[root@izwz9eftauv7x69f5jvi96z docker]# vim /usr/lib/systemd/system/docker.service
#修改ExecStart這行
ExecStart=/usr/bin/dockerd  -H tcp://0.0.0.0:2375  -H unix:///var/run/docker.sock
#重新加載配置文件
[root@izwz9eftauv7x69f5jvi96z docker]# systemctl daemon-reload    
#重啟服務
[root@izwz9eftauv7x69f5jvi96z docker]# systemctl restart docker.service 
#查看端口是否開啟
[root@izwz9eftauv7x69f5jvi96z docker]# netstat -nlpt
#直接curl看是否生效
[root@izwz9eftauv7x69f5jvi96z docker]# curl http://127.0.0.1:2375/info

開啟端口：80
firewall-cmd --zone=public --add-port=80/tcp --permanent

查詢端口號80 是否開啟：
firewall-cmd --query-port=80/tcp

重啟防火墻：
firewall-cmd --reload

查詢有哪些端口是開啟的:
firewall-cmd --list-port

 <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>com.spotify</groupId>
                <artifactId>docker-maven-plugin</artifactId>
                <version>1.0.0</version>
                <configuration>
                    <imageName>${docker.image.prefix}/${project.artifactId}</imageName>
                    <dockerDirectory></dockerDirectory>
                    <resources>
                        <resource>
                            <targetPath>/</targetPath>
                            <directory>${project.build.directory}</directory>
                            <include>${project.build.finalName}.jar</include>
                        </resource>
                    </resources>
                </configuration>
            </plugin>
        </plugins>
    </build>

#依賴的環(huán)境
FROM openjdk:11-jre
MAINTAINER Wilmiam
#掛在的數(shù)據(jù)卷
VOLUME /tmp
#target/docker-0.0.1-SNAPSHOT.jar 這個是你打的包的目錄
ADD target/docker-0.0.1-SNAPSHOT.jar app.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
#拋出的端口，這個就是需要綁定的端口
EXPOSE 8080

yum install ntpdate
ntpdate time.windows.com