Exec as root user in Kubernetes
Hi 👋, In this short tutorial I will show you a way of getting a root shell in containers running inside a modern Kubernetes cluster. Prerequisites: Roo...
Recent posts
Apache Flink Checkpoints on S3 and S3 compatible storage
Hello, Recently someone working at Yahoo emailed me regarding an old thread I’ve started on the Apache Flink user mailing list. I’ve replied to the e-mail b...
envsubst – Substitute Variables for Environment Variables
Hi 👋, Introduction In this short article I want to showcase a nice and useful Linux command. The comand 🥁 envsubst 🥁. In short it Substitutes the values o...
Using confluent-kafka-go on MacOS M1
Hello, TLDR; brew install librdkafka openssl@3 pkg-config export PKG_CONFIG_PATH="/opt/homebrew/opt/openssl@3/lib/pkgconfig" go test -tags dynamic ./... I...
How to identify similar images using hashing and Python
Hi 👋, In this article I would like to talk about image hashing. Image hashing algorithms are specialized hashing functions that output the hash of an image...
DeMorgan’s Law
DeMorgan’s law is a simple law that I learned at UPT during one of my hardware classes. While it is useful in hardware it, it is also useful when writing pr...
Object Pool Pattern
Hi 👋 In this article we’ll talk about the Object Pool pattern in Golang. The Object Pool pattern is a design pattern used in situations when constructing o...
Testing Tips: Avoid sleep in tests
Hi 👋, In this article I want to show a testing tip that I’ve recently learned myself by reading Software Engineering at Google: Lessons Learned from Program...
HTTPClients are reusable
Hi 👋, I wanted to write this article to tell you that instantiating a HttpClient class is often a costly operation. If you have a method that does somethin...
Go Pattern: Sorting a slice on multiple keys
Hi 👋 In this article I want to highlight a simple pattern for sorting a slice in Go on multiple keys. Given the following structure, let’s say we want to s...