Once you create a PVC use it in a Pod definition file by specifying the PVC name under persistentVolumeClaim section in the volumes section like this:
apiVersion: v1
kind: Pod
metadata:
name: mypod
spec:
containers:
- name: myfrontend
image: nginx
volumeMounts:
- mountPath: "/var/www/html"
name: mypd
volumes:
- name: mypd
persistentVolumeClaim:
claimName: myclaim
The same is true for ReplicaSets or Deployments. Add this to the pod template section of a Deployment on ReplicaSet.