Exception after prewarm.sh when building docker image from lucee/lucee:5.4.4.38-light-nginx

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1

We’re evaluating whether we can use the Lucee Light image instead of the full-blown one, in an effort to reduce the number of VE vulnerabilities that those images report.

When the docker build is running, I get this:

#21 11.15 Lucee warmup completed. Shutting down.
#21 15.44 Thread[Thread-42,1,main]
#21 15.44 java.lang.NoClassDefFoundError: lucee/commons/lang/ExceptionUtil
#21 15.45       at lucee.runtime.engine.Controler$ControlerThread.run(Controler.java:118)
#21 15.45 Caused by: java.lang.ClassNotFoundException: Unable to load class 'lucee.commons.lang.ExceptionUtil' because the bundle wiring for lucee.core is no longer valid.
#21 15.45       at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1542)
#21 15.45       at org.apache.felix.framework.BundleWiringImpl.access$300(BundleWiringImpl.java:79)
#21 15.45       at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1976)
#21 15.45       at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
#21 15.45       ... 1 more
#21 16.38 2024-02-20 10:27:50.472:INFO:oejsh.ContextHandler:stopped o.e.j.s.ServletContextHandler{/,null}

The reference to prewarm there is from RUN /usr/local/tomcat/bin/prewarm.sh in the Dockerfile which we are using to try to prewarm the download/install of some extensions.

The image build finishes, and I can bring up the container and it seems fine. But I’m concerned that the Lucee-Light image is missing something here. The same build process using the full-fat image does not give this.

I googled the stuff that seems googleable, but drew a blank.

Thoughts?

2

I can check it out. but I think this is one of those things where something that is in the core is not in the loader or something like that. Checking out the image now.

3

Cheers fella.

4

Ah yeah, this is normal, It’s just the forced “shutdown” part, so yeah, the core is no longer valid as the servlet has probably shut down.

I wouldnt worry too much about it, as lucee (with the LUCEE_ENABLE_WARMUP=true var) is shutting down the servlet engine.
You an do this “raw” by doing a command like:

> LUCEE_ENABLE_WARMUP=true /usr/local/tomcat/bin/catalina.sh run

Which will start up tomcat, start up lucee, install whatever it needs then kill the tomcat process.

1 Like
5

Cheers for looking into it mate. Much appreciated.