Make sure docker pod's container FS layers are persisted on the host.
Previously, we persisted /var/run/docker in $BUILD_HOME/docker/run, but
that directory contains only sockets and similar files internal to the
docker daemon. This patch changes the helm chart to persist
/var/lib/docker in $BUILD_HOME/docker/var ; that directory contains
docker FS layers & docker images generated during the build.
TESTS
================================
* Start stx-tools containers
* Pull an image inside "stx shell"
* Stop stx-tools containers
* Make $BUILD_HOME/docker/var is not empty
* Re-start stx-tools containers & make sure the previously-pulled image
still exists and didn't disappear
Story: 2010055
Task: 47861
Change-Id: Ibbd60f48989ecd9663b98da3167e491a9c2493c7
Signed-off-by: Davlet Panech <davlet.panech@windriver.com>
ae1ba8e3d7