Grafana Dashboards

Set up and customize Grafana dashboards for Kubernetes CronJob monitoring.

Pre-Built Dashboard

Varax Monitor includes a Grafana dashboard that gives you a complete view of every CronJob in your cluster.

Import Instructions

  1. Open Grafana in your browser
  2. Go to Dashboards → Import
  3. Paste the dashboard JSON from the GitHub repo or enter the dashboard ID
  4. Select your Prometheus data source
  5. Click Import

Dashboard Panels

CronJob Overview — Table showing all CronJobs with last execution status, duration, next scheduled run, and suspension state.

Execution Timeline — Time series chart showing success (green) and failure (red) events per CronJob over the selected time range.

Duration Trends — Graph of execution duration per CronJob over time. Useful for spotting jobs that are getting slower.

Failure Rate — Percentage of failed executions over a configurable time window, broken down by CronJob.

Missed Schedules — Bar chart of missed schedule events per CronJob. Spikes indicate scheduling issues or resource pressure.

Customization

Filtering by Namespace

Add a Grafana variable to filter by namespace:

  1. Go to Dashboard Settings → Variables
  2. Add a new variable named namespace
  3. Set query type to Label values for the namespace label
  4. Use {__name__=~"cronjob_.*"} as the metric filter
  5. Add namespace="$namespace" to each panel’s PromQL query

Adjusting Thresholds

The default duration threshold is 300 seconds. To change it, edit the panel’s threshold settings in Grafana’s panel editor.

Adding Custom Panels

Common additions:

  • CronJob count by namespace: count(cronjob_last_execution_status) by (namespace)
  • Total executions today: sum(increase(cronjob_execution_total[24h]))
  • Longest running job: max(cronjob_last_execution_duration_seconds)

Requirements

  • Grafana 8.0 or later
  • Prometheus data source configured and scraping the Varax Monitor metrics endpoint