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// Copyright (c) Contributors to the Apptainer project, established as
// Apptainer a Series of LF Projects LLC.
// For website terms of use, trademark policy, privacy policy and other
// project policies see https://lfprojects.org/policies
// This software is licensed under a 3-clause BSD license. Please consult the
// LICENSE.md file distributed with the sources of this project regarding your
// rights to use or distribute this software.
package cli
import (
"fmt"
"os"
"path/filepath"
"text/tabwriter"
"github.com/apptainer/apptainer/docs"
"github.com/apptainer/apptainer/internal/pkg/checkpoint/dmtcp"
"github.com/apptainer/apptainer/internal/pkg/instance"
"github.com/apptainer/apptainer/pkg/cmdline"
"github.com/apptainer/apptainer/pkg/sylog"
"github.com/spf13/cobra"
)
const listLine = "%s\n"
func init() {
addCmdInit(func(cmdManager *cmdline.CommandManager) {
cmdManager.RegisterCmd(CheckpointCmd)
cmdManager.RegisterSubCmd(CheckpointCmd, CheckpointListCmd)
cmdManager.RegisterSubCmd(CheckpointCmd, CheckpointInstanceCmd)
cmdManager.RegisterSubCmd(CheckpointCmd, CheckpointCreateCmd)
cmdManager.RegisterSubCmd(CheckpointCmd, CheckpointDeleteCmd)
cmdManager.RegisterFlagForCmd(&actionHomeFlag, CheckpointInstanceCmd)
})
}
func checkpointPreRun(_ *cobra.Command, _ []string) {
dmtcp.QuickInstallationCheck()
}
// CheckpointCmd represents the checkpoint command.
var CheckpointCmd = &cobra.Command{
Run: nil,
Use: docs.CheckpointUse,
Short: docs.CheckpointShort,
Long: docs.CheckpointLong,
Example: docs.CheckpointExample,
DisableFlagsInUseLine: true,
}
// CheckpointListCmd apptainer checkpoint list
var CheckpointListCmd = &cobra.Command{
Args: cobra.ExactArgs(0),
PreRun: checkpointPreRun,
Run: func(_ *cobra.Command, _ []string) {
m := dmtcp.NewManager()
entries, err := m.List()
if err != nil {
sylog.Fatalf("Failed to get checkpoint entries: %v", err)
}
tw := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
fmt.Fprintf(tw, listLine, "NAME")
for _, e := range entries {
fmt.Fprintf(tw, listLine, filepath.Base(e.Path()))
}
tw.Flush()
},
Use: docs.CheckpointListUse,
Short: docs.CheckpointListShort,
Long: docs.CheckpointListLong,
Example: docs.CheckpointListExample,
DisableFlagsInUseLine: true,
}
// CheckpointCreateCmd apptainer checkpoint create
var CheckpointCreateCmd = &cobra.Command{
Args: cobra.ExactArgs(1),
PreRun: checkpointPreRun,
Run: func(_ *cobra.Command, args []string) {
name := args[0]
m := dmtcp.NewManager()
_, err := m.Get(name)
if err == nil {
sylog.Fatalf("Checkpoint %q already exists.", name)
}
_, err = m.Create(name)
if err != nil {
sylog.Fatalf("Failed to create checkpoint: %s", err)
}
sylog.Infof("Checkpoint %q created.", name)
},
Use: docs.CheckpointCreateUse,
Short: docs.CheckpointCreateShort,
Long: docs.CheckpointCreateLong,
Example: docs.CheckpointCreateExample,
DisableFlagsInUseLine: true,
}
// CheckpointDeleteCmd apptainer checkpoint delete
var CheckpointDeleteCmd = &cobra.Command{
Args: cobra.ExactArgs(1),
PreRun: checkpointPreRun,
Run: func(_ *cobra.Command, args []string) {
name := args[0]
m := dmtcp.NewManager()
err := m.Delete(name)
if err != nil {
sylog.Fatalf("Failed to delete checkpoint entries: %v", err)
}
sylog.Infof("Checkpoint %q deleted.", name)
},
Use: docs.CheckpointDeleteUse,
Short: docs.CheckpointDeleteShort,
Long: docs.CheckpointDeleteLong,
Example: docs.CheckpointDeleteExample,
DisableFlagsInUseLine: true,
}
var CheckpointInstanceCmd = &cobra.Command{
Args: cobra.ExactArgs(1),
PreRun: func(cmd *cobra.Command, args []string) {
checkpointPreRun(cmd, args)
actionPreRun(cmd, args)
},
Run: func(cmd *cobra.Command, args []string) {
instanceName := args[0]
file, err := instance.Get(instanceName, instance.AppSubDir)
if err != nil {
sylog.Fatalf("Could not retrieve instance file: %s", err)
}
if file.Checkpoint == "" {
sylog.Fatalf("This instance was not started with checkpointing.")
}
m := dmtcp.NewManager()
e, err := m.Get(file.Checkpoint)
if err != nil {
sylog.Fatalf("Failed to get checkpoint entry: %v", err)
}
port, err := e.CoordinatorPort()
if err != nil {
sylog.Fatalf("Failed to parse port file for coordinator port: %s", err)
}
sylog.Infof("Using checkpoint %q", e.Name())
a := append([]string{"/.singularity.d/actions/exec"}, dmtcp.CheckpointArgs(port)...)
if err := launchContainer(cmd, "instance://"+args[0], a, "", -1); err != nil {
sylog.Fatalf("%s", err)
}
},
Use: docs.CheckpointInstanceUse,
Short: docs.CheckpointInstanceShort,
Long: docs.CheckpointInstanceLong,
Example: docs.CheckpointInstanceExample,
DisableFlagsInUseLine: true,
}
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