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I'm trying to deploye a war on a tomcat docker container. Tomcat manager is accessible by default on the listined http port. I don't want this behavior. To avoid this i hava done a ROOT.xml context file as explained here https://stackoverflow.com/a/7706950/3143009.

ROOT.xml is shared via docker volume and contains context definition : 

<Context docBase="/usr/tomcat/custom-webapp/app.war" reloadable="true" />

To my mind all things are right but when i try to start tomcat container, an FileNotFindException occurs telling that /usr/tomcat/custom-webapp/app.war is not found by tomcat (/usr/tomcat/custom-webapp is also a shared volume containing a app.war file).

my docker-compose file :

version : '3'
    tomcat:
        image: tomcat:9.0.27-jdk8-openjdk
        hostname: tomcat
        restart: on-failure
        ports:
        - 10000:8080
        volumes:
        - ./data/logs/:/usr/local/tomcat/logs/
        - ./data/context-ROOT.xml:/usr/local/tomcat/conf/Catalina/localhost/ROOT.xml
        - ./data/custom-webapp:/usr/local/tomcat/custom-webapp

I'm sure that the app.war file is mounted in the container. I can see it when I enter in the container or when i do docker-compose run tomcat ls /usr/local/tomcat/custom-webapp. But on startup, tomcat seems to not find the file. That is strange for me.

Has anyone know why tomcat container cannot access to the app.war file ?

below error stacktrace.

> tomcat_1    | 25-Oct-2019 14:43:55.287 INFO [main]
> org.apache.catalina.startup.HostConfig.deployDescriptor Deploying
> deployment descriptor
> [/usr/local/tomcat/conf/Catalina/localhost/ROOT.xml] tomcat_1    |
> 25-Oct-2019 14:43:55.307 WARNING [main]
> org.apache.catalina.startup.HostConfig.deployDescriptor Deployment of
> deployment descriptor
> [/usr/local/tomcat/conf/Catalina/localhost/ROOT.xml] with an external
> docBase means the directory [/usr/local/tomcat/webapps/ROOT] in the
> appBase will be ignored tomcat_1    | 25-Oct-2019 14:43:55.331 SEVERE
> [main] org.apache.catalina.startup.ContextConfig.beforeStart Exception
> fixing docBase for context [] tomcat_1    |  
> java.io.FileNotFoundException: /usr/tomcat/custom-webapp/mytower.war
> (No such file or directory) tomcat_1    |           at
> java.io.FileInputStream.open0(Native Method) tomcat_1    |          
> at java.io.FileInputStream.open(FileInputStream.java:195) tomcat_1   
> |           at
> java.io.FileInputStream.<init>(FileInputStream.java:138) tomcat_1    |
> at java.io.FileInputStream.<init>(FileInputStream.java:93) tomcat_1   
> |           at
> sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:90)
> tomcat_1    |           at
> sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:188)
> tomcat_1    |           at
> org.apache.catalina.startup.ExpandWar.expand(ExpandWar.java:90)
> tomcat_1    |           at
> org.apache.catalina.startup.ContextConfig.fixDocBase(ContextConfig.java:615)
> tomcat_1    |           at
> org.apache.catalina.startup.ContextConfig.beforeStart(ContextConfig.java:747)
> tomcat_1    |           at
> org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:303)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:182)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
> tomcat_1    |           at
> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:631)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1831)
> tomcat_1    |           at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> tomcat_1    |           at
> java.util.concurrent.FutureTask.run(FutureTask.java:266) tomcat_1    |
> at
> org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
> tomcat_1    |           at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:526)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:425)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig.start(HostConfig.java:1576)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:309)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:936)
> tomcat_1    |           at
> org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
> tomcat_1    |           at
> java.util.concurrent.FutureTask.run(FutureTask.java:266) tomcat_1    |
> at
> org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
> tomcat_1    |           at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
> tomcat_1    |           at
> org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
> tomcat_1    |           at
> org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
> tomcat_1    |           at
> org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
> tomcat_1    |           at
> org.apache.catalina.startup.Catalina.start(Catalina.java:633) tomcat_1
> |           at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method) tomcat_1    |           at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> tomcat_1    |           at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> tomcat_1    |           at
> java.lang.reflect.Method.invoke(Method.java:498) tomcat_1    |        
> at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:344)
> tomcat_1    |           at
> org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:475)
> tomcat_1    | 25-Oct-2019 14:43:56.054 SEVERE [main]
> org.apache.catalina.startup.HostConfig.deployDescriptor Error
> deploying deployment descriptor
> [/usr/local/tomcat/conf/Catalina/localhost/ROOT.xml] tomcat_1    |  
> java.lang.IllegalStateException: Error starting child tomcat_1    |   
> at
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
> tomcat_1    |           at
> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:631)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1831)
> tomcat_1    |           at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> tomcat_1    |           at
> java.util.concurrent.FutureTask.run(FutureTask.java:266) tomcat_1    |
> at
> org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
> tomcat_1    |           at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:526)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:425)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig.start(HostConfig.java:1576)
> tomcat_1    |           at
> org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:309)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:936)
> tomcat_1    |           at
> org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
> tomcat_1    |           at
> java.util.concurrent.FutureTask.run(FutureTask.java:266) tomcat_1    |
> at
> org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
> tomcat_1    |           at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
> tomcat_1    |           at
> org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
> tomcat_1    |           at
> org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
> tomcat_1    |           at
> org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
> tomcat_1    |           at
> org.apache.catalina.startup.Catalina.start(Catalina.java:633) tomcat_1
> |           at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method) tomcat_1    |           at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> tomcat_1    |           at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> tomcat_1    |           at
> java.lang.reflect.Method.invoke(Method.java:498) tomcat_1    |        
> at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:344)
> tomcat_1    |           at
> org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:475)
> tomcat_1    |   Caused by: org.apache.catalina.LifecycleException:
> Failed to start component
> [org.apache.catalina.webresources.StandardRoot@2a556333] tomcat_1    |
> at
> org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
> tomcat_1    |           at
> org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4800)
> tomcat_1    |           at
> org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4935)
> tomcat_1    |           at
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
> tomcat_1    |           at
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
> tomcat_1    |           ... 37 more tomcat_1    |   Caused by:
> java.lang.IllegalArgumentException: The main resource set specified
> [/usr/tomcat/custom-webapp/mytower.war] is not valid tomcat_1    |    
> at
> org.apache.catalina.webresources.StandardRoot.createMainResourceSet(StandardRoot.java:752)
> tomcat_1    |           at
> org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:709)
> tomcat_1    |           at org.apache
soung
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1 Answers1

0

You are not using volumes but rather bind-mounts. That means that local host path is mounted into container and content of ./data/custom-webapp will replace content of /usr/local/tomcat/custom-webapp directory.

Therfore your ROOT.xml should look like:

<Context docBase="/usr/local/tomcat/custom-webapp/app.war" reloadable="true" />

and app.war should be in ./data/custom-webapp directory on your host.

Michał Krzywański
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  • thank you michalk. Actualy the app.war file is in the ./data/custom-webapp directory in my host. And i'm sur it is mounted in the container. but on tomcat startup the file seems to not be found. Could it be it's because the file is mounted after tomcat startup ? – soung Oct 26 '19 at 10:56
  • 1
    @soung Have you changed /usr/tomcat/custom-webapp/app.war to /usr/local/tomcat/custom-webapp/app.war in your XML file and tried it? – Michał Krzywański Oct 26 '19 at 11:10