====== Docker - Containers - Create a container ======

Create a container by using **docker run** + the image name you would like to run + the command to run within the container.

<code bash>
docker run [image_name] [command to run within the container]
</code>

<WRAP info>
**NOTE:**  If the image doesn't exist on your local machine, Docker will attempt to fetch it from the public image registry.
</WRAP>


For Example:

<code bash>
docker run ubuntu /bin/echo hello world
</code>

<WRAP info>
**NOTE**:  Docker containers stop running as soon as the command they issued is complete, so this example will stop the container when the echo command has displayed "hello world".
</WRAP>


----

===== Run a Container that does not stop automatically =====

An alternative method is:

<code bash>
docker run -ti ubuntu
</code>

<WRAP info>
**NOTE:**  where:

  * **-t**:  Runs a terminal.
  * **-i**:  Allow us to interact with it. 

This allows continuous use of the container until the terminal is exited by running the **exit** command.

When the container is created, it is given its container ID and a randomly-generated name.

The command-line prompt will changes to indicate we're inside the container as the root user, followed by the 12 character container ID.

For example:

<code bash>
root@11cc47339ee1:/#
</code>


</WRAP>