无法通过 dockerized pgAdmin 连接到 dockerized Postgres

Question

I have a docker-compose file:

version: '3'

services:
  db:
    image: postgres
    ports:
      - "5432:5432"
    environment:
        POSTGRES_DB: ayyy
        POSTGRES_USER: letsgo
        POSTGRES_PASSWORD: pwpwpwpw22
  pgadmin:
    image: dpage/pgadmin4
    environment:
        PGADMIN_DEFAULT_EMAIL: user@example.com
        PGADMIN_DEFAULT_PASSWORD: pwpwpwpw1
    ports:
      - "5433:80"

(I changed the environment variables to not spoof my credentials)

However I am unable to connect to my Postgres server through pgAdmin. pgAdmin is using reverse proxy from port 5433 to my subdomain pgadmin.domain.com . I am also reverse proxying HTTP from pgAdmin's container into HTTPS. (I do not know if that could be an issue)

This is the error I get:

Unable to connect to server: connection to server at "db" (192.168.32.3), port 5432 failed: timeout expired

If I use localhost as a hostname, I get this:

Unable to connect to server: connection to server at "localhost" (127.0.0.1), port 5432 failed: Connection refused Is the server running on that host and accepting TCP/IP connections? connection to server at "localhost" (::1), port 5432 failed: Address not available Is the server running on that host and accepting TCP/IP connections?

UPDATE: I am not even able to ping the containers between each other. The service name is correctly resolved to IP, but I get no response.

Answer 1

I was even unable to open ports on my server, so I reinstalled it. Everything works as it should since then.