Code-free
Code-free

Pixie Queen

Or how I learned to to UEFI iPXE

Kalle Happonen

Geek. Systems Specialist @CSCfi

June 24, 2015

TL;DR;

  • make UEFI specifc iPXE chainloadable firmware
make bin-x86_64-efi/ipxe.efi
  • Configure DHCP server to manage both BIOS and UEFI machines
  • Add "initrd=initrd.img" to the kernel kickstart parameters
  • (Disable STP for the port of the the iPXE booting host)

Background

. . .

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Tromp the Domains

Trying Identity API v3 and Domains

Kalle Happonen

Geek. Systems Specialist @CSCfi

May 25, 2015

General disclaimer, I'm talking about OpenStack Juno, but a lot of this applies to Kilo too.

Before getting to this post, you will need your assignment separated from identities as per my previous post.

Keystone and keystone domains

Keystone - the identity management component of OpenStack - has for a while . . .

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Floating Shield

Kalle Happonen

Geek. Systems Specialist @CSCfi

April 01, 2015

Normal disclaimer: RDO Icehouse

I ran into an issue where a VM previously had a floating IP, but it was released back to the pool. It was important to get that IP back for that VM.

Icehouse-era Neutron does not allow you to specify which specific floating ip you want, but kilo might. So how could this be fixed? I guess I . . .

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Identity Crisis

Moving Keystone from LDAP roles to SQL roles

Kalle Happonen

Geek. Systems Specialist @CSCfi

January 27, 2015

Background

In early versions of OpenStack keystone did all its own user management. When it matured a bit, there was a cool new feature, you can point it at LDAP for authentication and authorization. This was a big step forward when running OpenStack as a part of a larger system.

Everything wasn't perfect though. . . .

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Shared Trauma

Kalle Happonen

Geek. Systems Specialist @CSCfi

January 09, 2015

This time, I'll write about a problem I did manage to DuckDuckGo, but it did little to make me happy after I debugged the problem. Our OpenStack version is Icehouse, this issue has been actively debated and different versions might have different defaults. I'm not completely sure about the Juno status, if this is handled correctly for . . .

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Grizzly Fate - Part 2

Flashback

Kalle Happonen

Geek. Systems Specialist @CSCfi

December 29, 2014

In the previous post I went through some issues we had with our OpenStack upgrade from Grizzly to Icehouse.

We had successfully run the OpenStack update scripts, and we were in the Icehouse version. We started testing, and everything worked fine... until security groups. Well, they did work, they just weren't there. There was . . .

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Grizzly Fate - Part 1

Kalle Happonen

Geek. Systems Specialist @CSCfi

December 23, 2014

We recently updated one of our OpenStack installations from Grizzly to Icehouse. Updating OpenStack by one version is tricky at best, and if you try two versions, you're bound to hit some issues. We did.

Here is a short recap of what extra we had to do for the update. It does not include the basic tasks like updating the . . .

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