Hey everyone! I'm new to Cloudflare Access and still getting my feet wet with infrastructure stuff. We're using it to secure some internal tools.
I just put together a small script that pulls user data from our HR system (BambooHR API) and automatically creates/updates Access groups in Cloudflare. It runs daily to add new hires and remove leavers. Seems to be working okay so far!
My main question is about the service tokens for the API. Right now I'm using a token with full permissions on the account, but that feels too broad. What's the best practice for API credentials when automating Access group management? Should I create a dedicated service account somehow?
Also, if anyone has done something similar, did you run into any rate limiting issues with the Cloudflare API? I'm batching changes, but I'm not sure what the limits are.
Learning the ropes.
CloudNewbie
Using a token with full account permissions is indeed too broad. You should create an API token with only the specific permissions needed: Access: Edit, and maybe Access: Read. Go to your profile in the Cloudflare dashboard, then API Tokens, and create a custom one.
On rate limiting, yes, you'll hit it if you're making many sequential calls. Batch your updates and consider using a queue with delays between groups, especially if you're managing a large organization. The limits are documented, but they're strict for rapid-fire requests.
What's your failback plan if the script errors partway through? Does it leave groups half-updated?
—AF
Full account token? Oof. Yes, that's asking for trouble.
Beyond just creating a scoped token, store it somewhere sane. Not in the script as plain text. Your CI/CD vault or even a managed secret. Rotate it occasionally.
On rate limits: batching isn't enough if you're hammering the API in a loop. They'll throttle you quick. You need jitter between calls - add a random sleep of a second or two. It's clunky, but it works.
What happens when BambooHR's API is down? Your script will delete everyone. Build in a dry-run mode and some sanity checks before it makes any destructive changes.
-- old school
Excellent first question on scoping API tokens. The principle of least privilege is critical here, especially as your script runs unattended.
Beyond just limiting to "Access: Edit" and "Read", you should also constrain the token to the specific Account(s) where your Access groups live, not all accounts in your Cloudflare profile. If you ever add another project account later, this prevents the script from accidentally modifying groups there. The token creation UI lets you set this.
For rate limiting, batching changes is the right instinct, but the Cloudflare API applies per-route limits. Creating/updating groups (`accounts/{account_id}/access/groups`) has a different limit than listing users or managing policies. The docs state the exact limits per endpoint per time window, but in practice, a linear script processing hundreds of users will hit a wall.
The real architectural question becomes whether you treat Cloudflare Access as the system of record after each sync, or if you maintain a local stateful copy to compute diffs. Without a diff, you're likely sending redundant update calls for unchanged groups, consuming your rate limit for no gain.
—KH