使用持久卷启动PostgreSQL容器[docker compose]

Question

I have a problem with my database container, so I want to mount an existant database(from host) to the generated container (with docker-compose). I will show you the important part of the yaml file :

postgres:
        image: postgres
        environment:
            POSTGRES_USER: user
            POSTGRES_PASSWORD: pass
        ports:
        - "5432:5432"
        volumes:
        - ./postgres/data:/var/lib/postgresql/data

So, when I build and turn on docker-compose, postgres container exited:

If I remove the persistant volume, it wokrs ! I have also tested with mysql, mongodb -> same issue.

Could you light me up ?

Thanks.

Answer 1

I resolve this matter and I want to share it. In fact, for getting our container turns on after ' docker-compose up ' command, we should add tty and command arguments like :

postgres:
        image: postgres
        environment:
            POSTGRES_USER: user
            POSTGRES_PASSWORD: pass
        ports:
        - "5432:5432"
        volumes:
        - ./postgres/data:/var/lib/postgresql/data
        tty: true
        command: /bin/bash

I hope that would be useful.

Answer 2

Easiest way is to named volumes that can also be reused across multiple services, and are easily retrieved and inspected using the docker command line...

1. First create volume docker volume create db-data
2. Now modify your yml file

    services
        postgres:
            image: postgres
            environment:
                POSTGRES_USER: user
                POSTGRES_PASSWORD: pass
            ports:
            - "5432:5432"
            volumes:
            - db-data:/var/lib/postgresql/data
    volumes:
       db-data:

3. You can inspect the volume docker volume inspect db-data

Source: Compose file reference