Add support for Helm v3

This adds support for Helm v3.
- 'helm init' and initialization is no longer required
- 'chartmuseum' is used as a drop-in replacement for 'helm serv'
- all Charts require the tag: apiVersion: v1 (or v2)

This updates ingress chart to specify apiVersion.

Change-Id: Ie41cde4ad450b63a78a0a677995e9c28eefd9798
Story: 2007000
Task: 39327
Depends-On: https://review.opendev.org/719962
Signed-off-by: Jim Gauld <james.gauld@windriver.com>

stx-openstack-helm/centos/stx-openstack-helm.spec

@@ -19,6 +19,7 @@ BuildArch: noarch
 
 BuildRequires: helm
 BuildRequires: openstack-helm-infra
+BuildRequires: chartmuseum
 Requires: openstack-helm-infra
 Requires: openstack-helm
 Requires: python-k8sapp-openstack-wheels
@@ -30,31 +31,12 @@ StarlingX Openstack Application Helm charts
 %setup
 
 %build
-# initialize helm and build the toolkit
-# helm init --client-only does not work if there is no networking
-# The following commands do essentially the same as: helm init
-%define helm_home  %{getenv:HOME}/.helm
-mkdir  %{helm_home}
-mkdir  %{helm_home}/repository
-mkdir  %{helm_home}/repository/cache
-mkdir  %{helm_home}/repository/local
-mkdir  %{helm_home}/plugins
-mkdir  %{helm_home}/starters
-mkdir  %{helm_home}/cache
-mkdir  %{helm_home}/cache/archive
-
-# Stage a repository file that only has a local repo
-cp files/repositories.yaml %{helm_home}/repository/repositories.yaml
-
-# Stage a local repo index that can be updated by the build
-cp files/index.yaml %{helm_home}/repository/local/index.yaml
-
 # Stage helm-toolkit in the local repo
-cp  %{helm_folder}/helm-toolkit-%{toolkit_version}.tgz .
+cp %{helm_folder}/helm-toolkit-%{toolkit_version}.tgz helm-charts/
 
 # Host a server for the charts
-helm serve --repo-path . &
-helm repo rm local
+chartmuseum --debug --port=8879 --context-path='/charts' --storage="local" --storage-local-rootdir="./helm-charts" &
+sleep 2
 helm repo add local http://localhost:8879/charts
 
 # Make the charts. These produce a tgz file
@@ -71,7 +53,7 @@ cd -
 kill %1
 
 # remove helm-toolkit. This will be packaged with openstack-helm-infra
-rm  ./helm-toolkit-%{toolkit_version}.tgz
+rm  ./helm-charts/helm-toolkit-%{toolkit_version}.tgz
 
 %install
 # helm_folder is created by openstack-helm-infra