Bamboo start-up scripts should utilize CATALINA_PID checking

Problem Definition

Currently the Bamboo start-up scripts aren't defensive against having multiple Bamboo processes started from the same install directory. This can cause file locking and resourcing issues.

Suggested Solution

Other products, such as Confluence create a catalina PID file which is checked upon start-up. If the PID exists and is active, a second process won't be started and an error is reported.

Workaround

Add CATALINA_PID checking below the line"cat "${PRGDIR}"/bamboobanner.txt" in $BAMBOO_INSTALL/bin/setenv.sh. Example:

PRGDIR=`dirname "$0"`
cat "${PRGDIR}"/bamboobanner.txt

# set the location of the pid file
if [ -z "$CATALINA_PID" ] ; then
    if [ -n "$CATALINA_BASE" ] ; then
        CATALINA_PID="$CATALINA_BASE"/work/catalina.pid
    elif [ -n "$CATALINA_HOME" ] ; then
        CATALINA_PID="$CATALINA_HOME"/work/catalina.pid
    fi
fi
export CATALINA_PID