Docker Compose: Set up pgAdmin and Postgres in 1 minute

Create the file docker-compose.yml

version: '3.8'
services:
  pg:
    container_name: pg_container
    image: postgres
    environment:
      POSTGRES_USER: admin
      POSTGRES_PASSWORD: admin
      POSTGRES_DB: test_db
    ports:
      - "5432:5432"
  pgadmin:
    container_name: pgadmin_container
    image: dpage/pgadmin4
    environment:
      PGADMIN_DEFAULT_EMAIL: admin@admin.com
      PGADMIN_DEFAULT_PASSWORD: admin
    ports:
      - "5555:80"

Then run the docker compose up

docker compose up -d

Now you see it is all running with

docker ps

Common Problem: Clear up when config change

When you change something like user ,password or other configuration. Docker will try to load existing container and it might have some error like below.

Error response from daemon: Conflict. The container name "Name ..."
is already in use by container "Hash ..."
You have to remove (or rename) that container to be able to reuse that name.

Then you will clear up with

docker container prune

Common Problem: WSL issue to access localhost

localhost is not working you need to specify the name of the docker process pg_db where they have the DNS for them.