Add fine-grained resource GenerativeSettings to DialogflowCX (#14169) (#1028)

[upstream:3ae4e9cebd0357b06a127fce8adfae5fb474b754]

Signed-off-by: Modular Magician <[email protected]>

Author: modular-magician

dialogflowcx_generative_settings_full/backing_file.tf

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+# This file has some scaffolding to make sure that names are unique and that
+# a region and zone are selected when you try to create your Terraform resources.
+
+locals {
+  name_suffix = "${random_pet.suffix.id}"
+}
+
+resource "random_pet" "suffix" {
+  length = 2
+}
+
+provider "google" {
+  region = "us-central1"
+  zone   = "us-central1-c"
+}

dialogflowcx_generative_settings_full/main.tf

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+resource "google_dialogflow_cx_agent" "agent" {
+  display_name               = "dialogflowcx-agent-${local.name_suffix}"
+  location                   = "global"
+  default_language_code      = "en"
+  time_zone                  = "America/New_York"
+  description                = "Example description."
+}
+
+resource "google_dialogflow_cx_generative_settings" "full_generative_settings" {
+  parent       = google_dialogflow_cx_agent.agent.id
+
+  fallback_settings {
+    selected_prompt = "example prompt"
+    prompt_templates {
+      display_name = "example prompt"
+      prompt_text = "example prompt text"
+      frozen = false
+    }
+  }
+
+  generative_safety_settings {
+    default_banned_phrase_match_strategy = "PARTIAL_MATCH"
+    banned_phrases {
+      text = "example text"
+      language_code = "en"
+    }
+  }
+
+  knowledge_connector_settings {
+    business = "example business"
+    agent = "example agent"
+    agent_identity = "virtual agent"
+    business_description = "a family company selling freshly roasted coffee beans"
+    agent_scope = "Example company website"
+    disable_data_store_fallback = false
+  }
+
+  language_code = "en"
+
+  llm_model_settings {
+    model = "gemini-2.0-flash-001"
+    prompt_text = "example prompt text"
+  }
+}

dialogflowcx_generative_settings_full/motd

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+===
+
+These examples use real resources that will be billed to the
+Google Cloud Platform project you use - so make sure that you
+run "terraform destroy" before quitting!
+
+===

dialogflowcx_generative_settings_full/tutorial.md

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+# Dialogflowcx Generative Settings Full - Terraform
+
+## Setup
+
+<walkthrough-author name="[email protected]" analyticsId="UA-125550242-1" tutorialName="dialogflowcx_generative_settings_full" repositoryUrl="https://github.com/terraform-google-modules/docs-examples"></walkthrough-author>
+
+Welcome to Terraform in Google Cloud Shell! We need you to let us know what project you'd like to use with Terraform.
+
+<walkthrough-project-billing-setup></walkthrough-project-billing-setup>
+
+Terraform provisions real GCP resources, so anything you create in this session will be billed against this project.
+
+## Terraforming!
+
+Let's use {{project-id}} with Terraform! Click the Cloud Shell icon below to copy the command
+to your shell, and then run it from the shell by pressing Enter/Return. Terraform will pick up
+the project name from the environment variable.
+
+```bash
+export GOOGLE_CLOUD_PROJECT={{project-id}}
+```
+
+After that, let's get Terraform started. Run the following to pull in the providers.
+
+```bash
+terraform init
+```
+
+With the providers downloaded and a project set, you're ready to use Terraform. Go ahead!
+
+```bash
+terraform apply
+```
+
+Terraform will show you what it plans to do, and prompt you to accept. Type "yes" to accept the plan.
+
+```bash
+yes
+```
+
+
+## Post-Apply
+
+### Editing your config
+
+Now you've provisioned your resources in GCP! If you run a "plan", you should see no changes needed.
+
+```bash
+terraform plan
+```
+
+So let's make a change! Try editing a number, or appending a value to the name in the editor. Then,
+run a 'plan' again.
+
+```bash
+terraform plan
+```
+
+Afterwards you can run an apply, which implicitly does a plan and shows you the intended changes
+at the 'yes' prompt.
+
+```bash
+terraform apply
+```
+
+```bash
+yes
+```
+
+## Cleanup
+
+Run the following to remove the resources Terraform provisioned:
+
+```bash
+terraform destroy
+```
+```bash
+yes
+```