docker笔记5-使用docker-compose build image像并启动应用

使用docker-compose build image像并启动应用

1.准备材料

website-1.0.0.jar Dockerfile docker-compose.yml

Dockerfile

FROM java:8-jre-alpine
MAINTAINER [email protected]
ENV JAVA_OPTS null
WORKDIR /home/portal/website
ADD /home/portal/website/website-1.0.0.jar /home/portal/website/
EXPOSE 8081
ENTRYPOINT [ "sh", "-c", "java $JAVA_OPTS -Djava.security.egd=file:/dev/./urandom -jar website-1.0.0.jar" ]
VOLUME /home/portal/website:/home/portal/website

docker-compose.yml(启动单个容器)

version: '3'
services:
  website:
    build:
      context: .
      dockerfile: Dockerfile
    image: website:1.0.0
    container_name: website
    restart: always
    networks:
      - nets
    volumes: 
      - /home/portal/website/logs/:/home/portal/website/logs/
    ports:
      - "8081:8081"
    environment:    
      - JAVA_OPTS=-Xmx256M -Dspring.profiles.active=test -Duser.timezone=GMT+08
networks: 
  nets:
    external: false

2.将以上材料放到/home/portal/website目录

3.build镜像启动应用：执行docker-compose up -d

4.启动多个

docker-compose.yml

version: '3'
services:
  web1:
    build: .
    image: web:1.0
    container_name: web
    restart: always
    networks:
      - nets
    volumes:
      - /home/portal/web/logs/:/home/portal/web/logs/
    ports:
      - "8081:8081"
    environment:
      - JAVA_OPTS=-Xmx512M -Dspring.profiles.active=test -DPWD=12345 -Duser.timezone=GMT+08
  web-backup:
    image: web:1.0
    container_name: web-backup
    restart: always
    networks:
      - nets
    volumes:
      - /home/portal/web/logs/:/home/portal/web/logs/
    ports:
      - "8082:8081"
    environment:
      - JAVA_OPTS=-Xmx512M -Dspring.profiles.active=test -DPWD=12345 -Duser.timezone=GMT+08
networks:
  nets:
    external: false