![]() Also it would need a strong documentation to be built to replicate it for any other environments 2.Using Prometheus Operator This approach can be quite time consuming and take a lot of effort to deploy and manage the Prometheus ecosystem. If you’re completely comfortable with Prometheus components and its every prerequisites, you can then manually deploy YAML spec file for every component like Prometheus, Alertmanager and Grafana, all the Secrets and ConfigMaps used by Prometheus stack in right sequence by considering its inter dependency. There are three different ways to setup the Prometheus monitoring stack in Kubernetes. Service discovery: Automatically discover the targets to be monitored using familiar Kubernetes label queries without a need to learn a Prometheus specific configuration language.Įasy Configuration: Manage the configuration of the essential resources of Prometheus like versions, persistence, retention policies, and replicas from a Kubernetes resource. Once deployed, Prometheus Operator provides the following features:Īutomation: Easily launch a Prometheus instance for your Kubernetes namespace, a specific application, or a team. In simple words, Prometheus Operator is a fully automated way of deploying (like any other standard Kubernetes Deployment object) Prometheus server, Alertmanager and all the related secrets, configmap etc that will help to set up Prometheus monitoring ecosystem and instantiate Kubernetes cluster monitoring in just a few minutes. Deploy any monitoring, storage, vault solutions to Kubernetes.Backup and restoration of your application state or databases on demand.Horizontal scaling of resources according to performance metrics.Handling upgrades of your application code.Provide a great way to deploy stateful services like any database on Kubernetes.What are some use cases of Kubernetes operators? You can read more about this in the Custom Resources documentation page. These listen for changes in the custom resources owned by them (those which we have created using CRDs), and perform certain actions like creating, modifying, deleting Kubernetes resources. So, Operator is a set of Kubernetes custom controllers that we deploy in the cluster. CRDs define the structure and validation of the custom kind.Ĭustom Resource (CR) are the resources that are created by following the structure from a Custom Resource Definition (CRD).Ĭustom Controller makes sure that our Kubernetes cluster or application always matches its current state with the desired state that we expect it to. Let’s get started! What is an operator?īefore moving directly to the installation of the Prometheus using the Prometheus Operator, let’s first understand some of the key concepts needed to understand the Prometheus Operator.Ĭustom Resource Definition (CRD) resource is a way to define your own resource kind like Deployment, StatefulSet etc. In this blog post, we will focus on how we can install and manage Prometheus on the Kubernetes cluster using the Prometheus Operator and Helm in an easy way. ![]() If you’re just starting with Prometheus, I’d highly recommend reading the first two parts of the ‘Prometheus Definitive Guide’ series. In the previous post, we covered monitoring basics, including Prometheus, metrics, its most common use cases, and how to query Prometheus data using PromQL. ![]() Guest post originally published on InfraCloud’s blog by Ninad Desai, InfraCloud
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