Facing permission issue when creating application using postgres image

Issue

• When postrgres image is used with persistent storage it always fails with below errors :

waiting for server to start....FATAL:  data directory "/var/lib/pgsql/data/userdata" has wrong ownership
HINT:  The server must be started by the user that owns the data directory.
pg_ctl: could not start server
Examine the log output.
 stopped waiting

or

chmod: changing permissions of '/var/lib/pgsql/data/userdata': Operation not permitted