Setup the collector (GCP)

On a GCP pipeline, the Snowplow Stream Collector receives events sent over HTTP(S), and writes them a raw Pub/Sub topic. From there, the data is picked up and processed by the Snowplow validation and enrichment job.

The main collector documentation describes the core concepts of how the collector works, and the configuration options when running it.

In this guide for GCP we are going to:

1. Setup the Pub/Sub topics required: A good topic for data that is successfully processed by the collector, and a bad one in case any data is not successfully processed.
2. Setup and run the collector application as a single instance VM (e.g. for a development environment)
3. Setup and run the collector as an autoscaling group of instances behind a load balancer (recommended for production)