Infrastructure at your Service
By Franck Pachot . This is a little demo, easy to copy-paste, if you want to play with Kubernetes on your laptop. And, not a simple “Hello World” but a real database running here, able to scale up and down with full availability. Install Virtualbox I use Oracle VirtuaBox because I’m a big fan of Oracle products, especially when they are good and free. However, you can use Hyper-V (then just skip this paragraph and…
Once Rancher is up and running, it makes the deployment and management of Kubernetes clusters quite easy. In this post we’ll deploy a brand new cluster on top of EC2. If you want to have a simple and quick Rancher playground you can follow this post, which will give you a Rancher setup on SLES 15. If you want to have a more production like Rancher setup, you can follow these posts: Rancher, up and…
If you followed the last posts (Rancher, up and running, on EC2 – 1 – One node, Rancher, up and running, on EC2 – 2 – Three nodes and Rancher, up and running, on EC2 – 3 – Rancher setup) about Rancher, you know how to setup Rancher in a highly available RKE cluster. While this is the way to go for a production clusters, you might want to play with Rancher on a local…
The is the next post in this little Rancher series. After we installed a single node RKE cluster and extended this configurtation to three nodes we will finally install Rancher in this post.
In the last post we’ve brought up a RKE Kubernetes cluster on a single node. While that is cool for demonstration purposes or testing, this is nothing for a real life setup. Running the control pane, the etcd nodes and the worker nodes all on one node, is nothing you want to do usually, as you can not guarantee fault tolerance with such a setup. To make the RKE cluster highly available we’ll be adding…
If you want to play with Rancher you have several options, as outlined in the documentation. There are quick starts for the major public cloud providers (using Terraform), you can install it on a Linux host by using the Rancher container or you can do it on your own. We’ll be doing it step by step, as I believe that gives most information on how things actually work. We’ll start with one node and then…
Over the last years GitLab became one of the most popular and powerful open source git source code platform. From pure source code repository to a DevOps platform, it’s interesting to see how GitLab has evolved and this is reflected in the technological choices made by the technical teams. GitLab can be deployed on Cloud or On-premise environments in multiple ways; automatically (packages) manually (compile all sources)…. https://about.gitlab.com/install/ This blog post aims to explain how…
One of the most important and basic concept in Kubernetes is the Service exposition. How about exposing a Kubernetes Service deployed inside a cluster to outside traffic? Let’s have a look on the different approaches to expose a Kubernetes Service outside the cluster and particularly the role of the Ingress Controller. NodePort, Load Balancers, and Ingress Controllers In the Kubernetes world, there are three general approaches to exposing your application. NodePort A NodePort is an…
This 2020 new year began with a really exiting DevOps Event in Geneva. Kubernetes, Helm, Cloud Native, CNCF, CI/CD, Ansible, Terraform,… So much topics around DevOps that was in every people mouth. This confirm that DevOps is a good choice for any retraining 😉 This is effectively the next generation in the IT world. For this second edition, around 300 peoples were attending the event. Thanks to the organizers During the 1st day, I attended…
How can you connect an external DFC Client to docbrokers and Repositories hosted on Kubernetes Pods? That seems to be a very simple question yet it might prove difficult… Let’s talk about this challenge in this blog and possible solutions/workarounds. As you all know, Kubernetes is using containers so just like for a basic Docker container, you won’t be able to access it from the outside by default. On Docker, you will need to expose…
