Originally posted on Sokube’s blog Context Thanks to the Openshift platform (OCP), thousands of companies allow their developers to build, deploy, and run applications in containers. This platform also offers advanced features such as: This platform can be hosted both on a private cloud (on-premise) and on a public cloud. It is possible to install Openshift …
Originally posted on https://en.sokube.ch/post/introduction-to-portworx Introduction to Kubernetes Storage As you may already know, Kubernetes is a free and open-source container orchestration platform. It helps you manage containerized environments and provides amazing features such as self-healing, rollout, rollbacks, auto scaling and packaging ! Storage may not be your main concern if you are running stateless workloads …
Introduction As you already know, Kubernetes is a great and popular container orchestrator. You can use its features to deploy your applications and it will take care of many things like scaling, rollouts and rollbacks or even self-healing as described below. To do so, you will write manifests in YAML format (deployments, services, configmaps etc.) …
Introduction In this article, we will see an overview of Docker Swarm and it’s concepts. Running you containers on a single host is probably good for testing and development, but in a production environment, this may not be a good idea to have a single point of failure. With Docker Swarm, you can combine multiple …
Troubleshooting See my previous article : here. POD and Container Introspection List the current pods kubectl get pods Describe pod kubectl describe pod <name> Delete pod kubectl delete pod <name> Watch nodes continuously kubectl get nodes -w Cluster Introspection Get cluster information kubectl cluster-info Get the configuration kubectl config view Get information on a node kubectl …
In this article, we will see together different ways to reduce your docker images size. Having small images will let you deploy and transfer them fast. How to select proper images DockerHub It’s important to remember that you should choose proper images before starting reducing images. If you select it on DockerHub, please check that …
Introduction As discussed several times through my articles (i.e Docker), containers are now very popular and a lot of development and programs are moved to them. You can see on this graph Docker popularity over yeards : However, in some case, using VM still makes sense ! We will try to compare both technologies and find …
Kubernetes Series : How to choose between VMs and Containers ? Read More »
Introduction In this article we will see 2 great tools I like to use. The first one is called K9S, which is a CLI that will help you to manage your Kubernets clusters. The second one is called Lens, an IDE to deal with Kubernetes clusters on a daily basis. K9S K9s provides a curses …
Introduction In this article we will see how to get logs and how to monitore a Kubernetes cluster. Troubleshooting Troubleshoot Clusters The first thing to do is to list your cluster and check if everything is registered correctly : And verify that all of the nodes you expect to see are present and that they …
Kubernetes Series : Monitoring, Logging and Debugging Read More »
Introduction In this new article we discuss about Ingresses. What is an Ingress ? An Ingress is basically the URL which will be used to reach your app. It exposes HTTP and HTTPS routes from outside the cluster to services within the cluster. Traffic routing is controlled by rules defined on the Ingress resource. internet | [ …