openstack K版本和ceph对接
本次环境：openstack（K版本）：控制和计算各一台，并且安装到dashboard，可以正常创建虚拟机（搭建过程建官方http://docs.openstack.org/kilo/install-guide/install/yum/content/）
ceph： 共3台，两台节点一台desploy部署机（搭建过程建官方http://ceph.com/）
下面在控制节点安装cinder,在控制节点上操作：
##创建数据库并且授权
# mysql
Welcome to the MariaDB monitor.Commands end with ; or \g.
Your MariaDB connection id is 2439
Server version: 5.5.47-MariaDB MariaDB Server
Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> CREATE DATABASE cinder;
Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'localhost' \
-> IDENTIFIED BY 'awcloud';
Query OK, 0 rows affected (0.15 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'%' \
-> IDENTIFIED BY 'awcloud';
Query OK, 0 rows affected (0.01 sec)
##创建用户、端点等信息
# source admin-openrc.sh
# openstack user create --password-prompt cinder
# openstack role add --project service --user cinder admin
# openstack service create --name cinder \
> --description "OpenStack Block Storage" volume
# openstack service create --name cinderv2 \
> --description "OpenStack Block Storage" volumev2
# openstack endpoint create \
> --publicurl http://controller:8776/v2/%\(tenant_id\)s \
> --internalurl http://controller:8776/v2/%\(tenant_id\)s \
> --adminurl http://controller:8776/v2/%\(tenant_id\)s \
> --region RegionOne \
> volume
# openstack endpoint create \
> --publicurl http://controller:8776/v2/%\(tenant_id\)s \
> --internalurl http://controller:8776/v2/%\(tenant_id\)s \
> --adminurl http://controller:8776/v2/%\(tenant_id\)s \
> --region RegionOne \
> volumev2
安装cinder服务
# yum install openstack-cinder python-cinderclient python-oslo-db -y
修改配置文件
# cp /etc/cinder/cinder.conf /etc/cinder/cinder.conf.bk
# vim /etc/cinder/cinder.conf
# egrep -v "^#|^$" /etc/cinder/cinder.conf
rpc_backend = rabbit
auth_strategy = keystone
my_ip = 192.168.8.199
verbose = True
connection = mysql://cinder:awcloud@controller/cinder
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = cinder
password = awcloud
rabbit_host = controller
rabbit_userid = guest
rabbit_password = guest
lock_path = /var/lock/cinder
重启服务
# systemctl enable openstack-cinder-api.service openstack-cinder-scheduler.service
# systemctl start openstack-cinder-api.service openstack-cinder-scheduler.service
###为contronller节点配置实现接管ceph
#yum install python-rbd ceph-common -y
# yum install python-rbd ceph-common -y
把验证文件和ceph的配置文件拷贝到控制节点
# scp ceph.client.admin.keyring ceph.conf 192.168.8.199:/etc/ceph/
此时在controller节点执行ceph命令是否成功
# ceph -s
cluster 3155ed83-9e92-43da-90f1-c7715148f48f
health HEALTH_OK
monmap e1: 1 mons at {node1=192.168.8.35:6789/0}
election epoch 2, quorum 0 node1
osdmap e47: 2 osds: 2 up, 2 in
pgmap v1325: 64 pgs, 1 pools, 0 bytes data, 0 objects
80896 kB used, 389 GB / 389 GB avail
64 active+clean
##为cinder、nova、glance创建volume
# ceph osd pool create vms
# ceph osd pool create volumes 50
pool 'volumes' created
# ceph osd pool create images 50
pool 'images' created
# ceph osd pool create backups 50
pool 'backups' created
# ceph osd pool create vms 50
pool 'vms' created
#
为ceph客户端做认证
# ceph auth get-or-create client.cinder mon 'allow r' osd 'allow class-read object_prefix rbd_children, allow rwx pool=volumes, allow rwx pool=vms, allow rx pool=images'
rbd_children, allow rwx pool=images'
ceph auth get-or-create client.cinder-backup mon 'allow r' osd 'allow class-read object_prefix rbd_children, allow rwx pool=backups'
# ceph auth get-or-create client.glance mon 'allow r' osd 'allow class-read object_prefix rbd_children, allow rwx pool=images'
# ceph auth get-or-create client.cinder-backup mon 'allow r' osd 'allow class-read object_prefix rbd_children, allow rwx pool=backups'
#
##创建用户的认证文件
# ceph auth get-or-create client.glance|tee /etc/ceph/ceph.client.glance.keyring
key = AQANyXRXb5l7CRAA2yVyM92BIm+U3QDseZGqow==
# chown glance:glance /etc/ceph/ceph.client.glance.keyring
# ceph auth get-or-create client.cinder | sudo tee /etc/ceph/ceph.client.cinder.keyring
key = AQDkyHRXvOTwARAAbRha/MtmqPcJm0RF9jcrsQ==
# sudo chown cinder:cinder /etc/ceph/ceph.client.cinder.keyring
# ceph auth get-or-create client.cinder-backup |sudo tee /etc/ceph/ceph.client.cinder-backup.keyring
key = AQAVyXRXQDKFBRAAtY9DuiGGRSTBDu0MRckXbA==
#chown cinder:cinder /etc/ceph/ceph.client.cinder-backup.keyring
#
#
##把/etc/ceph/ceph.client.cinder.keyring用户认证文件拷贝到计算节点
# scp /etc/ceph/ceph.client.cinder.keyring compute:/etc/ceph/
##在compute节点创建libvirt的key
# uuidgen
457eb676-33da-42ec-9a8c-9293d545c337
cat > secret.xml <<EOF
<secret ephemeral='no' private='no'>
<uuid>457eb676-33da-42ec-9a8c-9293d545c337</uuid>
<usage type='ceph'>
<name>client.cinder secret</name>
</usage>
</secret>
EOF
# sudo virsh secret-define --file secret.xml
# sudo virsh secret-set-value --secret 457eb676-33da-42ec-9a8c-9293d545c337 --base64 $(cat client.cinder.key)
###为glance对接ceph
vi /etc/glance/glance-api.conf
...
default_store=rbd
rbd_store_user=glance
rbd_store_pool=images
show_image_direct_url=True
# systemctl restart openstack-glance-api.service
# systemctl restart openstack-glance-registry.service
##为cinder和ceph对接
# vim /etc/cinder/cinder.conf
volume_driver=cinder.volume.drivers.rbd.RBDDriver
rbd_pool=volumes
rbd_ceph_conf=/etc/ceph/ceph.conf
rbd_flatten_volume_from_snapshot=false
rbd_max_clone_depth=5
glance_api_version=2
rbd_user=cinder
rbd_secret_uuid=457eb676-33da-42ec-9a8c-9293d545c337
# systemctl restart openstack-cinder-api.service
# systemctl restart openstack-glance-registry.service
##为cinder backup对接ceph
backup_driver=cinder.backup.drivers.ceph
backup_ceph_conf=/etc/ceph/ceph.conf
backup_ceph_user=cinder-backup
backup_ceph_chunk_size=134217728
backup_ceph_pool=backups
backup_ceph_stripe_unit=0
backup_ceph_stripe_count=0
restore_discard_excess_bytes=true
# systemctl restart openstack-cinder-backup.service
为nova对接ceph
# vim/etc/nova/nova.conf
libvirt_images_type=rbd
libvirt_images_rbd_pool=vms
libvirt_images_rbd_ceph_conf=/etc/ceph/ceph.conf
rbd_user=cinder
rbd_secret_uuid=457eb676-33da-42ec-9a8c-9293d545c337
libvirt_inject_password=false
libvirt_inject_key=false
libvirt_inject_partition=-2
libvirt_live_migration_flag="VIR_MIGRATE_UNDEFINE_SOURCE,VIR_MIGRATE_PEER2PEER,VIR_MIGRATE_LIVE,VIR_MIGRATE_PERSIST_DEST"
# systemctl restart openstack-nova-compute.service
至此已经全部完成！下面进行验证操作：
创建一个虚拟机磁盘作用在云硬盘上，若出报错，
tailf/var/log/cinder/volume.log
2016-06-24 03:21:00.458 58907 ERROR oslo_messaging.rpc.dispatcher Exception during message handling: Permission denied: '/var/lock/cinder'
查看是否有这个目录
# ll /var/lock/cinder
ls: cannot access /var/lock/cinder: No such file or directory
##创建此目录
# mkdir /var/lock/cinder -p
# chown cinder.cinder /var/lock/cinder/
创建一台云主机，使用cinder命令验证
# rbd ls volumes
volume-8a1ff9c3-0dbd-41d7-a46b-ebaa45bc2230
现在创建的虚拟机已经在ceph集群中了。
参考文档：
http://docs.ceph.com/docs/master/rbd/rbd-openstack/
http://docs.openstack.org/kilo/install-guide/install/yum/content/cinder-install-controller-node.html
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