BFRC Tiny Core Broker - Helper and init.d Script Configuration
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Description

This task is relevant to Tinycore Appliances running the BFRC broker.

This will do the following:

- Create a functioning start/stop script: /etc/init.d/trcbroker
     - manages a tmp lock file so that the monitoring/helper script will not interfere with maintenance
- Creates a monitoring/helper script: /home/tc/broker/broker_helper.sh
     - reboots the broker if the trc_icb process stops unexpectedly
     - sends messages to all active terminals with a reboot notice
     - sends email alerts of the trc_icb process failure
- Configures a cronjob for the monitoring script
- Configures bootlocal, filetool, onboot, and extensions

 


Property Details

ID26989
StatusProduction - Fully Tested and Ready for Production
TitleBFRC Tiny Core Broker - Helper and init.d Script Configuration
SourceInternal
Source Release Date10/4/2022 12:00:00 AM
KeywordsTiny Core Linux, BigFix Remote Control Broker
Is TaskTrue
Added by on 12/12/2022 8:10:05 AM
Last Modified by on 12/12/2022 8:10:05 AM
Counters 213 Views / 1 Download
User Rating 1 star 2 star 3 star 4 star 5 star * Average over 0 ratings. ** Log In or Register to add your rating.

Relevance

Used in 8 fixlets   * Results in a true/false
Show indented relevance
name of operating system contains "TinyCore"
Used in 1 fixlet   * Results in a true/false
Show indented relevance
exists (names of processes whose (name of it = "trc_icb"))
Used in 1 fixlet   * Results in a true/false
Show indented relevance
not exists file "/home/tc/broker/broker_helper.sh"

Actions

Action 1 (default)

Action Link Click here to deploy this action.
Script Type BigFix Action Script
action parameter query "EmailAddresses" with description "Enter the email addresses that will receive alert notifications.  If multiple addresses are entered, separate each address by a single space." with default value "No"

//prefetch block for sendEmail config files

//create helper log file and add write permissions

if {not exists file "/var/log/trc_icb_helper.log"}

wait touch /var/log/trc_icb_helper.log
wait chmod 660 /var/log/trc_icb_helper.log

endif

//Create the init.d script
createfile until endofscript1
#!/bin/sh

######################################################


# trc_icb: Starts/stops/restarts the BigFix Remote Control Broker
# Modified from the HCL TCL script for the besclient - Makes use of the bigFixMenuLibrary for text colors
# chkconfig: 2345 99 99
# description: Starts and stops the BigFix Remote Control Broker daemon
# processname: trc_icb
#jules.miller@va.gov

. /usr/bin/bigFixMenuLibrary

prog=trc_icb
LOCK=/tmp/trc_icb.lock

test -x /opt/bigfix/trc/broker/$prog || exit 0

start() {{
    export XAUTHORITY=/root/.Xauthority
    export DISPLAY=:0

    config=/home/tc/broker/trc_broker.properties
    if [ ! -f $config ]; then
        /bin/echo "$RED Missing config file $config."
        /bin/echo
        return 1
    fi
    pid=`pidof $prog`
    if [ -z "$pid" ]; then
        sudo start-stop-daemon --start --exec /opt/bigfix/trc/broker/$prog --startas /opt/bigfix/trc/broker/$prog -- -s /home/tc/broker /home/tc/broker/trc_broker.properties $HOSTNAME /opt/bigfix/trc/broker >/dev/null 2>&1
        ret=$?
        if [ $ret -eq 0 ]; then
            pid=`pidof $prog`
            /bin/echo -n "Successfully started the BFRC$YELLOW $prog$WHITE"
#Remove lock file on start            
            sudo rm -f $LOCK
            if [ ! -f $LOCK ]; then
                /bin/echo -e "\nLock file removed$GREEN. Helper script will resume functionality."
            fi
        else
            /bin/echo -n "$RED Failed to start the BFRC$YELLOW $prog$WHITE"
            exit $ret
        fi
    else
        /bin/echo -n "The BFRC$YELLOW $prog$WHITE is already running (pid $pid)"
    fi
    /bin/echo
    return $ret
}

stop() {{
    pid=`pidof $prog`
    if [ -z "$pid" ]; then
        /bin/echo -n "The BFRC$YELLOW $prog$WHITE is not running"
    else
        sudo start-stop-daemon --stop --exec /opt/bigfix/trc/broker/$prog >/dev/null 2>&1
        ret=$?
        if [ $ret -eq 0 ]; then
            isRunning=true
            while [ "$isRunning" == "true" ]; do
                sleep 1
                pid=`pidof $prog`
                if [ -z "$pid" ]; then
                    isRunning=false
                fi
            done
#Create a lock file for broker maintenance. Helper script will not reboot the broker while the lockfile exists
#using /etc/init.d/trcbroker start or rebooting the broker will remove the lock file    
        sudo touch $LOCK
        /bin/echo -n "Successfully stopped the BFRC$YELLOW $prog$WHITE"
        if [ -f $LOCK ]; then
            /bin/echo -e "\nLock file created$GREEN. Helper script will not interfere with maintenance."
        fi
        else
            /bin/echo -n "$RED Failed to stop the BFRC$YELLOW $prog$WHITE"
            exit $ret
        fi
    fi
    /bin/echo
    return $ret
}

restart() {{
    stop
    start
}

status() {{
    pid=`pidof $prog`
    if [ -z "$pid" ]; then
        /bin/echo "The BFRC$YELLOW $prog$WHITE is not running"
    else
        /bin/echo "The BFRC$YELLOW $prog$WHITE is running: (pid $pid)"
    fi
}

echo $WHITE
case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    restart)
        restart
        ;;
    status)
        status
        ;;
    *)
        /bin/echo "Usage:$gYELLOW trcbroker$WHITE {{start|stop|status|restart}"
        ;;
esac
return=$?
echo $NORMAL
exit $return

endofscript1

delete /etc/init.d/trcbroker
move __createfile /etc/init.d/trcbroker
wait chmod 750 /etc/init.d/trcbroker

//Create the monitoring script
createfile until endofscript2
#!/bin/sh

# BigFix Remote Control - Internet Connection Broker helper script
# Run as a cronjob to automatically restart the broker if it is not running
#jules.miller@va.gov

if [ -z "$1" ]; then
    echo "This script should not be run manually. Ensure it is running as a job to automatically restart the broker when it has stopped unexpectedly."
    exit 1
fi

LOGFILE=/var/log/trc_icb_helper.log

prog=trc_icb
LOCK=/tmp/trc_icb.lock

#Only run if lock file is not present (lock file will only be created if the broker was stopped with the init.d script)

if [ ! -f $LOCK ]; then

    pid=`pidof $prog`
    if [ -z "$pid" ]; then
        touch $LOGFILE
        
#Send message to any logged in user before the reboot        

        TTY=$(w | awk '{{print $2 }' | grep -v up | grep -v TTY)
        for T in $TTY
        do
            echo "$(date) - BigFix Remote Control - Broker appears to have stopped unexpectedly, rebooting in 60 seconds..." > /dev/${{T}
        done
        
        if [ ! -z "$TTY" ]; then
            sleep 60
        fi
        
#Send email alerts

        sendEmail -f $HOSTNAME@BigFixAlerts.INSERT_DOMAIN_HERE -t {(parameter "EmailAddresses" of action as string as lowercase)} -u "Alert: BFRC Broker Rebooted - $HOSTNAME" -m "INSERT_MESSAGE_HERE" -s smtp.INSERT_DOMAIN_HERE:25
        
#Reboot the box    
        echo "$(date) - BigFix Remote Control - Broker appears to have stopped unexpectedly, rebooting now." >> $LOGFILE
        sudo reboot >> $LOGFILE 2>&1
        exit 0
    fi

fi

endofscript2

delete /home/tc/broker/broker_helper.sh
move __createfile /home/tc/broker/broker_helper.sh
wait chmod 750 /home/tc/broker/broker_helper.sh

//create file to use for crontab

if {not exists file "/var/spool/cron/crontabs/root"}

delete __appendfile
appendfile */5 * * * * /bin/sh /home/tc/broker/broker_helper.sh 1

if {exists file "/home/tc/newcrontab"}
delete "/home/tc/newcrontab"
endif

continue if {not exists file "/home/tc/newcrontab"}

move __appendfile /home/tc/newcrontab

continue if {exists file "/home/tc/newcrontab"}

endif

//create script to add cronjob to crontab, add /var/spool/cron/crontabs directory to filetool.lst, add starting the cron service to bootlocal, and backup

delete __appendfile
appendfile #!/bin/sh

if {exists file "/var/spool/cron/crontabs/root"}
appendfile echo "*/5 * * * * /bin/sh /home/tc/broker/broker_helper.sh 1" >> "/var/spool/cron/crontabs/root"
else
appendfile sudo crontab /home/tc/newcrontab
endif

if {not exists lines whose (it contains "var/spool/cron/crontabs/") of file "/opt/.filetool.lst"}
appendfile echo "var/spool/cron/crontabs/" >> /opt/.filetool.lst
endif

if {not exists lines whose (it contains "/sbin/syslogd") of file "/opt/bootlocal.sh"}
appendfile echo "/sbin/syslogd" >> /opt/bootlocal.sh
endif

if {not exists lines whose (it contains "etc/init.d/trcbroker") of file "/opt/.filetool.lst"}
appendfile echo "etc/init.d/trcbroker" >> /opt/.filetool.lst
endif

if {not exists lines whose (it contains "/etc/init.d/services/crond start") of file "/opt/bootlocal.sh"}
appendfile echo "/etc/init.d/services/crond start" >> /opt/bootlocal.sh
endif

//This requires the sendEmail files to be cached
if {not exists file "/mnt/sda1/tce/optional/sendEmail.tcz"}
appendfile mv -f {(concatenations ("\ ") of substrings separated by " " of it) of (pathname of folder "__Download" of client folder of current site & "/sendEmail.tcz*")} /mnt/sda1/tce/optional/
appendfile mv -f {(concatenations ("\ ") of substrings separated by " " of it) of (pathname of folder "__Download" of client folder of current site & "/perl5.tcz*")} /mnt/sda1/tce/optional/
appendfile echo "ln -s /usr/local/bin/perl /usr/bin" >> /opt/bootlocal.sh
appendfile echo "sendEmail.tcz" >> /mnt/sda1/tce/onboot.lst
endif

appendfile sudo filetool.sh -b
appendfile sudo reboot

delete /var/opt/BESClient/broker_script_config.sh
move __appendfile /var/opt/BESClient/broker_script_config.sh
wait chmod 555 /var/opt/BESClient/broker_script_config.sh
run /bin/sh /var/opt/BESClient/broker_script_config.sh
Success Criteria

This action will be considered successful when the applicability relevance evaluates to false.


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