How to Install Prometheus on A2 Hosting?

9 minutes read

To install Prometheus on A2 hosting, you can follow these steps:

  1. Log in to your A2 hosting account and navigate to the cPanel dashboard.
  2. Scroll down to the "Software" section and click on the "Select PHP Version" option.
  3. Select your desired PHP version for Prometheus and click "Set as Current".
  4. Go back to the cPanel dashboard and scroll down to the "Databases" section. Click on "phpMyAdmin".
  5. In phpMyAdmin, create a new database for Prometheus by clicking on "Databases" and entering a name for your database.
  6. Once the database is created, go to the Prometheus official website ( and download the latest binary release for your operating system.
  7. Upload the Prometheus binary to your A2 hosting account using an FTP client or the cPanel file manager. Place the binary file in the desired directory.
  8. Extract the contents of the Prometheus binary by running the appropriate command for your operating system. For example, on Linux, you can use the command: tar -xvf prometheus-*.tar.gz.
  9. After extraction, navigate to the Prometheus directory using the command: cd prometheus-*.
  10. Configure Prometheus by creating a configuration file named prometheus.yml. You can copy the sample configuration provided on the Prometheus website and modify it according to your needs.
  11. Start Prometheus by running the command: ./prometheus --config.file=prometheus.yml.
  12. Prometheus should now be running, and you can access the web UI by entering the URL: in a web browser, replacing "" with your actual domain name.

Remember to configure any necessary firewall rules or security measures to ensure that Prometheus is accessible and secure on your A2 hosting account.

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How to modify Prometheus configuration on A2 hosting?

To modify Prometheus configuration on A2 Hosting, you can follow these steps:

  1. Login to your A2 Hosting account.
  2. Go to the cPanel dashboard.
  3. Navigate to the "File Manager" option under the "Files" section.
  4. In the File Manager, locate the Prometheus configuration file. This file is typically named "prometheus.yml", and it is usually located in the Prometheus installation directory.
  5. Right-click on the "prometheus.yml" file and select "Edit" or "Code Edit" from the context menu. Alternatively, you can select the file and click on the "Edit" button located in the menu bar.
  6. A text editor will open, allowing you to modify the Prometheus configuration.
  7. Make the necessary changes to the configuration file. You can add or remove target servers, define additional scrape configurations, change alert rules, etc. Refer to the Prometheus documentation for more details on the configuration options.
  8. After making the changes, save the file.
  9. Verify the modified configuration by restarting the Prometheus server. You can do this by logging into your server using SSH and executing the following command: systemctl restart prometheus If you do not have SSH access, you can try restarting Prometheus through the cPanel interface. Look for a "Services" or "Restart Services" section, and restart the Prometheus service from there.
  10. Once the Prometheus server restarts, the new configuration will be loaded, and you should see the changes taking effect.

Note: It is recommended to take a backup of the original Prometheus configuration file before making any modifications to avoid any unintended issues.

How to configure service discovery for Prometheus on A2 hosting?

To configure service discovery for Prometheus on A2 Hosting, you can follow these steps:

  1. Log in to your A2 Hosting account and navigate to the cPanel dashboard.
  2. Look for the "Software" section and click on "Select PHP Version" or "MultiPHP Manager."
  3. Make sure that you have PHP version 7.x enabled. If you don't, select a version that is 7.x or higher and click "Set as current."
  4. Go back to the cPanel dashboard and look for the "Database" section. Click on "phpMyAdmin."
  5. In phpMyAdmin, create a new database for Prometheus to store its data. To do this, click on "New" in the left sidebar, give the database a name, and click "Create."
  6. After creating the database, select it from the left sidebar, and click on the "Import" tab in the top navigation.
  7. Under the "File to import" section, click on the "Choose File" button and select the Prometheus database file. This file is usually provided by the Prometheus software and ends with .sql. Then click "Go" to import the database.
  8. Once the import is complete, you can close phpMyAdmin.
  9. Now, you need to configure your Prometheus installation to connect to the newly created database. Locate the Prometheus configuration file, which is typically named prometheus.yml.
  10. Open the prometheus.yml file in a text editor and find the db section. Enter the database details such as username, password, host (usually localhost), and database name that you created in phpMyAdmin. Save the changes to the prometheus.yml file.
  11. Upload the modified prometheus.yml file to your A2 Hosting account. You can use an FTP client or the File Manager in cPanel.
  12. Finally, test your Prometheus configuration by accessing the Prometheus dashboard using the URL provided by A2 Hosting, typically something like If everything is configured correctly, you should see the Prometheus dashboard.

That's it! You have now configured service discovery for Prometheus on A2 Hosting. Make sure to monitor your services and adjust the configuration as needed to keep track of your desired targets.

What is the recommended alert manager for Prometheus on A2 hosting?

There is no specific recommended alert manager for Prometheus on A2 Hosting as it largely depends on your specific requirements and preferences. However, some popular options that you can consider are:

  1. Prometheus Alertmanager: This is the default alert manager that comes with Prometheus. It provides functionality to handle alerts generated by Prometheus and allows you to define alert rules, manage notifications, and send alerts to various receivers.
  2. VictoriaMetrics AlertManager: VictoriaMetrics is a high-performance long-term storage solution for Prometheus. It includes an alert manager component that is compatible with Prometheus alerting system and provides similar functionality as Prometheus Alertmanager.
  3. Alerta: Alerta is an open-source alert management platform that integrates with various monitoring and alerting systems, including Prometheus. It provides a unified view for managing and responding to alerts, supports multiple notification channels, and can be easily customized and integrated with other tools.
  4. Kapacitor: Kapacitor is part of the TICK Stack (Telegraf, InfluxDB, Chronograf, Kapacitor) and provides a way to process and define alerts for metrics data. While it is not a dedicated alert manager, it can be used alongside Prometheus to handle alerts and perform actions based on defined alert rules.

Ultimately, the best alert manager for Prometheus on A2 Hosting depends on your specific needs and infrastructure setup. It is recommended to evaluate different options and choose the one that aligns with your requirements and fits well within your environment.

How to uninstall Prometheus from A2 hosting?

To uninstall Prometheus from an A2 Hosting account, you need to follow these steps:

  1. Login to your A2 Hosting control panel (cPanel) using your credentials.
  2. Once logged in, navigate to the "Software" section and click on the "Softaculous Apps Installer" icon.
  3. In the Softaculous Apps Installer interface, locate the "Website Monitoring" section and click on the "Prometheus" icon.
  4. On the next page, click on the "Remove" button located at the top right corner.
  5. A confirmation message will appear, asking you whether you really want to remove Prometheus. Click on "Remove" again to confirm.
  6. Softaculous will now proceed with the uninstallation process, and you will see a progress bar indicating the removal progress.
  7. Once the process is completed, you will see a success message confirming that Prometheus has been uninstalled from your A2 Hosting account.

Note: Uninstalling Prometheus will remove all associated data and configurations, so make sure to backup any important data before proceeding with the uninstallation process.

What is the recommended retention policy for Prometheus on A2 hosting?

The recommended retention policy for Prometheus on A2 Hosting can vary depending on your specific requirements and available resources. However, a commonly used retention policy is to store data for at least 15 days, which allows you to analyze trends and historical data effectively.

It's important to consider the storage capacity of your server and the frequency of data ingestion when determining the retention policy. If you have limited resources or generate a large volume of data, you may need to shorten the retention period to avoid overwhelming the server.

Additionally, you should evaluate your business needs and compliance requirements when deciding on a retention policy. Some industries or regulations may require longer data retention periods.

Ultimately, it is recommended to perform regular monitoring and assessment of your resources and data volume to ensure that your retention policy remains effective and scalable.

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