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New
The latest blog posts to take off on Hacker News. 1,839 posts.
Infrastructure & DevOps
Any year
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Your own Debian Mail Server (part II): how to prove you are not a spammer
TL;DR: check mail-tester.com or Spam Checker. If you don't get 10/10, read this post. In a previous post, we saw how to configure a Debian mail server with Postfix and Dovecot, but we did not address an important issue: spam. Major e-mail providers are defending their users …
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Visualizing Docker Containers and Images
This post is meant as a Docker 102 -level post. If you are unaware of what Docker is, or don't know how it compares to virtual machines ...
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HAproxy in the era of Microservices
Tales of a Software Craftsman
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The microservices cargo cult
Microservices are awesome. We know this because of all the success stories that are circulating lately. The news is full of such stories, of people taking large, monolithic codebases, breaking them up, adding HTTP APIs and enjoying all the benefits.
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The sad state of web app deployment
I spent a good chunk of the last four days installing an Internet web forum, which claims it can be up and running in 30 minutes. I like to think I’m pretty alright at computers. So what went wrong here? Well let me tell you.
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How we ended up with microservices
Microservices are a thing these days.
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Kubernetes from the ground up: the API server
This is the second post in a series on Kubernetes , the open source cluster manager. The first post was about the kubelet .
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96 MacBook Pro’s in one server rack
96 MacBook Pro’s in a single Rack space We had a need to introduce 96 MacBook Pro’s for our product testing. Our requirements included Retina displays, small form factor, low powe…
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Why Docker Is Not Yet Succeeding Widely in Production
Docker’s momentum has been increasing by the week, and from that it’s clearly touching on real problems. However, for many production users today, the pros do not outweigh the cons. Docker has done fantastically well at making containers appeal to developers for development, testing and CI environments—however, it has…
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Nginx with dynamic upstreams
I recently made a setup at work where I had a Nginx server facing the user, which would forward requests to a service running behind an AWS Elastic Load Balancer (aka. ELB). That in itself doesn’t sound like a difficult task, you just find the hostname for the ELB and point Nginx at it with a proxy_pass statement like…
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Under the Hood of Amazon EC2 Container Service
In this post I explore the Amazon ECS architecture and what this architecture enables.
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Goodbye, OpenStack
I just removed myself from every OpenStack mailing list and meetup. I’m sure I’ll still use it, but I don’t see myself as part of that community any longer. When I was at DreamHost, I really felt like part of that community and that I could help make it better. However, in the three years since I’ve left DreamHost, I…
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GitFlow considered harmful
GitFlow is the most popular Git branching model. After using it (and, more importantly, after seeing how it is used) for over a year now, I can say with confidence: I hate it. In the article, I try to explain why, and offer a better alternative.
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Why I dislike systemd
As a Linux sysadmin in the 2010s, it's hard not to have an opinion on systemd. But what I find baffling about it is how divisive it is; nearly everyone (or at least the most vocal crowd) seems to either love it or hate it. When I tell people that systemd was the catalyst for my defection to OpenBSD last year, their…
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Docker Containers on the Desktop
How to run docker containers on your desktop.
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Xhyve – Lightweight Virtualization on OS X Based on Bhyve
The Hypervisor.framework user mode virtualization API introduced in Mac OS X 10.10 (Yosemite) cannot only be used for toy projects like the hvdos DOS Emulator, but is full-featured enough to support a full virtualization solution that can for example run Linux.
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AWS Lambda as a back end for a single-page app
It’s a bit of a sensationalistic title, but hear me out. And sorry for the boring-ish example in this article. This is designed to only excite people who really get it. :)
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Scaling Secret: Real-Time Chat
(This is the first of a series of technical posts I intend to write, and my goal is to help other engineers learn from the experience of…