Could we assign permission read-only or read-write on statefulset pods ?

[khangtictoc]

When deploying a cluster, i have set 2 replicas for postgres operator: one has label "spilo-role=replica", one has label role "spilo-role=master". But the permissions for both pods are "read-write" permission on the local volumes.

Can we make it "read-only" for pod with label "replica" and "read-write" for one with "master" ?