forked from rook/rook
Santosh Pillai
4041868e2e
Creates hybrid crush rule for choosing Primary OSD for high performing SSD devices and remaining OSD for low performance HDD devices. Signed-off-by: Santosh Pillai <sapillai@redhat.com>
59 lines
1.8 KiB
Go
59 lines
1.8 KiB
Go
/*
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Copyright 2020 The Rook Authors. All rights reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package client
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import (
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"encoding/json"
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"github.com/pkg/errors"
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"github.com/rook/rook/pkg/clusterd"
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)
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// GetDeviceClasses gets the available device classes.
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func GetDeviceClasses(context *clusterd.Context, clusterInfo *ClusterInfo) ([]string, error) {
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args := []string{"osd", "crush", "class", "ls"}
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cmd := NewCephCommand(context, clusterInfo, args)
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buf, err := cmd.Run()
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if err != nil {
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return nil, errors.Wrapf(err, "failed to get deviceclasses. %s", string(buf))
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}
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var deviceclass []string
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if err := json.Unmarshal(buf, &deviceclass); err != nil {
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return nil, errors.Wrap(err, "failed to unmarshal osd crush class list response")
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}
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return deviceclass, nil
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}
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// GetDeviceClassOSDs gets the OSDs associated with a device class.
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func GetDeviceClassOSDs(context *clusterd.Context, clusterInfo *ClusterInfo, deviceClass string) ([]int, error) {
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args := []string{"osd", "crush", "class", "ls-osd", deviceClass}
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cmd := NewCephCommand(context, clusterInfo, args)
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buf, err := cmd.Run()
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if err != nil {
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return nil, errors.Wrapf(err, "failed to get device class osd. %s", string(buf))
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}
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var osds []int
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if err := json.Unmarshal(buf, &osds); err != nil {
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return nil, errors.Wrap(err, "failed to unmarshal device class osd response")
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}
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return osds, nil
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}
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