my file learn about tech container (docker, podman, kubernetes)
services:
  app:
    container_name: app
    build:
      context: ./app
      dockerfile: dockerfile
    image: "app-golang:1.0.0" # nama image 
    environment:
      - "APP_PORT=9000"
    ports:
      - "9000:9000"
# context => lokasi folder path berisi dockerfile
# dockerfil => nama dockerfile
# image => nama image hasil build
# args => argument untuk environment docker file
docker compose build
docker image rm nama_image