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[Containers] Update built-in environment variables list #24104

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Jul 31, 2025
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[Containers] Update built-in environment variables list #24104

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[Containers] Update built-in environment variables list
KianNH Jul 31, 2025
e5a2f40
fix containers codeowners
KianNH Jul 31, 2025
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2 changes: 1 addition & 1 deletion .github/CODEOWNERS
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Expand Up @@ -95,7 +95,7 @@

# Developer Platform

/src/content/containers/ @mikenomitch @th0m @cloudflare/pcx-technical-writing
/src/content/docs/containers/ @mikenomitch @th0m @cloudflare/pcx-technical-writing
/src/content/release-notes/containers.yaml @mikenomitch @th0m @cloudflare/pcx-technical-writing
/src/content/docs/d1/ @elithrar @rozenmd @vy-ton @joshthoward @oxyjun @harshil1712 @cloudflare/pcx-technical-writing
/src/content/release-notes/d1.yaml @elithrar @rozenmd @vy-ton @joshthoward @oxyjun @cloudflare/pcx-technical-writing
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15 changes: 7 additions & 8 deletions src/content/docs/containers/platform-details.mdx
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Expand Up @@ -9,7 +9,6 @@ sidebar:

import { WranglerConfig } from "~/components";


## Instance Types

The memory, vCPU, and disk space for Containers are set through predefined instance types.
Expand All @@ -25,16 +24,15 @@ These are specified using the [`instance_type` property](/workers/wrangler/confi

## Limits


While in open beta, the following limits are currently in effect:

| Feature | Workers Paid |
| ------------------------------------------------- | ------------ |
| Feature | Workers Paid |
| ----------------------------------------------------- | ------------ |
| GB Memory for all concurrent live Container instances | 40GB [^1] |
| vCPU for all concurrent live Container instances | 20 [^1] |
| GB Disk for all concurrent live Container instances | 100GB [^1] |
| Image size | 2 GB |
| Total image storage per account | 50 GB [^2] |
| Image size | 2 GB |
| Total image storage per account | 50 GB [^2] |

[^1]: This limit will be raised as we continue the beta.

Expand All @@ -44,12 +42,13 @@ While in open beta, the following limits are currently in effect:

The container runtime automatically sets the following variables:

- `CLOUDFLARE_COUNTRY_A2` - a two-letter code of a country the container is placed in
- `CLOUDFLARE_APPLICATION_ID` - the ID of the Containers application
- `CLOUDFLARE_COUNTRY_A2` - the [ISO 3166-1 Alpha 2 code](https://www.iso.org/obp/ui/#search/code/) of a country the container is placed in
- `CLOUDFLARE_DEPLOYMENT_ID` - the ID of the container instance
- `CLOUDFLARE_LOCATION` - a name of a location the container is placed in
- `CLOUDFLARE_NODE_ID` - an ID of a machine the container runs on
- `CLOUDFLARE_PLACEMENT_ID` - a placement ID
- `CLOUDFLARE_REGION` - a region name
- `CLOUDFLARE_DURABLE_OBJECT_ID` - the ID of the Durable Object that the container is bound to

:::note
If you supply environment variables with the same names, supplied values will override predefined values.
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