Cloudflare Developers•5mo ago

Is there a way to get a list of container instances running against the durable object?

Ppeterp Is there a way to get a list of container instances running against the durable ...

1984 Ford Laser•8/4/25, 9:45 AM

The Containers UI in the dashboard?

peterpOP•8/4/25, 9:48 AM

Oh, I mean programatically

11984 Ford Laser The Containers UI in the dashboard?

peterpOP•8/4/25, 9:49 AM

And if you are not from South Africa, I would be deeply surprised. My uncle had a Ford Laser!

1984 Ford Laser•8/4/25, 9:49 AM

Australia actually!

peterpOP•8/4/25, 9:49 AM

Ah, okay, maybe it's an Antipodean thing!

peterpOP•8/4/25, 9:50 AM

Pleasure to meet another person on the south side!

Ppeterp Oh, I mean programatically

1984 Ford Laser•8/4/25, 9:50 AM

You can pull a list of objects per DO namespace using the REST api

1984 Ford Laser•8/4/25, 9:50 AM

Lemme find the doc one sec

11984 Ford Laser You can pull a list of objects per DO namespace using the REST api

peterpOP•8/4/25, 9:51 AM

I was hoping that I could emulate this in development, but would be happy to look at that API. Thank you!

1984 Ford Laser•8/4/25, 9:51 AM

https://developers.cloudflare.com/api/resources/durable_objects/subresources/namespaces/subresources/objects/methods/list/

Uuserzach c1d1f202453d0fe81fa2838acc91e60a Thank you! Have a good day!

kian•8/4/25, 10:15 AM

It should be fixed now

Rapid•8/4/25, 9:16 PM

Is it possible to run whisper-large on a container? Is there some kind of GPU support?

kian•8/4/25, 9:18 PM

Not currently although we do have Whisper on Workers AI (https://developers.cloudflare.com/workers-ai/models/whisper-large-v3-turbo)

Rapid•8/4/25, 9:49 PM

Yeah I'm gonna use it for now, just looking on how to reduce latency on that.

Rapid•8/4/25, 9:49 PM

Even though it's probably minor if it sits in the same datacenter

Rapid•8/4/25, 9:49 PM

But still want to minimize latency to 0

adhami•8/5/25, 1:57 AM

is there a template for building (and deploying) the docker machine in github CI?

jmickelly•8/5/25, 8:13 AM

Hey, I just have a question around Cloudflare containers, does it support nested virtualization, such that it can run microVMs in the container using KVM?

McKamyk•8/6/25, 3:51 AM

Will containers sleep if there's an active websocket to them?

Yash•8/6/25, 11:54 AM

Hello Cloudflare team,
Do you have any update on when this limit will be removed and when direct public image support will be available?
This is an important feature for supporting Cloudflare containers with most images and ensuring a more scalable solution.

scotto•8/6/25, 3:44 PM

wrangler deploy from github gives 403 for the containers part, it works triggering the same npx wrangler deploy from a local machine, are we missing something in the wrangler part to avoid 403?

kian•8/6/25, 5:47 PM

Does the token you’re using have the right permissions?

《

《arin1234》•8/6/25, 6:14 PM

1984 Ford Laser•8/7/25, 5:30 AM

Anyone using Containers and can give insight into how stable they are in terms of instances not randomly shutting down for no reason? I have a use case where instances would need to stay up for around 4 hours, I know there's zero guarantee with DO/Container eviction but just curious how people are finding things before I put in the dev time to prove my concept

AAaronO What's driving the hard requirement on 4h non-stop ? Ideally it's better to have...

1984 Ford Laser•8/7/25, 6:59 AM

Event based usage where an event goes for roughly 4 hours

1984 Ford Laser•8/7/25, 7:02 AM

Just curious is anyone was seeing any consistent eviction of instances on that time frame. Containers is designed to be used for bursty workloads, but I want to make sure its suitable for my usage before getting too deep into it

fryan•8/7/25, 9:58 AM

Anyone experimenting with passing information back from the container to the overlapping Durable Object?

Ie: container processes something then stores results in DO

Tony Leung•8/7/25, 10:58 AM

does cf workers support something like worker container that start on spawn with arguments and die after finishing the job?

Manuel Ogomigo•8/7/25, 11:24 AM

Is it possible for me to run postgress on cloudflare containers?

Alexander Lewis•8/7/25, 12:00 PM

Just wondering if anyone has stumbled across this issue - Using wrangler and containers to setup a puppeteer image with devtools websocket url passed back to the requested user - Trying to get a local nodejs and php-chrome project to connect to that containers websocket but it is very hit and miss whether it connects, a lot of the time commands fail and seems the web socket drops out - Could this be a wrangler issue?

Kkian Does the token you’re using have the right permissions?

scotto•8/7/25, 12:32 PM

Not using a token, just connected the GitHub repo directly in the worker, I'm missing something ?

scotto•8/7/25, 12:33 PM

Works for any worker without container but with container we had that 403, I don't see any option to set permitimos there

McKamyk•8/7/25, 9:57 PM

when running

wrangler dev

wrangler dev

on a container DO, is the container not given a tty instance?

McKamyk•8/7/25, 10:01 PM

I'm trying to run electric-sql locally with wrangler-dev and it errors out with something that seems to resemble not having a TTY, though admittedly I'm not very erlang/elixir knowledgable. The container runs just fine when I

docker build

docker build

and

docker run

docker run

it, but fails to start in

wrangler dev

wrangler dev

. It seems to work fine when deployed

McKamyk•8/7/25, 10:02 PM

https://github.com/mckamyk/electric-wrangler

GitHub

GitHub - mckamyk/electric-wrangler

Contribute to mckamyk/electric-wrangler development by creating an account on GitHub.

gnarley_farley.•8/7/25, 11:38 PM

Hey guys has any tried to deploy a flask server to cf containers?

gnarley_farley.•8/8/25, 2:25 AM

Why do i always have 1 active instance?

gnarley_farley.•8/8/25, 2:25 AM

Can i scale down to 0

andycheng•8/8/25, 11:06 PM

Hi, when dose cf release the containers server ? Can I use containers beta in PRD environment ?

Sscotto Not using a token, just connected the GitHub repo directly in the worker, I'm mi...

kian•8/8/25, 11:19 PM

When you connect to a Git repo, it'll create an API token for you as part of that process

Ggnarley_farley.Can i scale down to 0

kian•8/8/25, 11:21 PM

Instances will scale down when they're inactive

Kkian When you connect to a Git repo, it'll create an API token for you as part of tha...

scotto•8/8/25, 11:31 PM

Then that's not working right, I connect the repo and got that error only for containers, the worker it selft deploys normally

kian•8/8/25, 11:32 PM

Have you checked the token has the Containers permission?

scotto•8/8/25, 11:40 PM

How can I check that if it's automated as far as I know

gnarley_farley.•8/9/25, 2:23 AM

Egress on containers is so expensive. All the best use cases I can think off like processing video are just totally out of reach. We did the maths on moving our ffmpeg processing to containers. Mind boggling numbers. What a pity, cloudflare has always been very generous with egress.

Samandar Turdiev•8/9/25, 4:12 AM

Hello

Samandar Turdiev•8/9/25, 4:12 AM

Can I run ffmpeg on containers?

SSamandar Turdiev Can I run ffmpeg on containers?

Isaac McFadyen•8/9/25, 5:04 AM

Yes, with some caveats that encoding video using h264/h265 can be somewhat slow even on the highest tier available currently.

Isaac McFadyen•8/9/25, 5:05 AM

But for transcoding or encoding lightweight formats like audio it runs well.

Is there a way to get a list of container instances running against the durable object?

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