docker中的akka​​节点明确解除关联

我在我的项目中使用akka 2.4-M2。 我想用docker部署我的项目。 但是，当我使用boot2docker来testing这两个节点时，出现了一个问题。 我的节点无法连接到种子节点。

build.sbt中的configuration如下：

lazy val `topGatewayFrontend` = (project in file("topGatewayFrontend")) .enablePlugins(PlayScala) .enablePlugins(DockerPlugin) .settings( name := "topGatewayFrontend", libraryDependencies ++= (Dependencies.topGatewayFrontend ++ Seq(cache, ws)), dockerExposedPorts := Seq(9000) ) lazy val `topGatewayBackend` = (project in file("topGatewayBackend")) .enablePlugins(JavaAppPackaging) .enablePlugins(DockerPlugin) .enablePlugins(UniversalPlugin) .settings( name := "topGatewayBackend", javaOptions in run ++= Seq( "-Djava.library.path=./sigar", "-Xms128m", "-Xmx512m"), // this enables custom javaOptions fork in run := true, libraryDependencies ++= Dependencies.topGatewayBackend ++ Seq(ws), dockerExposedPorts := Seq(9527) ).dependsOn(auditApi).aggregate(auditApi) 

在topGateway前端的远程configeration是：

 akka{ remote { log-sent-messages = on log-received-messages = on netty.tcp { hostname = ${?HOSTNAME} port = 9527 # external (logical) port bind-hostname = 0.0.0.0 bind-port = 0 } } cluster { seed-nodes = ["akka.tcp://application@"${?HOSTNAME}":9527"] roles = [topGatewayBackend] } } 

在顶部的网关是：

 akka{ remote { log-sent-messages = on log-received-messages = on netty.tcp { hostname = ${?HOSTNAME} port = 0 # external (logical) port bind-hostname = 0.0.0.0 bind-port = 0 } } cluster { seed-nodes = ["akka.tcp://application@"${?HOSTNAME}":9527"] roles = [topGatewayFrontend] } } 

我得到的日志如下：

在后端：

 [INFO] [07/12/2015 03:13:37.568] [application-akka.actor.default-dispatcher-16] [akka.cluster.Cluster(akka://application)] Cluster Node [akka.tcp://application@192.168.59.103:9527] - Metrics collection has started successfully [INFO] [07/12/2015 03:13:38.107] [application-akka.actor.default-dispatcher-16] [akka.cluster.Cluster(akka://application)] Cluster Node [akka.tcp://application@192.168.59.103:9527] - Leader is moving node [akka.tcp://application@192.168.59.103:9527] to [Up] [INFO] [07/12/2015 03:13:38.112] [application-akka.actor.default-dispatcher-4] [akka.tcp://application@192.168.59.103:9527/user/cluster-monitor] Member up akka.tcp://application@192.168.59.103:9527 with roles Set(topGatewayBackend) 

在前端：

 [INFO] [07/12/2015 03:13:47.558] [main] [akka.remote.Remoting] Starting remoting [INFO] [07/12/2015 03:13:47.842] [main] [akka.remote.Remoting] Remoting started; listening on addresses :[akka.tcp://application@192.168.59.103:34354] [INFO] [07/12/2015 03:13:47.883] [main] [akka.cluster.Cluster(akka://application)] Cluster Node [akka.tcp://application@192.168.59.103:34354] - Starting up... [INFO] [07/12/2015 03:13:48.057] [main] [akka.cluster.Cluster(akka://application)] Cluster Node [akka.tcp://application@192.168.59.103:34354] - Registered cluster JMX MBean [akka:type=Cluster] [INFO] [07/12/2015 03:13:48.058] [main] [akka.cluster.Cluster(akka://application)] Cluster Node [akka.tcp://application@192.168.59.103:34354] - Started up successfully [INFO] [07/12/2015 03:13:48.251] [application-akka.actor.default-dispatcher-17] [akka.cluster.Cluster(akka://application)] Cluster Node [akka.tcp://application@192.168.59.103:34354] - Metrics collection has started successfully [WARN] [07/12/2015 03:13:48.509] [application-akka.remote.default-remote-dispatcher-5] [akka.tcp://application@192.168.59.103:34354/system/endpointManager/reliableEndpointWriter-akka.tcp%3A%2F%2Fapplication%40192.168.59.103%3A9527-0] Association with remote system [akka.tcp://application@192.168.59.103:9527] has failed, address is now gated for [5000] ms. Reason: [Association failed with [akka.tcp://application@192.168.59.103:9527]] Caused by: [The remote system explicitly disassociated (reason unknown).] 

问题是[关联失败，[akka.tcp：//application@192.168.59.103：9527]]原因：[远程系统显式解除关联（原因未知）。]

docker运行命令是： docker run -e HOSTNAME=192.168.59.103 -p 9527:9527 docker.fenxibao.com/topgatewaybackend:1.0-SNAPSHOT和docker run -p 9000:9000 -e HOSTNAME=192.168.59.103 docker.fenxibao.com/topgatewayfrontend:1.0-SNAPSHOT

我想知道我能做些什么来使前端与后端成功关联。

预先感谢您的耐心解答。

Answer 1

检查如何在docker中运行akka集群： http ://blog.michaelhamrah.com/2014/06/akka-clustering-with-sbt-docker-and-sbt-native-packager/

一个简短的答案是akka集群要求地址与内部和外部地址一致。 所以当你在Docker中启动你的akka​​应用程序时，你需要使用为你的容器dynamic创build的内部IP地址。

你需要有一个像这样的启动脚本：

 #!/bin/bash CLUSTER_IP=`/sbin/ifconfig eth0 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1 }'` $@ 

把它放到你的Docker容器中，并在你的akka​​configuration文件中使用CLUSTER_IP环境variables作为它的集群主机地址。

更新：在docker版本1.10 +，由于添加了新的networkingfunction，没有必要有一个启动脚本。 您可以使用容器的名称作为参考，docker工人为您修复地址。