This example shows that NSC and NSE on the one node can find each other by ipv6 addresses.
NSC and NSE are using the memif
mechanism to connect to its local forwarder.
Create test namespace:
NAMESPACE=($(kubectl create -f https://raw.githubusercontent.com/networkservicemesh/deployments-k8s/7be52e47e136c606a141b091c740b7a924e53597/examples/features/namespace.yaml)[0])
NAMESPACE=${NAMESPACE:10}
Select node to deploy NSC and NSE:
NODE=($(kubectl get nodes -o go-template='{{range .items}}{{ if not .spec.taints }}{{index .metadata.labels "kubernetes.io/hostname"}} {{end}}{{end}}')[0])
Create customization file:
cat > kustomization.yaml <<EOF
---
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: ${NAMESPACE}
bases:
- https://github.com/networkservicemesh/deployments-k8s/apps/nsc-memif?ref=7be52e47e136c606a141b091c740b7a924e53597
- https://github.com/networkservicemesh/deployments-k8s/apps/nse-memif?ref=7be52e47e136c606a141b091c740b7a924e53597
patchesStrategicMerge:
- patch-nsc.yaml
- patch-nse.yaml
EOF
Create NSC patch:
cat > patch-nsc.yaml <<EOF
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: nsc-memif
spec:
template:
spec:
containers:
- name: nsc
env:
- name: NSM_NETWORK_SERVICES
value: memif://icmp-responder/nsm-1
nodeName: ${NODE}
EOF
Create NSE patch:
cat > patch-nse.yaml <<EOF
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: nse-memif
spec:
template:
spec:
containers:
- name: nse
env:
- name: NSM_CIDR_PREFIX
value: 2001:db8::/116
nodeName: ${NODE}
EOF
Deploy NSC and NSE:
kubectl apply -k .
Wait for applications ready:
kubectl wait --for=condition=ready --timeout=1m pod -l app=nsc-memif -n ${NAMESPACE}
kubectl wait --for=condition=ready --timeout=1m pod -l app=nse-memif -n ${NAMESPACE}
Find NSC and NSE pods by labels:
NSC=$(kubectl get pods -l app=nsc-memif -n ${NAMESPACE} --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}')
NSE=$(kubectl get pods -l app=nse-memif -n ${NAMESPACE} --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}')
Check connectivity:
result=$(kubectl exec "${NSC}" -n "${NAMESPACE}" -- vppctl ping ipv6 2001:db8:: repeat 4)
echo ${result}
! echo ${result} | grep -E -q "(100% packet loss)|(0 sent)|(no egress interface)"
Check connectivity:
result=$(kubectl exec "${NSE}" -n "${NAMESPACE}" -- vppctl ping ipv6 2001:db8::1 repeat 4)
echo ${result}
! echo ${result} | grep -E -q "(100% packet loss)|(0 sent)|(no egress interface)"
Delete ns:
kubectl delete ns ${NAMESPACE}