java - Wait until tomcat finishes starting up

Question

I have a script that needs to run after tomcat has finished starting up and is ready to start deploying applications. I'm using $TOMCAT_HOME/bin/startup.sh which returns immediately. How can I wait until tomcat has finished starting up?

Answer 1

There are probably several ways to do this. The trick we use is:

#!/bin/bash

until [ "`curl --silent --show-error --connect-timeout 1 -I http://localhost:8080 | grep 'Coyote'`" != "" ];
do
  echo --- sleeping for 10 seconds
  sleep 10
done

echo Tomcat is ready!

Hope this helps!