160 lines
3.6 KiB
Go
160 lines
3.6 KiB
Go
package main
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import (
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gocontext "context"
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"syscall"
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"github.com/Sirupsen/logrus"
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"github.com/containerd/console"
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"github.com/containerd/containerd"
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digest "github.com/opencontainers/go-digest"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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"github.com/pkg/errors"
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"github.com/urfave/cli"
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)
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type resizer interface {
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Resize(ctx gocontext.Context, w, h uint32) error
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}
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type killer interface {
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Kill(gocontext.Context, syscall.Signal) error
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}
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func withEnv(context *cli.Context) containerd.SpecOpts {
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return func(s *specs.Spec) error {
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env := context.StringSlice("env")
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if len(env) > 0 {
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s.Process.Env = append(s.Process.Env, env...)
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}
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return nil
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}
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}
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func withMounts(context *cli.Context) containerd.SpecOpts {
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return func(s *specs.Spec) error {
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for _, mount := range context.StringSlice("mount") {
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m, err := parseMountFlag(mount)
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if err != nil {
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return err
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}
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s.Mounts = append(s.Mounts, m)
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}
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return nil
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}
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}
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var runCommand = cli.Command{
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Name: "run",
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Usage: "run a container",
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ArgsUsage: "IMAGE ID [COMMAND] [ARG...]",
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Flags: []cli.Flag{
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cli.BoolFlag{
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Name: "tty,t",
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Usage: "allocate a TTY for the container",
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},
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cli.StringFlag{
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Name: "runtime",
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Usage: "runtime name (io.containerd.runtime.v1.linux, io.containerd.runtime.v1.windows, io.containerd.runtime.v1.com.vmware.linux)",
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Value: "io.containerd.runtime.v1.linux",
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},
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cli.BoolFlag{
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Name: "readonly",
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Usage: "set the containers filesystem as readonly",
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},
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cli.BoolFlag{
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Name: "net-host",
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Usage: "enable host networking for the container",
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},
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cli.StringSliceFlag{
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Name: "mount",
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Usage: "specify additional container mount (ex: type=bind,src=/tmp,dest=/host,options=rbind:ro)",
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},
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cli.StringSliceFlag{
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Name: "env",
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Usage: "specify additional container environment variables (i.e. FOO=bar)",
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},
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cli.BoolFlag{
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Name: "rm",
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Usage: "remove the container after running",
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},
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cli.StringFlag{
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Name: "checkpoint",
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Usage: "provide the checkpoint digest to restore the container",
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},
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},
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Action: func(context *cli.Context) error {
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var (
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err error
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checkpointIndex digest.Digest
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ctx, cancel = appContext(context)
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id = context.Args().Get(1)
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tty = context.Bool("tty")
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)
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defer cancel()
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if id == "" {
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return errors.New("container id must be provided")
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}
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if raw := context.String("checkpoint"); raw != "" {
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if checkpointIndex, err = digest.Parse(raw); err != nil {
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return err
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}
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}
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client, err := newClient(context)
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if err != nil {
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return err
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}
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container, err := newContainer(ctx, client, context)
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if err != nil {
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return err
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}
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if context.Bool("rm") {
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defer container.Delete(ctx, containerd.WithRootFSDeletion)
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}
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task, err := newTask(ctx, container, checkpointIndex, tty)
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if err != nil {
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return err
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}
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defer task.Delete(ctx)
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statusC := make(chan uint32, 1)
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go func() {
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status, err := task.Wait(ctx)
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if err != nil {
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logrus.WithError(err).Error("wait process")
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}
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statusC <- status
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}()
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var con console.Console
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if tty {
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con = console.Current()
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defer con.Reset()
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if err := con.SetRaw(); err != nil {
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return err
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}
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}
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if err := task.Start(ctx); err != nil {
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return err
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}
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if tty {
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if err := handleConsoleResize(ctx, task, con); err != nil {
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logrus.WithError(err).Error("console resize")
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}
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} else {
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sigc := forwardAllSignals(ctx, task)
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defer stopCatch(sigc)
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}
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status := <-statusC
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if _, err := task.Delete(ctx); err != nil {
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return err
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}
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if status != 0 {
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return cli.NewExitError("", int(status))
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}
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return nil
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},
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}
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