Hey, Rafael!

Hey, Rafael!

Crazy ideas on cloud infrastructure, provisioning, scaling platforms and beyond. Often wrong.


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til aws

Cloud-Init doesn't execute commands in runcmd section? There's a fix for that...

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Recently I've been working with cloud-config templates and custom Amazon Linux instances on AWS, when I ran into a very weird issue: the commands I put under the runcmd section were not executed at the end of the Cloud-Init run. Weirder still was the fact the…

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howto networking unifi

UniFi security gateways, cloud controllers and VLAN-tagged WANs, oh my!

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If you choose to install it outside of your local network, you'll find that it makes adopting devices a little trickier (at least for the initial connection) because you can't make use of Layer 2 adopting (what I like to call "magical wavey adoption funtimes").…

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travel gear

Tread lightly, a love letter to a bag

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Since returning from a 6-week international trip at the end of June, I've been meaning to write this unsponsored love letter to a piece of gear that completely changed the way I travel. But let's start with a story... A wild idea appears... The year was 2015,…

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howto git gpg

Signing Git commits with GPG using Keybase

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GitHub recently announced support for signing commits using a GPG key. This provides an extra layer of security when verifying changes made to a repository come from valid users. Setting up GPG is super easy with Keybase, so I won't repeat the instructions her…

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service desktop workstation

Prettify your desktop with Splashbox

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FINAL UPDATE: This app is now offline. The Dropbox API v1 was sunsetted and there are no good alternatives to the gem used for authentication in Splashbox. Farewell, and thanks for all the fish! I've been a long-standing fan of inspirational desktop photos. Wh…

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howto chef capistrano

Supercharging Capistrano with Chef

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After a few months using Chef, the need to run commands on many nodes at once appeared. While Chef itself has a knife ssh option, it does not provide an interactive way of running commands on a group of nodes and then getting an immediate response. And if you…