XenServer is open source and freely available, but it is packaged as an appliance image which must be installed on dedicated hardware. xenserver-core repackages the core components of XenServer so they can easily be built and installed on a standard Linux distribution. Its main goals are: * to make it easy to download, modify and build XenServer components, or just learn how they work; * to help upstream distributions to include up-to-date XenServer packages; * to provide an environment for experimentation. This talk will explain the motivations behind xenserver-core and how it relates to the open-sourcing of XenServer. For developers, it will cover how to get the code, how to build it and how to contribute back to the project. For packagers, it will explain the project's development and release processes and what an upstream maintainer can expect from it.

1. xenserver-core
What it is, how it is built and how to get involved
Euan Harris
Citrix

2. What is xenserver-core?

3. DOM0
Third party
components
XAPI
HA
Storage
Manager
QEMU
Drivers

4. xenserver-core
general model
xenserver-core
on CentOS
xenserver-core
(Xapi and friends)
xenserver-core
(Xapi and friends)
Virtualization
base packages
(Xen, Qemu, libvirt)
“Xen4CentOS”
extra packages
Base Linux distribution
CentOS 6.4

5. How can I get it?

6. yum install xenserver-core

7. apt-get install xenserver-core

9. Why?

10. How can I build it?

11. git clone xenserver-core

12. $ git clone https://github.com/
xapi-project/xenserver-core.git
$ cd xenserver-core
$ ./configure.sh
$ ./makemake.py > Makefile
$ make
...
[CURL] SOURCES/libvhd-0.9.1.tar.gz
[RPMBUILD] SRPMS/ocaml-libvhd-0.9.1-1.src.rpm
[MOCK] RPMS/x86_64/ocaml-libvhd-0.9.1-1.x86_64.rpm
[CREATEREPO] RPMS/x86_64/ocaml-libvhd-0.9.1-1.x86_64.rpm
...

13. foo.spec
foo.tgz
rpmbuild
foo.srpm
foo-1.patch
foo.srpm
mock
foo.rpm
foo.rpm
foo.rpm

14. Name:
ocaml-qmp
Version:
0.9.1
Release:
1
...
BuildRequires: ocaml ocaml-findlib ocaml-obuild
ocaml-yojson-devel cmdliner-devel ocaml-ounit-devel
makemake.py
./SRPMS/ocaml-qmp-0.9.1-1.src.rpm: ./SPECS/ocaml-qmp.spec
./SOURCES/ocaml-qmp-0.9.1.tar.gz
./SOURCES/ocaml-qmp-0.9.1.tar.gz: ./SPECS/ocaml-qmp.spec
@curl -o $@ https://github.com/xapi-project/ocamlqmp/archive/0.9.1/ocaml-qmp-0.9.1.tar.gz
./RPMS/x86_64/ocaml-qmp-0.9.1-1.x86_64.rpm: ./SRPMS/ocamlqmp-0.9.1-1.src.rpm
./RPMS/x86_64/ocaml-qmp-devel-0.9.1-1.x86_64.rpm:
./SRPMS/ocaml-qmp-0.9.1-1.src.rpm
./RPMS/x86_64/ocaml-qmp-0.9.1-1.x86_64.rpm:
./RPMS/x86_64/ocaml-obuild-0.0.2-1.x86_64.rpm

15. Debian
(experimental!)

16. Why?

17. foo.spec
foo.tgz
makedeb.py
foo.dsc
(and some tarballs)
foo-1.patch
foo.dsc
cowbuilder
foo.deb
foo.rpm
foo.rpm

18. How can I get involved?

20. xs-devel@lists.xenserver.org

21. What’s next?