Postgresql.conf not found when using volume mount

General Discussions
3

Instead of doing a config map, I simply copy this file to another directory and run postgres with the configuration in the changed directory using -c config_file:

1   FROM postgres:latest
  1 ARG VERSION
  2
  3 COPY deployment/postgres_init /docker-entrypoint-initdb.d
  4 USER postgres
  5 RUN initdb
  6 CMD postgres -c hba_file=/docker-entrypoint-initdb.d/pg_hba.conf -c config_file=/docker-entrypoint-initdb.d/postgresql.conf

But now I see this error:

prikshetsharma@Prikshets-MacBook-Pro humboi % kubectl logs -f postgres-deployment-64cbffd6d8-r5wtn
2021-08-10 05:42:14.072 GMT [7] LOG:  skipping missing configuration file "/var/lib/postgresql/data/postgresql.auto.conf"
2021-08-10 05:42:14.073 UTC [7] FATAL:  data directory "/var/lib/postgresql/data" has wrong ownership
2021-08-10 05:42:14.073 UTC [7] HINT:  The server must be started by the user that owns the data directory.

How to fix this?