Creating and hosting your own deb packages and apt repo
As an Ubuntu user, I find myself typing apt install … frequently as a way to install software on my system. But what if I wanted to distribute my code to o...
Archive of Tutorials
Achieving Repeatability in Continuous Integration
In software engineering, continuous integration is the practice of merging all developers’ working copies to a shared mainline several times a day. Grady B...
Protocol Buffers Best Practices for Backward and Forward Compatibility
Protocol Buffers serialize structured data so it can be efficiently stored or shared over a network. They were designed for internal use at Google in 2001 a...
Understanding Docker Multistage Builds
At first glance, writing Dockerfiles appears to be a straightforward process. After all, most basic examples reflect the same set of steps. However, not all...
DOS Gaming In Docker
Distributing shareware from the 90’s in modern Docker images.
Building a Monorepo with Bazel
A monorepo is perhaps what you would expect from the name: a single code repository for your entire codebase.
Understanding Docker Networking
Docker is the de facto model for building and running containers at scale in most enterprise organizations today. At a very high level, Docker is a combinat...
Building a Real-Time Application in the Phoenix Framework with Elixir
The Elixir language, along with the Phoenix framework, has been growing in popularity at a quick pace, and with good reason. Phoenix offers productivity lev...
Addressing Slow Performance in Jenkins
There’s nothing more frustrating than a sluggish continuous integration system. It slows down feedback loops and prevents code from reaching production quic...
Understanding Bash
Bash scripts give you the ability to turn a tedious series of commands into an easily runnable and repeatable script. With many real-world use cases, like u...
Compiling Containers - Dockerfiles, LLVM, and BuildKit
How are containers made? Usually, from a series of statements like RUN, FROM, and COPY, which are put into a Dockerfile and built. But how are those commands...
Build Your Own Ngrok Clone With AWS
Ngrok is a tool that allows you to create secure, publically accessible URLs for your locally running code.
Understanding Docker Logging and Log Files
Docker logging and its management are an important part of the containerization of your application. Once you’ve deployed your application, logging is one o...
How to Setup and Use Amazon’s Elastic Container Registry
A container is a simple unit that packages all your code and its dependencies so your application can run quickly and reliably from any computing environmen...
What is Buildkit?
There is an excellent open-source project that you have probably used without realizing it. It’s called BuildKit, and it is what turns a Dockerfile into a D...
How to Man in the Middle HTTPS Using mitmproxy
Have you ever wanted to see what kinds of requests a service or application on your machine is making and what kind of responses it is getting back?
Encrypting Data With SSH Keys and Golang
We’re currently working on a server for sharing secrets between developers and CI systems, and one of the features we decided to support is passwordless log...
Using gRPC with Golang, Python, and Ruby
I was surprised to learn that Google protocol buffers (protobufs), were first introduced nearly two decades ago. They were used internally at google as earl...
Can We Build Better?
Have you ever had a test fail in the build but not locally? I have. Have you ever then burnt half a day pushing small changes and waiting for your build to ...