Tag: exocortex
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It's going on summer in the Bay Area, which means that it's warming up a bit both outside and inside (because air conditioning is Not A Thing out here). That, coupled with the not inconsiderable research infrastructure I have at home has left me wondering and worrying about just how hot my office gets during the day while I'm working. Now, I could just put a simple little thermometer on my shelf (and I did) but my concerns are a bit bigger than that. What happens if my office temperature reaches a critical point and servers start melting down on …
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Longtime readers have no doubt observed that I plug a lot weird shit into my exocortex - from bookmark managers to card catalogues to just about anything that has an API. Sometimes this is fairly straightforward; if it's on the public Net I can get to it (processing that data is a separate issue, of course). But what about the stuff I have around the lab? I'm always messing with new toys that are network connected and occasionally useful. The question is, how do I get it out of the lab and out to my exocortex? Sometimes I write bots to …
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Not too long ago I was noodling over a problem: I wanted to break up the scheduling queues in Huginn to make my fleets of agents a little more efficient when the execute. The best way I could think of was to make some of the schedules stochastic - periodically have an agent roll some dice and depending on what comes up decide whether or not to trigger the agents downstream. So, of course I started looking for a random number generator that would basically roll 1d10. However, the Liquid templating language that Huginn uses internally doesn't have any function to …
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Let's say that you have a bunch of servers that you admin en masse using Ansible. You have all of them listed and organized in your /etc/ansible/hosts file. Let's say that each server is running a system service (like my Systembot) running under systemd in --user mode. (Yes, I'm going to use my exocortex-halo/ repository for this, because I just worked out a good way to keep everything up to date and want to share the technique for everyone new to Ansible. Pay it forward, you know?) You want to use Ansible to update your copy of Systembot …
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Last weekend I was running short of stuff to hack around on and lamented this fact on the Fediverse. I was summarily challenged to find a way to archive posts to the Fediverse in an open, easy to understand data format that was easy to index, and did not use any third party services (like IFTTT or Zapier). I thought about it a bit and came up with a reasonably simple solution that uses three Huginn agents to collect, process, and write out posts as individual JSON documents to the same box I run that part of my exocortex on …
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EDIT - 20211120 - Edited the page so that it makes more sense. The last couple of edits were out of sequence. Cleaned up a few things, too.
EDIT - 20211107 @ 1324 UTC-7 - Added how to monitor the drive replacement process.
EDIT - 20201206 @ 2216 UTC-7 - Added how to remove a hard drive and replace it with a bigger one to upgrade.
EDIT - 20200311 @ 1859 UTC-7 - Added how to replace a dead hard drive in a btrfs pool.
EDIT - 20191104 @ 2057 UTC-7 - Figured out how long it takes to scrub 40TB of disk space. Also did a couple of experiments with rebalancing btrfs and …
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A common task that people using Huginn set up as their "Hello, world!" project is getting the daily weather report because it's practical, easy, and fairly well documented. However, the existing example is somewhat obsolete because it references the Weather Underground API that no longer exists, having been sunset at the end of 2018. Recently, the Weather Underground code in the Huginn Weather Agent was taken out because it's no longer usable. But, other options exist. The US National Weather Service has a free to use API that we can use with Huginn with a little extra work. Here's what …
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I spend a lot of time digging around in other people's data. If I'm not hunting for anything in particular then it's a bit of a crapshoot, to be honest, if only because you never know what you're in for. You can pretty much take it to the bank that if you didn't assemble it yourself, you can't count on it being complete, well formed, or anything approximating the output of a human being (it usually came out of a database, but I think you see what I'm getting at). Sometimes, if I'm really lucky I'll just get hold of …
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