Question

Your team maintains a Cloud Build pipeline that runs a lightweight unit-test build on every push to any branch. Separately, you need a heavier end-to-end integration suite that provisions ephemeral resources and takes about 45 minutes to run. The business requirement is that this integration suite runs automatically once every night at 02:00 against the latest commit on the main branch, without any developer having to push code or click a button. Which approach best meets this requirement?

Accepted Answer

Create a Cloud Scheduler job that publishes to a Pub/Sub topic, and configure a Cloud Build trigger of type Pub/Sub that references the main branch and runs the integration build config.

Answer

Add a branch-filter push trigger on main that runs the integration build config, relying on nightly merges to main to invoke it.

Answer

Configure a webhook trigger and call it from a developer's local cron job at 02:00 each night.

Answer

Set a timed soak duration in the existing unit-test trigger so it re-runs the integration suite every 24 hours automatically.