Golang

Fun with Multi-stage Dockerfiles

Since Docker 17.05, there’s been a feature called multi-stage Dockerfiles. It lets you split your Dockerfile into stages, each with its own environment to perform a set of steps. In a single-stage Dockerfile, the environment you build in is the same environment you…

Functional Abstractions for CI

Continuous Integration (CI) is the practice of automatically running builds and tests to ensure the integrity of a codebase. What does this mean? Whenever someone proposes a change, CI quickly checks whether the change is OK.

• CI runs for individual…

Mutable strings in Golang

Golang strings are immutable. In general, immutable data is simpler to reason about, but it also means your program must allocate more memory to “change” that data. Sometimes, your program can’t afford that luxury. For example, there might not be any more memory to allocate. Another…

Go Reflection: Creating Objects from Types — Part I (Primitive Types)

This is part 1 of a 2 part blog series on Creating Objects from Types in Golang. This part discusses creation of primitive types.

A user-friendly encoding/json for Golang

Golang’s built-in JSON library focuses on the programmer. When it encounters an error while decoding a JSON file, it produces a message about the Go type it couldn’t deserialize. That’s perfect for a developer writing code, but it’s not so good for an…