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The latest News and Information on Containers, Kubernetes, Docker and related technologies.

New Vulnerability Exposes Kubernetes to Man-in-the-Middle Attacks: How to Mitigate CVE-2020-8554

A few weeks ago a solution engineer discovered a critical flaw in Kubernetes architecture and design, and announced that a “security issue was discovered with Kubernetes affecting multi-tenant clusters. If a potential attacker can already create or edit services and pods, then they may be able to intercept traffic from other pods (or nodes) in the cluster.” If a hostile user can create a ClusterIP service and set the spec.externalIP field, they can intercept traffic to that IP.

Set up K3s in High Availability using k3d

Have you ever wanted to try K3s high availability cluster “mode,” and you either did not have the minimum three “spare nodes” or the time required to set up the same amount of VMs? Then you are in for a good treat: meet k3d! If you’re not familiar with k3d, its name gives you a hint to what it’s all about: K3s in Docker.

Helm vs. Ketch when Deploying Applications

Kubernetes has become the de-facto standard for deploying microservices and containerized applications. Still, there is a learning curve for a developer to get familiar with Kubernetes concepts and objects, how to write and manage the required YAML files, etc. While there is undoubtedly value in learning these concepts and tasks, I believe there is even greater value in getting your applications deployed faster and spending more time on your application code than on infrastructure-related objects.

Using Hybrid and Multi-Cloud Service Mesh Based Applications for Distributed Deployments

Service Mesh is an emerging architecture pattern gaining traction today. Along with Kubernetes, Service Mesh can form a powerful platform which addresses the technical requirements that arise in a highly distributed environment typically found on a microservices cluster and/or service infrastructure. A Service Mesh is a dedicated infrastructure layer for facilitating service-to-service communications between microservices.

Coralogix - On-Demand Webinar: Auto Scaling a 1000 Nodes k8s Kafka & Elastic Stateful Cluster

The biggest challenge for your Kubernetes cluster is autoscaling stateful services. In this webinar, we explain how to architect a Kubernetes cluster to meet the increasing demands of your business in a stable and cost-efficient way.

Containers vs Virtual Machines (VMs)

As microservices gain in popularity, containers have become a hot topic for developers. But how do they differ from virtual machines? Will containers replace virtual machines? And when should you choose containers over virtual machines? When it comes to defining virtual machines, the name says it all – machines (servers or desktops) that have been virtualized.

New LM Container, Argus, and Kubernetes Developments

LogicMonitor recently released LM Container Argus v4 and has made monitoring Kubernetes clusters even easier. We have updated our Add Kubernetes Cluster wizard to make customization easier in the installation process. Start by going through the normal configuration settings, and then you will have the option to edit additional configuration settings to the CollectorSet Controller and Argus YAML files.

November Meetup - GitOps with Rancher Continuous Delivery

As the number of clusters under management increase, application owners and cluster operators need a programatic way to manage deploying to their clusters. Rancher Continuous Delivery allows an administrator to create groups of clusters and link them to Git repositories. This means an application owner only ever needs access to the Git repository and not the management cluster. Deployment manifests can be defined in Helm, Kustomize or K8s yaml files and can be tailored based on attributes of the target clusters.