I'm seeing Cloudflare Workers IP addresses being outside the range of the stated IP addresses at htt

I'm seeing Cloudflare Workers IP addresses being outside the range of the stated IP addresses at https://www.cloudflare.com/ips/. Specifically, I'm getting connections from a Cloudflare Worker at:

104.28.153.183

104.28.153.183

104.28.153.183

104.28.153.183, which is outside the range of the closest stated CIDR block on the IPs page of:

104.24.0.0/14

104.24.0.0/14

104.24.0.0/14

104.24.0.0/14. Am I on the wrong page for whitelisting Cloudflare Worker IPs?

Cloudflare

IP Ranges | Cloudflare

This page is intended to be the definitive source of Cloudflare’s current IP ranges.

Aandrewp7628 I'm seeing Cloudflare Workers IP addresses being outside the range of the stated...

Cyb3r-Jak3•12/10/23, 10:11 PM

Just curious, what makes you think that is a Cloudflare worker coming from that IP address?

CCyb3r-Jak3 Just curious, what makes you think that is a Cloudflare worker coming from that ...

andrewp7628OP•12/10/23, 10:16 PM

UFW Logs I'm monitoring on the server I'm connecting to from Cloudflare Workers. Was getting the Error: proxy request failed, cannot connect to the specified addressError: proxy request failed, cannot connect to the specified address. error, and noticed block entries originating from that IP. Whitelisting it resolved the error on "cannot connect" error on Cloudflare's end, so I'm highly confident that's coming from the worker.

Aandrewp7628 I'm seeing Cloudflare Workers IP addresses being outside the range of the stated...

Erisa•12/10/23, 10:34 PM

104.24.0.0/14 covers 104.24.0.1 to 104.27.255.254, which does not include 104.28.153.183

I looked up the IP and its apparently used for WARP egress, which doesn't really align with what you saw. Are you able to check it again to make sure and, although it can be spoofed over warp, are you able to log any headers like cf-connecting-ipcf-connecting-ip or cf-workercf-worker coming from it?

Erisa•12/10/23, 10:35 PM

For what its worth this isnt the first time someones mentioned that range, its adjacent to a warp range so theres a lot of people thinking those IPs are meant to be proxy egress

lukas•12/11/23, 4:59 AM

How long before a worker goes to sleep after the last request?

Llukas How long before a worker goes to sleep after the last request?

Unsmart•12/11/23, 5:03 AM

You can only run background tasks if you use context.waitUntil and those can run for 30 seconds at most if thats what you really want to know.

UUnsmart You can only run background tasks if you use context.waitUntil and those can run...

lukas•12/11/23, 5:19 AM

Gotcha, i was just curious if you can have a local cache (new Map) in the worker and i thought if it stays up for x seconds before going to sleep, then the subsequent requests can use that cache

KKlowner Is there something else in your script performing fetches to external services o...

anurag•12/11/23, 5:22 AM

I tried with this. I was still getting the error.

export default {
  fetch() { return new Response("foo") }
}

export default {
  fetch() { return new Response("foo") }
}

masd4•12/11/23, 7:32 AM

The Durable Objects pricing page says "Once the data is removed, the object will be cleaned up automatically by the system.". When can we expect that to happen? I have durable objects that had no data for a week and they are still visible in the API.

Mmasd4 The Durable Objects pricing page says "Once the data is removed, the object will...

DaniFoldi•12/11/23, 8:01 AM

yeah I don't think they actually get cleaned up, or not very often - I've seen some objects retained for months, but haven't checked for a while now

DDaniFoldi yeah I don't think they actually get cleaned up, or not very often - I've seen s...

masd4•12/11/23, 8:17 AM

hmm interesting, maybe they only start cleaning up when it goes into huge numbers because right now I'm only testing with a few entries

Jan Piotrowski (janpio)•12/11/23, 9:31 AM

The worker size limit is documented as "10MB in size after compression" (for paid accounts): https://developers.cloudflare.com/workers/platform/limits/#worker-size
I know from some other places this refers to gzip compression. Does anyone know which compression level is used?
(Reference https://nodejs.org/api/zlib.html#class-options:~:text=zlib.constants.Z_VERSION_ERROR-,Compression%20levels.,-zlib.constants.Z_NO_COMPRESSION)

JJan Piotrowski (janpio)The worker size limit is documented as "10MB in size after compression" (for pai...

DaniFoldi•12/11/23, 10:07 AM

Interestingly I was never worried enough about the bundle size to check, but here's how wrangler calculates the size shown after deploying: https://github.com/cloudflare/workers-sdk/blob/96faca45733b90ca5b5b2a308c85e2dadeb1c6bf/packages/wrangler/src/deployment-bundle/bundle-reporter.ts#L11-L18

Looks like it's using whatever the defaults are, and I'd assume so is the internal storage

DDaniFoldi Interestingly I was never worried enough about the bundle size to check, but her...

Jan Piotrowski (janpio)•12/11/23, 10:08 AM

Thanks, the wrangler code I also checked - but how certain are you this is also how "server" side calculates and validates?

JJan Piotrowski (janpio)Thanks, the wrangler code I also checked - but how certain are you this is also ...

DaniFoldi•12/11/23, 10:10 AM

I don't recall any issues where wrangler says it's <1mb but fails to upload, and there are no open github issues for this matter either, so statistically I'd say it's probably the case, although I have no insight into the internal mechanism and could be the case that everyone just got lucky with their worker size meowshrug

dave•12/11/23, 1:44 PM

Is Edit Cloudflare Workers for dave-workerEdit Cloudflare Workers for dave-worker something that Cloudflare auto-created for a Worker?

dave•12/11/23, 1:45 PM

I can't figure out why this token exists.

Ddave Is `Edit Cloudflare Workers for dave-worker` something that Cloudflare auto-crea...

DaniFoldi•12/11/23, 4:22 PM

Hmm, I have one called Edit Cloudflare WorkersEdit Cloudflare Workers (no worker name suffix) that I don't recall creating either

DDaniFoldi Hmm, I have one called `Edit Cloudflare Workers` (no worker name suffix) that I ...

Chaika•12/11/23, 4:25 PM

If you create one from the Edit Cloudflare Workers template, it's named that

CChaika If you create one from the Edit Cloudflare Workers template, it's named that

DaniFoldi•12/11/23, 4:26 PM

TIL, thanks MeowHeartCloudflare

CChaika If you create one from the Edit Cloudflare Workers template, it's named that

dave•12/11/23, 4:26 PM

what's it used for?

Chaika•12/11/23, 4:27 PM

Not sure about your case lol. I would assume Dani just created one from the template and didn't edit the name though as that's the exact name it gets for that

dave•12/11/23, 4:27 PM

What is the edit workers template?

Chaika•12/11/23, 4:27 PM

Template for permissions for an API Token

Chaika•12/11/23, 4:27 PM

When you go to create a token, you can pick a permissions template

Chaika•12/11/23, 4:27 PM

Chaika•12/11/23, 4:28 PM

If you use the Edit Cloudflare Worker Template it defaults to the template name

dave•12/11/23, 4:28 PM

ahhh

dave•12/11/23, 4:28 PM

I'll basically remove all permissions and see if anything breaks I guess lol

alex•12/11/23, 9:32 PM

anyone using go built to wasm with workers? it's mentioned that you can in the docs but no example

alex•12/11/23, 9:32 PM

https://github.com/syumai/workers ?

kian•12/11/23, 9:42 PM

Rust is the most popular choice, Go tends to require tinygo

Crazy Diamond•12/11/23, 10:12 PM

Hey, I have a quick question, the Workers AI thingy says that there's a waitlist for production scale Workers AI.
What would the difference be? Will "basic" Workers AI stay free?

Unsmart•12/12/23, 3:58 AM

https://www.cloudflarestatus.com/incidents/m6y3t8mxy1c7

Cloudflare Workers Issues

kian•12/12/23, 11:20 AM

It depends on the exact issue but it’s very unlikely that your plan would stop you from being impacted.

Constantin•12/12/23, 12:51 PM

how can i store env variables in wrangler.json, under what key name?

kian•12/12/23, 1:00 PM

It's identical to Wrangler.toml, so varsvars

DDeclan I would like to use hibernating web sockets in DO, however, I need to be able to...

Unsmart•12/12/23, 3:44 PM

https://developers.cloudflare.com/durable-objects/api/websockets/#serializeattachment

WebSockets · Cloudflare Durable Objects docs

WebSockets are long-lived TCP connections that enable bi-directional, real-time communication between client and server.

FilterUnfiltered•12/12/23, 3:48 PM

is workers not meant to host entire sites?

kian•12/12/23, 3:49 PM

Workers Sites and Pages both are Workers but they store the site pages and assets in KV

kian•12/12/23, 3:49 PM

You could also do Server Side Rendering.

FilterUnfiltered•12/12/23, 3:50 PM

I mostly meant that you guys have pages for sites, but I feel like workers is the same thing but at a smaller scale. The reason I asked is because I wanted to use pages with rust but rust only seems to be supported on regular workers

Unsmart•12/12/23, 3:51 PM

pages is a worker it just has some extra things like git integration and is more opinionated

Isaac McFadyen•12/12/23, 4:15 PM

If you wanted to host a site with Rust you'd need to manually upload and store the assets in KV yourself and then use a Rust worker - the Worker is limited to 10MBs of assets total (after gzip).

UUnsmart pages is a worker it just has some extra things like git integration and is more...

Hello, I’m Allie!•12/12/23, 4:25 PM

And minus support for any non-fetch handlers

Mr.Manager•12/12/23, 4:51 PM

can anyone the me about the cdn work with compatibility with backblaze

I'm seeing Cloudflare Workers IP addresses being outside the range of the stated IP addresses at htt

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