Am 30.03.2015 haben wir im Büro 2.0 in Berlin einen Workshop mit OpenNMS durchgeführt. Die Zielgruppe waren NeueinsteigerInnen und alle die Interesse an Monitoring mit freier Software haben. Es wurden Installationszenarien, das Provisioning und beispielhaft diverse Monitore für Anwendungen und Dienste eingerichtet.
Die Slides sind unter einer freien CC-BY 3.0 lizenziert und stehen auf GitHub zur Verfügung.
Für diejenigen, die kurzentschlossen sind – hier eine letzte Erinnerung für einen kostenfreien Kickstart workshop zu OpenNMS. Die Registrierung und Anfahrt findet ihr unter:
I spent some time with preparing the OUCE 2015 and we use the free an open-source software frab as conference management system. I do most of my server automation with Chef and my playground is running with Vagrant. For this reason I decided to spend some time an built a Vagrant / Chef environment and contributed it back to the frab project. This guys do a really good job and IMHO it is the best free conference management system you can get. If you want to play with it feel free and give it a try and contribute.
Continue readingI spend a lot of time in the OpenNMS project and I love to work in free software and the workflows around it. We moved with our project from SourceForge to GitHub a few years ago and I think it was the right decision. There are now some established workflows in this ecosystem and they tear down borders between different open-source projects and here is an example of it.
I develop with IntelliJ IDEA and spend currently some time working in documentation of OpenNMS. We have migrated from Docbook XML format to AsciiDoc and started with the help of a few brave community volunteers a new documentation environment. I’ve found a plugin for IDEA which renders AsciiDoc and gave it a try to have a better workflow working on documentation and navigating through source code in just one program.
Continue readingTo help the OpenNMS project I spent a year together with Alexander Finger and Klaus Thielking-Riechert writing an OpenNMS book. We started with a development version of for 1.8 and tried to find a mixture between consistent slow changing and new concepts in 1.8. It was kind a complicated thing and from my point of view not perfectly done. Nevertheless I’ve thought about something like: “It’s about time writing a second edition covering the topics in coming 1.14?” The problem I’ve with books, it doesn’t allow contribution and hasn’t a really long life cycle. So I’ve decided instead of spending a year again writing a book, I want something which is more helpful to the project itself.
Continue readingWe are right in the middle of our 5th season of the year – DevJam. It is always a lot of fun spending one week with people from all over the world on the campus of the University of Minnesota. I’ve put on my personal agenda for this week, spending time with the folks working on the way how we want to document our project. I try also to gather the project ideas and where they contribute the code to the project. Currently i try to get some updates from the progress through the opennms.eu page. We have the following topics on the list:
Continue readingWe have finished our 6th OpenNMS User Conference Europe. It was the first time we made a conference outside of Germany. We started with the first conference in 2009 when I worked at NETHINKS and begun with OpenNMS professional services. For the 3rd and 4th conference we decided to move the venue closer to the people organizing the conference and the IT center in Fulda was a really good place. In 2013 NETHINKS and the OpenNMS Foundation Europe worked together to move the organization of the conference to the community at the University of Applied Science in Fulda.
Continue readingIf you have OpenNMS with RRDtool running, you can improve the whole rendering a little bit just by replacing the command.prefix in the following files:
snmp-graph.propertiessnmp-adhoc-graph.propertiesresponse-graph.propertiesresponse-adhoc-graph.propertiescommand.prefix=/usr/bin/rrdtool graph - --imgformat PNG --font DEFAULT:7 --font TITLE:10 --start {startTime} --end {endTime} -E --width=1000 --height=180
I don’t like the stamp size graphs in OpenNMS, so I changed it for all. It could be problematic if you have grouped graph report (KSC report). So if you have trouble, you can just remove the –width and –height parameter. The command will also overwrite the width and height for all graphs, so they have all the same size. You have to be careful if you have KSC reports with multiple columns. If you have RRDtool running, you can improve the graphs with anti-aliasing using a few additional parameters:
Continue readingsudo -s
apt-get install openssh-server
apt-get install vim tcpdump git-core htop joe nmap iftop
apt-get install snmp snmpd snmp-mibs-downloader
apt-get install maven2
wget http://files.opennms-edu.net/jdk-6u41-linux-x64.bin
chmod +x jdk-6u41-linux-x64.bin
./jdk-6u41-linux-x64.bin
mv jdk1.6.0_41 /opt
update-alternatives --install "/usr/bin/java" "java" "/opt/jdk1.6.0_41/bin/java" 1
update-alternatives --install "/usr/bin/javac" "javac" "/opt/jdk1.6.0_41/bin/javac" 1
update-alternatives --install "/usr/bin/javaws" "javaws" "/opt/jdk1.6.0_41/bin/javaws" 1
update-alternatives --install "/usr/bin/jar" "jar" "/opt/jdk1.6.0_41/bin/jar" 1
update-alternatives --install "/usr/lib/mozilla/plugins/mozilla-javaplugin.so" "mozilla-javaplugin.so" "/opt/jdk1.6.0_41/jre/lib/amd64/libnpjp2.so" 1
update-alternatives --config java
apt-get remove unity-lens-shopping
System Settings -> Privacy Include Online Search results OFF / Record Activity OFF
update-alternatives --config java
vi /etc/apt/sources.list.d/opennms.list
deb http://debian.opennms.org stable main
deb-src http://debian.opennms.org stable main
wget -O - http://debian.opennms.org/OPENNMS-GPG-KEY | sudo apt-key add -
apt-get update
apt-get install opennms
echo "export JAVA_HOME=\"/opt/jdk1.6.0_41\"" >> /etc/profile
echo "export OPENNMS_HOME=\"/usr/share/opennms\"" >> /etc/profile
source /etc/profile
/usr/share/opennms/bin/runjava -s
vi /etc/postgresql/9.1/main/pg_hba.conf
file:/etc/postgresql/9.1/main/pg_hba.conf
host all all 127.0.0.1/32 trust
service postgresql restart
/usr/share/opennms/bin/install -dis
echo JAVA_HEAP_SIZE=768 >> /etc/opennms/opennms.conf
echo START_TIMEOUT=0 >> /etc/opennms/opennms.conf
service opennms start
apt-get install libwww-perl libxml-twig-perl
cd ~
wget http://files.opennms-edu.net/iReport-3.7.6.tar.gz
tar xzf iReport-3.7.6.tar.gz
mv iReport-3.7.6 /opt
chown opennms:opennms /opt/iReport-3.7.6 -R
apt-get install --no-install-recommends gnome-panel
gnome-desktop-item-edit /usr/share/applications/ --create-new
Name: iReport 3.7.6
Binary: /opt/iReport-3.7.6/bin/ireport
Icon: gnome-power-statistics.png
Comment: Jasper Reports-Report Designer
cd ~/Pictures
wget http://files.opennms-edu.net/wallpaper/free-software-ulf.jpg
cd /usr/share/backgrounds
wget http://files.opennms-edu.net/warty-final-ubuntu-ouce.png
sudo -i
xhost +SI:localuser:lightdm
su lightdm -s /bin/bash
gsettings set com.canonical.unity-greeter draw-user-backgrounds 'false'
gsettings set com.canonical.unity-greeter draw-grid 'false'
gsettings set com.canonical.unity-greeter background '/usr/share/backgrounds/warty-final-ubuntu-ouce.png'
sudo apt-get install rrdtool
sudo -s
cd /root
wget http://files.opennms-edu.net/groovy-binary-2.1.1.zip
mv groovy-2.1.1 /opt
echo "export GROOVY_HOME=\"/opt/groovy-2.1.1\"" >> /etc/profile
source /etc/profile
ln -s /opt/groovy-2.1.1/bin/groovy /usr/local/bin/groovy
ln -s /opt/groovy-2.1.1/bin/groovyc /usr/local/bin/groovyc
ln -s /opt/groovy-2.1.1/bin/groovyConsole /usr/local/bin/groovyConsole
ln -s /opt/groovy-2.1.1/bin/groovysh /usr/local/bin/groovysh
wget http://files.opennms-edu.net/gradle-1.4-all.zip
unzip gradle-1.4-all.zip
mv gradle-1.4 /opt
echo "export GRADLE_HOME=\"/opt/gradle-1.4\"" >> /etc/profile
ln -s /opt/gradle-1.4/bin/gradle /usr/local/bin/gradle
cd ~
git clone http://www.github.com/m-schneider/ouce2013
cd ouce2013/groovy
. ./setenv.sh
cd ./non-gradle
./change-rules.sh
Output should look like:
Continue readingIn OpenNMS wurde seit der Version 1.6.3 der SNMP Monitor erweitert und die neuen Features sind Release-Notes Beschreibung vielleicht ein wenig untergegangen. Die erweiterten Funktionen haben sich für mich als hilfreich erwiesen und sind mir einen Blog-Eintrag wert. Die OpenNMS Wiki Seite sind an der Stelle sehr gut dokumentiert und aktualisiert worden. Grob zusammengefaßt sind folgende Funktionen erweitert worden:
Im folgenden wird die Einrichtung am Beispiel eines Monitors für ISDN B-Kanäle gezeigt. Häufig werden Notfall-Dialup Verbindungen eingerichtet, wenn Internet Verbindungen oder VPNs nicht mehr möglich sind. Mit diesem Monitor werden alle B-Kanäle überwacht, sobald eine Einwahl stattfindet und ein B-Kanal verwendet wird, fällt der Monitor herunter und informiert den Administrator, dass ein Benutzer oder Standort auf ISDN-Backup läuft. Sollte eigentlich für alle Geräte funktionieren, welche die ISDN-MIB unterstützen. Der abgefragte Tabelle ist übrigens isdnBearerOperStatus. Zuerst wird dazu in der capsd-configuration.xml ein Dienst eingerichtet:
<protocol-plugin protocol="All-ISDN-Backup" class-name="org.opennms.netmgt.capsd.plugins.LoopPlugin" scan="on">
<property key="ip-match" value="{ip-adresse-isdn-backup-router}" />
<property key="is-supported" value="true" />
</protocol-plugin>
Der Monitor im pollerd sieht dann wie folgt aus:
<service name="All-ISDN-Backup" interval="300000" user-defined="false" status="on">
<parameter key="retry" value="6" />
<parameter key="timeout" value="4950" />
<parameter key="port" value="161" />
<parameter key="oid" value=".1.3.6.1.2.1.10.20.1.2.1.1.2" />
<parameter key="walk" value="true" />
<parameter key="operator" value="=" />
<parameter key="operand" value="1" />
<parameter key="match-all" value="true" />
<parameter key="reason-template"
value="One or more backup ISDN channels are active. \
The state should be idle(${operand}) the observed value is ${observedValue}. \
Syntax: idle(1), connecting(2), connected(3), active(4) " />
</service>
...
<monitor service="All-ISDN-Backup" class-name="org.opennms.netmgt.poller.monitors.SnmpMonitor"/>
Anstatt key="match-all value="true" kann auch der Wert value="count" gesetzt werden, zählt der Monitor die Abweichungen und man kann auf Schwellen prüfen.
Die Schwellen werden mit zusätzlichen Parametern <parameter key="minimum" value="3"> sowie <parameter key="maximum" value="10" /> gesetzt werden.
gl&hf