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>
<!-- 本以为在此设置 前文服务端的地址和端口 可以生效,但是始终会报一个tcp protocol is not supported,鄙人才疏学浅,终究不知为什么,我们还是在别的地方设置吧 -->
<!--<dockerHost>tcp://xxx.xxx.xxx.xxx:2375</dockerHost>-->
<!-- 设置Dockerfile路径,设置了就会忽略baseImage和entryPoint等Dockerfile中应出现的东西,转而去执行Dockerfile-->
<!--<dockerDirectory>src/main/docker</dockerDirectory>-->
<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>
构筑命令:
#在此,先设置当前的环境变量“DOCKER_HOST”为前文提到的docker服务端的ip和端口,当然也可以直接去系统环境变量设置
set DOCKER_HOST=tcp://xxx.xxx.xxx.xxx:2375
mvn clean package -X docker:build
构筑完毕后,可在服务端查看构筑结果。
(完毕)