docker-sigterm

#!/bin/bash

# SIGTERM-handler
term_handler() {
  ${TOMCAT_DIR}/bin/shutdown.sh
  exit 143; # 128 + 15 -- SIGTERM
}

# setup handlers
# on callback, kill the last background process, which is `tail -f /dev/null` and execute the specified handler
trap 'kill ${!}; term_handler' SIGTERM

# run application
${TOMCAT_DIR}/bin/startup.sh
ln -sf /dev/stdout ${TOMCAT_DIR}/catalina.out

# wait forever
while true
do
  tail -f /dev/null & wait ${!}
done