change-log-level is a script to change the logging level of the WildFly server inside an application image running on any Kubernetes cluster.

change-log-level

#!/bin/bash

############################################################################################
#                                                                                          #
# change-log-level is a script to change the logging level of the WildFly server           #
# inside an application image running on any Kubernetes cluster.                           #
#                                                                                          #
# This script can be used with application images created either from WildFly S2I images   #
# or Bootable Jar                                                                          #
#                                                                                          #
############################################################################################
help() {
  script_name=${0##*/}
  echo "
$script_name is a script to change the logging level of the WildFly server inside an application image running on any Kubernetes cluster.
Usage:
  $script_name <pod> <logging-level>
Where the parameters are:
  * <pod> - Name of the pod running the application image
  * <logging-level> - The logging level to set (can be one of ALL, FINEST, FINER, TRACE, DEBUG, FINE, CONFIG, INFO
    WARN, WARNING, ERROR, SEVERE, FATAL, OFF)  
"
  exit 1
}

POD=$1
LEVEL=$2

if [ "x$POD" == "x" ]; then
  help
fi

if [ "x$LEVEL" == "x" ]; then
  help
fi

echo "Change logging level to ${LEVEL} for WildFly server in ${POD}"

WILDFLY_COMMANDS="/subsystem=logging/console-handler=CONSOLE:write-attribute\(name=level,value=$LEVEL\),/subsystem=logging/root-logger=ROOT:write-attribute\(name=level,value=$LEVEL\)"

kubectl exec ${POD} -- sh -c "[ -e /opt/jboss/container/wildfly-bootable-jar/install-dir ] && JBOSS_HOME=\$( cat /opt/jboss/container/wildfly-bootable-jar/install-dir ); \$JBOSS_HOME/bin/jboss-cli.sh -c --echo-command --commands=${WILDFLY_COMMANDS}"

WILDFLY_COMMANDS="/subsystem=logging/console-handler=CONSOLE:write-attribute\(name=level,value=DEBUG\),/subsystem=logging/root-logger=ROOT:write-attribute\(name=level,value=$LEVEL\)"