New helm chart created for nova-api-proxy
New module added to helm overrides to configure nova-api-proxy.conf
Turned of yamllint for helm charts, openstack helm charts are yaml
files but not proper yaml syntax
Story: 2004007
Task: 26953
Change-Id: Ic45d6cb801e142ddd7fc7da1638ba0e65cbacc22
Signed-off-by: Lachlan Plant <lachlan.plant@windriver.com>