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vendor updates
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24
vendor/k8s.io/kubernetes/pkg/util/io/writer.go
generated
vendored
24
vendor/k8s.io/kubernetes/pkg/util/io/writer.go
generated
vendored
@ -21,7 +21,8 @@ import (
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"k8s.io/kubernetes/pkg/util/nsenter"
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"github.com/golang/glog"
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)
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@ -54,25 +55,20 @@ type NsenterWriter struct{}
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// WriteFile calls 'nsenter cat - > <the file>' and 'nsenter chmod' to create a
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// file on the host.
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func (writer *NsenterWriter) WriteFile(filename string, data []byte, perm os.FileMode) error {
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cmd := "nsenter"
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baseArgs := []string{
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"--mount=/rootfs/proc/1/ns/mnt",
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"--",
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}
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echoArgs := append(baseArgs, "sh", "-c", fmt.Sprintf("cat > %s", filename))
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glog.V(5).Infof("Command to write data to file: %v %v", cmd, echoArgs)
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command := exec.Command(cmd, echoArgs...)
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command.Stdin = bytes.NewBuffer(data)
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ne := nsenter.NewNsenter()
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echoArgs := []string{"-c", fmt.Sprintf("cat > %s", filename)}
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glog.V(5).Infof("nsenter: write data to file %s by nsenter", filename)
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command := ne.Exec("sh", echoArgs)
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command.SetStdin(bytes.NewBuffer(data))
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outputBytes, err := command.CombinedOutput()
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if err != nil {
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glog.Errorf("Output from writing to %q: %v", filename, string(outputBytes))
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return err
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}
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chmodArgs := append(baseArgs, "chmod", fmt.Sprintf("%o", perm), filename)
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glog.V(5).Infof("Command to change permissions to file: %v %v", cmd, chmodArgs)
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outputBytes, err = exec.Command(cmd, chmodArgs...).CombinedOutput()
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chmodArgs := []string{fmt.Sprintf("%o", perm), filename}
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glog.V(5).Infof("nsenter: change permissions of file %s to %s", filename, chmodArgs[0])
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outputBytes, err = ne.Exec("chmod", chmodArgs).CombinedOutput()
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if err != nil {
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glog.Errorf("Output from chmod command: %v", string(outputBytes))
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return err
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