glance 迁移
之前glanc在151上，现将迁移到152上

1、停止 151上的服务

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

yum -y install mariadb mariadb-server python2-PyMySQL

3、导出数据库

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

修改数据库配置文件

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

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

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

yum -y install openstack-glance

#编辑配置文件 

/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。

[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

[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

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

修改keystone注册信息

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

[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

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

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

systemctl restart openstack-nova-compute.service

停掉glance原节点的服务

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

7、验证操作

在copmute2节点启动glance服务

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

查看镜像列表

[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

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

上传镜像到glance

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

[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 |
+--------------------------------------+--------------+--------+