How to build deb packaging from scratch (Ex2: OpenNebula)

First let's dissect opennebula_1.4.0-1_i386.deb binary file

Package Strucuture
># ar tv opennebula_1.4.0-1_i386.deb

Extract them
># ar xv opennebula_1.4.0-1_i386.deb
- debian-binary
- control.tar.gz (md5sums, control, postinst, postrm)
- data.tar.gz

debian.tar.gz

># mkdir opennebula
># cd opennebula
># git clone git://opennebula.org/one.git
># tar -czvf one-1.4.orig.tar.gz ./one-1.4
># tar -xzvf debian.tar.gz;
># cd ./one-1.4
># mv ../debian .
># dpkg-buildpackage -rfakeroot

Here let's take a brief look at some of control files.

control

Source: opennebula Section: utils Priority: extra Maintainer: Jaime Melis <j.melis@fdi.ucm.es> Build-Depends: debhelper (>= 7), scons, libxmlrpc-c3-dev, ruby, libsqlite3-dev, libssl-dev Standards-Version: 3.8.0 Homepage: http://opennebula.org/ Package: opennebula Architecture: any Depends: ${shlibs:Depends}, ${misc:Depends}, ruby, adduser, libsqlite3-ruby, openssh-client Description: OpenNebula controller  OpenNebula is an open source virtual infrastructure engine that enables the  dynamic deployment and re-placement of virtual machines on a pool of physical  resources.  .  ONE (OpenNebula) extends the benefits of virtualization platforms from a  single physical resource to a pool of resources, decoupling the server not  only from the physical infrastructure but also from the physical location.  .

files

opennebula_1.4-0ubuntu1_i386.deb utils extra

rules
* sdf

#!/usr/bin/make -f build: build-stamp build-stamp:     dh_testdir     scons     touch $@ install:     dh_clean     dh_installdirs     DESTDIR=debian/opennebula ./install.sh clean:     dh_testdir     dh_clean     scons -c .     rm -rf install-stamp build-stamp share/scons/lex_bison.pyc \            src/nebula/.xmlrpc_test/xmlrpc_test.* \            src/scheduler/.xmlrpc_test/xmlrpc_test.* \            .xmlrpc_test .sconsign.dblite binary-arch: install     dh_testdir -a     dh_testroot -a     dh_strip -a     dh_fixperms -a     dh_installdeb -a     dh_shlibdeps -a     dh_gencontrol -a     dh_md5sums -a     dh_builddeb -a binary-indep: binary: binary-arch

opennebula.postinst

#!/bin/sh set -e if [ "$1" = "configure" ] then         if ! getent passwd oneadmin > /dev/null 2>&1;         then                 ONEHOME=/var/lib/one                 adduser --system --home $ONEHOME --shell /bin/bash oneadmin         else                 ONEHOME=`getent passwd oneadmin | cut -f6 -d:`         fi         if ! [ -d "$ONEHOME/.ssh" ]         then                 mkdir "$ONEHOME/.ssh"                 chown oneadmin "$ONEHOME/.ssh"                 chmod 755 "$ONEHOME/.ssh"         fi         if ! [ -f "$ONEHOME/.ssh/authorized_keys" ]         then                 touch "$ONEHOME/.ssh/authorized_keys"                 chown oneadmin "$ONEHOME/.ssh/authorized_keys"                 chmod 600 "$ONEHOME/.ssh/authorized_keys"         fi         if ! [ -f "$ONEHOME/.ssh/id_rsa" ]         then                 su oneadmin -c "ssh-keygen -N '' -t rsa -f $ONEHOME/.ssh/id_rsa"         fi         chown oneadmin /var/lib/one         chown oneadmin /var/log/one     chown oneadmin /var/run/one fi #DEBHELPER#

opennebula.postrm

#!/bin/sh set -e if [ "$1" = "purge" ] then         if getent passwd oneadmin > /dev/null 2>&1         then                 deluser oneadmin         fi         rm -rf /var/lib/one         rm -rf /var/log/one         rm -rf /var/run/one fi #DEBHELPER#

opennebula.substvars

shlibs:Depends=libc6 (>= 2.3.6-6~), libc6 (>= 2.4), libgcc1 (>= 1:4.1.1), libsqlite3-0 (>= 3.6.22), libssl0.9.8 (>= 0.9.8k-1), libstdc++6 (>= 4.1.1), libxmlrpc-c3, libxmlrpc-core-c3 misc:Depends=

References
1. Debian Binary Package HOWTO, http://tldp.org/HOWTO/html_single/Debian-Binary-Package-Building-HOWTO/
2.