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2.4.2. Running the JBoss ON Server as a Service

The JBoss ON server, storage node and agent can be managed and run as a SysV style init service on Red Hat Enterprise Linux using the following example:
  1. Create a initalization scipt /etc/init.d/jboss-on: 
    #!/bin/sh
#
# Example Red Hat JBoss Operations Network init script
#
# chkconfig: - 95 20
# description: Red Hat JBoss Operations Network rhqctl services
# processname: standalone.sh
#
#
# This is an example script that can be used with a SysV style 
# init service which starts a JBoss ON server, storage node, and 
# agent using the rhqctl script provided by the JBoss ON server 
# installation.

prog="`basename "$0"`"

# If available, the following files will be sourced, in order, for 
# configuration. This means that if the same value is defined in a later
# file, it will override the one specified in an earlier one:
#
#   /etc/jboss-on.conf
#   /etc/jboss-on/${prog}.conf
#
# The following environment variables can be defined:
# 
#   RHQ_HOME -- Defaults to /opt/jboss/jboss-on
#   RHQ_SERVER_HOME -- Defaults to RHQ_HOME/jon-server-*
#   RHQ_AGENT_HOME -- Defaults to RHQ_HOME/rhq-agent
#   RHQ_JAVA_HOME -- Defaults to /usr
#   RHQ_USER -- Defaults to jonadmin
#

# If available, source environment variables for the service
# Global defaults/settings
[ -r "/etc/jboss-on.conf" ] && . "/etc/jboss-on.conf"
# Settings specific to this service
[ -r "/etc/jboss-on/${prog}.conf" ] && . "/etc/jboss-on/${prog}.conf"

# If not yet set, use some reasonable defaults:
[ -z "${RHQ_HOME}" ] && RHQ_HOME='/opt/jboss/jboss-on'
[ -z "${RHQ_SERVER_HOME}" ] && RHQ_SERVER_HOME="`eval echo "${RHQ_HOME}/jon-server-"*`"
[ -z "${RHQ_AGENT_HOME}" ] && RHQ_AGENT_HOME="${RHQ_HOME}"'/rhq-agent'
[ -z "${RHQ_JAVA_HOME}" ] && RHQ_JAVA_HOME='/usr'
[ -z "${RHQ_USER}" ] && RHQ_USER=jonadmin

# We have to export these variables so that they are available to child
# processes.
export RHQ_SERVER_HOME
export RHQ_AGENT_HOME
export RHQ_JAVA_HOME


# This is a convenient function that invokes rhqctl
rhqctl() {
    RHQCTL_SCRIPT="${RHQ_SERVER_HOME}/bin/rhqctl"
    [ ! -x "${RHQCTL_SCRIPT}" ] && {
        echo >&2 "${RHQCTL_SCRIPT}"' was not found or is not executable.'
        exit 2
    }
    if [ -n "${RHQ_USER}" -a "$(whoami)" != "${RHQ_USER}" ]; then
        CMD="su -m ${RHQ_USER} -c '\"${RHQCTL_SCRIPT}\" $@'"
    else
        CMD="\"${RHQCTL_SCRIPT}\" $@"
    fi
    eval ${CMD}
}

# We invoke rhqctl differently if start or stop is used so we need this
# case statement to determine what should happen.
case "$1" in
  start)
    # Because rhqctl is so chatty/verbose we redirect standard output to
    # null so we do not see it during system start and stop.
    # Additionally, we invoke it in the background as it can block for 
    # some time during start.
    rhqctl "$@" >/dev/null &
    ;;
  stop)
    # Because rhqctl is so chatty/verbose we redirect standard output to
    # null so we do not see it during system start and stop.
    rhqctl "$@" >/dev/null
    ;;
  *)
    # Assuming we are not starting or stopping, we will display complete
    # output.
    rhqctl "$@"
    ;;
esac
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  2. Change the permissions on the file so it can be executed: 
    chmod +x /etc/init.d/jboss-on
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  3. Add the initalization script to chkconfig: 
    sudo chkconfig --add /etc/init.d/jboss-on
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  4. To indicate that you intend for the script to run system startup and stop during shutdown: 
    sudo chkconfig jboss-on on
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  5. To override the default values for RHQ_HOME, RHQ_SERVER_HOME, RHQ_AGENT_HOME, RHQ_JAVA_HOME and RHQ_USER, create the service configuration file /etc/jboss-on.conf or /etc/jboss-on/<SERVICE NAME>.conf with your specific values: 
    RHQ_HOME=/usr/share/jboss-on
RHQ_USER=jbosson
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