How I joined Spotify as an Engineer From China — 2020 is a magical year. With Covid-19 raging around the world, people’s work and lifestyle have changed a lot. But the opportunities still exist, and my career ushered in a tremendous change. I moved from southern China to Sweden🇸🇪 and became a software engineer at Spotify. I have always wanted…

A practical example of applying Go-style builder pattern on an Operator condition update — It is advisable that we code within some “frame”, that is, following certain design patterns, which are effective, replicable, widely recognized, and easier to understand and apply. Why design patterns To be less abstractive, we start with an example in practice. Usually, we define a struct, and then initialize it when using it.

Walk through Mutex and other sync tools — In Go 1.18, generics, which catches most of the eyes, is considered the biggest syntax “evolution” since the advent of Go. But, other changes to API, which don’t draw so much attention, should not be ignored, such as TryLock being added to the Mutex and RWMutex APIs of the sync…

Step by step on how to publish a Go package — go.dev is a site where various resources for Go developers are shared, such as “Get Started”, Tutorial, Packages (pkg.go.dev), and all the official blogs. Among them, Packages is where I visit most, which allows free access to all the open-source Go packages submitted by communities including the native Golang packages…

Protect your cluster with OPA Gatekeeper and compare it with Kyverno — Let’s continue with cluster governance. In my last article, I mentioned some aspects that needed to be highlighted, especially in security and resource management, for example, the permissions granted to users at different levels, like who have the access to view cluster-wide resources, and create or modify the certain type…

Build tools to clean up resources using client-go, GCP API, and Github API — As platform developers, we generally universalize the IaaS concept and encourage developers to create and manage resources with YAML, which then are stored in Github, so that we get free version management, history, and better visibility. And by integrating some Gitops tools in CI/CD, we can achieve unified validation, mutating…

A new feature in Go 1.18 that boosts your local development — Go generics has drawn a lot of attention and received mixed reviews since it was published in Go 1.18. But don’t stare only at Go generics. As an important version, Go 1.18 has more to offer and “ have fun with”, such as Workspace, an upgraded version of the Go…

Compare golang bigcache, go-cache, groupcache, and golang-lru in all aspects — In Build a Go KV Cache from Scratch in 20 minutes, I walked you through what matters when writing a local cache, and eventually implemented one, whose performance was beaten badly by that of the popular go-cache on Github though. However, the bright side is that we can learn a…

Details of Go Timer with usage examples from Kubernetes — Timer is one of Go’s many ingenious designs. It only exposes a limited number of APIs when implementing single or multiple timing, encapsulating the relatively complex underlying data structures and concurrent operations. When reading the source code of the Kubernetes scheduler, I learned more about the Go timer’s application and…