DevOps

Rook with Ceph doesn’t provision my Persistent Volume Claims!

Ceph installation inside Kubernetes can be provisionned using Rook. Currently doing an internship at Adaltas, I was in charge of participating in the setup of a Kubernetes (k8s) cluster. To avoid breaking anything on our production cluster, we decided to experiment the installation of a k8s cluster on 3 virtual machines (one master node n1, [...]

By |2019-09-10T07:45:18+00:00September 9th, 2019|Categories: DevOps|Tags: , , , , , |0 Comments

LXD: The Missing Piece

LXD stands for Linux Container Daemon. Yet another container technology. But LXD is very different. It stands apart from the pack. It is not necessarily better nor much faster nor more secure! But it resolves an issue that other containers doesn't. Many of us moved too fast from traditional Virtual Machines to Application containers because [...]

By |2018-12-28T14:21:04+00:00December 28th, 2018|Categories: Container, DevOps|Tags: , , |2 Comments

Monitoring a production Hadoop cluster with Kubernetes

Monitoring a production grade Hadoop cluster is a real challenge and needs to be constantly evolving. The software we use today is based on Nagios. Very efficient when it comes to the simplest surveillance, it is not able to meet the need for a more complex verification. In this article, we will propose an architecture [...]

Microsoft introduces Cloud Native Application Bundles

At DockerCon EU 2018 in Barcelona, Matt Butcher, Principal Engineer at Microsoft and inventor of Helm, introduced CNAB, Cloud Native Application Bundles, a packaging format for distributed applications, along with Duffle, a CLI tool to run these bundles. […]

By |2018-12-05T10:21:00+00:00December 4th, 2018|Categories: Container, DevOps|Tags: , , , |0 Comments

A CoreOS development cluster with Vagrant and VirtualBox

Following CoreOS’s instructions on how to set up a development environment in VirtualBox did not work out well for me. Here are the steps I followed to get Container Linux up and running with Vagrant. […]

By |2018-06-21T10:49:35+00:00June 20th, 2018|Categories: Container, DevOps|Tags: , , , |0 Comments

Data Lake ingestion best practices

Creating a Data Lake requires rigor and experience. Here are some good practices around data ingestion both for batch and stream architectures that we recommend and implement with our customers. […]

By |2018-06-18T09:29:50+00:00June 18th, 2018|Categories: Data Engineering, DevOps|Tags: , , , , , , , |1 Comment