Unable to connect to cluster from application but able to connect from within application container when tried manually

[Preetam Keshari Nahak]

I have setup spilo cluster and I am able to connect to it from within the container hosting the cluster.

I have a deployment file which hosts a nodejs application and tries to connect to the psql cluster.

When i exec into the nodejs container and run psql -h postgresql-cluster.default.svc.cluster.local -U postgres and enter password, I am able to connect to db. (postgresql-cluster.default.svc.cluster.local is the name of the CLusterIP service which exposes the psql cluster)

But when I try to connect to db from nodejs application using 'pg' npm module with same host, user and password, I get the following error

error: pg_hba.conf rejects connection for host "10.244.4.39", user "postgres", database "uptime", no encryption

Below is the content fro pg_hba.config file

cat pg_hba.conf
Do not edit this file manually!
It will be overwritten by Patroni!
local all all trust
hostssl all +zalandos 127.0.0.1/32 pam
host all all 127.0.0.1/32 md5
hostssl all +zalandos ::1/128 pam
host all all ::1/128 md5
local replication standby trust
hostssl replication standby all md5
hostnossl all all all reject
hostssl all +zalandos all pam
hostssl all all all md5

exit

Please guide me through