Containerised Shiny Proxy Not Working on Windows Server 2019


I have managed to get Shiny Proxy working directly on a Windows Server 2019 host with the Shiny App correctly opening. However when I try and run Shiny Proxy in a Windows container on the host I get the following error message when attempting to open up the app.

Message: Failed to start container

Is there any way to solve this?

Please see more stack trace error excerpts below and the Windows Containerised Shiny Proxy Setup screen shot:

Note I haven’t included the shiny-euler-app docker image and setup as I know running Shiny Proxy not in a container works with it.

Status code: 500
Message: Failed to start container
Stack Trace:
eu.openanalytics.containerproxy.ContainerProxyException: Failed to start container
at eu.openanalytics.containerproxy.backend.AbstractContainerBackend.startProxy(
at eu.openanalytics.containerproxy.service.ProxyService.startProxy(
at eu.openanalytics.shinyproxy.controllers.AppController.getOrStart(
at eu.openanalytics.shinyproxy.controllers.AppController.startApp(
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(
at sun.reflect.DelegatingMethodAccessorImpl.invoke(
at java.lang.reflect.Method.invoke(

at eu.openanalytics.containerproxy.backend.AbstractContainerBackend.startProxy(
… 106 more
Caused by: java.util.concurrent.ExecutionException: org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375 [localhost/, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect