Category Archives: Uncategorized

Deep Dive into ECS

Posted on 2018-02-13 by Jethro Carr

I spent a fair bit of time in 2017 re-architecting the carnival.io platform onto Amazon ECS, including working to handle some tricky autoscaling challenges brought on by the nature of the sudden high-load spikes experienced when we deliver push messages to customers. … Continue reading →

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Puppet Autosigning & Cloud Recommendations

Posted on 2018-01-28 by Jethro Carr

I was over in Sydney this week attending linux.conf.au 2018 and made a short presentation at the Sysadmin miniconf regarding deploying Puppet in cloud environments. The majority of this talk covers the Puppet autosigning process which is a big potential … Continue reading →

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Firebase FCM upstream with Swift on iOS

Posted on 2018-01-01 by Jethro Carr

I’ve been learning a bit of Swift lately in order to write an iOS app for my alarm system. I’m not very good at it yet, but figured I’d write some notes to help anyone else playing with the murky … Continue reading →

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MongoDB document depth headache

Posted on 2017-11-19 by Jethro Carr

We ran into a weird problem recently where we were unable to sync a replica set running MongoDB 3.4 when adding new members to the replica set. The sync would begin, but at some point during the sync it would … Continue reading →

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MacOS High Sierra unable to free disk space

Posted on 2017-11-06 by Jethro Carr

I recently ran out of disk space on my iMac. After migrating a considerable amount of undesirable data to either the file server or /dev/null, I found that despite my efforts, the amount of free disk space had not increased. … Continue reading →

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Access Route53 private zones cross account

Posted on 2017-08-08 by Jethro Carr

Using Route53 private zones can be a great way to maintain a private internal zone for your server infrastructure. However sometimes you may need to share this zone with another VPC in the same or in another AWS account. The … Continue reading →

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FailberryPi – Diverse carrier links for your home data center

Posted on 2017-07-23 by Jethro Carr

Given the amount of internet connected things I now rely on at home, I’ve been considering redundant internet links for a while. And thanks to the affordability of 3G/4G connectivity, it’s easier than ever to have a completely diverse carrier … Continue reading →

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Easy APT repo in S3

Posted on 2017-05-22 by Jethro Carr

When running a number of Ubuntu or Debian servers, it can be extremely useful to have a custom APT repo for uploading your own packages, or third party packages that lack their own good repositories to subscribe to. I recently … Continue reading →

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StuffMe? Or Just Stuffed?

Posted on 2017-05-03 by Jethro Carr

The big news today is that the NZ Commerce Commission has declined the NZME/Fairfax merger. There’s plenty of coverage from the various news companies around NZ, but does it really matter? Either way NZME and Fairfax are stuffed – merger … Continue reading →

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Detectatron

Posted on 2017-02-17 by Jethro Carr

I recently installed security cameras around my house which are doing an awesome job of recording all the events that take place around my house and grounds (generally of the feline variety). Unfortunately the motion capture tends to be overly trigger happy … Continue reading →

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