Ampere Computing chips run the ARM64 instruction set. My laptop is a Dell running x86_64. In order to edit locally, but build remotely, I make use of servers in our datacenter. These are the steps I am taking.Continue reading
ssh allows you to run a command on a remote machine. You may want to use a shell variable in a remote command. You have to be aware of when that variable gets evaluated.Continue reading
One of our ironic baremetal nodes was suffering a cleaing failure. Fixing it was easy…once we knew the cause/Continue reading
Enough of us are looking at the cluster that I want an easy to read snapshot of the node state. So, I convert the csv output of the openstack command into a simple HTML table.Continue reading
Some custom jq for RegEx selection of OpenStack Ironic baremetal nodes. Our Server types show up in their names. I want to be able to build lists of only the Mt. Jade Servers, which have names that look like this:
openstack baremetal node list --sort provision_state:asc -c UUID -c Name -f json | jq '. | select(.Name | test("jade."))'
While I tend to think about the nodes in OpenStack term, the people that physically move the servers around are more familiar with their IPMI address. We have several nodes that are not responding to IPMI requests. Some have been put into the manageable state, some are in error.
Here’s the query I used to list them.
If an OpenStack server (Ironic or Nova) has an error, it shows up in a nested field. That field is hard to read in its normal layout, due to JSON formatting. Using jq to strip the formatting helps a bunch
The nested field is fault.details.
The -r option strips off the quotes.Continue reading
Table of contents
My team is running a small OpenStack cluster with reposnsibility for providing bare metal nodes via Ironic. Currently, we have a handful of nodes that are not usable. They show up as “Cleaning failed.” I’m learning how to debug this process.Continue reading
To reinstall a machine that is managed by IPMI, you tell it to PXE boot and then power cycle. Here are my notes.Continue reading
I don’t understand, yet, why this works, but it does. Thanks to this post