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

What's new in Kubernetes 1.18?

Kubernetes 1.18 is about to be released! After the small release that was 1.17, 1.18 comes strong and packed with novelties. Where do we begin? There are new features, like the OIDC discovery for the API server and the increased support for Windows nodes, that will have a big impact on the community. We are also happy to see how some features that have been on Alpha state for too long are now being reconsidered and prepared for the spotlight, like Ingress or the API Server Network Proxy.

Overcoming DNS barriers for Kubernetes Scaling

It was a cloudy winter morning when I had arrived at the office and found, to our horror, that a Kubernetes cluster was suffering from extremely high CPU and network usage and had become almost completely non-functional. To make things worse, restarting the nodes (the go-to DevOp solution), seemed to have absolutely no effect on the issue. Something was poisoning the network and we had to find out what it was and fast.

IAM Access in Kubernetes: The AWS Security Problem

Identity and access management (IAM) in AWS is a way to grant access to AWS services and collect and transmit data and credentials. Most Kubernetes “Quick Start” guides for AWS do not adequately cover how to manage IAM access in your pods. This blog series will first go over the security issues specific to AWS IAM on Kubernetes, then compare solutions, and then we will end with a detailed walkthrough for setting up your cluster with one of those solutions.

Sysdig extends security control with VMware Tanzu Service Mesh

Sysdig is working with VMware to deliver enhanced microservice and cloud security. Leveraging the container runtime security capabilities of Sysdig Secure along with the operations and security policies of VMware Tanzu Service Mesh, built on VMware NSX, customers will be better able to accelerate Kubernetes and cloud adoption, as well as application modernization.

Enhancing Kubernetes Security with Pod Security Policies, Part 2

In Part 1 of this series, we demonstrated how to enable PSPs in Rancher, using restricted PSP policy as default. We also showed how this prevented a privileged pod from being admitted to the cluster. Enforcement capabilities of a Pod Security Policy We intentionally omitted particular details about role-based access control (RBAC) and how to link pods with specific PSPs. Let’s move on and dig in more on PSPs.

How to Efficiently Detect Domain Generation Algorithms (DGA) in Kubernetes with Calico Enterprise

2020 is predicted to be an exciting year with more organizations adopting Kubernetes than ever before. As critical workloads with sensitive data migrate to the cloud, we can expect to encounter various Advanced Persistent Threats (APT) targeting that environment.

Telstra Ventures Invests in Rancher!

Today, we announced our $40M funding round led by Telstra Ventures. We have been working with Telstra as a customer for many years. When Telstra Ventures, who was familiar with Telstra’s success in using Rancher and Kubernetes, approached us for a potential funding round, it was a no-brainer. A leading telco like Telstra exemplifies Rancher’s vision to Run Kubernetes Everywhere.

Kubernetes Master Class: Deploy WordPress and MySQL without Data Loss

Applications such as WordPress or MySQL require the use of data persistence. It is common when deploying such applications to use a HostPath volume as it is agnostic from the platform. A HostPath volume shares the filesystem of the Host within the container making the data available between pod restarts. However, it ties the data to one node only, creating a single point of failure and restricting any kind of scalability. Kubernetes is not able to schedule the application in any other node even if it is unavailable. This leads to eventual data loss.

Why We Chose k3s to Power our Kubernetes Service

This blog post is an adaptation of a talk I gave at the Cloud Native meetup in Birmingham in the UK in February 2020. It details the advantages of k3s, a lightweight Kubernetes distribution we have deployed as part of a managed Kubernetes service. Developed by Rancher Labs, k3s allows for quick deployments for testing, CI/CD runs and getting to grips with Kubernetes without having to commit to large-scale infrastructure and the costs that would bring.