docker-compose.yaml

services:
  keycloak:
    image: quay.io/keycloak/keycloak:latest
    container_name: keycloak
    # Use Keycloak's new distribution with `start-dev`.
    command: start-dev --http-port=8080
    environment:
      # Set the administrative username and password
      KEYCLOAK_ADMIN: admin
      KEYCLOAK_ADMIN_PASSWORD: admin

      # Optional: connect to the external Postgres DB
      KC_DB: postgres
      KC_DB_URL_HOST: postgres
      KC_DB_USERNAME: keycloak
      KC_DB_PASSWORD: secret
      # Optionally specify the Keycloak DB name here if needed.
      # If not, the default database set up in Postgres container is used.
      # KC_DB_URL_DATABASE: keycloak

    ports:
      - "8080:8080"
    depends_on:
      - postgres

  postgres:
    image: postgres:15-alpine
    container_name: postgres
    environment:
      POSTGRES_DB: keycloak
      POSTGRES_USER: keycloak
      POSTGRES_PASSWORD: secret
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data

volumes:
  postgres_data: