[Docker 4] Docker-compose

docker-compose란?

여러개의 container를 실행시키는 경우애 사용되는 방법으로 yaml 파일로 저장된 설정 파일이다.

설치

sudo apt install docker-compose

docker-compose (docker-compose.yaml fils is default file) up -d

docker-compose -f <config file> up -d

docker-compose.yaml 파일을 작성할 때 주의점

indentation은 무조건 스페이스로 구분하여야 한다.

version: '3'
services:
  nginx_8080:
    image: nginx
    restart: always
    hostname: nginx1
    container_name: cmp_nginx1_1
    ports:
      - 8080:80
    volumes:
      - /home/sin/nginx_doc_root:/usr/share/nginx/html 
    networks:
      mynet:
        ipv4_address: 172.20.0.10

  nginx_8081:
    image: nginx
    restart: always
    hostname: nginx2
    container_name: cmp_nginx2_1
    ports:
      - 8081:80
    volumes:
      - /home/sin/nginx_doc_root:/usr/share/nginx/html 
    networks:
      mynet:
        ipv4_address: 172.20.0.20

networks:
  mynet:
    ipam:
      driver: default
      config:
        - subnet: 172.20.0.0/24

sin@Ubuntu1804:~/docker-compose$ docker-compose -f docker-compose2.yaml ps
    Name                  Command               State    Ports
--------------------------------------------------------------
cmp_nginx1_1   /docker-entrypoint.sh ngin ...   Exit 0        
cmp_nginx2_1   /docker-entrypoint.sh ngin ...   Exit 0  

docker에서 사용되는 네트워크 장치 목록

sin@Ubuntu1804:~/docker-compose$ docker network ls
NETWORK ID     NAME                  DRIVER    SCOPE
f73d0758e54c   bridge                bridge    local
eb39b47c1c04   dockercompose_mynet   bridge    local
53529ddcbb7f   host                  host      local
c7f8e2a3d60d   none                  null      local