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How to create and deploy a function with the Scaleway CLI

Scaleway Command Line Interface Overview

The Scaleway Command Line Interface (CLI) allows you to pilot your Scaleway infrastructure directly from your terminal, providing a faster way to administer and monitor your resources. Scaleway CLI is easy to set up and use, and an essential tool for operating efficiently in your cloud environment. The CLI provides many functionalities, including the ability to create and deploy Serverless Functions.

Before you start

To complete the actions presented below, you must have:

Creating a function

  1. Run the following command in your terminal to create a functions namespace:

    scw function namespace create name=<YOUR_NAMESPACE_NAME>

    An output similar to the following displays:

    ID                   6e74dbb7-9323-46bb-abc7-5c0105f4e70e
    Name                 <YOUR_NAMESPACE_NAME>
    OrganizationID       55e28409-776f-4f65-a41e-6c5fc58b4076
    ProjectID            55e28409-776f-4f65-a41e-6c5fc58b4076
    Status               pending
    RegistryNamespaceID  -
    RegistryEndpoint     -
    Description          -
    Region               fr-par
  2. Run the following command in your terminal to create a function:

    scw function function create name=<FUNCTION_NAME> namespace-id=<NAMESPACE_ID> runtime=<YOUR_RUNTIME>

    An output similar to the following displays:

    ID              717fb5f9-95c3-4c0b-84db-2321283e46dc
    Name            <FUNCTION_NAME>
    NamespaceID     cee31af8-d43e-4078-8f55-c921a9311f47
    Status          created
    MinScale        0
    MaxScale        5
    Runtime         python310
    MemoryLimit     256
    CPULimit        140
    Timeout         5 minutes
    Handler         handler.handle
    Privacy         public
    Description     -
    DomainName      namespace0leshy-cli-fn-functionname.functions.fnc.fr-par.scw.cloud
    Region          fr-par
    HTTPOption      enabled
    RuntimeMessage  -
    Tip

    Refer to this page to see all the available runtimes.

  3. Create a zip file containing your function's code by following this procedure.

    Note

    For testing purposes, you can create a zip archive with a simple Python file named handler.py inside, that contains the following code:

    def handle(event, context):
    return {
        "body": {
            "message": 'Hello, world',
        },
        "statusCode": 200,
    }

Deploying a function

  1. Run the following command to deploy your function with the zip archive you just created:

    scw function deploy name=<FUNCTION_NAME> namespace-id=<NAMESPACE_ID> runtime=<YOUR_RUNTIME> zip-file=path/to/archive/<ZIP_FILE>

    The deployment process can take up to three minutes.

  2. Run the following command to call your function:

    curl <YOUR_FUNCTION_ENDPOINT>

    Your function is now deployed and ready to be used.

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