[fedora atomic k8s] Add boot from volume support
Support boot from volume for Kubernetes all nodes (master and worker) so that user can create a big size root volume, which could be more flexible than using docker_volume_size. And user can specify the volume type so that user can leverage high performance storage, e.g. NVMe etc. And a new label etcd_volme_type is added as well so that user can set volume type for etcd volume. If the boot_volume_type or etcd_volume_type are not passed by labels, Magnum will try to read them from config option default_boot_volume_type and default_etcd_volume_type. A random volume type from Cinder will be used if those options are not set. Task: 30374 Story: 2005386 Co-Authorized-By: Feilong Wang<flwang@catalyst.net.nz> Change-Id: I39dd456bfa285bf06dd948d11c86867fc03d5afbchanges/34/621734/23
Mohammed Naser
5 years ago
committed by
Bharat Kunwar
parent
41768e0ae1
commit
cfe2753fd3
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# Copyright 2019 Catalyst Cloud Ltd.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo_config import cfg
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from oslo_log import log as logging
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from magnum.common import clients
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from magnum.common import exception
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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def get_default_docker_volume_type(context):
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return (CONF.cinder.default_docker_volume_type or
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_get_random_volume_type(context))
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def get_default_boot_volume_type(context):
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return (CONF.cinder.default_boot_volume_type or
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_get_random_volume_type(context))
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def get_default_etcd_volume_type(context):
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return (CONF.cinder.default_etcd_volume_type or
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_get_random_volume_type(context))
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def _get_random_volume_type(context):
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c_client = clients.OpenStackClients(context).cinder()
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volume_types = c_client.volume_types.list()
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if volume_types:
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return volume_types[0].name
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else:
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raise exception.VolumeTypeNotFound()
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---
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features:
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- |
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Support boot from volume for Kubernetes all nodes (master and worker)
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so that user can create a big size root volume, which could be more
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flexible than using docker_volume_size. And user can specify the
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volume type so that user can leverage high performance storage, e.g.
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NVMe etc. And a new label etcd_volme_type is added as well so that
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user can set volume type for etcd volume. If the boot_volume_type
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or etcd_volume_type are not passed by labels, Magnum will try to
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read them from config option default_boot_volume_type and
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default_etcd_volume_type. A random volume type from Cinder will
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be used if those options are not set.
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