exclude openshift namespaces via regex

Signed-off-by: Zahar Pecherichny <[email protected]>

charts/hnc/values.yaml

@@ -2,6 +2,10 @@ image:
   repository: gcr.io/k8s-staging-multitenancy/hnc-manager
   tag: v1.1.0
   imagePullPolicy: {}
+# Regex of namespaces for HNC to manage
+# example include everything except openshift.*
+#hncIncludeNamespacesRegex: ([^o].*|o([^p].*)|op([^e].*)|ope([^n].*)|open([^s].*)|opens([^h].*)|opensh([^i].*)|openshi([^f].*)|openshif([^t].*))
+hncIncludeNamespacesRegex: ""
 # A list of namespaces to add the HNC exclude label to
 hncExcludeNamespaces:
   - hnc-system

hack/helm_patches/update-helm.sh

@@ -176,6 +176,9 @@ for output_file in ${TEMPLATESDIR}/*.yaml; do
     # Add placeholder for --excluded-namespace arg
     sed -i -e '/args:/a \            {{- range $hncExcludeNamespace := .Values.hncExcludeNamespaces}}\n \           - --excluded-namespace={{ $hncExcludeNamespace }}\n \           {{- end }}' $output_file
 
+    # Add placeholder for --included-namespace-regex arg
+    sed -i -e '/args:/a \            {{- if $hncIncludeNamespacesRegex}}\n \           - --included-namespace-regex={{ $hncIncludeNamespacesRegex }}\n \           {{- end }}' $output_file
+
     # [HRQ] Add conditional blocks for --enable-hrq arg
     sed -i -e '/args:/a \            {{- if .Values.hrq.enabled }}\n \           - --enable-hrq\n \           {{- end }}' $output_file