diff options
Diffstat (limited to 'runsc/cmd/checkpoint.go')
| -rw-r--r-- | runsc/cmd/checkpoint.go | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/runsc/cmd/checkpoint.go b/runsc/cmd/checkpoint.go index 927027c2b..e5fc7bdc4 100644 --- a/runsc/cmd/checkpoint.go +++ b/runsc/cmd/checkpoint.go @@ -16,6 +16,7 @@ package cmd import ( "os" + "path/filepath" "context" "flag" @@ -24,6 +25,9 @@ import ( "gvisor.googlesource.com/gvisor/runsc/container" ) +// File containing the container's saved image/state within the given image-path's directory. +const checkpointFileName = "checkpoint.img" + // Checkpoint implements subcommands.Command for the "checkpoint" command. type Checkpoint struct { imagePath string @@ -48,6 +52,13 @@ func (*Checkpoint) Usage() string { // SetFlags implements subcommands.Command.SetFlags. func (c *Checkpoint) SetFlags(f *flag.FlagSet) { f.StringVar(&c.imagePath, "image-path", "", "path to saved container image") + + // Unimplemented flags necessary for compatibility with docker. + var wp string + f.StringVar(&wp, "work-path", "", "ignored") + + var lr bool + f.BoolVar(&lr, "leave-running", false, "ignored") } // Execute implements subcommands.Command.Execute. @@ -70,10 +81,12 @@ func (c *Checkpoint) Execute(_ context.Context, f *flag.FlagSet, args ...interfa Fatalf("image-path flag must be provided") } + fullImagePath := filepath.Join(c.imagePath, checkpointFileName) + // Create the image file and open for writing. - file, err := os.OpenFile(c.imagePath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0644) + file, err := os.OpenFile(fullImagePath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0644) if err != nil { - Fatalf("os.OpenFile(%q) failed: %v", c.imagePath, err) + Fatalf("os.OpenFile(%q) failed: %v", fullImagePath, err) } defer file.Close() |