CentOS7 下配置Docker远程访问与 windows下使用maven构筑Spring Boot 的 Docker镜像到远程服务端

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1、设置Docker服务端，以支持远程访问：

修改docker服务端配置文件，命令：

vim /usr/lib/systemd/system/docker.service

修改后：

[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
# Uncomment TasksMax if your systemd version supports it.
# Only systemd and above support this version.
#TasksMax=infinity
TimeoutStartSec=
# set delegate yes so that systemd does not reset the cgroups of docker containers
Delegate=yes
# kill only the docker process, not all processes in the cgroup
KillMode=process
# restart the docker process if it exits prematurely
Restart=on-failure
StartLimitBurst=
StartLimitInterval=60s
#remote call define
ExecStart=
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock[Install]
WantedBy=multi-user.target

以上加粗的蓝色内容即是新增配置，注意我使用的Docker版本为

Docker version 17.09.0-ce, build afdb6d4

不同的版本可能配置文件内容不一样。

刷新配置、重启docker，命令：

systemctl daemon-reload
systemctl restart docker

查看修改结果命令：

ps -ef|grep docker可看到：
......
root : ? :: /usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock
......

2、普通Linux下的Docker客户端通过指定服务端IP和端口的方式，可以远程访问Docker服务端，命令格式如下：

docker -H tcp://xxx.xxx.xxx.xxx:2375 images

如此可看到服务端的镜像列表

3、在Windows 中利用 Maven 为该Docker服务端构筑docker 镜像（该Windows中无须安装Docker）：

pom.xml配置插件：

<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<executable>true</executable>
</configuration>
</plugin> <plugin>
<groupId>com.spotify</groupId>
<artifactId>docker-maven-plugin</artifactId>
<version>0.4.13</version>
<configuration>
<imageName>liuyx/test:0.1</imageName>




<skipDockerBuild>false</skipDockerBuild>
<baseImage>java8</baseImage>
<entryPoint>["java","-jar","/${project.build.finalName}.jar"]</entryPoint>
<resources>
<resource>
<targetPath>/</targetPath>
<directory>${project.build.directory}</directory>
<include>${project.build.finalName}.jar</include>
</resource>
</resources>
</configuration>
</plugin>
</plugins>
</build>