Helm: RBAC generation fixes (operator-framework#1461)

* internal/pkg/scaffold/helm/role.go: return on role generation error

* internal/pkg/scaffold/helm/role.go: handle OCP k8s versions

* hack/tests/e2e-helm.sh: fail on failed RBAC generation

* CHANGELOG.md: added lines for fixes from operator-framework#1456 and operator-framework#1461

CHANGELOG.md

@@ -10,6 +10,9 @@
 
 ### Bug Fixes
 
+- Fixes a regression that causes Helm RBAC generation to contain an empty custom ruleset when the chart's default manifest contains only namespaced resources. ([#1456](https://github.com/operator-framework/operator-sdk/pull/1456))
+- Fixes an issue that causes Helm RBAC generation to fail when creating new operators with a Kubernetes context configured to connect to an OpenShift cluster. ([#1461](https://github.com/operator-framework/operator-sdk/pull/1461))
+
 ## v0.8.0
 
 ### Added

hack/tests/e2e-helm.sh

@@ -94,7 +94,12 @@ fi
 
 # create and build the operator
 pushd "$GOTMP"
-operator-sdk new nginx-operator --api-version=helm.example.com/v1alpha1 --kind=Nginx --type=helm
+log=$(operator-sdk new nginx-operator --api-version=helm.example.com/v1alpha1 --kind=Nginx --type=helm 2>&1)
+echo $log
+if echo $log | grep -q "failed to generate RBAC rules"; then
+    echo FAIL expected successful generation of RBAC rules
+    exit 1
+fi
 
 pushd nginx-operator
 sed -i 's|\(FROM quay.io/operator-framework/helm-operator\)\(:.*\)\?|\1:dev|g' build/Dockerfile

internal/pkg/scaffold/helm/role.go

@@ -70,6 +70,7 @@ func CreateRoleScaffold(cfg *rest.Config, chart *chart.Chart) (*scaffold.Role, e
 	if err != nil {
 		log.Warnf("Using default RBAC rules: failed to generate RBAC rules: %s", err)
 		roleScaffold.SkipDefaultRules = false
+		return roleScaffold, nil
 	}
 
 	// Use a ClusterRole if cluster scoped resources are listed in the chart
@@ -183,12 +184,13 @@ func getServerVersionAndResources(cfg *rest.Config) (*version.Info, []*metav1.AP
 }
 
 func getDefaultManifests(c *chart.Chart, kubeVersion *version.Info) ([]tiller.Manifest, error) {
+	v := strings.TrimSuffix(fmt.Sprintf("%s.%s", kubeVersion.Major, kubeVersion.Minor), "+")
 	renderOpts := renderutil.Options{
 		ReleaseOptions: chartutil.ReleaseOptions{
 			IsInstall: true,
 			IsUpgrade: false,
 		},
-		KubeVersion: fmt.Sprintf("%s.%s", kubeVersion.Major, kubeVersion.Minor),
+		KubeVersion: v,
 	}
 
 	renderedTemplates, err := renderutil.Render(c, &chart.Config{}, renderOpts)