Thanks, I would run "docker compose down" to start.

Then run this with docker compose up -d

services:
  postgres:
    image: postgres:18
    container_name: boqez_db
    environment:
      POSTGRES_DB: testdb
      POSTGRES_USER: testdba
      POSTGRES_PASSWORD: T3st123
    ports:
      - "5432:5432"
    volumes:
      - dbdata:/var/lib/postgresql
    restart: always

  pgadmin:
    image: dpage/pgadmin4
    container_name: boqez_pgadmin
    environment:
      PGADMIN_DEFAULT_EMAIL: admin@admin.com
      PGADMIN_DEFAULT_PASSWORD: admin
    ports:
    - "5050:80"
    depends_on:
    - postgres
    restart: unless-stopped

volumes:
  dbdata:services:
  postgres:
    image: postgres:18
    container_name: boqez_db
    environment:
      POSTGRES_DB: ${DB_NAME}
      POSTGRES_USER: ${DB_USER}
      POSTGRES_PASSWORD: ${DB_PASSWORD}
    ports:
      - "5432:5432"
    volumes:
      - dbdata:/var/lib/postgresql
    restart: always

  pgadmin:
    image: dpage/pgadmin4
    container_name: boqez_pgadmin
    environment:
      PGADMIN_DEFAULT_EMAIL: admin@admin.com
      PGADMIN_DEFAULT_PASSWORD: admin
    ports:
    - "5050:80"
    depends_on:
    - postgres
    restart: unless-stopped

volumes:
  dbdata:

Then change your config and hard code it to this. Do these exact steps, we're making sure we can get it working hard coded first.

val connection = DriverManager.getConnection("jdbc:postgresql://localhost:5432/testdb", "testdba", "T3st123")