Add optional existing configmap (#305)

Signed-off-by: David Young <davidy@funkypenguin.co.nz>
dniel · Jul 7, 2021 · 0ac0af6 · 0ac0af6
1 parent 91587a4
commit 0ac0af6
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Showing 3 changed files with 11 additions and 1 deletion.
diff --git a/helm/templates/configmap.yaml b/helm/templates/configmap.yaml
@@ -1,3 +1,4 @@
+{{ if not .Values.existingConfigMap }}
 apiVersion: v1
 kind: ConfigMap
 metadata:
@@ -10,3 +11,4 @@ metadata:
 data:
   application.yaml: |
 {{ toYaml .Values.applicationYaml | indent 4 }}
+{{ end }}
diff --git a/helm/templates/deployment.yaml b/helm/templates/deployment.yaml
@@ -114,8 +114,11 @@ spec:
       volumes:
         - name: config-volume
           configMap:
+          {{- if .Values.existingConfigMap }}
+            name: {{ .Values.existingConfigMap }}
+          {{- else }}
             name: {{ template "helm.fullname" . }}-config
-
+          {{- end }}
     {{- with .Values.nodeSelector }}
       nodeSelector:
 {{ toYaml . | indent 8 }}

diff --git a/helm/values.yaml b/helm/values.yaml
@@ -81,6 +81,11 @@ ingress:
   path: /auth
   tls: []
 
+# rather than constructing applicationYaml below, it may be desirable to simply mount
+# an existing configmap into the deployment as application.yaml. Specify the name
+# of this existing configmap below to ignore applicationYaml:
+existingConfigMap: null
+
 ## Uncomment and complete the following section to set the configuration
 # applicationYaml:
 #   domain: https://xxxxx.xx.auth0.com/