package main import ( "encoding/json" "fmt" "os" "github.com/containers/libpod/cmd/podman/libpodruntime" "github.com/containers/libpod/libpod" cc "github.com/containers/libpod/pkg/spec" "github.com/pkg/errors" "github.com/sirupsen/logrus" "github.com/urfave/cli" ) var ( startFlags = []cli.Flag{ cli.BoolFlag{ Name: "attach, a", Usage: "Attach container's STDOUT and STDERR", }, cli.StringFlag{ Name: "detach-keys", Usage: "Override the key sequence for detaching a container. Format is a single character [a-Z] or ctrl- where is one of: a-z, @, ^, [, , or _.", }, cli.BoolFlag{ Name: "interactive, i", Usage: "Keep STDIN open even if not attached", }, cli.BoolTFlag{ Name: "sig-proxy", Usage: "Proxy received signals to the process (default true if attaching, false otherwise)", }, LatestFlag, } startDescription = ` podman start Starts one or more containers. The container name or ID can be used. ` startCommand = cli.Command{ Name: "start", Usage: "Start one or more containers", Description: startDescription, Flags: sortFlags(startFlags), Action: startCmd, ArgsUsage: "CONTAINER-NAME [CONTAINER-NAME ...]", UseShortOptionHandling: true, OnUsageError: usageErrorHandler, } ) func startCmd(c *cli.Context) error { args := c.Args() if len(args) < 1 && !c.Bool("latest") { return errors.Errorf("you must provide at least one container name or id") } attach := c.Bool("attach") if len(args) > 1 && attach { return errors.Errorf("you cannot start and attach multiple containers at once") } if err := validateFlags(c, startFlags); err != nil { return err } sigProxy := c.BoolT("sig-proxy") if sigProxy && !attach { if c.IsSet("sig-proxy") { return errors.Wrapf(libpod.ErrInvalidArg, "you cannot use sig-proxy without --attach") } else { sigProxy = false } } runtime, err := libpodruntime.GetRuntime(c) if err != nil { return errors.Wrapf(err, "error creating libpod runtime") } defer runtime.Shutdown(false) if c.Bool("latest") { lastCtr, err := runtime.GetLatestContainer() if err != nil { return errors.Wrapf(err, "unable to get latest container") } args = append(args, lastCtr.ID()) } ctx := getContext() var lastError error for _, container := range args { ctr, err := runtime.LookupContainer(container) if err != nil { if lastError != nil { fmt.Fprintln(os.Stderr, lastError) } lastError = errors.Wrapf(err, "unable to find container %s", container) continue } ctrState, err := ctr.State() if err != nil { return errors.Wrapf(err, "unable to get container state") } ctrRunning := ctrState == libpod.ContainerStateRunning if attach { inputStream := os.Stdin if !c.Bool("interactive") { inputStream = nil } // attach to the container and also start it not already running err = startAttachCtr(ctr, os.Stdout, os.Stderr, inputStream, c.String("detach-keys"), sigProxy, !ctrRunning) if ctrRunning { return err } if err != nil { return errors.Wrapf(err, "unable to start container %s", ctr.ID()) } if ecode, err := ctr.Wait(); err != nil { logrus.Errorf("unable to get exit code of container %s: %q", ctr.ID(), err) } else { exitCode = int(ecode) } return ctr.Cleanup(ctx) } if ctrRunning { fmt.Println(ctr.ID()) continue } // Handle non-attach start if err := ctr.Start(ctx); err != nil { var createArtifact cc.CreateConfig artifact, artifactErr := ctr.GetArtifact("create-config") if artifactErr == nil { if jsonErr := json.Unmarshal(artifact, &createArtifact); jsonErr != nil { logrus.Errorf("unable to detect if container %s should be deleted", ctr.ID()) } if createArtifact.Rm { if rmErr := runtime.RemoveContainer(ctx, ctr, true); rmErr != nil { logrus.Errorf("unable to remove container %s after it failed to start", ctr.ID()) } } } if lastError != nil { fmt.Fprintln(os.Stderr, lastError) } lastError = errors.Wrapf(err, "unable to start container %q", container) continue } fmt.Println(container) } return lastError }