webhook-smartvf

Client requests for postgresql service over SmartVF

This example demonstrates how Postgres-client can get connectivity to Postgres-server deployment via NSM over SmartVF interfaces. Client pod and server deployment located on different nodes. The nodes must support SmartVF interface pool as resources.

Requires

Make sure that you have completed steps from ovs setup

Run

Create test namespace:

kubectl create ns ns-webhook

Note: Admission webhook is required and should be started at this moment.

WH=$(kubectl get pods -l app=admission-webhook-k8s -n nsm-system --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}')
kubectl wait --for=condition=ready --timeout=1m pod ${WH} -n nsm-system

Deploy postgres-nsc and postgres-nse

kubectl apply -k https://github.com/networkservicemesh/deployments-k8s/examples/features/webhook-smartvf?ref=58a90eb58a3e06f02cbd99c221b35327488025cc

Wait for applications ready:

kubectl wait --for=condition=ready --timeout=5m pod -l app=nse-kernel -n ns-webhook-smartvf

kubectl wait --for=condition=ready --timeout=1m pod postgres-cl -n ns-webhook-smartvf

Find NSC and NSE pods by labels:

NSC=$(kubectl get pods -l app=postgres-cl -n ns-webhook-smartvf --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}')

NSE=$(kubectl get pods -l app=nse-kernel -n ns-webhook-smartvf --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}')

Try to connect from postgres-nsc to database from postgresql service:

kubectl exec ${NSC} -n ns-webhook-smartvf -c postgres-cl -- sh -c 'PGPASSWORD=admin psql -h 172.16.1.100 -p 5432 -U admin test'

Cleanup

Delete ns:

kubectl delete ns ns-webhook-smartvf