Docker and Kubernetes. Kubernetes and Docker.

Kubernetes has become the trending orchestration solution for containers. All big Cloud providers bet on it, and even in smaller companies, k8s (written that way as there are 8 letters between k and s) is what all the hip developers go for.
Docker is still used to build all the images, and they have made it to a commercial product used by many customers.
Kubernetes has focused on being an extensible and scalable framework, and is still growing fast; it has a credible reputation for managing data center scale with best possible control. In fact, control is IMHO the word that describes its nature best.
Docker has chosen to put user experience first: it provides rich functionality with sane defaults, but users don't have to think about it -- Docker simply and quickly does what you mean. User experience is (IMHO) Docker's core characteristics.

Docker Enterprise Edition available for IBM Z

It has been signaled earlier this year, now it has been announced: Docker Enterprise Edition is available for Z. Version 17.06.1 has now been made available, and not only is it a new version for x86, but it also supports Z as "managed-to" platform. A lot of work went into this, and this is what the journey starts with:

• the engine of Docker Enterprise Edition will run on Linux on z Systems
• Docker Trusted Registry (DTR) can handle s390x images (while DTR runs on x86)
• Docker Universal Control Plane (UCP) can manage s390x nodes (while the UCP UI runs on x86)

So what exactly do these components provide? Here are more details (and some screenshots that may show the function set much better):

Docker in the Datacenter

In this year's DockerCon back in April 2017, then-Docker CEO Ben Golub announced Docker will support the mainframe (and Power).

While technically, this is no news, it means Docker, Inc. will support s390x -- good news and another option besides distribution offerings for those looking at running Docker in production on the mainframe. More details to follow as they are announced and available.