diff --git a/apps/external-ns.yaml b/apps/external-ns.yaml
new file mode 100644
index 0000000..b98dec3
--- /dev/null
+++ b/apps/external-ns.yaml
@@ -0,0 +1,18 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: external-nightscout
+  namespace: argocd
+spec:
+  project: default
+  source:
+    repoURL: https://gitea.zb-kw.duckdns.org/willemjan/cluster.git
+    targetRevision: main
+    path: services/external-nightscout
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: external
+  syncPolicy:
+    automated: {prune: true, selfHeal: true}
+    syncOptions:
+      - CreateNamespace=true
diff --git a/services/external-ns/cert.yaml b/services/external-ns/cert.yaml
new file mode 100644
index 0000000..904f9f0
--- /dev/null
+++ b/services/external-ns/cert.yaml
@@ -0,0 +1,14 @@
+# Certificaat voor ns.labzand.com via Cloudflare DNS-01.
+# Vereist: ClusterIssuer 'cloudflare-dns' (infrastructure/cert-manager/cloudflare-issuer.yaml)
+# en een secret 'cloudflare-api-token' in namespace cert-manager.
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: ns-labzand
+  namespace: external
+spec:
+  secretName: ns-labzand-tls
+  dnsNames: ["ns.labzand.com"]
+  issuerRef:
+    name: cloudflare-dns
+    kind: ClusterIssuer
diff --git a/services/external-ns/ingress.yaml b/services/external-ns/ingress.yaml
new file mode 100644
index 0000000..95eb0f5
--- /dev/null
+++ b/services/external-ns/ingress.yaml
@@ -0,0 +1,25 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: ns
+  namespace: external
+  annotations:
+    traefik.ingress.kubernetes.io/router.entrypoints: websecure
+    traefik.ingress.kubernetes.io/router.tls: "true"
+spec:
+  ingressClassName: traefik
+  rules:
+  - host: ns.labzand.com
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: ns-external
+            port:
+              number: 1337
+  tls:
+  - hosts:
+    - ns.labzand.com
+    secretName: ns-labzand-tls
diff --git a/services/external-ns/namespace.yaml b/services/external-ns/namespace.yaml
new file mode 100644
index 0000000..45c1c03
--- /dev/null
+++ b/services/external-ns/namespace.yaml
@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: external
+  labels:
+    name: external
diff --git a/services/external-ns/service.yaml b/services/external-ns/service.yaml
new file mode 100644
index 0000000..63e2f23
--- /dev/null
+++ b/services/external-ns/service.yaml
@@ -0,0 +1,27 @@
+# Service zonder selector: Kubernetes maakt zelf geen Endpoints aan.
+# Het Endpoints-object hieronder levert het externe adres (buiten het cluster).
+apiVersion: v1
+kind: Service
+metadata:
+  name: ns-external
+  namespace: external
+spec:
+  type: ClusterIP
+  ports:
+    - name: http
+      port: 1337
+      targetPort: 1337
+      protocol: TCP
+---
+apiVersion: v1
+kind: Endpoints
+metadata:
+  name: ns-external
+  namespace: external
+subsets:
+  - addresses:
+      - ip: 192.168.2.12
+    ports:
+      - name: http
+        port: 1337
+        protocol: TCP