Creating a function

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

By default, the CLI uses the folder specified when creating the profile. To change the default folder, use the yc config set folder-id <folder_ID> command. You can also set a different folder for any specific command 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 relevant documentation on the Terraform website or its mirror.

If you do not have Terraform yet, install it and configure the 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, go to the directory where you edited the configuration file.

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

      terraform validate
      

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

      Success! The configuration is valid.
      

   3. Run this command:

      terraform plan
      

      You will see a detailed list of resources. No changes will be made at this step. If the configuration contains any errors, Terraform will show them.

   4. Apply the changes:

      terraform apply
      

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

   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.