CoreOS rkt or Container Linux was a rival to Docker that was acquired by Red Hat, then given to the Cloud Native Computing Foundation (CNCF). The project has since been discontinued.
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ProGet
Score 9.1 out of 10
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inedo offers ProGet, a software repository and package management solution.
CoreOS rkt is well suited for any development environment where operating systems and hardware are not homogeneous. CoreOS rkt allows us to write code on one machine with the confidence that it will work on any other. This has been immensely helpful as our developers are often switching to the latest and greatest machines and operating systems. CoreOS rkt is less suited for environments that are not Software as a Service. There is often no need to bring the entire developer environment and associated dependencies when delivering a one time product. In these environments CoreOS rkt just adds unneeded overhead.
As of current, the only artifactory management tool that I would recommend is ProGet. The free version is plentiful in features, supporting all feed types that the paid plans do. The paid plans also add even more capabilities on top of the free plan, such as data retention policies, which helps to minimize storage waste on my server and keep everything clean.
The Docker registry feature works great. Compared to Sonatype Nexus 3, I don't need to set up extra ports, as everything just works off the port ProGet itself is running on.
Debian feeds support automatic GPG key generation, without me having to create or manage them myself. This is another spot where ProGet is better than Nexus, as you have to manually create and specify a key with Nexus, while ProGet simply handles it all for you.
Docker, lxc, Ubuntu Snappy, partisan chroot+unshare Reformulating the problem and realizing a container is not necessary when a testing environment with clearly defined behavior.
Both Sonatype Nexus 3 and ProGet support all the feed types I use, but ProGet simply does them better. The Docker feeds run on the same port as ProGet itself, while Nexus requires additional ports to be set up, which can be a burden when running in Docker. Debian feeds also support GPG key creation without having to manually specify one, again, reducing the burden for me to manually do things, allowing me to set up and distribute my programs even quicker.
