Hello world in a container (Engine)

Hello world in a container

So what’s this Docker thing all about?

Docker allows you to run applications, worlds you create, inside containers. Running an application inside a container takes a single command: docker run.

Note: Depending on your Docker system configuration, you may be required to preface each docker command on this page with sudo. To avoid this behavior, your system administrator can create a Unix group called docker and add users to it.

Run a Hello world

Let’s run a hello world container.

$ docker run ubuntu /bin/echo 'Hello world'
Hello world

You just launched your first container!

In this example:

• docker run runs a container.

• ubuntu is the image you run, for example the Ubuntu operating

  登录查看完整内容