Container Orchestration Tools Comparison – DZone Cloud

Containers have become popular as software development shifts from traditional methods to cloud-native development and DevOps. In a containerized environment, a single instance of an operating system is shared across apps. For those more familiar with virtual machines, it’s useful to remember that each VM contains its own instance of a full operating system and … Read more

Spring, IoC Containers, and Static Code Principles

In this article, I would like to discuss the inversion of control patterns, static code (can be legacy or newly created) within an IoC framework like spring, and the issue of wiring utility methods in static code inside the IoC framework. Static Methods For example, we have an HttpUtils class with inside a bunch of … Read more

What is Podman? The container engine replacing Docker

Podman is a container engineā€”a tool for developing, managing, and running containers and container images. Containers are standardized, self-contained software packages that hold all the elements necessary to run anywhere without the need for customization, including application code and supporting libraries. Container-based applications have revolutionized software development over the past decade, making distributed and cloud-based … Read more

mysql – Why am I getting a “The connection was reset” error when trying to run my Django application on a Docker container?

I’m trying to containerize my Django app, and always seem to keep running to issues with mysql connection (or permissions?) issues. I still don’t really understand what’s going on during this process, and I keep running into the same general error. My config files are at the end of this post. I’m in my project … Read more

html – Changing position from absolute to sticky moves `:after` element to bottom of container

var containerOverrindeStyle = document.createElement(“style”); window.onscroll = function (e) { fromTop(Math.ceil(scrollY)); }; function fromTop(offset){ containerOverrindeStyle.innerHTML = `.container:after,.container:before { top: ${ 64 + offset }px; }`; document.head.appendChild(containerOverrindeStyle); } body { background: #29cebe url(../img/interface/body-bg.png) center top; background-size: 500px 500px; box-shadow: inset 0 1px 0 rgb(255 255 255 / 32%), inset 0 -1px 0 rgb(255 255 255 / 32%); … Read more

Securing Containers With Seccomp – DZone DevOps

This blog post is the second half of my research on making it easier to create Seccomp-BPF filters and secure your containers with them. If you haven’t read the first half of this blog post yet, I recommend doing so before continuing here. For returning readers, I’ll briefly refresh you on my last post. I … Read more

Understanding Flatcar Container Linux | InfoWorld

Microsoft isn’t only a Windows company. It now shepherds several Linux distributions alongside its own operating systems. It’s important to remember that these aren’t general-purpose Linuxes like Ubuntu or Red Hat. Instead, they’re targeted at specific use cases: SoNIC for cloud-scale network hardware, SphereOS for secured industrial Internet of Things hardware, and CBL-Mariner as a … Read more