github.com/opencontainers/runc@v1.2.0-rc.1.0.20240520010911-492dc558cdd6/pause.go (about)

     1  package main
     2  
     3  import (
     4  	"github.com/sirupsen/logrus"
     5  	"github.com/urfave/cli"
     6  )
     7  
     8  var pauseCommand = cli.Command{
     9  	Name:  "pause",
    10  	Usage: "pause suspends all processes inside the container",
    11  	ArgsUsage: `<container-id>
    12  
    13  Where "<container-id>" is the name for the instance of the container to be
    14  paused. `,
    15  	Description: `The pause command suspends all processes in the instance of the container.
    16  
    17  Use runc list to identify instances of containers and their current status.`,
    18  	Action: func(context *cli.Context) error {
    19  		if err := checkArgs(context, 1, exactArgs); err != nil {
    20  			return err
    21  		}
    22  		rootlessCg, err := shouldUseRootlessCgroupManager(context)
    23  		if err != nil {
    24  			return err
    25  		}
    26  		if rootlessCg {
    27  			logrus.Warnf("runc pause may fail if you don't have the full access to cgroups")
    28  		}
    29  		container, err := getContainer(context)
    30  		if err != nil {
    31  			return err
    32  		}
    33  		return container.Pause()
    34  	},
    35  }
    36  
    37  var resumeCommand = cli.Command{
    38  	Name:  "resume",
    39  	Usage: "resumes all processes that have been previously paused",
    40  	ArgsUsage: `<container-id>
    41  
    42  Where "<container-id>" is the name for the instance of the container to be
    43  resumed.`,
    44  	Description: `The resume command resumes all processes in the instance of the container.
    45  
    46  Use runc list to identify instances of containers and their current status.`,
    47  	Action: func(context *cli.Context) error {
    48  		if err := checkArgs(context, 1, exactArgs); err != nil {
    49  			return err
    50  		}
    51  		rootlessCg, err := shouldUseRootlessCgroupManager(context)
    52  		if err != nil {
    53  			return err
    54  		}
    55  		if rootlessCg {
    56  			logrus.Warn("runc resume may fail if you don't have the full access to cgroups")
    57  		}
    58  		container, err := getContainer(context)
    59  		if err != nil {
    60  			return err
    61  		}
    62  		return container.Resume()
    63  	},
    64  }