

檢查是否上傳成功

[root@linux-node1 ~]# openstack p_w_picpath list+--------------------------------------+--------+--------+| ID                                   | Name   | Status |+--------------------------------------+--------+--------+| fc67361d-ad30-40b2-9d96-941e50fc17f5 | cirros | active |+--------------------------------------+--------+--------+[root@linux-node1 ~]# glance p_w_picpath-list+--------------------------------------+--------+| ID                                   | Name   |+--------------------------------------+--------+| fc67361d-ad30-40b2-9d96-941e50fc17f5 | cirros |+--------------------------------------+--------+[root@linux-node1 ~]# ls /var/lib/glance/p_w_picpaths/fc67361d-ad30-40b2-9d96-941e50fc17f5鏡像存放在/var/lib/glance/p_w_picpaths下

[M版本]
官方中文文檔：http://docs.openstack.org/mitaka/zh_CN/install-guide-rdo/keystone-install.html