Creating a function version

If you do not have the Yandex Cloud CLI yet, install and initialize it.

The folder used by default is the one specified when creating the CLI profile. To change the default folder, use the yc config set folder-id <folder_ID> command. You can also specify a different folder for any command using --folder-name or --folder-id. If you access a resource by its name, the search will be limited to the default folder. If you access a resource by its ID, the search will be global, i.e., through all folders based on access permissions.

To create a function version, run this command:

yc serverless function version create \
  --function-name=my-nodejs-function \
  --runtime nodejs18 \
  --entrypoint index.handler \
  --memory 128m \
  --execution-timeout 5s \
  --source-path ./hello-js.zip

Where:

• --function-name: Name of the function whose version you want to create.
• --runtime: Runtime.
• entrypoint: Entry point in <file_name_without_extension>.<handler_name> format.
• --memory: Amount of RAM.
• --execution-timeout: Maximum function execution time before timeout.
• --source-path: ZIP archive with the function code and required dependencies.

Result:

done (1s)
id: d4evvn8obisa********
function_id: d4elpv8pft63********
created_at: "2020-08-01T19:09:19.531Z"
runtime: nodejs18
entrypoint: index.handler
resources:
  memory: "134217728"
execution_timeout: 5s
image_size: "4096"
status: ACTIVE
tags:
  - $latest
log_options:
  folder_id: b1g681qpemb4********

With Terraform, you can quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. These files store the infrastructure description written in HashiCorp Configuration Language (HCL). If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.

Terraform is distributed under the Business Source License. The Yandex Cloud provider for Terraform is distributed under the MPL-2.0 license.

For more information about the provider resources, see the relevant documentation on the Terraform website or its mirror.

If you do not have Terraform yet, install it and configure the Yandex Cloud provider.

To create a new function version:

1. Open the Terraform configuration file and change the function settings:

   • yandex_function: Description of the new function and its source code.
     • name: Function name.
     • description: Text description of the function.
     • user_hash: Any string to identify the function version. When you change the function, update this string as well. Updating this string triggers a function update.
     • runtime: Function runtime.
     • entrypoint: Function name in the source code that will serve as an entry point to applications.
     • memory: Amount of memory allocated to the function, in MB.
     • execution_timeout: Function execution timeout.
     • service_account_id: ID of the service account you want to use to invoke the function.
     • content: Function source code.
       • content.0.zip_filename: Name of the ZIP archive containing the function source code.

   Here is an example of the configuration file structure:

   resource "yandex_function" "test-function" {
       name               = "test-function"
       description        = "Test function"
       user_hash          = "first-function"
       runtime            = "nodejs18"
       entrypoint         = "main"
       memory             = "128"
       execution_timeout  = "10"
       service_account_id = "<service_account_ID>"
       content {
           zip_filename = "<path_to_ZIP_archive>"
       }
   }
   

   Note

   If you change the function name or description, the system will not create a new version.

   For more information about yandex_function resource properties, see this provider guide.

2. Validate your configuration using this command:

   terraform validate
   

   If the configuration is valid, you will get this message:

   Success! The configuration is valid.
   

3. Run this command:

   terraform plan
   

   You will see a list of resources and their properties. No changes will be made at this step. Terraform will show any errors in the configuration.

4. Apply the configuration changes:

   terraform apply
   

5. Type yes and press Enter to confirm the changes.

You can check the new version using the management console or this CLI command:

yc serverless function version list --function-name <function_name>

To create a function version, use the createVersion REST API method for the Function resource or the FunctionService/CreateVersion gRPC API call.

Request examples

To use the examples below, install cURL and authenticate with the API.

{
  "functionId": "<function_ID>",
  "runtime": "nodejs22",
  "entrypoint": "index.handler",
  "resources": {
    "memory": "134217728"
  },
  "executionTimeout": "5s",
  "versionId": "<previous_function_version_ID>"
}

Send the request by specifying the path to the previously created file with the request body:

export IAM_TOKEN=$(yc iam create-token)
curl -X POST \
  -H "Authorization: Bearer ${IAM_TOKEN}" \
  -d "@<body.json_file_path>" \
  https://serverless-functions.api.cloud.yandex.net/functions/v1/versions

Result:

{
  "done": false,
  "metadata": {
    "@type": "type.googleapis.com/yandex.cloud.serverless.functions.v1.CreateFunctionVersionMetadata",
    "functionVersionId": "d4e25m0gila4********"
  },
  "id": "d4edk0oobcc9********",
  "description": "Create function version",
  "createdAt": "2023-10-11T11:22:21.286786431Z",
  "createdBy": "ajeol2afu1js********",
  "modifiedAt": "2023-10-11T11:22:21.286786431Z"
}