How to perform openstack docking ceph by kolla-ansible
This post is about how kolla-ansible performs openstack docking with ceph. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.
1. Prerequisites:
Deployed openstack and ceph clusters
Storage pool created
Prepare ceph.conf,(Glance, Cinder, Nova)keyring: as shown below
2. Set up ceph client authentication, and execute the following command on one of the ceph nodes:
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 rwx pool=images'
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'
3. Connect to the glance service and perform the following operations:
ceph auth get-or-create client.glance
The requested URL/etc/kolla/config/glance/ceph.client.glance.keyring was not found on this server.
To connect to the finder service, perform the following operations:
ceph auth get-or-create client.cinder
Save the output to/etc/kolla/config/cinder-backup/ceph.client.cinder.keyring
/etc/kolla/config/cinder/cinder-volume/ceph.client.cinder.keyring
ceph auth get-or-create client.cinder-backup
Save the output to/etc/kolla/config/finder/cinder-backup/ceph.client.cinder-backup.keyring
ceph auth get-or-create client.nova
Save the output to/etc/kolla/config/nova/ceph.client.cinder.keyring
4. Place the ceph.conf configuration file in/etc/kolla/config/cinder/, glare/, nova/,
Edit/etc/kolla/config/glance/glance-api.conf and add the following
[DEFAULT]
show_image_direct_url = True
[glance_store]
stores = rbd
default_store = rbd
rbd_store_pool = images
rbd_store_user = glance
rbd_store_ceph_conf = /etc/ceph/ceph.conf
Edit/etc/kolla/config/cinder/cinder-volume.conf and add the following
[DEFAULT]
enabled_backends=rbd-1
[rbd-1]
rbd_ceph_conf=/etc/ceph/ceph.conf
rbd_user=cinder
backend_host=rbd:volumes
rbd_pool=volumes
volume_backend_name=rbd-1
volume_driver=cinder.volume.drivers.rbd.RBDDriver
rbd_secret_uuid = {{ cinder_rbd_secret_uuid }}
Note: cinder_rbd_secret_uuid must be found in the file/etc/kolla/passwords.yml
7. Edit/etc/kolla/config/cinder/cinder-backup.conf and add the following
[DEFAULT]
backup_ceph_conf=/etc/ceph/ceph.conf
backup_ceph_user=cinder
backup_ceph_chunk_size = 134217728
backup_ceph_pool=backups
backup_driver = cinder.backup.drivers.ceph
backup_ceph_stripe_unit = 0
backup_ceph_stripe_count = 0
restore_discard_excess_bytes = true
Edit/etc/kolla/config/nova/nova-compute.conf and add the following
[libvirt]
virt_type=qemu
images_rbd_pool=vms
images_type=rbd
images_rbd_ceph_conf=/etc/ceph/ceph.conf
rbd_user=nova
Note: rbd_user may vary depending on your environment.
9. Execute kolla-ansible -i multinode reconfigure
10. Restart the container
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