Docker Postgres and Adminer accept connection but doesn't work

Question

On my rasperry pi 4 I've installed docker and docker-compose and now I'm tring to install and use Postgres and Adminer following that https://hub.docker.com/_/postgres I've created docker-compose.yaml file as follow:

# Use postgres/example user/password credentials
version: '3.1'

services:

  db:
    image: postgres
    restart: unless-stopped
    environment:
      POSTGRES_PASSWORD: postgres
      POSTGRES_USER: postgres
      POSTGRES_DB: postgres
    ports:
      - 5432:5432

  adminer:
    image: adminer
    restart: unless-stopped
    ports:
      - 8080:8080

and i run it with

docker-compose -f docker-compose.yaml up -d

after that DB_1 starts and adminer too but when i try connect to http://192.168.1.38:8080/ i can't reach it even if i try connect to postgres through pgAdmin it's says

could not connect to server: Connection refused (0x0000274D/10061) Is the server running on host "192.168.1.38" and accepting TCP/IP connections on port 5432?

however if i don't use docker-compose but just

docker run --name postgres -d --restart unless-stopped -p 5432:5432 -e POSTGRES_PASSWORD=123456 -v ${PWD}/data:/var/lib/postgresql/data postgres

it's work through pgAdmin

do you know what i'm doing wrong?

UPDATE: seems the problem is with docker-compose because any kind of docker-compose.yml file block connection to it...

with a container with djgango i tried to start server and it's works but when i try reach page it seem bloccked too

when i run docker-compose.yaml file docker-compose ps output is:

sudo netstat -tulpn screenshot

Answer 1

PgAdmin can't reach 5432 ports because you don't expose it. Like for Adminer you need to expose the Postgres port 5432 on your machine in your compose file.

version: '3.1'

services:

  db:
    image: postgres
    restart: unless-stopped
    environment:
      POSTGRES_PASSWORD: postgres
      POSTGRES_USER: postgres
      POSTGRES_DB: postgres
    ports:
      - 5432:5432

  adminer:
    image: adminer
    restart: unless-stopped
    ports:
      - 8080:8080

Answer 2

聚会有点晚了，但您需要做的是找出 postgres 容器的 IP 地址，并将其用作您的主机。