c67ce887f2
- Add volume.MetricsProvider function to Volume interface. - Add volume.MetricsDu for providing metrics via executing "du". - Add volulme.MetricsNil for unsupported Volumes.
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
// +build linux
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/*
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Copyright 2014 The Kubernetes 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 util
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import (
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"syscall"
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)
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// FSInfo linux returns (available bytes, byte capacity, error) for the filesystem that
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// path resides upon.
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func FsInfo(path string) (int64, int64, error) {
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statfs := &syscall.Statfs_t{}
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err := syscall.Statfs(path, statfs)
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if err != nil {
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return 0, 0, err
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}
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// Available is blocks available * fragment size
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available := int64(statfs.Bavail) * int64(statfs.Frsize)
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// Capacity is total block count * fragment size
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capacity := int64(statfs.Blocks) * int64(statfs.Frsize)
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return available, capacity, nil
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}
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