Postgres is shutting down frequently

[vr2388]

We are using postgres docker image and it is restarting frequently.
Below are the logs for postgres restart.

2024-09-09 06:01:48.942 UTC [1] LOG: starting PostgreSQL 13.12 on x86_64-pc-linux-musl, compiled by gcc (Alpine 12.2.1_git20220924-r10) 12.2.1 20220924, 64-bit
2024-09-09 06:01:48.942 UTC [1] LOG: listening on IPv4 address "0.0.0.0", port 5432
2024-09-09 06:01:48.942 UTC [1] LOG: listening on IPv6 address "::", port 5432
2024-09-09 06:01:48.950 UTC [1] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
2024-09-09 06:01:48.986 UTC [21] LOG: database system was interrupted; last known up at 2024-09-04 14:23:35 UTC
2024-09-09 06:02:03.997 UTC [22] FATAL: the database system is starting up
2024-09-09 06:02:34.002 UTC [23] FATAL: the database system is starting up
2024-09-09 06:02:44.236 UTC [30] FATAL: the database system is starting up
2024-09-09 06:02:44.268 UTC [37] FATAL: the database system is starting up
2024-09-09 06:02:53.668 UTC [44] FATAL: the database system is starting up
2024-09-09 06:02:54.587 UTC [58] FATAL: the database system is starting up
2024-09-09 06:02:54.588 UTC [59] FATAL: the database system is starting up
2024-09-09 06:03:04.007 UTC [60] FATAL: the database system is starting up
2024-09-09 06:03:04.232 UTC [67] FATAL: the database system is starting up
2024-09-09 06:03:04.253 UTC [74] FATAL: the database system is starting up
2024-09-09 06:03:04.268 UTC [1] LOG: received fast shutdown request
2024-09-09 06:03:05.348 UTC [81] FATAL: the database system is shutting down