How to declare or create a scheduled GCP function using serverless framework?

Question

I'm using GCP and serverless framework. And wish to create a scheduled function. For AWS lambdas i can add to the .yml:

functions:
  crawl:
    handler: crawl
    events:
      - schedule: rate(2 hours)
      - schedule: cron(0 12 * * ? *)

Seems like no such option for GCP - correct me if i'm wrong. What is the simplest way to implement it in CGP?

Answer 1

Thanks for all the responses, this is the complete solution as i see it including yaml:

In serverless.yml:

functions:
  oneMinute:
    handler: oneMinuteHandler
    events:
      - event:
          eventType: providers/cloud.pubsub/eventTypes/topic.publish
          resource: 'projects/${self:provider.project, ""}/topics/one-minute-topic'

This will also create the topic when running serverless deploy

Now all that is left is to create a scheduler:

GCP -> Cloud Scheduler -> Create Job

Target: Pub/Sub

Topic: one-minute-topic