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Merge pull request #72005 from dashpole/automated-cherry-pick-of-#595…
…25-upstream-release-1.11 Automated cherry pick of #59525: fix node and kubelet start times
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,44 @@ | ||
// +build darwin | ||
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||
/* | ||
Copyright 2018 The Kubernetes Authors. | ||
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 | ||
http://www.apache.org/licenses/LICENSE-2.0 | ||
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. | ||
*/ | ||
|
||
package util | ||
|
||
import ( | ||
"fmt" | ||
"syscall" | ||
"time" | ||
"unsafe" | ||
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"golang.org/x/sys/unix" | ||
) | ||
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// GetBootTime returns the time at which the machine was started, truncated to the nearest second | ||
func GetBootTime() (time.Time, error) { | ||
output, err := unix.SysctlRaw("kern.boottime") | ||
if err != nil { | ||
return time.Time{}, err | ||
} | ||
var timeval syscall.Timeval | ||
if len(output) != int(unsafe.Sizeof(timeval)) { | ||
return time.Time{}, fmt.Errorf("unexpected output when calling syscall kern.bootime. Expected len(output) to be %v, but got %v", | ||
int(unsafe.Sizeof(timeval)), len(output)) | ||
} | ||
timeval = *(*syscall.Timeval)(unsafe.Pointer(&output[0])) | ||
sec, nsec := timeval.Unix() | ||
return time.Unix(sec, nsec).Truncate(time.Second), nil | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,36 @@ | ||
// +build freebsd linux | ||
|
||
/* | ||
Copyright 2018 The Kubernetes Authors. | ||
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 | ||
http://www.apache.org/licenses/LICENSE-2.0 | ||
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. | ||
*/ | ||
|
||
package util | ||
|
||
import ( | ||
"fmt" | ||
"time" | ||
|
||
"golang.org/x/sys/unix" | ||
) | ||
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// GetBootTime returns the time at which the machine was started, truncated to the nearest second | ||
func GetBootTime() (time.Time, error) { | ||
currentTime := time.Now() | ||
var info unix.Sysinfo_t | ||
if err := unix.Sysinfo(&info); err != nil { | ||
return time.Time{}, fmt.Errorf("error getting system uptime: %s", err) | ||
} | ||
return currentTime.Add(-time.Duration(info.Uptime) * time.Second).Truncate(time.Second), nil | ||
} |
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