=== Container Environment Variables

ifdef::topdoc[:imagesdir: {topdoc}../../test/case/containers/environment]

==== Description

Verify that environment variables can be set in container configuration
and are available inside the running container.  Also verify that
changing an environment variable triggers a container restart.

1  Set up a container config with multiple environment variables
2. Serve variables back to host using a CGI script in container
3. Verify served content against environment variables
4. Change an environment variable and verify the container restarts

==== Topology

image::topology.svg[Container Environment Variables topology, align=center, scaledwidth=75%]

==== Sequence

. Set up topology and attach to target DUT
. Configure data interface with static IPv4
. Set up container with environment variables
. Verify container has started
. Verify basic connectivity to data interface
. Verify environment variables in CGI response
. Change environment variable and verify container restarts
. Verify container has restarted with updated env