diff --git a/incubator/common/Chart.yaml b/incubator/common/Chart.yaml
index 51d294a34e..4710e67706 100755
--- a/incubator/common/Chart.yaml
+++ b/incubator/common/Chart.yaml
@@ -1,8 +1,8 @@
 apiVersion: v1
 description: Common chartbuilding components and helpers
 name: common
-version: 0.0.3
-appVersion: 0.0.3
+version: 0.0.4
+appVersion: 0.0.4
 home: https://helm.sh
 maintainers:
 - name: technosophos
diff --git a/incubator/common/templates/_envvar.tpl b/incubator/common/templates/_envvar.tpl
index 832b60448b..709251f8f3 100644
--- a/incubator/common/templates/_envvar.tpl
+++ b/incubator/common/templates/_envvar.tpl
@@ -6,6 +6,18 @@
   value: {{ default "" $value | quote }}
 {{- end -}}
 
+{{- define "common.envvar.configmap" -}}
+  {{- $name := index . 0 -}}
+  {{- $configMapName := index . 1 -}}
+  {{- $configMapKey := index . 2 -}}
+
+  name: {{ $name }}
+  valueFrom:
+    configMapKeyRef:
+      name: {{ $configMapName }}
+      key: {{ $configMapKey }}
+{{- end -}}
+
 {{- define "common.envvar.secret" -}}
   {{- $name := index . 0 -}}
   {{- $secretName := index . 1 -}}