A busy week or two

Thursday, 12 October 2017

It feels like the past week or two has been very busy, and so I'm looking forward to my "holiday" next month.

I'm not really having a holiday of course, my wife is slowly returning to work, so I'll be taking a month of paternity leave, taking sole care of Oiva for the month of November. He's still a little angel, and now that he's reached 10 months old he's starting to get much more mobile - he's on the verge of walking, but not quite there yet. Mostly that means he wants you to hold his hands so that he can stand up, swaying back and forth before the inevitable collapse.

Beyond spending most of my evenings taking care of him, from the moment I return from work to his bedtime (around 7:30PM), I've made the Debian Administration website both read-only and much simpler. In the past that site was powered by a lot of servers, I think around 11. Now it has only a small number of machines, which should slowly decrease.

I've ripped out the database host, the redis host, the events-server, the planet-machine, the email-box, etc. Now we have a much simpler setup:

  • Front-end machine
    • Directly serves the code site
    • Directly serves the SSL site which exists solely for Let's Encrypt
    • Runs HAProxy to route the rest of the requests to the cluster.
  • 4 x Apache servers
    • Each one has a (read-only) MySQL database on it for the content.
      • In case of future-compromise I removed all user passwords, and scrambled the email-addresses.
      • I don't think there's a huge risk, but better safe than sorry.
    • Each one runs the web-application.
      • Which now caches each generated page to /tmp/x/x/x/x/$hash if it doesn't exist.
      • If the request is cached it is served from that cache rather than dynamically.

Finally although I'm slowly making progress with "radio stuff" I've knocked up a simple hack which uses an ultrasonic sensor to determine whether I'm sat in front of my (home) PC. If I am everything is good. If I'm absent the music is stopped and the screen locked. Kinda neat.

(Simple ESP8266 device wired to the sensor. When the state changes a message is posted to Mosquitto, where a listener reacts to the change(s).)

Oh, not final. I've also transfered my mobile phone from DNA.fi to MoiMobile. Which should complete soon, right now my phone is in limbo, active on niether service. Oops.

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