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Cloudflare Developers

Welcome to the official Cloudflare Developers server. Here you can ask for help and stay updated with the latest news

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workers-help

pages-help

general-help

durable-objects

workers-and-pages-discussions

pages-discussions

wrangler

coding-help

🦀rust-on-workers

miniflare

stream

general-discussions

functions

zaraz

⚡instant-logs

email-routing

pubsub-beta

analytics-engine

d1-database

queues

workers-for-platforms

workerd-runtime

web3

🤖turnstile

radar

web-research

logs-engine

cloudflare-go

terraform-provider-cloudflare

workers-ai

browser-rendering-api

logs-and-analytics

next-on-pages

cloudflare-ai

build-caching-beta

hyperdrive

vectorize

ai-gateway

python-workers-beta

vitest-integration-beta

workers-observability

workflows

vite-plugin

pipelines-beta

containers-beta

kian

8/14/2025

gruntlord is right - that Wrangler

gruntlord is right - that Wrangler version is older than when the Containers scope was added to the login command

gruntlord6

8/13/2025

make sure you have the latest wrangler

make sure you have the latest wrangler version, I had some weird permission errors on older versions

Codename_404

8/1/2025

So it will also charge for DO IO, as

So it will also charge for DO IO, as well as CPU time? of so it should be very expensive for large project, right?...

kian

7/31/2025

Can’t you use ENV?

Alexander

7/30/2025

Hey 🙂 If you accept feature requests

Hey 🙂 If you accept feature requests here - Windows support for containers local dev would be great! I tried running through WSL but the install / startup time was so slow I couldn't launch the dev server

Alexander

7/26/2025

Anyone else hitting `AssertionError:

Anyone else hitting AssertionError: Build ID should be set if containers are defined and enabled when running integration tests with containers enabled?

FrozenFire

7/25/2025

Env Vars and Secrets

https://developers.cloudflare.com/containers/examples/env-vars-and-secrets/#using-envvars-on-the-container-class I get env is not defined in the worker logs when I use this...

Aster

7/21/2025

Hey hey, I am trying to run k3 in a

Hey hey, I am trying to run k3 in a container, with the following: ```Dockerfile syntax=docker/dockerfile:1 FROM rancher/k3s:latest...

peterp

7/21/2025

During development has anyone been able

During development has anyone been able to get EXPOSE working for multiple ports?

iddogino

7/14/2025

@Mike Nomitch any news on the geographic

@Mike Nomitch | Workers PM any news on the geographic placement issue you mentioned a couple of weeks back? I'm based in SF and getting almost exlusively Asia containers

Alexander

7/10/2025

Hey, is there a way to run integration

Hey, is there a way to run integration tests using a Container DO? I've tried setting it up but keep running into Error: Container is not enabled for this durable object class. Have you correctly setup your wrangler.toml?...

sampotter

7/9/2025

Container eviction

Anybody elses containers being consistently being evicted after approx 2 minutes? I'm starting up a container manually using the start method so that I can provide a JOB_ID environment variable to the container. The job starts up and begins processing for roughly 2 minutes before dying? Is this normal? Btw I'm setting the sleepAfter option to 24h

downeydabber

7/9/2025

Has anyone had success with containers

Has anyone had success with containers on ARM based macs? getting container errors on both base OS and in a devcontainer on mac. Everything seems to be configured correctly but can't get it to fetch properly. Even the cloudflare examples don't seem to be working. Haven't tested on an x86 machine yet

Yash

7/3/2025

Hello ,

Hello , I’ve spent the past 4–5 days exploring Cloudflare Containers. While the idea is impressive—especially for someone like me who runs multiple services on AWS and Azure containers—the platform is still in beta and lacks maturity. There are too many limitations right now for production use. After trying to make it work, I realized I was spending more time troubleshooting than building. So I’ve decided to put it on hold for now and focus on actual development work. ...

Shawn

7/2/2025

Hey guys, this may be a noob question,

Hey guys, this may be a noob question, but is CF containers strictly serverless? Can we host long running services like FastAPI / ARQ similar to how it works in k8s? Cost is a not of concern here. Just had enough dealing with AKS

goofysystem

7/2/2025

I'm getting this after manually deleting

I'm getting this after manually deleting container and associated DO from workers dashboard ``` Cannot create binding for class 'RustTaskContainer' because it is not currently configured to implement Durable Objects. Ensure a --new-class migration has been applied to it. [code: 10061] ...

Yash

7/2/2025

Is there a way to keep at least one

Is there a way to keep at least one minimum instance running to avoid cold start delays?

Beefp

7/2/2025

Anyone seen this before when pushing

Anyone seen this before when pushing their image? ```npx wrangler@latest containers images list ⛅️ wrangler 4.22.0...

ldl

7/2/2025

What's going on? The container doesn't

What's going on? The container doesn't even have any log information.

Beny

7/2/2025

Found a bug when using `--dry-run`

Found a bug when using --dry-run option on a container project it doesn't seem to work correctly. It gets an error connecting to the Cloudflare API during the buildAndMaybePush stage. ``` ⛅️ wrangler 4.22.0 ─────────────────── Total Upload: 109.46 KiB / gzip: 26.51 KiB...

Gaming

Programming

Cloudflare Developers

Welcome to the official Cloudflare Developers server. Here you can ask for help and stay updated with the latest news

Cloudflare Developers

Welcome to the official Cloudflare Developers server. Here you can ask for help and stay updated with the latest news