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Showing posts from April, 2011

1st devops Berlin meetup

On Tuesday, April 5th 2011, there was the first meeting of the devops Berlin XING group at ImmobilienScout24 where I also work.

About 20 people showed up for an interesting mix of talks and open space. I got some very interesting and promising contacts and was happy to meet several people whom I had not seen for a long time.

My own talk was about Package Deployment — Building Bridges between Dev and Ops and is available as a PDF download. The technology that we are building is available at the YADT project homepage and currently undergoing some rework before we can release it to the public.

XEN PV VM on VMware ESX

Seems like a total waste of time without practical use? Well, it is — unless you need to test drive an idea that will be rolled out in your production data center running XEN PV but you have only VMware ESX as a playground.

Since I spent a little time putting the pieces together I will share my experience based on CentOS 5.5. Basically it all went es expected, I only had some trouble to get the XEN PV VMs into the regular network via bridging versus the NAT which is the default that comes with CentOS.

Basic Setup:
Configure your VMware VM to allow promiscuous networking:Allow promiscuous networking on the vSwitchAdd this line of manual configuration to the Extended Configuration of the VM:
ethernet0.noPromisc=“FALSE”Install regular CentOS and add the group "Virtualization":
yum groupinstall VirtualizationMake sure that there is enough free disk space in /var/lib/xen/images to store your virtual disk images.Network Setup: 
 Edit /etc/libvirt/qemu/networks/default.xml to look like …