diff --git a/charts/data-api/Chart.yaml b/charts/data-api/Chart.yaml
index 6328d70..0919bd3 100644
--- a/charts/data-api/Chart.yaml
+++ b/charts/data-api/Chart.yaml
@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.9.0
+version: 1.0.0
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
diff --git a/charts/data-api/templates/configmap.yml b/charts/data-api/templates/configmap.yml
index 89bd6a5..cc925e3 100644
--- a/charts/data-api/templates/configmap.yml
+++ b/charts/data-api/templates/configmap.yml
@@ -1,3 +1,4 @@
+{{- if .Values.configmap.enabled -}}
 apiVersion: v1
 kind: ConfigMap
 metadata:
@@ -7,4 +8,5 @@ metadata:
 data:
   {{- range $key, $val := .Values.configmap.data }}
   {{$key}}: {{ $val | quote }}
-  {{- end }}
\ No newline at end of file
+  {{- end }}
+{{- end }}
\ No newline at end of file
diff --git a/charts/data-api/templates/deployment.yml b/charts/data-api/templates/deployment.yml
index fc15e42..cfc24d3 100644
--- a/charts/data-api/templates/deployment.yml
+++ b/charts/data-api/templates/deployment.yml
@@ -15,7 +15,7 @@ spec:
     type: RollingUpdate
     rollingUpdate:
       maxSurge: 1
-      maxUnavailable: 0
+      maxUnavailable: 1
   template:
     metadata:
     {{- with .Values.podAnnotations }}
@@ -41,17 +41,15 @@ spec:
             - name: http
               containerPort: 5000
               protocol: TCP
-          # livenessProbe:
-          #   httpGet:
-          #     path: /
-          #     port: http
-          # readinessProbe:
-          #   httpGet:
-          #     path: /
-          #     port: http
           envFrom:
+            {{- if .Values.configmap.enabled }}
             - configMapRef:
                 name: {{ .Release.Name }}-config
+            {{- end }}
+            {{- if .Values.existingSecret }}
+            - secretRef:
+                name: {{ .Values.existingSecret }}
+            {{- end }}
           resources:
             {{- toYaml .Values.resources | nindent 12 }}
       {{- with .Values.nodeSelector }}
diff --git a/charts/data-api/values.yaml b/charts/data-api/values.yaml
index f38c295..c6489f1 100644
--- a/charts/data-api/values.yaml
+++ b/charts/data-api/values.yaml
@@ -69,4 +69,7 @@ tolerations: []
 affinity: {}
 
 configmap:
+  enabled: false
   data: []
+
+existingSecret:
\ No newline at end of file