glance 迁移

glance 迁移
之前glanc在151上，现将迁移到152上

1、停止 151上的服务

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systemctl list-unit-files|grep glance systemctl stop openstack-glance-api.service openstack-glance-registry.service systemctl disable openstack-glance-api.service openstack-glance-registry.service

2、安装数据库及连接控件

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1	yum -y install mariadb mariadb-server python2-PyMySQL

3、导出数据库

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1	mysqldump -uroot -p'123456' -B glance > glance.sql

修改数据库配置文件

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vim /etc/my.cnf.d/openstack.cnf [mysqld] bind-address = 192.168.1.152 default-storage-engine = innodb innodb_file_per_table max_connections = 4096 collation-server = utf8_general_ci character-set-server = utf8

启动数据库服务

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systemctl start mariadb.service systemctl enable mariadb.service   mysql_secure_installation

获取glance.sql导出文件，并导入到本地mysql

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scp 192.168.1.151:/home/glance.sql /home/   mysql MariaDB [(none)]> source /opt/glance.sql;   GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' IDENTIFIED BY 'glance'; GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' IDENTIFIED BY 'glance'; flush privileges;   show grants for 'glance';

3、安装 glance

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1	yum -y install openstack-glance

#编辑配置文件 

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/etc/glance/glance-api.conf   yum install openstack-utils -y cp /etc/glance/glance-api.conf{,.bak} grep '^[a-Z\[]' /etc/glance/glance-api.conf.bak >/etc/glance/glance-api.conf openstack-config --set /etc/glance/glance-api.conf database connection mysql+pymysql://glance:glance@192.168.1.152/glance openstack-config --set /etc/glance/glance-api.conf glance_store stores file,http openstack-config --set /etc/glance/glance-api.conf glance_store default_store file openstack-config --set /etc/glance/glance-api.conf glance_store filesystem_store_datadir /var/lib/glance/images/ openstack-config --set /etc/glance/glance-api.conf keystone_authtoken auth_uri http://controller:5000 openstack-config --set /etc/glance/glance-api.conf keystone_authtoken auth_url http://controller:35357 openstack-config --set /etc/glance/glance-api.conf keystone_authtoken memcached_servers controller:11211 openstack-config --set /etc/glance/glance-api.conf keystone_authtoken auth_type password openstack-config --set /etc/glance/glance-api.conf keystone_authtoken project_domain_name default openstack-config --set /etc/glance/glance-api.conf keystone_authtoken user_domain_name default openstack-config --set /etc/glance/glance-api.conf keystone_authtoken project_name service openstack-config --set /etc/glance/glance-api.conf keystone_authtoken username glance openstack-config --set /etc/glance/glance-api.conf keystone_authtoken password GLANCE_PASS openstack-config --set /etc/glance/glance-api.conf paste_deploy flavor keystone #编辑配置文件 /etc/glance/glance-registry.conf cp /etc/glance/glance-registry.conf{,.bak} grep '^[a-Z\[]' /etc/glance/glance-registry.conf.bak > /etc/glance/glance-registry.conf openstack-config --set /etc/glance/glance-registry.conf database connection mysql+pymysql://glance:glance@192.168.1.152/glance openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken auth_uri http://controller:5000 openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken auth_url http://controller:35357 openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken memcached_servers controller:11211 openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken auth_type password openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken project_domain_name default openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken user_domain_name default openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken project_name service openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken username glance openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken password GLANCE_PASS openstack-config --set /etc/glance/glance-registry.conf paste_deploy flavor keystone

4、迁移原有镜像文件
将原glance上的镜像文件，传输到compute2。

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1 2	[root@controller ~]# cd /var/lib/glance/images/ [root@controller ~]# rsync -avz `pwd`/ 10.0.0.32:`pwd`/

【注意权限】传输过后，在compute2上查看权限

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1 2	[root@compute2 ~]# cd /var/lib/glance/images/ [root@compute2 ~]# chown glance:glance *

5、修改现有keystone中 glance服务注册信息

备份数据库endpoint表数据

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1	[root@controller ~]# mysqldump keystone endpoint > endpoint.sql

修改keystone注册信息

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1 2	cp endpoint.sql{,.bak} sed -i 's#http://controller:9292#http://10.0.0.32:9292#g' endpoint.sql

重新将修改后的sql文件导入数据库

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1	[root@controller ~]# mysql keystone < endpoint.sql

6、修改nova节点配置文件
将所有的节点上的配置文件都进行修改

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1	sed -i 's#api_servers = http://controller:9292#api_servers = http://10.0.0.32:9292#g' /etc/nova/nova.conf

控制节点重启

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1	systemctl restart openstack-nova-api.service openstack-nova-consoleauth.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service

计算节点重启

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1	systemctl restart openstack-nova-compute.service

停掉glance原节点的服务

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1	systemctl stop openstack-glance-api.service openstack-glance-registry.service

7、验证操作

在copmute2节点启动glance服务

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1	systemctl start openstack-glance-api.service openstack-glance-registry.service

查看镜像列表

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[root@controller ~]# openstack image list +--------------------------------------+--------------+--------+ | ID | Name | Status | +--------------------------------------+--------------+--------+ | 4ba5d2d5-7880-48ab-b383-fa8f62277aef | centos6-init | active | | 38e8b762-79dd-45f5-be11-73e732663614 | centos6.9 | active | | 348896ad-1403-4d21-9a1d-c78526bdc6ae | cirros | active | +--------------------------------------+--------------+--------+

查看web界面中的镜像信息

8、上传centos7 的镜像
下载镜像到本地

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1	wget https://mirrors.ustc.edu.cn/centos-cloud/centos/7/images/CentOS-7-x86_64-GenericCloud-2009.qcow2

上传镜像到glance

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1	glance image-create --name "centos7laste" --file CentOS-7-x86_64-GenericCloud-2009.qcow2 --disk-format qcow2 --container-format bare --visibility public --progress

验证镜像

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[root@node152 ~]# openstack image list +--------------------------------------+--------------+--------+ | ID | Name | Status | +--------------------------------------+--------------+--------+ | 4ba5d2d5-7880-48ab-b383-fa8f62277aef | centos6-init | active | | 38e8b762-79dd-45f5-be11-73e732663614 | centos6.9 | active | | 822e5cb0-c744-441a-b723-9f24775fb622 | centos7laste | active | | 348896ad-1403-4d21-9a1d-c78526bdc6ae | cirros | active | +--------------------------------------+--------------+--------+