Ray Tsang | Devoxx

Ray Tsang
Ray Tsang Twitter

From Google

Ray is a Developer Advocate for the Google Cloud Platform. Ray had extensive hands on cross-industry enterprise systems integration delivery and management experiences during his time at Accenture, managed full stack application development, DevOps, and ITOps. Ray specialized in middleware, big data, and PaaS products during his time at Red Hat while contributing to open source projects, such as Infinispan. Aside from technology, Ray enjoys traveling and adventures.

Blog: https://twitter.com/saturnism

future Future, Robotique

Building a unikernel Java Application


I thought it's all about containers now - what are unikernels? Join this session to learn a bit about unikernels, what it's good at, and how to run a Java application with it!

With unikernel, you no longer need to wait for that long OS boot and initialization time, and get better-than-container level of security isolation, and resource isolation.

In this session, you'll learn about the different types of unikernels. We'll pick one, OSv unikernel, and: - Use its tool to build a Tomcat unikernel image - Use its tool to build a Spring Boot unikernel image - Running the unikernel application inside of KVM - Deploying the unikernel application to the cloud - Deploying and managing a cluster of them

agTest DevOps, Agilité, Méthodologie & Tests

Scaling with Kubernetes, Automatically! Learn Kubernetes API through writing a visualizer to an autoscaler


Kubernetes is a powerful, open source, container orchestration / cluster management tool created by Google. It drew upon all the lessons learned from a near-decade of using containers at Google. In this session, we'll look beyond container orchestration with Kubernetes, but also taking a deep dive into more advanced feature such as autoscaling. But its most powerful feature is its versatile REST API which you can use to tailor Kubernetes to your needs.

In addition to the Kubernetes Autoscaler, We'll look at: - How to access the Kubernetes API securely - The different Kubernetes resources, such as Pod, Replication Controller, Service, etc. - How to update/manage your entire cluster using the API

We'll demonstrate all of the concepts via a custom autoscaler that scales a stateful application using custom metrics, such as Infinispan!

cldops Cloud et Scaling

Hands-on with Kubernetes - from basic to advanced features

Hands-on Labs

Today's technology is moving fast towards using containers and managing a fleet of containers. This session will give hands-on experience with creating containers using Docker and deploy a fleet of containerized Java microservices into Kuberenetes. You'll get to: - Build a Java microservice - Build Docker container - Deploy the container into a private container registry - Deploy a fleet of containerized microservices - Learn service discovery - Perform rolling update, canary, and roll backs

In addition, we will also explore advanced features such as: - Secret - securely give your application the credentials and configurations - Daemon set - run the same workload across all of the cluster nodes - Persistent volume / claims - store persistent data using volume mounts in the pods - Health checks - check to see if your application is alive and ready to serve traffic - autoscaling - automatic horizontal pod scaling using CPU utilization metric