Fedora on Dell XPS 13 (2015)

I've recently obtained a Dell XPS 13 Model 9343 which came preinstalled with Ubuntu (ca. 1000 €). I wiped that and installed Fedora 21. Since Major Hayden's review was quite horrible which i could not confirm in all cases I decided to do my own review.

$ cat /proc/cpuinfo
Version: Intel …
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Some upgrade notes on OpenStack Icehouse to Kilo

We're currently running OpenStack in production (well, almost) on the Icehouse release. We used to build our own packages but currently switching to RDO and get rid of the legacy OVS neutron plugin. So I tried to pre-perform the whole upgrade thing on packstack for testing in advance, just in …

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OpenStack Summit Paris recap

Here's some summary of things I've heard in Paris' OpenStack Summit:

  • Ubuntu's LXD (http://goo.gl/gNmHjT)
    • There is already some effort going on to support LXC using Libvirt in Nova. I don't think there will be much demand on LXD but just my two cents
  • Dockerizing OpenStack services (Proof …
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Security Group Migration Headache

We've recently upgraded our Openstack Setup from Grizzly to Icehouse. After the upgrade all security groups where gone. After a little bit of research here and asking there i finally wrote a script migrating all nova sg stuff to neutron. You can find that script on Github.

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Openstack Summit May 2014 Atlanta

Just some notes to not to forget:

  • Heat, Tuskar, DSL2, TripleO - Link
  • Upcoming Heat Puppet Hook (and possibly others like Ansible, Chef, ...)
  • eNovance is running every l3-agent on every compute node with vrrp (keepalived)
    • we could do better for sure, but worth considering
  • Groundwork, Solinea (Goldstone sounds like a great …
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Highly available cluster filesystem with DRBD and GFS2

Today I set up an replicated cluster filesystem using in DRBD an GFS2 inside 2 KVM-based virtual machines. These are running CentOS 6 with an additional storage vdb as the base drive for DRBD. I already set up an MariaDB Galera-Cluster. First of, as CentOS 6 has no drbd* packages …

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