Docker container running on an ec2 instance cant connect to RDS AWS

Question

I can access the RDS by ssh-ing into the EC2 instance, and passing the url and password to psql.

When I try to access the RDS via the docker container running on the EC2 using the same url and password I get the following output.

14:05:57.710 [error] Postgrex.Protocol (#PID<0.162.0>) failed to connect: ** (Postgrex.Error) FATAL 28000 (invalid_authorization_specification) no pg_hba.conf entry for host "144.44.44.444", user "postgres", database "postgres", no encryption

Note: I replaced the host IP with a random value above.

awstas · Accepted Answer

This was resolved by setting `ssl: true` int the runtime.exs file.

Riku_Kobayashi · Answer

Hello.

I think it's probably RDS PostgreSQL, but I think it can be resolved by setting the "rds.force_ssl" parameter in the RDS parameter group to 0, or by downloading the certificate described in the document below into the container and using it when connecting.  
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/UsingWithRDS.SSL.html

Docker container running on an ec2 instance cant connect to RDS AWS

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