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Installing a Grafana Dashboard for Nexus

Overview​

This installation process is for creating and installing a Nexus dashboard within Grafana for monitoring purposes.

Prerequisites​

  1. Set Up Nexus Repository Manager Monitoring

    • Ensure Nexus Repository Manager is configured to expose metrics for Prometheus.

    • Edit the nexus.properties file, typically located in the etc/ directory within your Nexus installation:

      sudo nano ./apps/nexus/nexus-data/etc/nexus.properties

      Add the following property to enable Prometheus metrics:

      nexus.prometheus.enabled=true

    • Restart Nexus for the changes to take effect:

      docker compose down && docker compose up -d

  2. Set Up Prometheus

    • Add Nexus as a target in the Prometheus configuration (prometheus.yml) by specifying its host and port:

      scrape_configs:
        - job_name: "nexus"
          static_configs:
            - targets: ["<nexus_host>:<nexus_port>"]

      Replace <nexus_host> with your Nexus server's hostname or IP address and <nexus_port> with the port where Nexus is running (default is 8081).

    • Start or restart Prometheus to begin collecting Nexus metrics.

Installation Steps​

  1. Import the Nexus Dashboard in Grafana
  • To visualize Nexus traffic in Grafana, follow these steps:
    1. Log in to your Grafana instance.
    2. Click on Create (the plus icon on the left) and select Import.
    3. Paste the dashboard ID: 16459, or use the URL: https://grafana.com/grafana/dashboards/16459-infra-nexus/.
    4. Click Load.
    5. Select your Prometheus data source, which scrapes metrics from Nexus.
    6. Click Import to add the dashboard to your Grafana instance.
  1. Monitor and Refine
  • After importing, you can monitor Nexus traffic and performance metrics through the dashboard.
  • Customize the dashboard as needed by refining queries or adding additional panels.
  • Set up alerts in Grafana based on performance thresholds or traffic conditions to get notified proactively.

You're Done​

With this setup, Grafana will now display Nexus traffic and performance data, allowing you to monitor the health and usage of your Nexus Repository Manager effectively.