Containers

New scheduling policy for Containers to configure image and instance from Durable Objects

Containers now support the durable_object scheduling policy in public beta. This policy lets a Durable Object select the image and instance size for a Container at runtime instead of using one centrally managed configuration for the application.

Snapshot and restore Container filesystem

Containers now support snapshot APIs in public beta for saving and restoring point-in-time filesystem state. Create a snapshot first, then pass it back to start() to restore files after container sleep, restart, or handoff to another Durable Object.

Custom Container instance types no longer have a disk to memory ratio limit

Containers custom instance types no longer limit disk based on memory. Previously, a custom instance type could have a maximum of 2 GB of disk for each 1 GiB of memory. You can now allocate up to the 20 GB disk maximum to any custom instance type.

Use Cloudflare Containers with Codex via the OpenAI Agents API

The OpenAI Agents API gives your application access to Codex through an OpenAI-managed API.

Configure observability per container application

You can now configure observability for each container application when you deploy Containers with Wrangler. This lets you change logging for one container without changing the rest of your Worker.

Use FUSE in local Containers development

Miniflare now automatically grants local Containers the Docker privileges required for Filesystem in Userspace (FUSE). This applies to wrangler dev, the Cloudflare Vite plugin, and direct Miniflare use.

Use Google Artifact Registry images with Containers

Containers now support Google Artifact Registry images. After you configure credentials, you can use a fully qualified Google Artifact Registry image reference in your Wrangler configuration instead of first pushing the image to Cloudflare Registry.

exec() is now available for Containers

. Use this.ctx.container.exec() to start processes inside a running Container, stream standard input and output, inspect exit codes, and signal each process.

Billable usage and budget alerts now in product sidebars

Pay-as-you-go customers can now view billable usage and create budget alerts directly from the product overview pages for Workers & Pages, D1, R2, Workers KV, Queues, Vectorize, Durable Objects, and Containers.

Wrangler supports SSH ProxyCommand for Containers

Wrangler supports using wrangler containers ssh as an OpenSSH ProxyCommand for Containers. This lets your local SSH client connect to a running Container through Wrangler.

SSH through Wrangler is now enabled by default for Containers

. Previously, you had to set ssh.enabled to true in your Container configuration before you could connect.

Container logs page now includes relevant Worker and Durable Object logs

The Container logs page now displays related Worker and Durable Object logs alongside container logs. This co-locates all relevant log events for a container application in one place, making it easier to trace requests and debug issues.

Containers and Sandboxes are now generally available

Cloudflare Containers and Sandboxes are now generally available.

Secure credential injection and dynamic egress policies for Sandboxes

Outbound Workers for Sandboxes and Containers now support zero-trust credential injection, TLS interception, allow/deny lists, and dynamic per-instance egress policies.

Control where your Containers run with regional and jurisdictional placement

You can now specify placement constraints to control where your Containers run.

Easily connect Containers and Sandboxes to Workers

Containers and Sandboxes now support connecting directly to Workers over HTTP. This allows you to call Workers functions and bindings, like KV or R2, from within the container at specific hostnames.

Use Docker Hub images with Containers

Containers now support Docker Hub images. You can use a fully qualified Docker Hub image reference in your Wrangler configuration instead of first pushing the image to Cloudflare Registry.

SSH into running Container instances

You can now SSH into running Container instances using Wrangler. This is useful for debugging, inspecting running processes, or executing one-off commands inside a Container.

List Container instances with `wrangler containers instances`

A new wrangler containers instances command lists all instances for a given Container application. This mirrors the instances view in the Cloudflare dashboard.

Run 15x more Containers with higher resource limits

You can now run more Containers concurrently with significantly higher limits on memory, vCPU, and disk.