RedHat provides podman which is a whitebox reimplementation of the docker management tools. You can run docker images in podman and vice versa. both podman and docker are the low level tools to create/destroy/start/stop individual container instances on container hosting systems.
OpenShift is the RedHat packaged offering of Kubernetes - its not a reimplementation like podman is - its upstream Kube and a set of associated plugins delivered via redhat and with some redhat testing and tooling added to it. Kubernetes is one of the available container management tools in addition to the ones Jim mentioned. containers are a major shift in how software is packaged and delivered and managed in IT infrastructure - and they present a similar problem to virtualization as it became popular. basically - once you see how good it is you will very quickly find yourself having to manage hundreds of containers and you will want a container management solution of some sort just to stay sane. Kubernetes is a real PITA to get working though - it needs a bunch of plugins to provide function that it doesn't come with out of the box, and getting those plugins working by installing it yourself is not fun. You should absolutely build your own 'from scratch' Kubernetes lab if you want to run Kubernetes so you understand how all the plugins and parts work together - but I would not advocate that you run your production environment that way. If you decide to go with Kubernetes and you are a RH customer already you should seriously consider OpenShift. I might be biased however because my team is involved in delivering OpenShift for Linux on Z so I may not be a truly independent reference. :) http://www.redbooks.ibm.com/abstracts/redp5605.html?Open this one is power linux but once you have a pile of coreos images running on the hypervisor the rest of it is basically the same: http://www.redbooks.ibm.com/abstracts/redp5599.html?Open -- Jay Brenneman ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www2.marist.edu/htbin/wlvindex?LINUX-390
