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Update for docker checkpoint

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Signed-off-by: yuexiao-wang <wang.yuexiao@zte.com.cn>
This commit is contained in:
yuexiao-wang 2016-11-08 16:15:09 +08:00
parent 69efb4652c
commit 90ce77e46a
4 changed files with 11 additions and 10 deletions
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6
cli/command/checkpoint/create.go
View file

@ -20,7 +20,7 @@ func newCreateCommand(dockerCli *command.DockerCli) *cobra.Command {
var opts createOptions
cmd := &cobra.Command{
Use: "create CONTAINER CHECKPOINT",
Use: "create [OPTIONS] CONTAINER CHECKPOINT",
Short: "Create a checkpoint from a running container",
Args: cli.ExactArgs(2),
RunE: func(cmd *cobra.Command, args []string) error {
@ -31,8 +31,8 @@ func newCreateCommand(dockerCli *command.DockerCli) *cobra.Command {
}
flags := cmd.Flags()
flags.BoolVar(&opts.leaveRunning, "leave-running", false, "leave the container running after checkpoint")
flags.StringVarP(&opts.checkpointDir, "checkpoint-dir", "", "", "use a custom checkpoint storage directory")
flags.BoolVar(&opts.leaveRunning, "leave-running", false, "Leave the container running after checkpoint")
flags.StringVarP(&opts.checkpointDir, "checkpoint-dir", "", "", "Use a custom checkpoint storage directory")
return cmd
}

4
cli/command/checkpoint/list.go
View file

@ -20,7 +20,7 @@ func newListCommand(dockerCli *command.DockerCli) *cobra.Command {
var opts listOptions
cmd := &cobra.Command{
Use: "ls CONTAINER",
Use: "ls [OPTIONS] CONTAINER",
Aliases: []string{"list"},
Short: "List checkpoints for a container",
Args: cli.ExactArgs(1),
@ -30,7 +30,7 @@ func newListCommand(dockerCli *command.DockerCli) *cobra.Command {
}
flags := cmd.Flags()
flags.StringVarP(&opts.checkpointDir, "checkpoint-dir", "", "", "use a custom checkpoint storage directory")
flags.StringVarP(&opts.checkpointDir, "checkpoint-dir", "", "", "Use a custom checkpoint storage directory")
return cmd

4
cli/command/checkpoint/remove.go
View file

@ -17,7 +17,7 @@ func newRemoveCommand(dockerCli *command.DockerCli) *cobra.Command {
var opts removeOptions
cmd := &cobra.Command{
Use: "rm CONTAINER CHECKPOINT",
Use: "rm [OPTIONS] CONTAINER CHECKPOINT",
Aliases: []string{"remove"},
Short: "Remove a checkpoint",
Args: cli.ExactArgs(2),
@ -27,7 +27,7 @@ func newRemoveCommand(dockerCli *command.DockerCli) *cobra.Command {
}
flags := cmd.Flags()
flags.StringVarP(&opts.checkpointDir, "checkpoint-dir", "", "", "use a custom checkpoint storage directory")
flags.StringVarP(&opts.checkpointDir, "checkpoint-dir", "", "", "Use a custom checkpoint storage directory")
return cmd
}

7
experimental/checkpoint-restore.md
View file

@ -33,7 +33,7 @@ migration of a server from one machine to another. This is possible with the
current implementation, but not currently a priority (and so the workflow is
not optimized for the task).
## Using Checkpoint & Restore
## Using checkpoint & restore
A new top level command `docker checkpoint` is introduced, with three subcommands:
- `create` (creates a new checkpoint)
@ -48,7 +48,8 @@ The options for checkpoint create:
Create a checkpoint from a running container
--leave-running=false leave the container running after checkpoint
--leave-running=false Leave the container running after checkpoint
--checkpoint-dir Use a custom checkpoint storage directory
And to restore a container:
@ -71,7 +72,7 @@ in between running/checkpoint/restoring you should see that the counter
increases while the process is running, stops while it's checkpointed, and
resumes from the point it left off once you restore.
## Current Limitation
## Current limitation
seccomp is only supported by CRIU in very up to date kernels.