diff --git a/components/prometheus/prometheus-stack.yaml b/components/prometheus/prometheus-stack.yaml
index 7704d37..bd4fc9a 100644
--- a/components/prometheus/prometheus-stack.yaml
+++ b/components/prometheus/prometheus-stack.yaml
@@ -18,11 +18,11 @@ spec:
         enabled: true
         annotations: 
           kubernetes.io/ingress.class: nginx
-          #kubernetes.io/tls-acme: "true"
+          cert-manager.io/cluster-issuer: labdevops-net-letsencrypt-prod
         hosts:
         - grafana.labdevops.net
-        # tls:
-        # - secretName: grafana-cm-tls
-        #   hosts:
-        #   - grafana.labdevops.net
+          tls:
+          - secretName: grafana-cm-tls
+            hosts:
+            - grafana.labdevops.net
   
diff --git a/tests/cert-manager/test-certificate-labdevops-net.yaml b/tests/cert-manager/test-certificate-labdevops-net.yaml
new file mode 100644
index 0000000..a892555
--- /dev/null
+++ b/tests/cert-manager/test-certificate-labdevops-net.yaml
@@ -0,0 +1,14 @@
+---
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: testcert-labdevops-net
+  namespace: certmanager-system
+spec:
+  dnsNames:
+    - testcert.labdevops.net
+    - blablahtest.labdevops.net
+  secretName: testcert-labdevops-tls
+  issuerRef:
+    name: labdevops-net-letsencrypt-prod
+    kind: ClusterIssuer
\ No newline at end of file
diff --git a/tests/cert-manager/test-resource.yaml b/tests/cert-manager/test-resource.yaml
new file mode 100644
index 0000000..8aa7b07
--- /dev/null
+++ b/tests/cert-manager/test-resource.yaml
@@ -0,0 +1,24 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: cert-manager
+---
+apiVersion: cert-manager.io/v1
+kind: Issuer
+metadata:
+  name: test-selfsigned
+  namespace: cert-manager
+spec:
+  selfSigned: {}
+---
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: selfsigned-cert
+  namespace: cert-manager
+spec:
+  dnsNames:
+    - labdevops.net
+  secretName: selfsigned-cert-tls
+  issuerRef:
+    name: test-selfsigned