NagiosPlugins

HOWTO pack the nagios plugins into an RPM

PageOutline

Building the RPM

• The plugins are gathered in an RPM for easy distribution over all nagios monitored hosts.
• The RPM is build on egon.

• A script can create the rpm
  • Execute as follows

cd /root/nagiosPlugins/
version=1.10
./makeRPM.sh $version

• • It will make $version rpm of the directory nagios-plugins-dedicated
  • therefore, all the executables you need to distribute, also need to be place into /root/nagiosPlugins/nagios-plugins-dedicated
  • all will be distributed to /usr/lib64/nagios/plugins/
  • Copy the file to ccq3, via ccq:

scp /root/rpmbuild/RPMS/noarch/nagios-plugins-dedicated-$version-1.noarch.rpm ccq:/root/Joris

• Here are the commands to be executed to make the rpm w/o the script
  • First a tar ball is made containing all the scripts

cd /root/nagiosPlugins
tar -cjf nagios-plugins-dedicated-A.B.tar.gz nagios-plugins-dedicated-A.B/

• • The building of the RPM happens as follows

cd /root/rpmbuild
cp ../nagiosPlugins/nagios-plugins-dedicated-A.B.tar.gz SOURCES/
rpmbuild -ba SPECS/nagios-plugins-dedicated.spec 

• • IMPORTANT: don't forget to adapt the spec file to rpm-ize the correct version A.B

Uploading the RPM to the BEgrid repo

• As a final step you have to upload the rpm to the begrid repo like this
  • the directory for uploading on ccq3:

/opt/CB5/tmp/src/begrid/cb-client/cb-client-swrep/rpm-nagios
scp ccq:/root/Joris/nagios-plugins-dedicated-A.B-1.noarch.rpm .

• • The command executed to upload to the repo:

./swrep.py --debug --mode=up --plat x86_64_sl5_5X,/sl5/sl54/updates --dir=/opt/CB5/tmp/src/begrid/cb-client/cb-client-swrep/rpm-nagios/

• Don't forget to add the correct line to the repo template file and include somewhere this rpm so that it gets installed on the machine

Links to info and tutorials

• Following links contain some information on how to build your own RPM files:
  • http://fedoraproject.org/wiki/How_to_create_an_RPM_package
  • http://tldp.org/HOWTO/RPM-HOWTO/build.html
  • http://www.rpm.org/max-rpm/s1-rpm-build-creating-spec-file.html
  • http://narrabilis.com/mybook/appendices/packages
  • http://stackoverflow.com/questions/1879734/rpm-build-error or http://spot.fedorapeople.org/Summit2008/2008-RPM-Spec-examples.pdf

Tutorial to build an rpm

• The aim of this section is to provide a minimal working example to build your own RPM
• It is a mixture of the tutorials listed in the links section. Please have a closer look there on the meaning of the section (with a %) in the file as well on the directory structure of the rpm package.
• For this example I have put the directory tree in a specific directory and added a line in .rpmmacros to point to it.

/root/rpmbuild/
cat ~/.rpmmacros 
%_topdir /root/rpmbuild/

• It should be noted that RPMs should not be built with root privileges.

• Example spec file located in the SPEC directory:

Summary: a test for helloworld
Name: testhello
License: GPL
Version: 1.1
Source: test.tar.gz
Release: 1
Group: Applications
#BuildRoot: /tmp/rpm-buildroot-%{name}-%{version}
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
BuildArch: noarch"

%description
This is a description for the testhello

%prep
echo "1." $PWD
ls -l

%setup
echo "2." $PWD
ls -l

%build
echo "3." $PWD
ls -l
gcc -o test test.c

echo "rm -rf %{buildroot}"
rm -rf %{buildroot}
echo "mkdir -p %{buildroot}%{_bindir}"
mkdir -p %{buildroot}%{_bindir}
echo "cp test.c %{buildroot}%{_bindir}/test.c"
cp test.c %{buildroot}%{_bindir}/test.c

%clean
rm -rf %{buildroot}

##or alternatively 
##make test

#echo "%{buildroot}"
#ls -l /var/tmp
#ls -l %{buildroot}
#echo %{_bindir}

%files
%defattr(-,root,root,-)
%{_bindir}/test.c

%changelog

*Thu Apr 7 2011 Joris Maes <jmmaes@cern.ch> 1.1-1
- initial package for testing

• Be careful to create a tar ball with a top directory. I.e. the test.c is put in a directory called testhello-1.1 which then tarred

tar cvf test.tar.gz testhello-1.1/

• To finally build the rpm execute the following line:

rpmbuild -ba  testhello.spec