Use [`mc admin policy`](https://min.io/docs/minio/linux/reference/minio-mc-admin/mc-admin-policy.html) to create canned policies. Server provides a default set of canned policies namely `writeonly`, `readonly` and `readwrite` *(these policies apply to all resources on the server)*. These can be overridden by custom policies using `mc admin policy` command.

          volumeMounts:
            - name: minio-user
              mountPath: "/tmp/credentials"
              readOnly: true
            - name: export
              mountPath: {{ .Values.mountPath }}
              {{- if and .Values.persistence.enabled .Values.persistence.subPath }}
              subPath: "{{ .Values.persistence.subPath }}"