使用Java客戶端啟動Docker容器時拒絕連接

Question

我是docker的新手，我想使用java客戶端啟動docker容器，

我嘗試了https://github.com/docker-java/docker-java如下

package containers.launch_containers;

import com.github.dockerjava.api.DockerClient;
import com.github.dockerjava.core.DockerClientBuilder;

public class StartContainers{
     DockerClient dockerClient;

    public StartContainers() {
        startContainers();
    }

    public void startContainers() {
           try {

                dockerClient = DockerClientBuilder.getInstance("tcp://127.0.0.1:2375").build();
                //starting the container of hello-world 
                dockerClient.startContainerCmd("hello-world").exec();


    }catch(Exception ex)
           {
             ex.printStackTrace();
           }
    }

    public static void main(String args[])
    {
        StartContainers startContainers=new StartContainers();
    }   
}

在bashrc中設置所需的配置

導出DOCKER_HOST = tcp：//127.0.0.1：2375

export DOCKER_OPTS =“-H tcp：//127.0.0.1：2375 -H Unix：///var/run/docker.sock”

本地主機中的Docker映像

我有這個例外

javax.ws.rs.ProcessingException：org.apache.http.conn.HttpHostConnectException：連接到127.0.0.1:2375 [/127.0.0.1]失敗：org.glassfish.jersey.apache.connector上的連接被拒絕（連接被拒絕）。 org.glassfish.jersey.client.ClientRuntime.invoke（ClientRuntime.java:252）的org.glassfish.jersey.client.JerseyInvocation $ 1.call（JerseyInvocation.java:684）的ApacheConnector.apply（ApacheConnector.java:481） org.glassfish.jersey.internal.Errors.process（Errors.java:315）上org.glassfish.jersey.internal.Errors.process $ 1.call（JerseyInvocation.java:681）org.glassfish.jersey.internal.Errors.process （org.glassfish.jersey.internal.Errors.process（Errors.java:228）（org.glassfish.jersey.process.internal.RequestScope.runInScope（RequestScope.java:444）處的（Errors.java:297）。 org.glassfish.jersey.client.JerseyInvocation $ Builder.method（JerseyInvocation.java:437）上的glassfish.jersey.client.JerseyInvocation.invoke（JerseyInvocation.java:681）在org.glassfish.jersey.client.JerseyInvocation $ B com.github.dockerjava.jaxrs.StartContainerCmdExec.execute（StartContainerCmdExec.java:29）的com.github.dockerjava.jaxrs.StartContainerCmdExec.execute（StartContainerCmdExec.java:12）的uilder.post（JerseyInvocation.java:343） .github.dockerjava.jaxrs.AbstrSyncDockerCmdExec.exec（AbstrSyncDockerCmdExec.java:23）位於com.github.dockerjava.core.command.AbstrDockerCmd.exec（AbstrDockerCmd.java:35）位於com.github.dockerjava.core.command.StartContainerCmdImpl .exec（StartContainerCmdImpl.java:46）在container.launch_containers.StartContainers.startContainers（StartContainers.java:18）在container.launch_containers.StartContainers。（StartContainers.java:10）在container.launch_containers.StartContainers.main（StartContainers.java） ：29）

Answer 1

我解決了這個問題，我應該獲得如下容器ID

   dockerClient = DockerClientBuilder.getInstance().build();
    //starting the container    
   CreateContainerResponse container = dockerClient.createContainerCmd("hello-world")
           .withCmd()
           .exec();
   dockerClient.startContainerCmd(container.getId()).exec();
   //stop the container 
   dockerClient.stopContainerCmd(container.getId()).exec();

參考

https://github.com/docker-java/docker-java/wiki