Red Hat OpenShift might be a bit more popular than Apache Karaf. We know about 1 link to it since March 2021 and only 1 link to Apache Karaf. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Apache Karaf with OSGi works pretty nice using annotation based dependency injection with the declarative services, removing the need to mess with those hopefully archaic XML blueprints. Too bad it's not as trendy as spring and the developers so many of the tutorials can be a bit dated and hard to find. Karaf also supports many other frameworks and programming models as well and there's even Red Hat supported... Source: about 4 years ago
There is a free Openshift sandbox you can deploy here: https://developers.redhat.com/products/openshift/getting-started. Source: almost 2 years ago
Docker - Docker is an open platform that enables developers and system administrators to create distributed applications.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
Terraform - Tool for building, changing, and versioning infrastructure safely and efficiently.
rkt - App Container runtime
Packer - Packer is an open-source software for creating identical machine images from a single source configuration.