作者：张华 发表于：2021-12-17
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( http://blog.csdn.net/quqi99 )
本文是将image存储到cinder的LVM存储中，主要为了测试：https://review.opendev.org/c/openstack/charm-glance/+/814882
注：其实这个标题叫’Glance with Cinder iSCSI/FC-backed storage’比’Glance with Cinder LVM-backed storage’要更合适，因为：
- cinder支持iscsi, ceph, 虽然glance可以直接使用ceph，但这里却没有测试glance->cinder->ceph这条路径，所以保险起见，应该排除cinder ceph
- lvm是本地存储，远程使用需结合iscsi, 使用’iSCSI/FC’也算是包括了lvm吧，至于nfs也可通过iscsi来使用的
Setup test env
使用juju来部署的话，“juju config cinder block-device=‘None’”将确保cinder charm默认创建LVM-default这个backend, 除了部署cinder-lvm, "juju add-relation cinder:cinder-volume-service glance:cinder-volume-service"这句也很重要
juju config cinder block-device='None'
juju deploy glance
juju add-relation glance keystone
juju add-relation glance mysql
juju add-relation glance nova-cloud-controller
juju add-relation cinder:image-service glance:image-service
juju add-relation cinder:cinder-volume-service glance:cinder-volume-service
juju add-relation cinder-lvm:storage-backend cinder:storage-backend
# First create a common openstack env with cinder and glance, but without ceph
juju deploy cinder-lvm
juju config cinder-lvm block-device='/tmp/vol1|4G'
juju config cinder-lvm overwrite=true
juju config cinder-lvm ephemeral-unmount='/mnt'
juju config cinder-lvm allocation-type='auto'
juju config cinder block-device='None'
juju add-relation cinder-lvm cinder
juju add-relation cinder:cinder-volume-service glance:cinder-volume-service
#https://review.opendev.org/c/openstack/charm-glance/+/814882
git clone https://github.com/openstack/charm-glance.git glance
cd glance
git fetch https://review.opendev.org/openstack/charm-glance refs/changes/82/814882/11 && git checkout FETCH_HEAD
juju upgrade-charm glance --path $PWD
#openstack volume type create cinder --property volume_backend_name=LVM-default
cinder type-create cinder && cinder type-key cinder set volume_backend_name=LVM-default
cinder service-list
cinder create --display_name test_volume --volume_type cinder 1
juju config glance cinder-volume-types='cinder'# Glance with Multiple Backend Stores
#http_proxy=http://squid.internal:3128 wget http://download.cirros-cloud.net/0.5.1/cirros-0.5.1-x86_64-disk.img
#openstack image create --disk-format=qcow2 --container-format=bare --public cirros --file ./cirros-0.5.1-x86_64-disk.img
glance --os-image-api-version 2 image-create --name cirros --disk-format qcow2 --container-format bare --file ./cirros-0.5.1-x86_64-disk.img --store cinder
Verify configuration
cinder.conf
[DEFAULT]
enabled_backends = LVM-default
[LVM-default]
volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver
volumes_dir = /var/lib/cinder/volumes
volume_name_template = volume-%s
volume_group = cinder-volumes-default
volume_backend_name = LVM-default
lvm_type = auto
volume_clear = zero
volume_clear_size = 0glance-api.conf
[DEFAULT]
enabled_backends = local:file, cinder:cinder
[glance_store]
default_backend = cinder
[cinder]
cinder_volume_type = cinderjuju run -u mysql/leader leader-get mysql.passwd
sudo mysql -uroot -p
select * from images;
mysql> select image_id,value from image_locations;
+--------------------------------------+-----------------------------------------------+
| image_id | value |
+--------------------------------------+-----------------------------------------------+
| 7b6d1e53-6bc0-4080-b7d5-5563c306706f | cinder://d6c1d34d-9ae6-40d8-a7ec-448c6c96e1fb |
+--------------------------------------+-----------------------------------------------+