125 lines
2.8 KiB
Go
125 lines
2.8 KiB
Go
package main
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import (
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"fmt"
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"os"
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"text/tabwriter"
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"github.com/codegangsta/cli"
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"github.com/docker/containerd/api/grpc/types"
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netcontext "golang.org/x/net/context"
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)
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var checkpointCommand = cli.Command{
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Name: "checkpoints",
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Usage: "list all checkpoints",
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Subcommands: []cli.Command{
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listCheckpointCommand,
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createCheckpointCommand,
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deleteCheckpointCommand,
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},
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Action: listCheckpoints,
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}
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var listCheckpointCommand = cli.Command{
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Name: "list",
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Usage: "list all checkpoints for a container",
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Action: listCheckpoints,
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}
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func listCheckpoints(context *cli.Context) {
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var (
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c = getClient(context)
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id = context.Args().First()
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)
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if id == "" {
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fatal("container id cannot be empty", 1)
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}
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resp, err := c.ListCheckpoint(netcontext.Background(), &types.ListCheckpointRequest{
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Id: id,
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})
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if err != nil {
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fatal(err.Error(), 1)
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}
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w := tabwriter.NewWriter(os.Stdout, 20, 1, 3, ' ', 0)
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fmt.Fprint(w, "NAME\tTCP\tUNIX SOCKETS\tSHELL\n")
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for _, c := range resp.Checkpoints {
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fmt.Fprintf(w, "%s\t%v\t%v\t%v\n", c.Name, c.Tcp, c.UnixSockets, c.Shell)
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}
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if err := w.Flush(); err != nil {
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fatal(err.Error(), 1)
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}
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}
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var createCheckpointCommand = cli.Command{
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Name: "create",
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Usage: "create a new checkpoint for the container",
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Flags: []cli.Flag{
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cli.BoolFlag{
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Name: "tcp",
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Usage: "persist open tcp connections",
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},
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cli.BoolFlag{
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Name: "unix-sockets",
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Usage: "perist unix sockets",
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},
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cli.BoolFlag{
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Name: "exit",
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Usage: "exit the container after the checkpoint completes successfully",
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},
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cli.BoolFlag{
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Name: "shell",
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Usage: "checkpoint shell jobs",
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},
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},
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Action: func(context *cli.Context) {
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var (
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containerID = context.Args().Get(0)
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name = context.Args().Get(1)
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)
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if containerID == "" {
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fatal("container id at cannot be empty", 1)
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}
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if name == "" {
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fatal("checkpoint name cannot be empty", 1)
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}
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c := getClient(context)
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if _, err := c.CreateCheckpoint(netcontext.Background(), &types.CreateCheckpointRequest{
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Id: containerID,
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Checkpoint: &types.Checkpoint{
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Name: name,
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Exit: context.Bool("exit"),
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Tcp: context.Bool("tcp"),
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Shell: context.Bool("shell"),
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UnixSockets: context.Bool("unix-sockets"),
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},
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}); err != nil {
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fatal(err.Error(), 1)
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}
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},
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}
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var deleteCheckpointCommand = cli.Command{
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Name: "delete",
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Usage: "delete a container's checkpoint",
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Action: func(context *cli.Context) {
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var (
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containerID = context.Args().Get(0)
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name = context.Args().Get(1)
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)
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if containerID == "" {
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fatal("container id at cannot be empty", 1)
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}
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if name == "" {
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fatal("checkpoint name cannot be empty", 1)
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}
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c := getClient(context)
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if _, err := c.DeleteCheckpoint(netcontext.Background(), &types.DeleteCheckpointRequest{
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Id: containerID,
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Name: name,
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}); err != nil {
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fatal(err.Error(), 1)
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}
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},
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}
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