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测试两个节点时,会出现问题.我的节点无法连接到种子节点.
build.sbt中的配置如下:
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)
topGatewayFrontend中的远程配置为:
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topGatewayBackend中是:
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]]由以下原因引起:[远程系统显式取消关联(原因未知).]
docker run命令为:
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-快照
我想知道如何使前端与后端成功关联.
预先感谢您的耐心解答.
最佳答案
检查此如何在docker中运行akka集群:http://blog.michaelhamrah.com/2014/06/akka-clustering-with-sbt-docker-and-sbt-native-packager/
原文链接:https://www.f2er.com/docker/532576.html一个简单的答案是,akka群集要求该地址必须与内部和外部地址一致.因此,在docker中启动akka应用程序时,需要使用为容器动态创建的内部ip地址.
您需要具有以下启动脚本:
#!/bin/bash
CLUSTER_IP=`/sbin/ifconfig eth0 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1 }'` $@
将其放入您的docker容器中,并在akka配置中使用CLUSTER_IP环境变量作为其群集主机地址.
更新:
在docker 1.10版本中,由于添加了新的网络功能,因此不需要启动脚本.您可以只使用容器的名称作为参考,而docker会为您修复地址.