github.com/buildpack/pack@v0.5.0/internal/container/run.go (about) 1 package container 2 3 import ( 4 "context" 5 "fmt" 6 "io" 7 8 "github.com/docker/docker/api/types" 9 dcontainer "github.com/docker/docker/api/types/container" 10 "github.com/docker/docker/client" 11 "github.com/docker/docker/pkg/stdcopy" 12 "github.com/pkg/errors" 13 ) 14 15 func Run(ctx context.Context, docker *client.Client, ctrID string, out, errOut io.Writer) error { 16 bodyChan, errChan := docker.ContainerWait(ctx, ctrID, dcontainer.WaitConditionNextExit) 17 18 if err := docker.ContainerStart(ctx, ctrID, types.ContainerStartOptions{}); err != nil { 19 return errors.Wrap(err, "container start") 20 } 21 logs, err := docker.ContainerLogs(ctx, ctrID, types.ContainerLogsOptions{ 22 ShowStdout: true, 23 ShowStderr: true, 24 Follow: true, 25 }) 26 if err != nil { 27 return errors.Wrap(err, "container logs stdout") 28 } 29 30 copyErr := make(chan error) 31 go func() { 32 _, err := stdcopy.StdCopy(out, errOut, logs) 33 copyErr <- err 34 }() 35 36 select { 37 case body := <-bodyChan: 38 if body.StatusCode != 0 { 39 return fmt.Errorf("failed with status code: %d", body.StatusCode) 40 } 41 case err := <-errChan: 42 return err 43 } 44 return <-copyErr 45 }