OpenStack版本升级之Glance

soug

F版的一些变化
　　对依赖库的变化主要是添加了一个jsonschema并去掉了对xattr、pysendfile及swift1.4.8的依赖，如果采用swift作为存储后端需要有python-swiftclient，另外还需要F版的Keystone。配置方面主要把认证中间件的配置从paste配置中移到了server配置中。功能上添加了V2版的api接口。

备份与安装
　　停止现有服务，并备份数据

[iyunv@stackcc update_glance]# service glance-api stop
[iyunv@stackcc update_glance]# service glance-registry stop
[iyunv@stackcc update_glance]# cp -R /etc/glance ./glance-etc
[iyunv@stackcc update_glance]# mysqldump -uglance -p glance > glance.sql

　　下载并安装相关软件，因为我之前已经升级完了Keystone及Swift，这里只要安装jsonschema及Glance就可以了。

[iyunv@stackcc update_glance]# pip install jsonschema
[iyunv@stackcc update_glance]# git clone git://github.com/openstack/glance.git
[iyunv@stackcc update_glance]# cd glance
[iyunv@stackcc glance]# git checkout -b folsom origin/stable/folsom
[iyunv@stackcc glance]# python setup.py install > install.info
　　补充：如果还要在这台服务器上安装python-glanceclient的话，这里用pip install jsonschema==0.2安装就好，不然也会被删除重装的。原本采用以下方式安装glance的，安装后版本号不对成了0.0.0，我提了个bug在这（详情）

[iyunv@stackcc update_glance]# wget https://github.com/openstack/glance/archive/stable/folsom.zip
[iyunv@stackcc update_glance]# unzip folsom
[iyunv@stackcc update_glance]# cd glance-stable-folsom/
[iyunv@stackcc glance-stable-folsom]# python setup.py install
[iyunv@stackcc glance-stable-folsom]# ll /usr/lib/python2.6/site-packages/ | grep glance
drwxr-xr-x 4 root root 4096 Nov 14 17:00 glance-0.0.0-py2.6.egg
drwxr-xr-x. 4 root root 4096 Jun 2 21:56 glance-2012.1-py2.6.egg

配置Glance
　　将F的配置文件拷入到/etc/glance下替换掉原来的文件并修改相关配置，我的修改如下：

[iyunv@stackcc etc]# for file in *; do diff -u $file /etc/glance/$file; done
--- glance-api.conf 2012-11-14 19:12:12.011623218 +0800
+++ /etc/glance/glance-api.conf 2012-11-16 09:44:37.534701521 +0800
@@ -9,7 +9,7 @@
# in a request to add a new image to Glance? Known schemes are determined
# by the known_stores option below.
# Default: 'file'
-default_store = file
+default_store = swift
# List of which store classes and store class locations are
# currently known to glance at startup.
@@ -46,7 +46,7 @@
# SQLAlchemy connection string for the reference implementation
# registry server. Any valid SQLAlchemy connection string is fine.
# See: http://www.sqlalchemy.org/docs/05/reference/sqlalchemy/connections.html#sqlalchemy.create_engine
-sql_connection = sqlite:///glance.sqlite
+sql_connection = mysql://glance:glance@localhost/glance
# Period in seconds after which SQLAlchemy should reestablish its connection
# to the database.
@@ -137,7 +137,7 @@
# There are three methods of sending notifications, logging (via the
# log_file directive), rabbit (via a rabbitmq queue), qpid (via a Qpid
# message queue), or noop (no notifications sent, the default)
-notifier_strategy = noop
+notifier_strategy = qpid
# Configuration options if sending notifications via rabbitmq (these are
# the defaults)
@@ -192,7 +192,7 @@
# If you use Swift authentication service, set it to 'account':'user'
# where 'account' is a Swift storage account and 'user'
# is a user in that account
-swift_store_user = jdoe:jdoe
+swift_store_user = service:glance
# Auth key for the user authenticating against the
# Swift authentication service
@@ -203,7 +203,7 @@
swift_store_container = glance
# Do we create the container if it does not exist?
-swift_store_create_container_on_put = False
+swift_store_create_container_on_put = True
# What size, in MB, should Glance start chunking image files
# and do a large object manifest in Swift? By default, this is
@@ -311,16 +311,16 @@
auth_host = 127.0.0.1
auth_port = 35357
auth_protocol = http
-admin_tenant_name = %SERVICE_TENANT_NAME%
-admin_user = %SERVICE_USER%
-admin_password = %SERVICE_PASSWORD%
+admin_tenant_name = service
+admin_user = glance
+admin_password = service123
[paste_deploy]
# Name of the paste configuration file that defines the available pipelines
-#config_file = glance-api-paste.ini
+config_file = /etc/glance/glance-api-paste.ini
# Partial name of a pipeline in your paste configuration file with the
# service name removed. For example, if your paste section name is
# [pipeline:glance-api-keystone], you would configure the flavor below
# as 'keystone'.
-#flavor=
+flavor=keystone
--- glance-registry.conf 2012-11-14 19:10:51.688606629 +0800
+++ /etc/glance/glance-registry.conf 2012-11-14 19:48:43.600719378 +0800
@@ -25,7 +25,7 @@
# SQLAlchemy connection string for the reference implementation
# registry server. Any valid SQLAlchemy connection string is fine.
# See: http://www.sqlalchemy.org/docs/05/reference/sqlalchemy/connections.html#sqlalchemy.create_engine
-sql_connection = sqlite:///glance.sqlite
+sql_connection = mysql://glance:glance@localhost/glance
# Period in seconds after which SQLAlchemy should reestablish its connection
# to the database.
@@ -71,16 +71,16 @@
auth_host = 127.0.0.1
auth_port = 35357
auth_protocol = http
-admin_tenant_name = %SERVICE_TENANT_NAME%
-admin_user = %SERVICE_USER%
-admin_password = %SERVICE_PASSWORD%
+admin_tenant_name = service
+admin_user = glance
+admin_password = service123
[paste_deploy]
# Name of the paste configuration file that defines the available pipelines
-#config_file = glance-registry-paste.ini
+config_file = /etc/glance/glance-registry-paste.ini
# Partial name of a pipeline in your paste configuration file with the
# service name removed. For example, if your paste section name is
# [pipeline:glance-registry-keystone], you would configure the flavor below
# as 'keystone'.
-#flavor=
+flavor=keystone

　　注意这里的config_file文件的路径要写绝对路径，不然在用glance index命令时就只出了个标题行，就没其它内容了，也不返回。

同步数据库并启动相关服务

[iyunv@stackcc glance]# glance-manage db_sync
[iyunv@stackcc glance]# glance-manage db_version
15
[iyunv@stackcc glance]# service glance-api start
[iyunv@stackcc glance]# service glance-registry start
[iyunv@stackcc glance]# service glance-api status
glance-api (pid  13218) is running...
[iyunv@stackcc glance]# service glance-registry status
glance-registry (pid  13331) is running...
　　测试命令glance index发现有警告，可以通过pip install python-glanceclient安装新版的glanceclient并且会依赖安装python-keystoneclient，替换我刚安装的jsonschema为0.2版本，升级prettytable==0.6.1，如果机器上安装有E版的novaclient会冲突，可以用pip uninstall python-novaclient直接卸载再用pip install python-novaclient安装新版（这里我尝试不卸载老版直接安装没有反应）。最后如果要使用v2版api还需要调整Keystone中的endpoint。
　　北方工业大学 |
云计算研究中心 | 姜永