diff --git a/infrastructure/longhorn/kustomization.yaml b/infrastructure/longhorn/kustomization.yaml
index 533357391c2ffd3054881faf134631e41efe22f6..de19fb8c5b971e0af5d99829f8595873a914e0da 100644
--- a/infrastructure/longhorn/kustomization.yaml
+++ b/infrastructure/longhorn/kustomization.yaml
@@ -11,6 +11,7 @@ resources:
   - https://git.shivering-isles.com/github-mirror/longhorn/longhorn/-/raw/v1.2.3/examples/network-policy/backing-image-manager-network-policy.yaml
   - https://git.shivering-isles.com/github-mirror/longhorn/longhorn/-/raw/v1.2.3/examples/network-policy/backing-image-data-source-network-policy.yaml
   - ../../shared/networkpolicies/allow-from-ingress.yaml
+  - ../../shared/networkpolicies/allow-from-monitoring.yaml
 patchesStrategicMerge:
   - networkpolicy.yaml
 
diff --git a/infrastructure/longhorn/networkpolicy.yaml b/infrastructure/longhorn/networkpolicy.yaml
index 027c4072d10a13b5882a51c9da34652e7a8aecbc..58efb3faddb545bb3316bc0a44d74bfcf351d0c4 100644
--- a/infrastructure/longhorn/networkpolicy.yaml
+++ b/infrastructure/longhorn/networkpolicy.yaml
@@ -1,3 +1,4 @@
+---
 apiVersion: networking.k8s.io/v1
 kind: NetworkPolicy
 metadata:
@@ -6,3 +7,12 @@ spec:
   podSelector:
     matchLabels:
       app: longhorn-ui
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: allow-from-monitoring
+spec:
+  podSelector:
+    matchLabels:
+      app: longhorn-manager
diff --git a/infrastructure/longhorn/servicemonitor.yaml b/infrastructure/longhorn/servicemonitor.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..88cb3b69647760ececf71f12e58b841515155a27
--- /dev/null
+++ b/infrastructure/longhorn/servicemonitor.yaml
@@ -0,0 +1,16 @@
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: longhorn-prometheus-servicemonitor
+  namespace: longhorn-system
+  labels:
+    name: longhorn-prometheus-servicemonitor
+spec:
+  selector:
+    matchLabels:
+      app: longhorn-manager
+  namespaceSelector:
+    matchNames:
+    - longhorn-system
+  endpoints:
+  - port: manager