# Docker Logstash Error: Cannot assign requested address **URL:** \ **Category:** Logstash\ **Tags:** docker\ **Created:** [June 8, 2022, 2:30pm UTC](https://discuss.elastic.co/t/docker-logstash-error-cannot-assign-requested-address/306711 "2022-06-08T14:30:52Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Francesco66](https://avatars.discourse-cdn.com/v4/letter/f/e5b9ba/32.png) [@Francesco66](https://discuss.elastic.co/u/Francesco66)\ **Post date:** [June 8, 2022, 2:30pm UTC](https://discuss.elastic.co/t/docker-logstash-error-cannot-assign-requested-address/306711/1 "2022-06-08T14:30:52Z")
```auto Hello , I am running a Logstash as Docker container using the following command: .......... docker run --rm -d --name logstash-Casex -p 8080:8080 -p 8081:8081 -v /Logstash_custom_configs/config/pipelines.yml:/usr/share/logstash/config/pipelines.yml -v /Logstash_custom_configs/mycurated:/usr/share/logstash/zlda-pipeline-curated -v /Logstash_custom_configs/myraw:/usr/share/logstash/zlda-pipeline-raw -v /tmp:/tmp docker.elastic.co/logstash/logstash:7.12.0 ...... and I expect following input plugin is read (it's stored as B_cdpz.conf under Logstash_custom_configs/mycurated): # IZCDP Elastic Stack Ingestion # # TCPIP Input Stage # # Generated by IBM for IBM Z Common Data Provider # Copyright IBM Corporation (C) 2017, 2019 # # Licensed for usage ingesting data streams from IBM Z Common Data # Provider through Logstash # input { tcp { host => "9.30.118.124" port => 8081 } } ----- But I cannot bind the ip address 9.30.118.124 and port 8081. Here is the main extract from the logstash log: .......... [2022-06-08T09:18:46,775][WARN][deprecation.logstash.filters.grok][zlda-curated] Relying on default value of `pipeline.ecs_compatibility`, which may change in a future major release of Logstash. To avoid unexpected changes when upgrading Logstash, please explicitly declare your desired ECS Compatibility mode. [2022-06-08T09:18:46,855][INFO][logstash.javapipeline][zlda-curated] Starting pipeline {:pipeline_id=>"zlda-curated", "pipeline.workers"=>8, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50, "pipeline.max_inflight"=>1000, "pipeline.sources"=>["/usr/share/logstash/zlda-pipeline-curated/B_cdpz.conf", "/usr/share/logstash/zlda-pipeline-curated/E_transform.conf", "/usr/share/logstash/zlda-pipeline-curated/H_smf30.conf", "/usr/share/logstash/zlda-pipeline-curated/H_smf80_command.conf", "/usr/share/logstash/zlda-pipeline-curated/H_smf80_logon.conf", "/usr/share/logstash/zlda-pipeline-curated/H_smf80_operation.conf", "/usr/share/logstash/zlda-pipeline-curated/H_smf80_resource.conf", "/usr/share/logstash/zlda-pipeline-curated/H_zos_syslog.conf", "/usr/share/logstash/zlda-pipeline-curated/Q_elasticsearch.conf"], :thread=>"#"} [2022-06-08T09:18:47,817][INFO][logstash.javapipeline][zlda-curated] Pipeline Java execution initialization time {"seconds"=>0.96} [2022-06-08T09:18:47,887][INFO][logstash.javapipeline][zlda-curated] Pipeline started {"pipeline.id"=>"zlda-curated"} [2022-06-08T09:18:47,897][INFO][logstash.inputs.tcp][zlda-curated][72fb44da108dda9e2da6c6acabb420ee1319c6533076acd981730432b8de1822] Starting tcp input listener {:address=>"9.30.118.124:8081", :ssl_enable=>false} [2022-06-08T09:18:47,919][ERROR][logstash.javapipeline][zlda-curated][72fb44da108dda9e2da6c6acabb420ee1319c6533076acd981730432b8de1822] A plugin had an unrecoverable error. Will restart this plugin. Pipeline_id:zlda-curated Plugin: "9.30.118.124", port=>8081, id=>"72fb44da108dda9e2da6c6acabb420ee1319c6533076acd981730432b8de1822", enable_metric=>true, codec=>"line_1cf98935-5bed-4143-a6c4-ad9d93d9a05b", enable_metric=>true, charset=>"UTF-8", delimiter=>"\n">, mode=>"server", proxy_protocol=>false, ssl_enable=>false, ssl_verify=>true, ssl_key_passphrase=>, tcp_keep_alive=>false, dns_reverse_lookup_enabled=>true> Error: Cannot assign requested address Exception: Java::JavaNet::BindException Stack: sun.nio.ch.Net.bind0(Native Method) sun.nio.ch.Net.bind(sun/nio/ch/Net.java:455) sun.nio.ch.Net.bind(sun/nio/ch/Net.java:447) sun.nio.ch.ServerSocketChannelImpl.bind(sun/nio/ch/ServerSocketChannelImpl.java:227) io.netty.channel.socket.nio.NioServerSocketChannel.doBind(io/netty/channel/socket/nio/NioServerSocketChannel.java:134) io.netty.channel.AbstractChannel$AbstractUnsafe.bind(io/netty/channel/AbstractChannel.java:550) io.netty.channel.DefaultChannelPipeline$HeadContext.bind(io/netty/channel/DefaultChannelPipeline.java:1334) io.netty.channel.AbstractChannelHandlerContext.invokeBind(io/netty/channel/AbstractChannelHandlerContext.java:506) io.netty.channel.AbstractChannelHandlerContext.bind(io/netty/channel/AbstractChannelHandlerContext.java:491) io.netty.channel.DefaultChannelPipeline.bind(io/netty/channel/DefaultChannelPipeline.java:973) io.netty.channel.AbstractChannel.bind(io/netty/channel/AbstractChannel.java:248) io.netty.bootstrap.AbstractBootstrap$2.run(io/netty/bootstrap/AbstractBootstrap.java:356) io.netty.util.concurrent.AbstractEventExecutor.safeExecute(io/netty/util/concurrent/AbstractEventExecutor.java:164) io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(io/netty/util/concurrent/SingleThreadEventExecutor.java:472) io.netty.channel.nio.NioEventLoop.run(io/netty/channel/nio/NioEventLoop.java:500) io.netty.util.concurrent.SingleThreadEventExecutor$4.run(io/netty/util/concurrent/SingleThreadEventExecutor.java:989) io.netty.util.internal.ThreadExecutorMap$2.run(io/netty/util/internal/ThreadExecutorMap.java:74) io.netty.util.concurrent.FastThreadLocalRunnable.run(io/netty/util/concurrent/FastThreadLocalRunnable.java:30) java.lang.Thread.run(java/lang/Thread.java:834) .... How can I map the logstash internal docker hostname and port to the ones I have configured in my input plugin? Thanks ``` ---
**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\ **Post date:** [June 8, 2022, 3:08pm UTC](https://discuss.elastic.co/t/docker-logstash-error-cannot-assign-requested-address/306711/2 "2022-06-08T15:08:37Z")
> [@Francesco66](#): > > ```auto > input { > tcp { > host => "9.30.118.124" > port => 8081 > } > } > > ``` In the `host` option you can only use an IP address that is available in the container. You should remove the `host` option or set it to `0.0.0.0` so Logstash will bind to the private IP of the container and your docker host will redirect the requests to it. ---
**Author:** ![Francesco66](https://avatars.discourse-cdn.com/v4/letter/f/e5b9ba/32.png) [@Francesco66](https://discuss.elastic.co/u/Francesco66)\ **Post date:** [June 9, 2022, 5:42am UTC](https://discuss.elastic.co/t/docker-logstash-error-cannot-assign-requested-address/306711/3 "2022-06-09T05:42:23Z")
Hello Leandro, thanks a lot for your prompt and valuable help! I have specified host =\> "0.0.0.0" port =\> 8081 and Logstash can successfully start and I can connect to it. Thanks really a lot. Bye ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 7, 2022, 5:42am UTC](https://discuss.elastic.co/t/docker-logstash-error-cannot-assign-requested-address/306711/4 "2022-07-07T05:42:32Z")
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