Creating a function

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

The folder specified when creating the CLI profile is used by default. To change the default folder, use the yc config set folder-id <folder_ID> command. You can specify a different folder using the --folder-name or --folder-id parameter.

To create a function, run the command:

yc serverless function create --name=<function_name>

Result:

id: b09bhaokchn9********
folder_id: aoek49ghmknn********
created_at: "2019-06-14T10:03:37.475Z"
name: python_function
log_group_id: eolm8aoq9vcp********
http_invoke_url: https://functions.yandexcloud.net/b09bhaokchn9********
status: ACTIVE

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 documentation on the Terraform website or mirror website.

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

1. In the Terraform configuration file, define the parameters of the resources you want to create:

   resource "yandex_function" "my-function" {
     name       = "<function_name>"
     user_hash  = "<function_version_hash>"
     runtime    = "<runtime_environment>"
     entrypoint = "<entry_point>"
     memory     = "<memory_size>"
     content {
       zip_filename = "<path_to_ZIP_archive>"
     }
   }
   

   Where:

   • name: Function name.
   • user_hash: Any string to identify the function version. When the function changes, update this string, too. The function will update when this string is updated.
   • runtime: Function runtime environment.
   • entrypoint: Function name in the source code that will serve as an entry point to applications.
   • memory: Amount of memory allocated for the function, in MB.
   • content: Function source code:
     • zip_filename: Path to the ZIP archive containing the function source code and relevant dependencies.

   For more information about yandex_function properties, see this Terraform article.

2. Create the resources:

   1. In the terminal, change to the folder where you edited the configuration file.

   2. Make sure the configuration file is correct using the command:

      terraform validate
      

      If the configuration is correct, the following message is returned:

      Success! The configuration is valid.
      

   3. Run the command:

      terraform plan
      

      The terminal will display a list of resources with parameters. No changes are made at this step. If the configuration contains errors, Terraform will point them out.

   4. Apply the configuration changes:

      terraform apply
      

   5. Confirm the changes: type yes in the terminal and press Enter.

   Terraform will create all the required resources. You can check the new resources in the management console or using this CLI command:

   yc serverless function list
   

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

You can create a list of function versions using the Yandex Cloud Toolkit plugin for the IDE family on the JetBrains IntelliJ platform.