Tag: OpenStack

CoreOS Cluster on OpenStack Pike

Run a simple CoreOS cluster natively in OpenStack. Plus, learn a tremendous amount about the OpenStack CLI tools as opposed to Heat:https://docs.openstack.org/heat/latest/ References https://coreos.com/os/docs/latest/booting-on-openstack.html – Latest official documentation http://lollyrock.com/articles/coreos-openstack/ – Primary resource https://docs.openstack.org/magnum/latest/user/ – Magnum-specific settings (so this page can

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OpenStack: Recover Galera Cluster

OpenStack MySQL (MariaDB Galera Cluster) Recovery Problem: Your MySQL Secondary Database will not start because of disk space, InnoDB problems, etc. This hit me when the Keystone token cleanup got fouled up and I ended up with 900K expired token

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OpenStack Kilo and Docker: CentOS 7 Integration

Found a number of references but here’s the recipe from zero to hero. References Useful writeup on CentOS 7: https://ask.openstack.org/en/question/67682/docker-setup-on-kilo/ Discussion of Docker storage: http://www.projectatomic.io/blog/2015/06/notes-on-fedora-centos-and-docker-storage-drivers/ Writeup on resize Docker storage: https://jpetazzo.github.io/2014/01/29/docker-device-mapper-resize/ CentOS 7 bug with overlayfs on XFS filesystem (obviates

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OpenStack One-Liners

Hi All. Here are some interesting one-liners I’ve used. Hope they help! And by “one-liner”, of course, I mean “a bunch of commands all typed on one line” ๐Ÿ™‚ All one-liners assume you have sourced in your RC file so

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OpenStack Tenants and Nagios Integration Script

Hi All! A detailed article to integrate OpenStack tenants with Nagios! While my promised articles on implementing High Availability within OpenStack (which I’ve done now for Icehouse and Kilo) are still just in my brain, here’s something else to keep

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OpenStack HA: Part 01: Accounts

Here is a writeup on what I did to implement HA within OpenStack Icehouse. I’m currently working on revamping / automating the entire process for Kilo – but that will be a while from now. We’ll walk through the entire

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OpenStack Client Tools: Mac Install Errors

Today’s adventure is on the Mac OSX Mavericks, we tried to install OpenStack client tools and had some failures. Read on to see how we work around it.

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Debugging Neutron DHCP Failures on OpenStack

Hi All. Today’s adventure touches on a common OpenStack Neutron theme: “I just created a VM. It’s running. It says it has an IP address. And I can’t ping it!!” Read on for tips on debugging Neutron DHCP Failures on

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OpenStack: List State of All VMs

Hi All! Today’s post is a quick script to show how you can get all your OpenStack VMs and their state in a single command. Check it out!

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OpenStack: Fix “Missing” External IPs in Neutron

Have you ever assigned a “floating” IP on your external network to an OpenStack VM…but not been able to ping it? Read our article for info on how we workaround the problem!

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