This PS updates the values file layout for images to allow simple
parsing of the images in use by charts, allowing them to be queried
and modified much more simply. By moving the image tags to a 'tags'
key, we can extend the options used simply to accomodate extra
options simply (eg prefixing the tag for use with an internal
registry) or pre-pulling the images to reduce chart deploy failure.
Change-Id: I9ec1dbb00d997ab6cb021bf0b698f7aae740e95d
Implemented Kubernetes jobs to drop a database for an OpenStack service
on deletion of Helm chart. This job is configurable to be enabled or
disabled in the values.yaml file for each chart.
Change-Id: Ia1a0834cb43c7e883aaf507a7c7683fa1cf4e838
