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[Containers] Fix code snippets on landing page #25220

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Sep 17, 2025
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[Containers] Fix code snippets on landing page #25220

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104 changes: 51 additions & 53 deletions src/content/docs/containers/index.mdx
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Expand Up @@ -46,65 +46,63 @@ With Containers you can run:
- Existing applications and tools that have been distributed as container images

Container instances are spun up on-demand and controlled by code you write in your [Worker](/workers). Instead of chaining together API calls or writing Kubernetes operators, you just write JavaScript:

<Tabs>
<TabItem label="Worker Code">
```js
import { Container, getContainer } from "@cloudflare/containers";

export class MyContainer extends Container {
defaultPort = 4000; // Port the container is listening on
sleepAfter = "10m"; // Stop the instance if requests not sent for 10 minutes
}

async fetch(request, env) {
const { "session-id": sessionId } = await request.json();
// Get the container instance for the given session ID
const containerInstance = getContainer(env.MY_CONTAINER, sessionId)
// Pass the request to the container instance on its default port
return containerInstance.fetch(request);
}

```
</TabItem>
<TabItem label="Worker Config">
<WranglerConfig>

```json
{
"name": "container-starter",
"main": "src/index.js",
"containers": [
{
"class_name": "MyContainer",
"image": "./Dockerfile",
"instances": 5,
}
],
"durable_objects": {
"bindings": [
{
"class_name": "MyContainer",
"name": "MY_CONTAINER"
}
]
},
"migrations": [
{
"new_sqlite_classes": [
"MyContainer"
],
"tag": "v1"
```js
import { Container, getContainer } from "@cloudflare/containers";

export class MyContainer extends Container {
defaultPort = 4000; // Port the container is listening on
sleepAfter = "10m"; // Stop the instance if requests not sent for 10 minutes
}
],
}
```

</WranglerConfig>
</TabItem>
export default {
async fetch(request, env) {
const { "session-id": sessionId } = await request.json();
// Get the container instance for the given session ID
const containerInstance = getContainer(env.MY_CONTAINER, sessionId);
// Pass the request to the container instance on its default port
return containerInstance.fetch(request);
},
};
```
</TabItem>
<TabItem label="Worker Config">
<WranglerConfig>
```json
{
"name": "container-starter",
"main": "src/index.js",
"compatibility_date": "$today",
"containers": [
{
"class_name": "MyContainer",
"image": "./Dockerfile",
"max_instances": 5
}
],
"durable_objects": {
"bindings": [
{
"class_name": "MyContainer",
"name": "MY_CONTAINER"
}
]
},
"migrations": [
{
"new_sqlite_classes": ["MyContainer"],
"tag": "v1"
}
]
}
```
</WranglerConfig>
</TabItem>
</Tabs>


<LinkButton variant="primary" href="/containers/get-started/">Get started</LinkButton> <LinkButton variant="secondary" href="https://dash.cloudflare.com/?to=/:account/workers/containers">Containers dashboard</LinkButton>
<LinkButton variant="primary" href="/containers/get-started/">Get started</LinkButton> <LinkButton variant="secondary" href="https://dash.cloudflare.com/?to=/:account/workers/containers">Containers dashboard</LinkButton>

---

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