docker:build异常HttpHostConnectException: Connect to localhost:2375

向右看齐 2022-05-27 23:19 212阅读 0赞

docker安装在centos6.5

\{project\_home\}>mvn clean package docker:build -DskipTests 遇到以下异常

[ERROR] Failed to execute goal com.spotify:docker-maven-plugin:0.4.3:build (default-cli) on project eurekaserver: Exception caught: java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect -> [Help 1]
    [ERROR]
    [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
    [ERROR] Re-run Maven using the -X switch to enable full debug logging.
    [ERROR]
    [ERROR] For more information about the errors and possible solutions, please read the following articles:
    [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

经查有两个地方需要更新

*  升级docker-maven-plugin版本，从0.4.3更新到1.0.0

<plugin>
    				<groupId>com.spotify</groupId>
    				<artifactId>docker-maven-plugin</artifactId>
    				<version>1.0.0</version>
    ...
        	    	        </plugin>

*  docker开启远程API端口，有两种方式，可依据自己的环境选择

a.1) 编辑docker

vim /etc/sysconfig/docker
    
    other_args="-H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock"
    
    :wq
    
    service docker restart

a.2) 在windows系统环境变量中新建DOCKER\_HOST值为tcp://\{docker\_ip\}:2375，将这里的\{docker\_ip\}，替换为docker所在的centos服务器IP或主机名（用主机名，需要windows配置hosts)

b.1) 修改docker配置文件

#vi /usr/lib/systemd/system/docker.service
    在ExecStart这一行后面加上（这里就写4个0，别改成自己的ip） 
    -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock
    
    改完后效果如下
    ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock
    
    :wq
    保存退出，
    
    重新加载配置文件#systemctl daemon-reload   ,
    启动docker #systemctl start docker

参考文档：

https://blog.csdn.net/superdangbo/article/details/78558917

https://blog.csdn.net/lvyuan1234/article/details/69255944

https://www.oschina.net/question/2520876\_2218738