93 lines
2.4 KiB
Go
93 lines
2.4 KiB
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"strings"
|
|
"text/tabwriter"
|
|
|
|
"github.com/containers/libpod/cmd/podman/cliconfig"
|
|
"github.com/containers/libpod/pkg/adapter"
|
|
"github.com/containers/libpod/pkg/util"
|
|
"github.com/pkg/errors"
|
|
"github.com/spf13/cobra"
|
|
)
|
|
|
|
var (
|
|
podTopCommand cliconfig.PodTopValues
|
|
|
|
podTopDescription = fmt.Sprintf(`Specify format descriptors to alter the output.
|
|
|
|
You may run "podman pod top -l pid pcpu seccomp" to print the process ID, the CPU percentage and the seccomp mode of each process of the latest pod.
|
|
%s`, getDescriptorString())
|
|
|
|
_podTopCommand = &cobra.Command{
|
|
Use: "top [flags] CONTAINER [FORMAT-DESCRIPTORS]",
|
|
Short: "Display the running processes of containers in a pod",
|
|
Long: podTopDescription,
|
|
RunE: func(cmd *cobra.Command, args []string) error {
|
|
podTopCommand.InputArgs = args
|
|
podTopCommand.GlobalFlags = MainGlobalOpts
|
|
podTopCommand.Remote = remoteclient
|
|
return podTopCmd(&podTopCommand)
|
|
},
|
|
Example: `podman top ctrID
|
|
podman top --latest
|
|
podman top --latest pid seccomp args %C`,
|
|
}
|
|
)
|
|
|
|
func init() {
|
|
podTopCommand.Command = _podTopCommand
|
|
podTopCommand.SetHelpTemplate(HelpTemplate())
|
|
podTopCommand.SetUsageTemplate(UsageTemplate())
|
|
flags := podTopCommand.Flags()
|
|
flags.BoolVarP(&podTopCommand.Latest, "latest,", "l", false, "Act on the latest pod podman is aware of")
|
|
flags.BoolVar(&podTopCommand.ListDescriptors, "list-descriptors", false, "")
|
|
markFlagHidden(flags, "list-descriptors")
|
|
}
|
|
|
|
func podTopCmd(c *cliconfig.PodTopValues) error {
|
|
var (
|
|
descriptors []string
|
|
)
|
|
args := c.InputArgs
|
|
|
|
if c.ListDescriptors {
|
|
descriptors, err := util.GetContainerPidInformationDescriptors()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
fmt.Println(strings.Join(descriptors, "\n"))
|
|
return nil
|
|
}
|
|
|
|
if len(args) < 1 && !c.Latest {
|
|
return errors.Errorf("you must provide the name or id of a running pod")
|
|
}
|
|
|
|
runtime, err := adapter.GetRuntime(getContext(), &c.PodmanCommand)
|
|
if err != nil {
|
|
return errors.Wrapf(err, "error creating libpod runtime")
|
|
}
|
|
defer runtime.DeferredShutdown(false)
|
|
|
|
if c.Latest {
|
|
descriptors = args
|
|
} else {
|
|
descriptors = args[1:]
|
|
}
|
|
|
|
w := tabwriter.NewWriter(os.Stdout, 5, 1, 3, ' ', 0)
|
|
psOutput, err := runtime.PodTop(c, descriptors)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, proc := range psOutput {
|
|
if _, err := fmt.Fprintln(w, proc); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return w.Flush()
|
|
}
|