remote-nsm-system-restart-memif-ip

Nsm system restart (remote case)

This example shows that NSM keeps working after restarting all management resources.

NSC and NSE are using the memif mechanism to connect to its local forwarder. Forwarders are using the wireguard mechanism to connect with each other.

Requires

Make sure that you have completed steps from basic.

Run

Deploy NSC and NSE:

kubectl apply -k https://github.com/networkservicemesh/deployments-k8s/examples/heal/remote-nsm-system-restart-memif-ip?ref=34e1f2476dbc21097ab0a50348a966fd58b79985

Wait for applications ready:

kubectl wait --for=condition=ready --timeout=1m pod -l app=nsc-memif -n ns-remote-nsm-system-restart-memif-ip

kubectl wait --for=condition=ready --timeout=1m pod -l app=nse-memif -n ns-remote-nsm-system-restart-memif-ip

Ping from NSC to NSE:

result=$(kubectl exec deployments/nsc-memif -n ns-remote-nsm-system-restart-memif-ip -- vppctl ping 172.16.1.100 repeat 4)
echo ${result}
! echo ${result} | grep -E -q "(100% packet loss)|(0 sent)|(no egress interface)"

Ping from NSE to NSC:

result=$(kubectl exec deployments/nse-memif -n ns-remote-nsm-system-restart-memif-ip -- vppctl ping 172.16.1.101 repeat 4)
echo ${result}
! echo ${result} | grep -E -q "(100% packet loss)|(0 sent)|(no egress interface)"

Restart nsm-system:

kubectl delete mutatingwebhookconfiguration nsm-mutating-webhook
kubectl delete ns nsm-system

kubectl create ns nsm-system

kubectl apply -k https://github.com/networkservicemesh/deployments-k8s/examples/basic?ref=34e1f2476dbc21097ab0a50348a966fd58b79985

Ping from NSC to NSE:

result=$(kubectl exec deployments/nsc-memif -n ns-remote-nsm-system-restart-memif-ip -- vppctl ping 172.16.1.100 repeat 4)
echo ${result}
! echo ${result} | grep -E -q "(100% packet loss)|(0 sent)|(no egress interface)"

Ping from NSE to NSC:

result=$(kubectl exec deployments/nse-memif -n ns-remote-nsm-system-restart-memif-ip -- vppctl ping 172.16.1.101 repeat 4)
echo ${result}
! echo ${result} | grep -E -q "(100% packet loss)|(0 sent)|(no egress interface)"

Cleanup

Delete ns:

kubectl delete ns ns-remote-nsm-system-restart-memif-ip