glance镜像服务迁移流程_怎么重启glance

1.停止控制节点的glance服务

systemctl stop openstack-glance-api.service
systemctl stop openstack-glance-register.service
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2.删除这两个服务的自启动

systemctl disable openstack-glance-api.service
systemctl disable openstack-glance-register.service
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3.在新的节点，假如（glance：192.168.100.40）安装mariadb

yum install mariadb mariadb-server python2-PyMySQL -y
systemctl start mariadb
systemctl enable mariadb
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• 初始化配置

mysql_secure_installation  # 数据库密码设置为openstack
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4.新节点恢复glance数据库

• 1.控制节点glance数据库备份（原glance在控制节点上安装）

  mysqkdump -uroot -popensatck glance > /root/glance.sql
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• 2.新节点上还原数据库

  • 1.拷贝控制节点上的sql文件

    scp root@controller:/root/glance.sql .
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  • 2.执行数据库还原命令

    mysql -uroot -popenstack glance < /root/glance.sql
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• 3.数据库授权

  mysql -u root -popenstack
  GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' IDENTIFIED BY 'GLANCE_DBPASS';
  GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' IDENTIFIED BY 'GLANCE_DBPASS';
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5.新节点安装配置glance服务

• 1.下载服务

yum install openstack-glance openstack-utils -y
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• 2.拷贝控制节点上的配置文件

scp root@controller:/etc/glance/glance-api.conf /etc/glance/glance-api.conf
scp root@controller:/etc/glance/glance-registry.conf /etc/glance/glance-registry.conf
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• 3.修改配置文件内容

openstack-config --set /etc/glance/glance-api.conf database connection mysql+pymysql://glance:GLANCE_DBPASS@192.168.100.40/glance
openstack-config --set /etc/glance/glance-registry.conf database connection mysql+pymysql://glance:GLANCE_DBPASS@192.168.100.40/glance
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• 4.重启glance服务，并设置开机自启

systemctl start openstack-glance-api.service
systemctl start openstack-glance-register.service
    
systemctl enable openstack-glance-api.service
systemctl enable openstack-glance-register.service
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6.控制节点上的历史镜像文件迁移

• 1.新节点上，远程拷贝原镜像目录

scp root@controller:/var/lib/glance/images/* /var/lib/glance/images/
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• 2.修改所属组和所属用户

chown glance:glance /var/lib/glance/images/
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7.控制节点keystone服务目录数据修改（主要修改glance-api服务的端点信息）

mysql -uroot -popensatck
update endpoint set url = 'http://192.168.100.40:9292' where service_id = (select id from service where type = 'image');
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8.修改所有节点nova的配置文件

sed -i 's#http://controller:9292#http://192.168.100.40:9292#' /etc/nova/nova.conf
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9.重启服务

• 1.控制节点

systemctl restart openstack-nova-api
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• 2.所有计算节点

systemctl restart openstack-nova-compute
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10.验证

• 1.上传一个新镜像
• 2.启动一个新的实例