add ovs remote vlan markdown example

Signed-off-by: Periyasamy Palanisamy <periyasamy.palanisamy@est.tech>

examples/ovsremotevlan/device-selector.yaml

@@ -0,0 +1,8 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: device-selector
+  namespace: nsm-system
+data:
+  selector: "---\nbridges:\n  - name: br-snic0\n    matches:\n      - labelSelector:\n          - via: gw0\n    \n"

examples/ovsremotevlan/forwarder-ovs.yaml

@@ -0,0 +1,24 @@
+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: forwarder-ovs
+spec:
+  template:
+    spec:
+      containers:
+        - name: forwarder-ovs
+          env:
+            - name: NSM_L2_RESOURCE_SELECTOR_FILE
+              value: /var/lib/networkservicemesh/device-selector.yaml
+          volumeMounts:
+            - name: devsel-vol
+              mountPath: /var/lib/networkservicemesh/device-selector.yaml
+              subPath: device-selector.yaml
+      volumes:
+      - name: devsel-vol
+        configMap:
+          name: device-selector
+          items:
+          - key: selector
+            path: device-selector.yaml

examples/ovsremotevlan/kustomization.yaml

@@ -0,0 +1,15 @@
+---
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+namespace: nsm-system
+
+bases:
+  - ../../apps/nsmgr
+  - ../../apps/registry-k8s
+  - ../../apps/forwarder-host-ovs
+  - ./device-selector.yaml
+  - ../../apps/nse-remote-vlan-vpp
+
+patchesStrategicMerge:
+  - forwarder-ovs.yaml

examples/use-cases/SmartVF2RVlan/README.md

@@ -0,0 +1,98 @@
+# Test Smart VF connections with VLAN Breakout
+
+This example shows that NSCs are connected over single broadcasting domain with VLAN physical network,
+The VLAN selection is done by a network service on which NS client connect to.
+
+## Requires
+
+Make sure that you have completed steps from [ovs remote vlan](../../ovsremotevlan) setup.
+
+## Run
+
+Create test namespace:
+```bash
+NAMESPACE=($(kubectl create -f https://raw.githubusercontent.com/networkservicemesh/deployments-k8s/a852347fbfd1c3c6b845580c16933872350a8530/examples/use-cases/namespace.yaml)[0])
+NAMESPACE=${NAMESPACE:10}
+```
+
+Create customization file:
+```bash
+cat > kustomization.yaml <<EOF
+---
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+namespace: ${NAMESPACE}
+
+bases:
+- ../../../apps/nsc-kernel
+
+
+patchesStrategicMerge:
+- patch-nsc.yaml
+EOF
+```
+
+Create NSC patch:
+```bash
+cat > patch-nsc.yaml <<EOF
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nsc-kernel
+spec:
+  replicas: 3
+  template:
+    spec:
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - weight: 100
+            podAffinityTerm:
+              labelSelector:
+                matchExpressions:
+                - key: app
+                  operator: In
+                  values:
+                  - nsc-kernel
+              topologyKey: kubernetes.io/hostname
+      containers:
+        - name: nsc
+          env:
+            - name: NSM_NETWORK_SERVICES
+              value: kernel://finance-bridge/nsm-1?sriovToken=worker.domain/100G
+          resources:
+            limits:
+              worker.domain/100G: 1
+EOF
+```
+
+Deploy NSC:
+```bash
+kubectl apply -k .
+```
+
+Wait for NSC pods are ready:
+```bash
+kubectl -n ${NAMESPACE} wait --for=condition=ready --timeout=1m pod -l app=nsc-kernel
+```
+
+Get NSC pods:
+```bash
+NSC1=$((kubectl get pods -l app=nsc-kernel -n ${NAMESPACE} --template '{{range .items}}{{.metadata.name}}{{" "}}{{end}}') | cut -d' ' -f1)
+TARGET_IP=$(kubectl exec -ti ${NSC1} -n ${NAMESPACE} -- ip route show | grep 172.10 | cut -d' ' -f1)
+NSC2=$((kubectl get pods -l app=nsc-kernel -n ${NAMESPACE} --template '{{range .items}}{{.metadata.name}}{{" "}}{{end}}') | cut -d' ' -f2)
+```
+
+Ping from NSC2 to NSC1:
+```bash
+kubectl -n ${NAMESPACE} exec ${NSC2} -- ping -c 4 ${TARGET_IP}
+```
+
+## Cleanup
+
+Delete ns:
+```bash
+kubectl delete ns ${NAMESPACE}
+```