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Original file line number Diff line number Diff line change
@@ -0,0 +1,131 @@
---
title: 'Run extensions using Binary Provisioning'
description: 'Learn how to run scripts that require extensions using Binary Provisioning.'
weight: 04
---

# Run extensions using Binary Provisioning

{{< admonition type="caution" >}}

This is an experimental feature. Breaking changes might occur prior to the feature being made generally available.

{{< /admonition >}}

Starting from v1.0, k6 supports automatic extension management through the Binary Provisioning feature.

When you execute tests in Grafana Cloud using `cloud run` or `cloud run --local-execution`, k6 analyzes your test script, identifies any used extensions, builds a custom binary that includes all required extensions, and runs the test with that binary. This removes the need to manually create a [custom k6 binary](https://grafana.com/docs/k6/<K6_VERSION>/extensions/#xk6-makes-custom-binaries) using `xk6` when running tests locally and streaming results to Grafana Cloud. The `archive` and `inspect` commands also support Binary Provisioning to allow creating archives for Grafana Cloud.

Binary Provisioning requires authentication with a Grafana Cloud account and must be explicitly enabled by setting the `K6_BINARY_PROVISIONING` environment variable. The feature only supports [extensions that are available in Grafana Cloud](https://grafana.com/docs/grafana-cloud/testing/k6/author-run/use-k6-extensions/#supported-extensions-in-grafana-cloud); if your test uses other extensions, you will still need to build a custom binary manually. Additionally, Binary Provisioning is not available when using `k6 run`; in those cases, a custom binary created with `xk6` is still required.

To enable the Binary Provisioning, you must set the `K6_BINARY_PROVISIONING` environment variable to `true`:

{{< code >}}

```linux
export K6_BINARY_PROVISIONING=true
```

```mac
export K6_BINARY_PROVISIONING=true
```

```windows-powershell
$Env:K6_BINARY_PROVISIONING = "true"

```

```windows
```

{{< /code >}}


To use Binary Provisioning, you must [authenticate to Grafana Cloud](https://grafana.com/docs/grafana-cloud/testing/k6/author-run/tokens-and-cli-authentication/#authenticate-with-the-login-command) using the `k6 cloud login` command:

{{< code >}}

```linux
k6 cloud login --token <API_TOKEN>
```

```mac
k6 cloud login --token <API_TOKEN>
```

```windows-powershell

```

```windows
```
Comment on lines +56 to +61
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Suggested change
```windows-powershell
```
```windows
```

Can we remove these since there are no specific commands for it?

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@heitortsergent I think there should be, because this is available for Windows users, only that I don't have a windows machine to test them


{{< /code >}}


## Example

Consider the following script that uses the [xk6-faker](https://github.com/grafana/xk6-faker) extension to create a random person name and prints it to the console:

<!-- md-k6:skip -->

```javascript
import faker from 'k6/x/faker';

export default function () {
console.log(faker.person.firstName());
}
```

You can run it locally using the following command:

{{< code >}}


```linux
k6 cloud run --local-execution faker.js
```

```mac
k6 cloud run --local-execution --quiet faker.js
```

```windows-powershell
k6.exe cloud run --local-execution --quiet faker.js

```

```windows
k6.exe cloud run --local-execution --quiet faker.js
```

{{< /code >}}

You should see an output similar to the following:


```sh
INFO[0000] The current k6 binary doesn't satisfy all dependencies, it is required to provision a custom binary. deps="k6/x/faker*"
INFO[0000] A new k6 binary has been provisioned with version(s): k6:v1.0.0 k6/x/faker:v0.4.3
time="2025-04-24T12:59:24+02:00" level=info msg=Zelma source=console


TOTAL RESULTS

EXECUTION
iteration_duration.....................: avg=759.06µs min=759.06µs med=759.06µs max=759.06µs p(90)=759.06µs p(95)=759.06µs
iterations.............................: 1 1061.414505/s

NETWORK
data_received..........................: 0 B 0 B/s
data_sent..............................: 0 B 0 B/s
```

Notice the messages indicating the Binary Provisioning feature was used, which dependencies were detected and what versions of these dependencies were used to run the test.

## Limitations

- Only extensions supported in Grafana Cloud are supported
- Output extensions are not supported
- Running scripts from stdin is not supported
- Only files with extensions `.js`, `.ts` or `.tar` can be used. Other extensions will not invoke the Binary Provisioning mechanism
Original file line number Diff line number Diff line change
@@ -0,0 +1,135 @@
---
title: 'Run extensions using Binary Provisioning'
description: 'Guide to run scripts that require extensions using Binary provisioning.'
weight: 04
---

# Run extensions using Binary Provisioning

{{< admonition type="caution" >}}

This is an experimental feature. Breaking changes might occur prior to the feature being made generally available.

{{< /admonition >}}

Starting from v1.0, k6 supports automatic extension management through the Binary Provisioning feature.

When you execute tests in Grafana Cloud using `cloud run` or `cloud run --local-execution`, k6 analyzes your test script, identifies any used extensions, builds a custom binary that includes all required extensions, and runs the test with that binary. This removes the need to manually create a [custom k6 binary](https://grafana.com/docs/k6/<K6_VERSION>/extensions/#xk6-makes-custom-binaries) using `xk6` when running tests locally and streaming results to Grafana Cloud. The `archive` and `inspect` commands also support Binary Provisioning to allow creating archives for Grafana Cloud.

Binary Provisioning requires authentication with a Grafana Cloud account and must be explicitly enabled by setting the `K6_BINARY_PROVISIONING` environment variable. The feature only supports [extensions that are available in Grafana Cloud](https://grafana.com/docs/grafana-cloud/testing/k6/author-run/use-k6-extensions/#supported-extensions-in-grafana-cloud); if your test uses other extensions, you will still need to build a custom binary manually. Additionally, Binary Provisioning is not available when using `k6 run`; in those cases, a custom binary created with `xk6` is still required.

To enable the Binary Provisioning, you must set the `K6_BINARY_PROVISIONING` environment variable to `true`:

{{< code >}}

```linux
export K6_BINARY_PROVISIONING=true
```

```mac
export K6_BINARY_PROVISIONING=true
```

```windows-powershell
$Env:K6_BINARY_PROVISIONING = "true"

```

```windows
```

{{< /code >}}


In order to use the Binary Provisioning, the user must be authenticated to Grafana Cloud. You can [authenticate](https://grafana.com/docs/grafana-cloud/testing/k6/author-run/tokens-and-cli-authentication/#authenticate-with-the-login-command) using the `k6 cloud login` command:

{{< code >}}

```linux
k6 cloud login --token <API_TOKEN>
```

```mac
k6 cloud login --token <API_TOKEN>
```

```windows-powershell

```

```windows
```

{{< /code >}}


## Example

Consider the following script that uses the [xk6-faker](https://github.com/grafana/xk6-faker) extension to create a random person name and prints it to the console:

{{< code >}}

```javascript
import faker from 'k6/x/faker';

export default function () {
console.log(faker.person.firstName());
}
```

{{< /code >}}

You can run it locally using the following command:

{{< code >}}

```linux
k6 cloud run --local-execution faker.js
```

```mac
k6 cloud run --local-execution --quiet faker.js
```

```windows-powershell
k6.exe cloud run --local-execution --quiet faker.js

```

```windows
k6.exe cloud run --local-execution --quiet faker.js
```

{{< /code >}}

You should see an output similar to the following:

{{< code >}}

```sh
INFO[0000] The current k6 binary doesn't satisfy all dependencies, it is required to provision a custom binary. deps="k6/x/faker*"
INFO[0000] A new k6 binary has been provisioned with version(s): k6:v1.0.0 k6/x/faker:v0.4.3
time="2025-04-24T12:59:24+02:00" level=info msg=Zelma source=console


TOTAL RESULTS

EXECUTION
iteration_duration.....................: avg=759.06µs min=759.06µs med=759.06µs max=759.06µs p(90)=759.06µs p(95)=759.06µs
iterations.............................: 1 1061.414505/s

NETWORK
data_received..........................: 0 B 0 B/s
data_sent..............................: 0 B 0 B/s
```

{{< /code >}}

Notice the messages indicating the Binary Provisioning feature was used, which dependencies were detected and what versions of these dependencies were used to run the test.

## Known issues and limitations

- Only extensions supported in Grafana Cloud are supported
- Output extensions are not supported
- Running scripts from stdin is not supported
- Only files with extensions `.js`, `.ts` or `.tar` can be used. Other extensions will not invoke the Binary Provisioning mechanism
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