Author Archives: arensb

Ansible As Scripting Language

Ansible is billed as a configuration manager similar to Puppet or cfengine. But it occurred to me recently that it’s really (at least) two things: A configuration manager. A scripting language for the machine room. Mode 1 is the normal, … Continue reading

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Buying Lunch with Bitcoin?

This weekend, I had occasion to eat at a food truck that had this intriguing sign in the window: This intrigued me, because the way I understand it, it takes 10-20 minutes for Bitcoin transactions to go through. That’s why … Continue reading

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Ansible: Running Commands in Dry-Run Mode in Check Mode

Say you have an Ansible playbook that invokes a command. Normally, that command executes when you run ansible normally, and doesn’t execute at all when you run ansible in check mode. But a lot of commands, like rsync have a -n or … Continue reading

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Pseudo-Numeric Identifiers

Let’s say you’re a programmer, and your application uses Library of Congress Control Numbers for books, e.g., 2001012345, or ZIP codes, like 90210. What data types would you use to represent them? Or maybe something like the Dewey Decimal System, which uses … Continue reading

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Removing Magic

So this was one of those real-life mysteries. I like crossword puzzles. And in particular, I like indie crossword puzzles, because they tend to be more inventive and less censored than ones that run in newspapers. So I follow several … Continue reading

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Do You Even Science, Frater?

The other day, I went to a Thomistic Society talk about Aquinas’s views on the Problem of Evil and other topics. At one point, the presenter casually mentioned that humans engage in self-destructive behavior, like alcoholism, self-mutilation, drug addiction, etc., while non-human … Continue reading

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Democracy Is Not Football

One of the many things that annoyed me in the wake of Trump’s upset victory was that for so many people on the winning side, this boiled down to “delicious librul tears“. And even a lot of Trump’s executive actions … Continue reading

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