Hello Aizhamal, I am working on Big Data technologies and has hands-on experience on Flink, Spark, Kafka and also did POC where I created Docker image of Fink job and ran it on K8S cluster on the local machine.
Attaching my POC project: https://github.com/sanghisha145/flink_on_k8s I really find this project " Deployment of a Flink and Spark Clusters with Portable Beam " interesting and feel that I can contribute whole-heartedly to documentation on it. Let me know where I can start? PS: I have not written any open documentation but has written many for my organization(created many technical articles on confluence page) Thanks Divya