How to Install Prometheus on Vultr?

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To install Prometheus on Vultr, you can follow these steps:

  1. Create a new Vultr server: Log in to your Vultr account and create a new server instance. Choose the desired server location, server type, and operating system. It is recommended to use a Linux operating system like Ubuntu or CentOS for Prometheus installation.
  2. Connect to the server: Once your server is created, connect to it using SSH. You can use tools like PuTTY (for Windows) or Terminal (for Linux and macOS). Use the server's IP address and SSH credentials to establish the connection.
  3. Update the system: Run the following command to ensure your server is up-to-date:
sudo apt update && sudo apt upgrade


sudo yum update && sudo yum upgrade

  1. Install Prometheus: Prometheus can be installed using the official release binaries or package managers like apt or yum. The official Prometheus documentation recommends using the release binaries for production use. Run the following commands to download and install Prometheus:
cd /tmp
tar xvfz prometheus-2.30.3.linux-amd64.tar.gz
cd prometheus-2.30.3.linux-amd64/

  1. Configure Prometheus: Prometheus uses a YAML configuration file to define its scrape targets, alerting rules, and other settings. Create a new configuration file using a text editor:
nano /tmp/prometheus-2.30.3.linux-amd64/prometheus.yml

Add your desired configuration, such as scrape targets for monitoring, and save the file.

  1. Test Prometheus: To ensure Prometheus is working correctly, open a web browser and access http://your-server-ip:9090. You should see the Prometheus user interface where you can execute queries, view metrics, and manage alerts.
  2. Run Prometheus as a service: Prometheus can be run as a service to ensure it starts automatically upon server boot. Depending on your Linux distribution, the process might differ slightly. For example, with systemd, you would create a unit file.
  3. Allow access to Prometheus: By default, Prometheus only allows access from the localhost. If you want to access Prometheus remotely or from other servers, you need to modify the server's firewall settings to allow incoming connections on port 9090.

Please note that these steps provide a general overview and you may need to make adjustments based on your specific server setup and requirements. It is always recommended to refer to the official Prometheus documentation for detailed information and troubleshooting guidance.

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How to install Prometheus on Vultr?

To install Prometheus on Vultr, you can follow these steps:

  1. Create a Vultr Instance: Log in to your Vultr account and click on the "Deploy" tab. Choose your preferred server location and server size. Select the operating system, such as Ubuntu or CentOS. Set a hostname for your instance and click on "Deploy Now." Wait for the instance to be deployed.
  2. Connect to your Vultr Instance: Once your instance is deployed, you can connect to it using SSH. Open your preferred SSH client and connect to the server using the provided IP address and SSH credentials.
  3. Update your Server Packages: Update your server packages to ensure you have the latest software versions. Execute the following command: sudo apt update sudo apt upgrade
  4. Download and Install Prometheus: Download the latest version of Prometheus using the following command: wget Extract the downloaded file using the tar command: tar -xvf prometheus-X.XX.X.linux-amd64.tar.gz Enter the extracted directory: cd prometheus-X.XX.X.linux-amd64 Move the necessary files to the appropriate locations: sudo cp prometheus /usr/local/bin/ sudo cp promtool /usr/local/bin/ sudo cp -r consoles /etc/prometheus/ sudo cp -r console_libraries /etc/prometheus/ Create a Prometheus configuration file: sudo nano /etc/prometheus/prometheus.yml Add your desired configuration, such as targets to scrape, alerting rules, etc. Save and exit the file.
  5. Run Prometheus: Execute the following command to start Prometheus: prometheus --config.file=/etc/prometheus/prometheus.yml Prometheus will now start running and scraping the specified targets as per your configuration.
  6. Access Prometheus Web Interface: Prometheus web interface is accessible on port 9090 by default. Open your web browser and enter the IP address of your Vultr instance followed by :9090. You should now be able to access the Prometheus UI and explore its features.

Note: Make sure to replace X.XX.X with the actual version number of Prometheus while executing commands.

How to visualize Prometheus metrics using custom dashboards in Grafana on Vultr?

To visualize Prometheus metrics using custom dashboards in Grafana on Vultr, you can follow these steps:

  1. Install Grafana on Vultr: Spin up a Vultr server and SSH into it. Update the system packages: sudo apt update. Install Grafana using apt: sudo apt install -y grafana. Start the Grafana service: sudo systemctl start grafana-server. Enable the Grafana service to start on boot: sudo systemctl enable grafana-server.
  2. Access Grafana Web UI: Open a web browser and navigate to http://your_vultr_server_IP:3000. The default credentials are admin/admin.
  3. Configure Prometheus as a data source: Log in to Grafana and go to "Configuration" > "Data Sources". Click on "Add data source" and select "Prometheus". Set the URL to your Prometheus server address, e.g., http://prometheus_server_ip:9090. Click "Save & test" to verify the connection.
  4. Create a new dashboard: Go to the Grafana dashboard by clicking on the Grafana logo on the top left. Click on the "+ Create" button and select "Dashboard" > "Add new panel". Choose a visualization type, such as a graph or table, and configure the query to select data from Prometheus. Customize the visualization by setting axes, thresholds, and other options. Click "Save" to save the dashboard and give it a name.
  5. Add Prometheus metrics to the dashboard: Click on the panel title and select "Edit". In the "Metrics" tab, enter the Prometheus query to retrieve the desired metrics data. You can use Grafana's query editor to build the query visually or manually write PromQL queries. Click "Apply" to update the panel with the new query.
  6. Customize the dashboard: Use the Grafana editing options to further customize the dashboard. Add more panels using different visualization types or queries. Adjust time ranges, templates, annotations, themes, and other settings as needed.
  7. Share and use the dashboard: Once you have customized the dashboard to your satisfaction, you can share it with others. Click on the share icon at the top of the dashboard and choose the desired sharing method (e.g., link or embedding). You can also set up alerts based on the Prometheus metrics on the dashboard.

That's it! You have now successfully visualized Prometheus metrics using custom dashboards in Grafana on Vultr. Enjoy monitoring your infrastructure and applications with Grafana's powerful visualization capabilities.

How to configure remote storage for long-term retention of Prometheus data on Vultr?

To configure remote storage for long-term retention of Prometheus data on Vultr, you can follow these steps:

  1. Set up a Vultr account: Sign up for an account on the Vultr website, if you don't already have one.
  2. Create a storage volume: Go to the Vultr dashboard and create a storage volume. Choose the desired size for your Prometheus data. Make a note of the volume or mount point you choose for future reference.
  3. Create a virtual machine: Create a virtual machine (VM) on Vultr. Choose the desired specifications (CPU, RAM, etc.) and select an appropriate operating system.
  4. Mount the storage volume: Once the VM is created, access it via SSH or the Vultr console. Install any required dependencies, such as iscsi-initiator-utils or open-iscsi, if needed. Mount the storage volume to the VM by following the Vultr documentation specific to your operating system.
  5. Configure Prometheus: On the VM, locate the Prometheus configuration file. This is typically named prometheus.yml and is located in the Prometheus installation directory. Edit this file to include the remote storage configuration. For example, to use the remote_write feature to send data to the mounted storage volume, add the following lines to the prometheus.yml file: remote_write: - url: "http://localhost:1234/receive"
  6. Restart Prometheus: Save the changes to the prometheus.yml file and restart the Prometheus service to apply the configuration changes.
  7. Verify data storage: Confirm that Prometheus is successfully writing data to the mounted storage volume by monitoring the storage usage or accessing the Prometheus web interface.

By following these steps, you can configure remote storage for long-term retention of Prometheus data on Vultr.

What is the process for troubleshooting common issues in Prometheus on Vultr?

Troubleshooting common issues in Prometheus on Vultr involves several steps. Here's a general process you can follow:

  1. Verify Prometheus configuration: Start by checking the Prometheus configuration file (prometheus.yml) for any syntax errors or misconfigurations. Pay attention to the scraping targets, alerting rules, and storage settings. You can use the Prometheus configuration checker (promtool) to validate the configuration.
  2. Check Prometheus logs: Check the Prometheus logs for any error messages or warnings that could indicate the source of the problem. Logs are usually located in the directory specified by the --storage.tsdb.path flag in the Prometheus configuration file.
  3. Verify target endpoints' availability: Ensure that the targets Prometheus is scraping (usually defined in prometheus.yml) are accessible and responding correctly. Use tools like curl or a web browser to confirm if the endpoints are reachable and if they return valid data.
  4. Ensure proper firewall configuration: Check if your Vultr firewall settings allow inbound connections to the Prometheus port (default is 9090). Ensure that the necessary ports are open and that there are no network restrictions that could be blocking communications.
  5. Monitor resource utilization: Prometheus may experience issues if it exceeds its resource limits, such as CPU or memory constraints. Monitor the resource utilization of the Prometheus instance using system monitoring tools like top. Adjust the resource limits if needed.
  6. Investigate connectivity issues: If Prometheus is unable to scrape targets, check network connectivity between Prometheus and the target endpoints. Ensure there are no network issues, DNS resolution problems, or firewall rules blocking the traffic.
  7. Check data retention and storage capacity: If Prometheus is not storing data as expected or is experiencing high disk usage, verify the storage configuration. Ensure that sufficient storage capacity is available and that the retention policies are set correctly in the configuration file.
  8. Analyze alerting rules: If Prometheus is not triggering alerts as expected, review your alerting rules defined in the configuration file. Ensure the rules are correctly specified and that the thresholds or conditions are appropriate for your environment.
  9. Consult the Prometheus community: If the troubleshooting steps above don't resolve your issue, consult the Prometheus community. Visit the Prometheus documentation, forums, or GitHub repository to search for similar issues or ask for assistance from the community.

Remember that specific issues may require additional troubleshooting steps depending on the scenario, but this process provides a good starting point for resolving common Prometheus issues on Vultr.

What is the default configuration file for Prometheus on Vultr?

There is no specific default configuration file for Prometheus on Vultr. The Prometheus server can be started with a configuration file specified by the user using the --config.file command-line flag. By default, Prometheus looks for a file named prometheus.yml in the current working directory. However, you can specify a different file by providing the absolute or relative path to the desired configuration file.

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