如何在 NGINX 上为 PostgreSQL 配置 proxy_pass？

Question

I have a PostgreSQL server started at a remote machine on the port 15432 . I want to configure NGINX to make the database available remotely by host db.domain.my and port 5432 . The configuration I tried is:

server {
    listen 5432;
    server_name db.domain.my;

    location / {
        proxy_pass http://127.0.0.1:15432/;
    }
}

When I try to connect the database remotely with psql I get the error:

$ psql -h db.domain.my -U myuser
psql: received invalid response to SSL negotiation: H

I also tried to add ssl word after listen 5432 without any success.

How do I configure NGINX correctly?

Answer 1

Maybe remove http:// because it is a TCP connection (not a HTTP connection) and add so_keepalive=on to listen 5432; so the connection stays open.

Maybe you have to use stream instead of http block: https://docs.nginx.com/nginx/admin-guide/load-balancer/tcp-udp-load-balancer/