Helm Exporter

 

Exports helm release, chart, and version statistics in the prometheus format.

Installation

Prerequisites

• Kubernetes 1.16+
• Helm 3+

Get Repo Info

helm repo add sstarcher https://shanestarcher.com/helm-charts/
helm repo update

See helm repo for command documentation.

Install Chart

# Helm
$ helm install helm-exporter sstarcher/helm-exporter

• helm install helm-exporter sstarcher/helm-exporter will install and metrics should scrape automatically if prometheus is running
• If using Grafana you can use this Dashboard to have a list of what's running https://grafana.com/dashboards/9367

Metrics

• http://host:9571/metrics

Format

helm_chart_info{chart="ark",release="ark",version="1.2.1",latestVersion="1.2.3",appVersion="1.2.3",updated="1553201431",namespace="test"} 1
helm_chart_info{chart="cluster-autoscaler",release="cluster-autoscaler",version="0.7.0",latestVersion=7.3.2,appVersion="",updated="1553201431",namespace="other"} 4
helm_chart_info{chart="dex",release="dex",version="0.1.0",latestVersion="3.4.0",appVersion="1.2.3",updated="1553201431",namespace="test"} 1

The metric value is the helm status code. These status codes indexes do not map up directly to helm. This is so I can make the bad cases negative values.

• -1 FAILED
• 0 UNKNOWN
• 1 DEPLOYED
• 2 DELETED
• 3 SUPERSEDED
• 5 DELETING
• 6 PENDING_INSTALL
• 7 PENDING_UPGRADE
• 8 PENDING_ROLLBACK

Prior Art

• https://github.com/Kubedex/exporter

Todo

• /healthz endpoint method