Motivation Building Docker images for multiple architectures on GitHub runners, which currently support only the amd64 architecture, can be a time-consuming process. Utilizing QEMU for emulation allows for multi-architecture builds, but it significantly increases build times. In this post, we will explore how cross-compilation can dramatically decrease Docker build times, based on an example from the Kuadrant Limitador project where I implemented these changes. Introduction Docker multi-architecture images are essential for ensuring that applications run smoothly on various hardware platforms, from x86_64 servers to ARM-based devices....

Motivation While working on a Go service, I encountered an intriguing problem: a goroutine leak caused by unclosed HTTP connections. This issue was challenging to reproduce as it only occurred when a specific service utilized Resty and custom HTTP transport options while interacting with our service. Delving deeper into the intricacies of managing HTTP connections, I realized the criticality of diligently checking and managing these connections. This blog post aims to shed light on this problem and emphasize the importance of managing HTTP connections to prevent goroutine leaks....

Motivation Some time ago, while working on a college assignment using Javalin, I encountered some labs that required running SQL statements manually on the database before deploying the application to Heroku. This was a tedious task that had to be repeated every time there were changes or additions to the tables. Although I knew about Flyway and its ability to automate database migrations, I couldn’t find any tutorial on the Javalin site that explained how to use it....