117 строки
3.8 KiB
Go
117 строки
3.8 KiB
Go
/*
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_____ _____ _____ ____ ______ _____ ------
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| --- | | | | |-----| |---- | | |-----| |----- ------
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| ____| |_____ | ____| | ____| | |_____| _____| |_____ |_____
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Licensed under the MIT License <http://opensource.org/licenses/MIT>.
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Copyright © 2020-2024 Microsoft Corporation. All rights reserved.
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Author : <blobfusedev@microsoft.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE
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*/
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package cmd
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import (
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"fmt"
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"os/exec"
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"regexp"
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"strings"
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"github.com/spf13/cobra"
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)
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var blobfuse2Pid string
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var healthMonStop = &cobra.Command{
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Use: "stop",
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Short: "Stops the health monitor binary associated with a given Blobfuse2 pid",
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Long: "Stops the health monitor binary associated with a given Blobfuse2 pid",
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SuggestFor: []string{"stp", "st"},
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FlagErrorHandling: cobra.ExitOnError,
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RunE: func(cmd *cobra.Command, args []string) error {
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blobfuse2Pid = strings.TrimSpace(blobfuse2Pid)
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if len(blobfuse2Pid) == 0 {
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return fmt.Errorf("pid of blobfuse2 process not given")
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}
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pid, err := getPid(blobfuse2Pid)
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if err != nil {
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return fmt.Errorf("failed to get health monitor pid")
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}
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err = stop(pid)
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if err != nil {
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return fmt.Errorf("failed to stop health monitor")
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}
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return nil
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},
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}
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// Attempts to get pid of the health monitor
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func getPid(blobfuse2Pid string) (string, error) {
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psAux := exec.Command("ps", "aux")
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out, err := psAux.Output()
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if err != nil {
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return "", err
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}
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processes := strings.Split(string(out), "\n")
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for _, process := range processes {
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if strings.Contains(process, "bfusemon") && strings.Contains(process, fmt.Sprintf("--pid=%s", blobfuse2Pid)) {
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re := regexp.MustCompile(`[-]?\d[\d,]*[\.]?[\d{2}]*`)
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pids := re.FindAllString(process, 1)
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if pids == nil {
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return "", fmt.Errorf("failed to process PID from %s", process)
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}
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pid := pids[0]
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fmt.Printf("Successfully got health monitor PID %s.\n", pid)
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return pid, nil
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}
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}
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return "", fmt.Errorf("no corresponding health monitor PID found")
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}
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// Attempts to kill all health monitors
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func stop(pid string) error {
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cliOut := exec.Command("kill", "-9", pid)
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_, err := cliOut.Output()
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if err != nil {
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return err
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} else {
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fmt.Println("Successfully stopped health monitor binary.")
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return nil
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}
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}
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func init() {
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healthMonCmd.AddCommand(healthMonStop)
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healthMonStop.AddCommand(healthMonStopAll)
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healthMonStop.Flags().StringVar(&blobfuse2Pid, "pid", "", "Blobfuse2 PID associated with the health monitor that should be stopped")
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_ = healthMonStop.MarkFlagRequired("pid")
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}
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