先写项目的启动脚本，命名为run.sh

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#!/bin/sh

if [ -z $JAVA_OPTS ];then
    JAVA_OPTS="-Xms256m -Xmx512m"
fi

if [ -z $JAR_PATH ];then
    JAR_PATH="/opt/server"
fi

if [ -z $EXAM_ENV ];then
    EXAM_ENV="prod"
fi

if [ x$LOG != "xfalse" ];then
    mkdir -p logs
    LOGGING_OPT="--logging.path=./logs"
fi

echo $JAVA_OPTS -Dlogging.path=./logs -DSpring.profiles.active=$EXAM_ENV -jar ${JAR_PATH}/*.jar

java $JAVA_OPTS -Dlogging.path=./logs -DSpring.profiles.active=$EXAM_ENV -jar ${JAR_PATH}/*.jar

dockerfile文件打包镜像

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FROM openjdk:8

RUN mkdir -p /opt/server/

COPY target/${'项目名称'}-SNAPSHOT.jar /opt/server

COPY run.sh /opt/server/

COPY src/main/resources/static /server

EXPOSE 8888

WORKDIR /opt/server

ENTRYPOINT ["sh", "/opt/server/run.sh"]

docker-compose.yml文件，依赖的镜像为MySQL以及redis

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version: '2.1'
services:
  exam:
    container_name: exam_server
    image: exam:1.0 
    ports:
      - 8888:8888
    environment:
      - DB_HOST=mysql
      - DB_PORT=3306
      - DB_NAME=exam_system
      - DB_USER=root
      - DB_PASSWORD=123456
      - REDIS_HOST=redis
      - REDIS_PASSWORD=123456
    depends_on:
      - mysql
      - redis
  mysql:
    container_name: exam_mysql
    image: mysql:5.7
    ports:
      - 3306:3306
    environment:
      - MYSQL_ROOT_PASSWORD=123456
    privileged: true
    volumes:
      - /opt/exam/volume_data/mysql/data:/var/lib/mysql
      - /opt/exam/volume_data/mysql/conf:/etc/mysql/conf.d
      - /opt/exam/init_sql:/docker-entrypoint-initdb.d
  redis:
    container_name: exam_redis
    image: redis:6
    command: redis-server /etc/redis/redis.conf --requirepass 123456
    privileged: true
    ports:
      - 6379:6379
    volumes:
      - /opt/exam/volume_data/redis/data:/data
      - /opt/exam/volume_data/redis/redis.conf:/etc/redis/redis.conf

其中需要把初始化数据库脚本放在/opt/server/init_sql目录下面

redis的配置文件放在/opt/server/volume_data/redis下面