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Add log and fs stats for Windows containers #62266
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Original file line number | Diff line number | Diff line change |
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// +build windows | ||
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/* | ||
Copyright 2014 The Kubernetes Authors. | ||
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Licensed under the Apache License, Version 2.0 (the "License"); | ||
you may not use this file except in compliance with the License. | ||
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 | ||
distributed under the License is distributed on an "AS IS" BASIS, | ||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
See the License for the specific language governing permissions and | ||
limitations under the License. | ||
*/ | ||
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package fs | ||
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import ( | ||
"fmt" | ||
"syscall" | ||
"unsafe" | ||
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"golang.org/x/sys/windows" | ||
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"k8s.io/apimachinery/pkg/api/resource" | ||
) | ||
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var ( | ||
modkernel32 = windows.NewLazySystemDLL("kernel32.dll") | ||
procGetDiskFreeSpaceEx = modkernel32.NewProc("GetDiskFreeSpaceExW") | ||
) | ||
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// FSInfo returns (available bytes, byte capacity, byte usage, total inodes, inodes free, inode usage, error) | ||
// for the filesystem that path resides upon. | ||
func FsInfo(path string) (int64, int64, int64, int64, int64, int64, error) { | ||
var freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes int64 | ||
var err error | ||
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ret, _, err := syscall.Syscall6( | ||
procGetDiskFreeSpaceEx.Addr(), | ||
4, | ||
uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(path))), | ||
uintptr(unsafe.Pointer(&freeBytesAvailable)), | ||
uintptr(unsafe.Pointer(&totalNumberOfBytes)), | ||
uintptr(unsafe.Pointer(&totalNumberOfFreeBytes)), | ||
0, | ||
0, | ||
) | ||
if ret == 0 { | ||
return 0, 0, 0, 0, 0, 0, err | ||
} | ||
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return freeBytesAvailable, totalNumberOfBytes, totalNumberOfBytes - freeBytesAvailable, 0, 0, 0, nil | ||
} | ||
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// DiskUsage gets disk usage of specified path. | ||
func DiskUsage(path string) (*resource.Quantity, error) { | ||
_, _, usage, _, _, _, err := FsInfo(path) | ||
if err != nil { | ||
return nil, err | ||
} | ||
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used, err := resource.ParseQuantity(fmt.Sprintf("%d", usage)) | ||
if err != nil { | ||
return nil, fmt.Errorf("failed to parse fs usage %d due to %v", usage, err) | ||
} | ||
used.Format = resource.BinarySI | ||
return &used, nil | ||
} | ||
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// Always return zero since inodes is not supported on Windows. | ||
func Find(path string) (int64, error) { | ||
return 0, nil | ||
} |
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what's the difference between statsapi.cpustats and statsapi.containerstats?
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statsapi.cpustats is part of statsapi.containerstats and statsapi.podstats.
Because windows doesn't support cadvisor, we can't get pod level stats, so here sum all containers' stats belonging to the same Pod.
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got it. makes sense. thanks