1.2.5 - Running Postgres and pgAdmin with Docker-Compose

Last updated Jan 20, 2025

Youtube Video | ~9 min

https://www.youtube.com/watch?v=hKI6PkPhpa0&list=PL3MmuxUbc_hJed7dXYoJw8DoCuVHhGEQb&index=9&pp=iAQB

✍️ This video is an introduction to docker-compose where we will learn how to configure postgres and pgadmin in a docker-compose yaml file. We will then learn how to run and close it down.

docker-compose comes with docker desktop on Mac & Windows. You can read more about docker compose here https://docs.docker.com/compose/

"Compose simplifies the control of your entire application stack, making it easy to manage services, networks, and volumes in a single, comprehensible YAML configuration file. Then, with a single command, you create and start all the services from your configuration file." - https://docs.docker.com/compose/. Now, we do not need to do the network steps we did in 1.2.3 to connect our two containers under a network, but instead can use a docker-compose YAML file.

📝 docker-compose.yaml

services:
  pgdatabase:
    image: postgres:13
    environment:
      - POSTGRES_USER=root
      - POSTGRES_PASSWORD=root
      - POSTGRES_DB=ny_taxi
    volumes:
      - "./ny_taxi_postgres_data:/var/lib/postgresql/data:rw"
    ports:
      - "5432:5432"
  pgadmin:
    image: dpage/pgadmin4
    environment:
      - PGADMIN_DEFAULT_EMAIL=[e-mail]
      - PGADMIN_DEFAULT_PASSWORD=root
    ports:
      - "8080:80"

◼️ Terminal runs the docker-compose.yaml and -d so we can still use our terminal

docker-compose up -d

◼️ Terminal stops the run

docker-compose down

👀 Note that in the current docker compose, we now write compose.yaml files and run it using docker compose up -d so there is a space between the works instead of a dash -.

Resources

Quickly set up a local postgres database using dockerMedium

📚 Docker compose fundamentals

📚 Docker-compose Example