Unprivileged OpenJ9 CRIU Support

Overview The previous blog introduced using OpenJ9 CRIU Support. However, the application had to be run with elevated privileges. This blog outlines how to use OpenJ9 CRIU Support with minimal privileges. We have tested running a UBI8 container on RHEL 8.6 and a Ubuntu 22.04 container on Ubuntu 22.04 with the latest kernel updates (this…

Getting started with OpenJ9 CRIU Support

Overview The previous blog introduced Eclipse OpenJ9 CRIU Support. In this blog you will learn how you can use our setup containerfiles as a convenience to create an environment for experimentation with OpenJ9 CRIU Support. This blog assumes the demo below is run as the root user. This is because the user who launches the…

Fast JVM startup with OpenJ9 CRIU Support

In recent times, businesses have placed an emphasis on modernizing their software stack into cloud-based services. This transformation has generally meant breaking up big complex long running modules into much smaller short-lived units. These units are often packaged as containers and can be individually provisioned in worker nodes and scaled to meet demands. The days…

Setting up an OpenJ9 Development Environment with Visual Studio Code + Docker + CMake

Setting up a proficient development environment on a large project such as OpenJ9 with so many pieces in play can be a daunting task. Often times, setting up such a development environment and being able to navigate the codebase with familiar tools and with the full power of an IDE is worth the effort in terms of productivity. This blog post will guide you through setting up a development environment with a one-click build trigger, full Intellisense support, and full debugging support using Visual Studio Code, Docker, DevContainers extensions, and CMake.

Developing with Appsody and OpenJ9 SCC

The cloud is becoming more and more essential in today’s world. And tools developers use to create cloud-native applications are improving everyday. But as a developer who has had no previous experience with the cloud or containers, there were a lot of hurdles I had to overcome: The complexity of the cloud toolchain available to…