Upon successful deployment of Casablanca with all components present except PNDA, the VVP component shows frequent pod restarts on the Imagescanner pod.  Example VVP component pod status after a few days of Casablanca uptime (see highlighted red font):

onap onap-vvp-vvp-647df775c-kwgzp 1/1 Running 0 2d
onap onap-vvp-vvp-ci-uwsgi-869547b95d-8lfl5 1/1 Running 0 2d
onap onap-vvp-vvp-cms-uwsgi-67875bc58d-c2p6v 1/1 Running 0 2d
onap onap-vvp-vvp-em-uwsgi-cb5946fcd-75gbt 1/1 Running 1 2d
onap onap-vvp-vvp-ext-haproxy-78cfc9686-vlmhr 1/1 Running 0 2d
onap onap-vvp-vvp-gitlab-d854f8b88-dp9cd 1/1 Running 0 2d
onap onap-vvp-vvp-imagescanner-67ddfd664d-25dm5 3/3 Running 156 2d
onap onap-vvp-vvp-int-haproxy-6c77648b48-mgm9n 1/1 Running 0 2d
onap onap-vvp-vvp-jenkins-6c8b6fff88-fqtb9 1/1 Running 0 2d
onap onap-vvp-vvp-postgres-559b9fc8b5-mblhg 1/1 Running 0 2d
onap onap-vvp-vvp-redis-5d566fdf44-mznns 1/1 Running 0 2d

Log output from the pod shows respectively:

 # kubectl -n onap logs onap-vvp-vvp-imagescanner-67ddfd664d-25dm5 -c imagescanner-worker

<...snip...>

[2019-01-03 15:26:50,223: ERROR/MainProcess] consumer: Cannot connect to redis://redis:6379//: Error -2 connecting to redis:6379. Name does not resolve..
Trying again in 2.00 seconds...

 # kubectl -n onap logs onap-vvp-vvp-imagescanner-67ddfd664d-25dm5 -c notification-worker

<...snip...>

[2019-01-03 15:32:37,527: ERROR/MainProcess] consumer: Cannot connect to redis://redis:6379//: Error -2 connecting to redis:6379. Name does not resolve..
Trying again in 32.00 seconds...

Also, there is a (perhaps unrelated) warning at the top of each of these logs which may need attention:

/usr/lib/python3.6/site-packages/celery/platforms.py:796: RuntimeWarning: You're running the worker with superuser privileges: this is
absolutely not recommended!

Please specify a different user using the --uid option.

User information: uid=0 euid=0 gid=0 egid=0

uid=uid, euid=euid, gid=gid, egid=egid,

The related JIRA issue noted (VVP-117) appears to have the same vvp-imagescanner pod restarts shown in that ticket's description text.