200-stdin-stdout

In this example, we start the tr '[:lower:] [:upper:]' process in a container and we set its STDIN to a strings.Reader and set its STDOUT to os.Stdout.

The tr invocation will convert passed stream to uppercase.

To run this example:

$ docker pull busybox
$ go run main.go
HELLO WORLD
FROM
CONTAINER

Migration from os/exec

> 	cl, _ := docker.NewClientFromEnv()
> 	d := dexec.Docker{cl}
> 
> 	m, _ := dexec.ByCreatingContainer(docker.CreateContainerOptions{
> 		Config: &docker.Config{Image: "busybox"}})
> 
< 	cmd := exec.Command("tr", "[:lower:]", "[:upper:]")
> 	cmd := d.Command(m, "tr", "[:lower:]", "[:upper:]")