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|
package containers
import (
"fmt"
"os"
"text/tabwriter"
"text/template"
"github.com/containers/libpod/v2/cmd/podman/registry"
"github.com/containers/libpod/v2/cmd/podman/utils"
"github.com/containers/libpod/v2/cmd/podman/validate"
"github.com/containers/libpod/v2/pkg/domain/entities"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
var (
mountDescription = `podman mount
Lists all mounted containers mount points if no container is specified
podman mount CONTAINER-NAME-OR-ID
Mounts the specified container and outputs the mountpoint
`
mountCommand = &cobra.Command{
Use: "mount [flags] [CONTAINER...]",
Short: "Mount a working container's root filesystem",
Long: mountDescription,
RunE: mount,
Args: func(cmd *cobra.Command, args []string) error {
return validate.CheckAllLatestAndCIDFile(cmd, args, true, false)
},
Annotations: map[string]string{
registry.UnshareNSRequired: "",
registry.ParentNSRequired: "",
},
}
containerMountCommmand = &cobra.Command{
Use: mountCommand.Use,
Short: mountCommand.Short,
Long: mountCommand.Long,
RunE: mountCommand.RunE,
Args: mountCommand.Args,
Annotations: mountCommand.Annotations,
}
)
var (
mountOpts entities.ContainerMountOptions
)
func mountFlags(flags *pflag.FlagSet) {
flags.BoolVarP(&mountOpts.All, "all", "a", false, "Mount all containers")
flags.StringVar(&mountOpts.Format, "format", "", "Print the mounted containers in specified format (json)")
flags.BoolVar(&mountOpts.NoTruncate, "notruncate", false, "Do not truncate output")
}
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode},
Command: mountCommand,
})
mountFlags(mountCommand.Flags())
validate.AddLatestFlag(mountCommand, &mountOpts.Latest)
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode},
Command: containerMountCommmand,
Parent: containerCmd,
})
mountFlags(containerMountCommmand.Flags())
validate.AddLatestFlag(containerMountCommmand, &mountOpts.Latest)
}
func mount(_ *cobra.Command, args []string) error {
var (
errs utils.OutputErrors
)
reports, err := registry.ContainerEngine().ContainerMount(registry.GetContext(), args, mountOpts)
if err != nil {
return err
}
if len(args) > 0 || mountOpts.Latest || mountOpts.All {
for _, r := range reports {
if r.Err == nil {
fmt.Println(r.Path)
continue
}
errs = append(errs, r.Err)
}
return errs.PrintErrors()
}
switch mountOpts.Format {
case "json":
return printJSON(reports)
case "":
// do nothing
default:
return errors.Errorf("unknown --format argument: %s", mountOpts.Format)
}
mrs := make([]mountReporter, 0, len(reports))
for _, r := range reports {
mrs = append(mrs, mountReporter{r})
}
row := "{{.ID}} {{.Path}}\n"
format := "{{range . }}" + row + "{{end}}"
tmpl, err := template.New("mounts").Parse(format)
if err != nil {
return err
}
w := tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', 0)
defer w.Flush()
return tmpl.Execute(w, mrs)
}
func printJSON(reports []*entities.ContainerMountReport) error {
type jreport struct {
ID string `json:"id"`
Names []string
Mountpoint string `json:"mountpoint"`
}
jreports := make([]jreport, 0, len(reports))
for _, r := range reports {
jreports = append(jreports, jreport{
ID: r.Id,
Names: []string{r.Name},
Mountpoint: r.Path,
})
}
b, err := json.MarshalIndent(jreports, "", " ")
if err != nil {
return err
}
fmt.Println(string(b))
return nil
}
type mountReporter struct {
*entities.ContainerMountReport
}
func (m mountReporter) ID() string {
if mountOpts.NoTruncate {
return m.Id
}
return m.Id[0:12]
}
|
