Docker compose For Spring Boot PostgreSQL

docker-compose.yml

# USING LINKS

#version: "3.7"
#services:
#  api_service:
#    build: .
#    restart: always
#    ports:
#      - 8080:8080
#    links:
#      - postgres_db:database
#  postgres_db:
#    image: "postgres:11.4"
#    restart: always
#    ports:
#      - 5433:5432
#    environment:
#      POSTGRES_DB: java_to_dev_app_db
#      POSTGRES_PASSWORD: nE5kMc7JCGNqwDQM

#USING DEPENDS ON

version: "3.7"
services:
  api_service:
    build: .
    restart: always
    ports:
      - 8080:8080
    depends_on:
      - postgres_db
  postgres_db:
    image: "postgres:11.4"
    restart: always
    ports:
      - 5433:5432
    environment:
      POSTGRES_DB: java_to_dev_app_db
      POSTGRES_PASSWORD: nE5kMc7JCGNqwDQM