The kube-prometheus-stack bundles the Prometheus Operator, monitors/rules, Grafana dashboards, and AlertManager needed to monitor a Kubernetes cluster. But there are customizations necessary to tailor the Helm installation for a Kubernetes cluster built using kubeadm. In this article, I will detail the necessary modifications to deploy a healthy monitoring stack on a kubeadm cluster.
If your Grafana deployment is using a sidecar to watch for new dashboards defined as a ConfigMap, then adding a dashboard is a dynamic operation that can be done without even restarting the pod. If you have deployed the Prometheus/Grafana stack with kube-prometheus-stack, then you can check for the existence of the ‘grafana-sc-dashboard’ sidecar using: … Prometheus: adding a Grafana dashboard using a ConfigMap
The kube-prometheus-stack bundles Prometheus, Grafana, and AlertManager for monitoring a Kubernetes cluster. By default, the Ingress of these services is disabled. In this article I will show you how to expose these services with NGINX Ingress either via subdomain (e.g. prometheus.my.domain) or web context (e.g. my.domain/prometheus). You would not want to expose these monitoring applications … Prometheus: exposing Prometheus/Grafana as Ingress for kube-prometheus-stack
The kube-prometheus-stack bundles the Prometheus Operator, monitors/rules, Grafana dashboards, and AlertManager needed to monitor a Kubernetes cluster. But there are customizations necessary to tailor the Helm installation for K3s, a lightweight Kubernetes installation. In this article, I will detail the necessary modifications to deploy a healthy monitoring stack on a K3s cluster.
The ElasticSearch stack (ELK) is popular open-source solution that serves as both repository and search interface for a wide range of applications including: log aggregation and analysis, analytics store, search engine, and document processing. Its standard web front-end, Kibana, is a great product for data exploration and dashboards. However, if you have multiple data sources … Grafana: Connecting to an ElasticSearch datasource
Zabbix is an open-source monitoring solution that provides metrics collection, dynamic indexes, alerting, dashboards, and an API for external integration. But graphing is arguably one Zabbix’s weak points; it still builds static images while other enterprise and consumer applications have set end users’ expectations for graph visualization and interactivity very high. Luckily, the Zabbix plugin … Grafana: Connecting to a Zabbix datasource
Grafana is an open-source visualization suite that is able to generate graphs and dashboards, in addition to alerting. It is designed to retrieve data from various backends including: Graphite, ElasticSearch, Prometheus, and Zabbix. This article will lead you through an installation of the latest stable version on Ubuntu 14.04.
Until Zabbix3, trend data was not available via the Zabbix API. This meant that you could retrieve the raw values of a key over time, but not the aggregated historical trends of that value (e.g. CPU average over 5 minute intervals). The only way to monitor trends was to look at the visual graph generated … Zabbix: Enabling API fetch of Trend data in Zabbix2