Set up Google Managed Prometheus to scrape external targets in a shared VPC environment

In this guide, we will walk through the steps to set up Google Managed Prometheus to scrape external targets in a shared VPC environment using self-deployed data collection. We will deploy a Flask application on a Compute Engine instance, which will generate sample metrics. These metrics will then be deployed to GMP (Google Managed Prometheus), where we will be able to visualize and analyze them.