README.md

cloudflare-gcp-firewall-update

Using a Cloud Function to automate updating a firewall with Cloudflares IPv4 addresses.

Environment variables

• key: FIREWALL
• value: Add your GCP firewall ID

Deploy

You need to create a Cloud Scheduler job that invokes the Pub/Sub trigger:

gcloud pubsub topics create cron-topic
gcloud scheduler jobs create pubsub cloudflare-update --schedule "0 0 * * *" --topic cron-topic

# Then deploy
make deploy topic=cron-topic firewall=FIREWALL_ID project=GCP_PROJECT_ID

License

Copyright (c) 2020-2024 Richard Lee. See LICENSE for details.