5 posts tagged with "Sveltos"

Introduction​

It is already a year since I started getting more involved with ProjectSveltos. Over the past few months, a lot of work was put into making Sveltos not only more intuitive but also easier to use, all while preserving its core features and functionality.

This post will be split into two parts, with both sections covering the latest updates along with simple deployment examples to help you get started. So, let's dive into the world of Sveltos and explore what's new!

Introduction​

How easy is it to handle Day-2 operations with existing CI/CD tooling? Sveltos provides the ability to perform not only Day-1 operations but also helps platform administrators, tenant administrators and other operators with Day-2 operations. For example, we can use the HealthCheck and the ClusterHealthCheck features to not only watch the health of a cluster but also collect information from the managed clusters and display them in the management cluster.

In today's blog post, we will cover a way of deploying Cilium as our CNI alongside Cilium Tetragon for observability. We will then continue with a simple TracingPolicy deployment to capture socket connections and then use Sveltos to display the tracing results back to the management cluster.

The goal of the demonstration is to showcase how Sveltos can be used for different Kubernetes cluster operations based on the use case at hand.

Introduction​

In previous posts, we outlined how Sveltos allows Platform and tenant administrators to streamline Kubernetes applications and add-on deployments to a fleet of clusters. In today's blog post, we will take a step further and demonstrate how easy it is to target and update a subset of resources targeted by multiple configurations. By multiple configurations, we refer to the Sveltos ClusterProfile or Profile Custom Resource Definitions (CRDs). The demonstration focuses on day-2 operations as we provide a way to update and/or remove resources without affecting production operations.

This functionality is called tiers. Sveltos tiers provide a solution for managing the deployment priority when resources are targeted by multiple configurations. Tiers are easily integrated into existing ClusterProfile/Profile definitions alongside defining the deployment order control and straightforwardly override behaviour.

Today, we will cover the case of updating the Cilium CNI in a subnet of clusters with the label set to tier:zone2 without affecting the monitoring capabilities defined in the same ClusterProfile/Profile.

Introduction​

Have you ever wondered how to dynamically instantiate Kubernetes resources before deploying them to a cluster? What if I tell you there is an easy way to do it? Sveltos lets you define add-ons and applications using templates. Before deploying any resource down the managed clusters, Sveltos instantiates the templates using information gathered from the management cluster.

In a previous post, we outlined a step-by-step approach to forming a Cilium cluster mesh between two clusters. In today's post, we will demonstrate how the Sveltos templating is used to deploy a Cilium cluster mesh dynamically in one go.

Introduction​

In today's blog post, we will demonstrate an easy way of deploying and controlling Cilium on an EKS cluster with Sveltos.

As the majority of the documentation out there provides a step-by-step installation directly with the Helm chart commands, we decided to demonstrate a different approach, the GitOps approach, with the use of Sveltos ClusterProfile CRD (Custom Resource Definition).