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 nginx-ingress chart to specify apiVersion.

Change-Id: I6d084dafccbbc192ba5e1f5a998540e2728c9e22
Story: 2007000
Task: 39328
Depends-On: https://review.opendev.org/719962
Signed-off-by: Jim Gauld <james.gauld@windriver.com>

monitor-helm-elastic/centos/monitor-helm-elastic.spec

@@ -31,6 +31,7 @@ Patch11: 0011-Fix-Elasticsearch-readiness-probe-http-endpoint.patch
 Patch12: 0012-Add-logstash-ingress.patch
 
 BuildRequires: helm
+BuildRequires: chartmuseum
 
 %description
 Monitor Helm elasticsearch charts
@@ -50,28 +51,9 @@ Monitor Helm elasticsearch charts
 %patch12 -p1
 
 %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 %{SOURCE1} %{helm_home}/repository/repositories.yaml
-
-# Stage a local repo index that can be updated by the build
-cp %{SOURCE2} %{helm_home}/repository/local/index.yaml
-
 # 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="." &
+sleep 2
 helm repo add local http://localhost:8879/charts
 
 # Create the tgz files

monitor-helm/centos/monitor-helm.spec

@@ -35,8 +35,10 @@ Patch14: 0014-Add-rbac-replicasets-to-apps-apigroup-commit-1717e2d.patch
 Patch15: 0015-script-flexibility.patch
 Patch16: 0016-use-main-container-image-for-initcontainer.patch
 Patch17: 0017-stable-nginx-ingress-allow-nodePort-for-tcp-udp-serv.patch
+Patch18: 0018-Update-nginx-ingress-chart-for-Helm-v3.patch
 
 BuildRequires: helm
+BuildRequires: chartmuseum
 
 %description
 Monitor Helm charts
@@ -60,30 +62,12 @@ Monitor Helm charts
 %patch15 -p1
 %patch16 -p1
 %patch17 -p1
+%patch18 -p1
 
 %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 %{SOURCE1} %{helm_home}/repository/repositories.yaml
-
-# Stage a local repo index that can be updated by the build
-cp %{SOURCE2} %{helm_home}/repository/local/index.yaml
-
 # 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="." &
+sleep 2
 helm repo add local http://localhost:8879/charts
 
 # Create the tgz files

monitor-helm/files/0018-Update-nginx-ingress-chart-for-Helm-v3.patch

@@ -0,0 +1,22 @@
+From 8f31965ee80e72ef57b50481c2eec6ba30d89d13 Mon Sep 17 00:00:00 2001
+From: Jim Gauld <james.gauld@windriver.com>
+Date: Thu, 9 Apr 2020 10:50:50 -0400
+Subject: [PATCH] Update nginx-ingress chart for Helm v3
+
+Signed-off-by: Jim Gauld <james.gauld@windriver.com>
+---
+ stable/nginx-ingress/Chart.yaml | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/stable/nginx-ingress/Chart.yaml b/stable/nginx-ingress/Chart.yaml
+index a9d64ed..6574c3f 100644
+--- a/stable/nginx-ingress/Chart.yaml
++++ b/stable/nginx-ingress/Chart.yaml
+@@ -1,3 +1,4 @@
++apiVersion: v1
+ name: nginx-ingress
+ version: 1.4.0
+ appVersion: 0.23.0
+-- 
+1.8.3.1
+