@@ -127,10 +127,11 @@ Check the logs make sure it is working correctly.

     sudo docker attach $CONTAINER_ID

-Attach to the container to see the results in realtime.

+Attach to the container to see the results in real-time.

 - **"docker attach**" This will allow us to attach to a background

   process to see what is going on.

+- **"-sig-proxy=true" Proxify all received signal to the process (even in non-tty mode)

 - **$CONTAINER_ID** The Id of the container we want to attach too.

 Exit from the container attachment by pressing Control-C.

@@ -39,11 +39,12 @@ container. The ``BUILD_JOB`` environment variable will be set with the new conta

 .. code-block:: bash

-    sudo docker attach $BUILD_JOB

+    sudo docker attach -sig-proxy=false $BUILD_JOB

     [...]

 While this container is running, we can attach to the new container to

-see what is going on. You can use Ctrl-C to disconnect.

+see what is going on. The flag ``-sig-proxy`` set as ``false`` allows you to connect and

+disconnect (Ctrl-C) to it without stopping the container.

 .. code-block:: bash

@@ -21,7 +21,8 @@ smooth, but gives you a good idea.

    daemon is unprotected and available via a TCP port. When you run

    through the same steps in a newer version of Docker, you will

    need to add ``sudo`` in front of each ``docker`` command in order

-   to reach the daemon over its protected Unix socket.

+   to reach the daemon over its protected Unix socket or you can add

+   your user to docker's group: ``sudo usermod -a -G docker <user>``.

 .. raw:: html

@@ -54,6 +54,13 @@ the daemon starts. The ``docker`` daemon must always run as root, but

 if you run the ``docker`` client as a user in the *docker* group then

 you don't need to add ``sudo`` to all the client commands.

+Alternative to ``sudo``?

+-------------

+

+You can add your current ``<username>`` to docker's group and get rid of

+``sudo`` before each ``docker`` command. You just need to type:

+``$ sudo usermod -a -G docker <username>``

+

 .. code-block:: bash

   # Add the docker group