Jenkins Recycle/Restart Script for Ubuntu

[Julian Biddle]

I have troubles where jenkins gets slower and slower, then crashes.  I will be investigating the problem, but in the interim I created a script that others might be interested in.

It is designed to perform a "safe restart" (which waits for builds to finish).

I run this every 2 hours using cron:

0 */2 * * * $HOME/bin/restartjenkins.sh >> $HOME/logs/restartjenkins.log

Here's the script:

restartjenkins.sh 

#!/bin/bash


JENKINSPROCESS=`ps -U jenkins | grep systemd`
if [[ -z $JENKINSPROCESS ]]
then
        echo "ERROR: Jenkins Process not detected!!!...Trying to start"
        # Attempt a normal start
        sudo /etc/init.d/jenkins start
        exit
fi
echo "Attempting Safe Jenkins Restart"
USER=xxxxxxxxxx
APITOKEN=xxxxxxxxxxxx
SERVER="http://localhost:8080"
CRUMB=$(curl --user $USER:$APITOKEN \
    $SERVER/crumbIssuer/api/xml?xpath=concat\(//crumbRequestField,%22:%22,//crumb\))


curl -X POST -u $USER:$APITOKEN -H "$CRUMB" "$SERVER/safeRestart"