Processing Users

Processing User Setup

Stroom / Stroom Proxy should be run under a processing user (we assume stroomuser below).

• Setup this user

/usr/sbin/adduser --system stroomuser

• You may want to allow normal accounts to sudo to this account for maintenance (visudo)

• Create a service script to start/stop on server startup (as root).

vi /etc/init.d/stroomuser

#!/bin/bash
#
# stroomuser       This shell script takes care of starting and stopping
#               the stroomuser subsystem (tomcat6, etc)
#
# chkconfig: - 86 14
# description: stroomuser is the stroomuser sub system

Stroom_USER=stroomuser

case $1 in
start)
/bin/su ${Stroom_USER} /home/${Stroom_USER}/stroom-deploy/start.sh
;;
stop)
/bin/su ${Stroom_USER} /home/${Stroom_USER}/stroom-deploy/stop.sh
;;
restart)
/bin/su ${Stroom_USER} /home/${Stroom_USER}/stroom-deploy/stop.sh
/bin/su ${Stroom_USER} /home/${Stroom_USER}/stroom-deploy/start.sh
;;
esac
exit 0

• Initialise Script

/bin/chmod +x /etc/init.d/stroomuser
/sbin/chkconfig --level 345 stroomuser on

Install Java 8

yum install java-1.8.0-openjdk.x86_64
yum install java-1.8.0-openjdk-devel.x86_64

Setup Deployment Scripts

• As the processing user unpack the stroom-deploy-X-Y-Z-bin.zip generic deployment scripts in the processing users home directory.

unzip stroom-deploy-5.0.beta1-bin.zip

• Setup env.sh to include JAVA_HOME to point to the installed directory of the JDK (this will be platform specific). vi ~/env.sh

# User specific aliases and functions
export JAVA_HOME=/usr/lib/jvm/java-1.8.0
export PATH=${JAVA_HOME}/bin:${PATH}

• Setup users profile to include the same. vi ~/.bashrc

# User specific aliases and functions
. ~/env.sh

• Check that java is installed OK

[stroomuser@node1 ~]$ . .bashrc
[stroomuser@node1 ~]$ which java
/usr/lib/jvm/java-1.8.0/bin/java

[stroomuser@node1 ~]$ which javac
/usr/lib/jvm/java-1.8.0/bin/javac

[stroomuser@node1 ~]$ java -version
openjdk version "1.8.0_65"
OpenJDK Runtime Environment (build 1.8.0_65-b17)
OpenJDK 64-Bit Server VM (build 25.65-b01, mixed mode)

• Setup auto deployment crontab script as below (crontab -e)

[stroomuser@node1 ~]$ crontab -l
# Deploy Script
0,5,10,15,20,25,30,35,40,45,50,55 * * * * /home/stroomuser/stroom-deploy/deploy.sh >> /home/stroomuser/stroom-deploy.log
59 0 * * * rm -f /home/stroomuser/stroom-deploy.log
# Clean system
0 0 * * * /home/stroomuser/stroom-deploy/clean.sh > /dev/null