PROMETHEUS NODE EXPORTER HELM INSTALL
PROMETHEUS NODE EXPORTER HELM UPDATE
PROMETHEUS NODE EXPORTER HELM FREE

I'm going to delete the pushgateway Deployment (because we won't be using it here anyway). To see this alerting business in action, let's destroy one of our target endpoints. Once that completes, the new alert will be listed in the Prometheus UI at an alert in the Prometheus dashboard

PROMETHEUS NODE EXPORTER HELM UPDATE

Now we can update our Helm chart to use this new configuration: $ helm upgrade -f values.yaml prometheus stable/prometheus This alert will trigger if a target is down for 1 minute. We can verify our suspicion by checking the status condition of the pods: $ kubectl get pod -l app=prometheus,component=server -o jsonpath=' down'

This is (very likely) because they both require an available PersistentVolume in order to bind their PersistentVolumeClaims The Prometheus server and Alertmanager pods are just sitting there waiting to be scheduled (that is, they are Pending)! Prometheus-server-58cdb8b6b-dzfts 0/2 Pending 0 5m Prometheus-pushgateway-76dbc6588c-tnl4w 1/1 Running 0 5m Prometheus-node-exporter-w2x2p 1/1 Running 0 5m Prometheus-node-exporter-rc4cm 1/1 Running 0 5m Prometheus-node-exporter-p2q29 1/1 Running 0 5m Prometheus-node-exporter-4lmxr 1/1 Running 0 5m Prometheus-kube-state-metrics-76cd4b4cf9-7qhbh 1/1 Running 0 5m Prometheus-alertmanager-5c55869589-tb4tc 0/2 Pending 0 5m

We can do this by listng all of the pods in our current namespace: $ kubectl get pods Let's take a moment to make sure that both Prometheus and Alertmanager have successfully bound their PersistentVolumes. In this case (since we named ours “prometheus” with the -name flag), that would be $ helm status prometheus NAME REVISION UPDATED STATUS CHART APP VERSION NAMESPACE You can also retrieve this same information with helm status by first finding the name of your chart with helm list: $ helm list There will be some information about the chart along with a list of resources ( ConfigMaps, PersistentVolumeClaims, Pods, etc.) the chart has installed onto your cluster.įollowing that, there will be some help text provided by the chart authors. If you're not familiar with Helm, heads up: this command will output a wall of text!

PROMETHEUS NODE EXPORTER HELM INSTALL

Now we can install the prometheus chart with the following command: $ helm install -name promtheus stable/prometheus With that setup, let's use the stable/prometheus Helm chart.įirst, make sure you have the latest list of charts: $ helm repo update

PROMETHEUS NODE EXPORTER HELM FREE

quickly.įor a free environment that that has Kubernetes already running and helm pre-installed, see our accompanying Katacoda scenario! If you don't have Helm installed, then they have a Quickstart Guide that should get you going fairly. There are several ways to install Prometheus but we're going to assume that you have a running Kubernetes cluster and are using Helm to install your apps. In this post we're going to focus on the simple task of monitoring, and alerting on, a single metric from one application. While Prometheus can scale to handle a great deal of metrics in a variety of complex setups (see the diagram below), One of the most popular tools is Prometheus:Īn open-source systems monitoring and alerting toolkit However, failing to properly monitor the health of a cluster (and the applications it orchestrates) is just asking for trouble!įortunately, there are many tools for the job Having Kubernetes up and running is great.

Prometheus node exporter helm