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+.. _docker:
+
+***************************
+Running in Docker Container
+***************************
+
+Docker is an open-source project for deploying applications as standardized
+units called containers. Deploying VyOS in a container provides a simple and
+lightweight mechanism for both testing and packet routing for container
+workloads.
+
+IPv6 Support for docker
+=======================
+
+VyOS requires an IPv6-enabled docker network. Currently linux distributions
+do not enable docker IPv6 support by default. You can enable IPv6 support in
+two ways.
+
+Method 1: Create a docker network with IPv6 support 
+---------------------------------------------------
+
+Here is a example using the macvlan driver.
+
+.. code-block:: none
+
+  docker network create --ipv6 -d macvlan -o parent=eth0 --subnet 2001:db8::/64 --subnet 192.0.2.0/24 mynet
+
+Method 2: Add IPv6 support to the docker daemon 
+-----------------------------------------------
+
+Edit /etc/docker/daemon.json to set the ``ipv6`` key to ``true`` and to specify
+the ``fixed-cidr-v6`` to your desired IPv6 subnet.
+
+.. code-block:: none
+
+  {
+    "ipv6": true,
+    "fixed-cidr-v6": "2001:db8::/64"
+  }
+
+Reload the docker configuration.
+
+.. code-block:: none
+
+  $ sudo systemctl reload docker
+
+
+Deploy container from ISO
+=========================
+
+Download the ISO on which you want to base the container. In this example, 
+the name of the ISO is ``vyos-1.4-rolling-202111281249-amd64.iso``. If you
+created a custom IPv6-enabled network, the ``docker run`` command below
+will require that this network be included as the ``--net`` parameter to
+``docker run``.
+
+.. code-block:: none
+
+  $ mkdir vyos && cd vyos
+  $ cp ~/vyos-1.4-rolling-202111281249-amd64.iso .
+  $ mkdir rootfs
+  $ sudo mount -o loop vyos-1.4-rolling-202111281249-amd64.iso rootfs
+  $ sudo apt-get install -y squashfs-tools
+  $ mkdir unsquashfs
+  $ sudo unsquashfs -f -d unsquashfs/ rootfs/live/filesystem.squashfs
+  $ sudo tar -C unsquashfs -c . | docker import - vyos:1.4-rolling-202111281249
+  $ sudo umount rootfs
+  $ cd ..
+  $ sudo rm -rf vyos
+  $ docker run -d --rm --name vyos --privileged -v /lib/modules:/lib/modules \
+  > vyos:1.4-rolling-202111281249 /sbin/init
+  $ docker exec -ti vyos su - vyos
+
+You can execute ``docker stop vyos`` when you are finished with the container.