diff --git a/scripts/test.sh b/scripts/test.sh
new file mode 100755
index 0000000..f1ec04a
--- /dev/null
+++ b/scripts/test.sh
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+set -o errexit
+set -o pipefail
+set -o errtrace
+
+HELM="${HELM:-helm}"
+
+cd "tests/values"
+
+for file in *yaml; do
+	echo "helm $file"
+	${HELM} template ../../ -f "${file}" --include-crds --namespace test-namespace > "../outputs/${file}"
+done
diff --git a/templates/deployment.yaml b/templates/deployment.yaml
index bf44fd4..da32ca2 100644
--- a/templates/deployment.yaml
+++ b/templates/deployment.yaml
@@ -24,6 +24,8 @@ spec:
         {{ .Values.vxlanController.metadataKey }}: "true"
         {{- end }}
       annotations:
+        checksum/config: {{ include (print .Template.BasePath "/sftp-config.yaml") . | sha256sum }}
+        checksum/keys: {{ include (print .Template.BasePath "/authorized-keys-config.yaml") . | sha256sum }}
         {{- if .Values.vxlanController.enabled }}
         {{ .Values.vxlanController.annotationKey }}: | 
           {{ .Values.vxlanController.network }}
diff --git a/tests/outputs/empty.yaml b/tests/outputs/empty.yaml
new file mode 100644
index 0000000..7fe3cfc
--- /dev/null
+++ b/tests/outputs/empty.yaml
@@ -0,0 +1,107 @@
+---
+# Source: sftp-server/templates/sftp-config.yaml
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: release-name-sftp-server-users
+data:
+  users.conf: |
+      sftp:::
+---
+# Source: sftp-server/templates/data-pvc.yaml
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: release-name-sftp-server-data
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: "20Gi"
+---
+# Source: sftp-server/templates/service.yaml
+apiVersion: v1
+kind: Service
+metadata:
+  name: release-name-sftp-server
+  labels:
+    app.kubernetes.io/name: sftp-server
+    helm.sh/chart: sftp-server-0.3.2
+    app.kubernetes.io/instance: release-name
+    app.kubernetes.io/managed-by: Helm
+spec:
+  type: ClusterIP
+  ports:
+    - port: 22
+      targetPort: ssh
+      protocol: TCP
+      name: ssh
+  selector:
+    app.kubernetes.io/name: sftp-server
+    app.kubernetes.io/instance: release-name
+---
+# Source: sftp-server/templates/deployment.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: release-name-sftp-server
+  labels:
+    app.kubernetes.io/name: sftp-server
+    helm.sh/chart: sftp-server-0.3.2
+    app.kubernetes.io/instance: release-name
+    app.kubernetes.io/managed-by: Helm
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: sftp-server
+      app.kubernetes.io/instance: release-name
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: sftp-server
+        app.kubernetes.io/instance: release-name
+      annotations:
+        checksum/config: c59a65a89dc772d7099b3ba9ce2e7c06f991b0dcaa13288c1c85ed81a9c62ddc
+        checksum/keys: 01ba4719c80b6fe911b091a7c05124b64eeece964e09c058ef8f9805daca546b
+    spec:
+      initContainers:
+      containers:
+        - name: sftp-server
+          image: "quay.io/openvnf/sftp:alpine-3.7"
+          imagePullPolicy: IfNotPresent
+          securityContext:
+            capabilities:
+              add: ["NET_ADMIN"]
+          ports:
+            - name: ssh
+              containerPort: 22
+              protocol: TCP
+          volumeMounts:
+            - name: sftp-config
+              mountPath: /etc/sftp/
+            - name: data
+              mountPath: /home/sftp/
+          livenessProbe:
+            tcpSocket:
+              port: 22
+          readinessProbe:
+            tcpSocket:
+              port: 22
+          resources:
+            limits:
+              cpu: 100m
+              memory: 128Mi
+            requests:
+              cpu: 100m
+              memory: 128Mi
+      volumes:
+      - name: sftp-config
+        configMap:
+          name: release-name-sftp-server-users
+      - name: data
+        persistentVolumeClaim:
+          claimName: release-name-sftp-server-data
diff --git a/tests/values/empty.yaml b/tests/values/empty.yaml
new file mode 100644
index 0000000..ed97d53
--- /dev/null
+++ b/tests/values/empty.yaml
@@ -0,0 +1 @@
+---