Thursday, December 14, 2017

Openshift REST Client API written in Java

https://github.com/openshift/openshift-restclient-java/

immensely more usable than the CLI...

I ask myself who wants to learn by heart the hyper-complicated Openshift command line interface, when you can easily wrap all that crap in a nice fluent Java API....

Life is short, I am too busy, no time to learn all the freaking CLIs of the planet... please give me simple and powerful programming tools... I don't want to type any commands...

Wednesday, December 13, 2017

Excellent Docker presentation by Preethi Kasireddy

https://medium.freecodecamp.org/a-beginner-friendly-introduction-to-containers-vms-and-docker-79a9e3e119b

Where you learn:

- difference between a Container and a VM

- what is an Hypervisor (hosted or bare-metal)

- Docker Engine
- Docker client
- Docker daemon
- Dockerfile
- Docker image
- Union File Systems
- Volumes
- Containers

- Namespaces (NET, PID, MNT, UTS, IPC, USER)
- Cgroups (Control groups)
- Isolated union file systems



Great OpenShift presentation : OpenShift 3 Walkthrough




Here the code https://github.com/gshipley/openshift3mlbparks


In case you want to take the DO280 certification.... https://www.redhat.com/en/services/training/do280-red-hat-openshift-administration-i

I was able to deploy the project on Openshift Online and run it.... impressive, but the configuration effort is really huge, when compared to docker-compose....


this is older video repeating more or less same concepts




and the famous "instant gratification with Openshift"



Grant Shipley is a great guy. Here another great talk by him - more philosophical than technical