Securely Managing Genesys Cloud OAuth Secrets in Terraform State

StarAdmin · April 10, 2026, 9:00am

Securely Managing Genesys Cloud OAuth Secrets in Terraform State

What You Will Build

One sentence: You will create a Terraform module that provisions a Genesys Cloud OAuth Client and stores its secret in HashiCorp Vault (or AWS Secrets Manager) rather than the Terraform state file.
One sentence: This uses the Genesys Cloud Terraform Provider and the official HashiCorp Vault Provider.
One sentence: The tutorial covers HCL configuration, Go-based provider logic, and shell commands for verification.

Prerequisites

Genesys Cloud Account: An admin account with permissions to manage API Clients (admin:api_client:write).
HashiCorp Vault: A running Vault server (Dev mode is sufficient for testing) with a KV secrets engine enabled.
Terraform: Version 1.5 or higher.
Genesys Cloud Provider: Version 1.0 or higher.
Vault Provider: Version 4.0 or higher.
Environment Variables:
- GENESYS_CLOUD_REGION: e.g., mypurecloud.ie
- GENESYS_CLOUD_CLIENT_ID: Your service account client ID.
- GENESYS_CLOUD_CLIENT_SECRET: Your service account client secret.
- VAULT_ADDR: Address of your Vault server (e.g., http://127.0.0.1:8200).
- VAULT_TOKEN: A valid Vault token with write access to the secrets path.

Authentication Setup

Terraform requires two distinct authentication flows for this tutorial. First, you must authenticate with Genesys Cloud to provision the resource. Second, you must authenticate with HashiCorp Vault to store the resulting secret.

Genesys Cloud Authentication

The Genesys Cloud provider uses OAuth 2.0 Client Credentials flow. You must export your credentials as environment variables. Terraform reads these automatically.

export GENESYS_CLOUD_REGION="mypurecloud.ie"
export GENESYS_CLOUD_CLIENT_ID="your_genesys_client_id"
export GENESYS_CLOUD_CLIENT_SECRET="your_genesys_client_secret"

HashiCorp Vault Authentication

For this tutorial, we assume you have a root token or a token with appropriate policies.

export VAULT_ADDR="http://127.0.0.1:8200"
export VAULT_TOKEN="hvs.XXXXXXXX"

Enable KV Secrets Engine in Vault

If you do not have a KV secrets engine mounted at secret, create one. This is a one-time setup step.

vault secrets enable -path=secret kv-v2

Implementation

Step 1: Define the Terraform Providers and Variables

You need to initialize the providers. The Genesys provider handles the creation of the API Client. The Vault provider handles the storage of the secret.

Create a file named main.tf.

terraform {
  required_providers {
    genesyscloud = {
      source  = "genesys/cloud"
      version = ">= 1.0.0"
    }
    vault = {
      source  = "hashicorp/vault"
      version = ">= 4.0.0"
    }
  }
  required_version = ">= 1.5.0"
}

provider "genesyscloud" {
  # No explicit configuration needed if environment variables are set
}

provider "vault" {
  # No explicit configuration needed if VAULT_ADDR and VAULT_TOKEN are set
}

# Variable to define the scope of the new OAuth client
variable "oauth_client_name" {
  description = "The name of the OAuth Client to create in Genesys Cloud"
  type        = string
  default     = "Terraform-Managed-Client"
}

variable "oauth_client_description" {
  description = "Description for the OAuth Client"
  type        = string
  default     = "Created by Terraform for secure secret management"
}

Step 2: Create the Genesys Cloud OAuth Client

The critical challenge is that the genesyscloud_oauth_client resource generates a secret attribute. By default, Terraform writes all resource attributes to the state file. If your state file is stored in S3 or Terraform Cloud, this secret is visible to anyone with read access to the state.

To prevent this, we will create the resource but explicitly ignore changes to the secret attribute in the lifecycle block. However, ignoring it means Terraform cannot manage it. Therefore, we must read the secret immediately after creation and send it to Vault.

Note: The Genesys Cloud provider does not natively support “write-only” attributes that are automatically synced to external secrets managers. We must use a data source or a provisioner-like pattern. Since Terraform provisioners are discouraged for state management, we will use a null_resource with a local-exec provisioner to push the secret to Vault immediately after the Genesys resource is created.

Warning: local-exec runs on the machine executing Terraform. Ensure this machine is secure.

resource "genesyscloud_oauth_client" "secure_client" {
  name        = var.oauth_client_name
  description = var.oauth_client_description
  scopes = [
    "admin:api_client:write",
    "admin:api_client:read",
    "user:login"
  ]
  client_type = "confidential"
  
  # CRITICAL: Ignore the secret in state. 
  # This prevents it from being written to the .tfstate file.
  lifecycle {
    ignore_changes = [secret]
  }
}

Step 3: Push the Secret to HashiCorp Vault

We need a mechanism to read the secret from the Genesys resource and write it to Vault. The genesyscloud_oauth_client resource exposes the secret attribute in the state during the apply phase, even if we ignore changes to it later. We can reference it in a null_resource.

First, add the null_resource to main.tf.

resource "null_resource" "push_secret_to_vault" {
  depends_on = [genesyscloud_oauth_client.secure_client]

  triggers = {
    # Force re-run if client ID changes
    client_id = genesyscloud_oauth_client.secure_client.id
  }

  provisioner "local-exec" {
    command = <<EOT
      echo "Pushing secret to Vault..."
      
      # Define the path in Vault
      VAULT_PATH="secret/data/oauth/genesys/${genesyscloud_oauth_client.secure_client.id}"
      
      # Extract the secret from the Terraform state output
      # Note: This relies on the fact that the secret is available in the context of the apply
      CLIENT_SECRET="${genesyscloud_oauth_client.secure_client.secret}"
      
      # Write to Vault using the vault CLI
      vault kv put $VAULT_PATH client_id="${genesyscloud_oauth_client.secure_client.id}" client_secret="$CLIENT_SECRET"
      
      echo "Secret stored in Vault at $VAULT_PATH"
    EOT
    
    # Environment variables must be passed to the local-exec process
    environment = {
      VAULT_ADDR = var.vault_addr
      VAULT_TOKEN = var.vault_token
    }
  }
}

variable "vault_addr" {
  description = "Address of the Vault server"
  type        = string
  default     = "http://127.0.0.1:8200"
}

variable "vault_token" {
  description = "Token for Vault authentication"
  type        = string
  sensitive   = true
}

Step 4: Verify the Secret is Not in State

After applying, you can verify that the secret field is not populated in the state file for the genesyscloud_oauth_client resource.

Create a verify.sh script.

#!/bin/bash

echo "Checking Terraform State for Secrets..."

# Check if 'secret' field exists in the state file for the oauth_client resource
if grep -q "secret" terraform.tfstate; then
    echo "WARNING: The word 'secret' was found in terraform.tfstate."
    echo "Please inspect the file manually to ensure the value is not plaintext."
else
    echo "No 'secret' keyword found in state file. This is a good sign."
fi

echo ""
echo "Checking Vault for the secret..."
VAULT_PATH="secret/data/oauth/genesys/$(terraform output -raw oauth_client_id)"
vault kv get $VAULT_PATH

Complete Working Example

Below is the complete main.tf file. You can copy this into a directory, initialize Terraform, and apply.

terraform {
  required_providers {
    genesyscloud = {
      source  = "genesys/cloud"
      version = ">= 1.0.0"
    }
    vault = {
      source  = "hashicorp/vault"
      version = ">= 4.0.0"
    }
  }
  required_version = ">= 1.5.0"
}

provider "genesyscloud" {
  # Uses GENESYS_CLOUD_REGION, GENESYS_CLOUD_CLIENT_ID, GENESYS_CLOUD_CLIENT_SECRET env vars
}

provider "vault" {
  # Uses VAULT_ADDR and VAULT_TOKEN env vars
}

variable "oauth_client_name" {
  description = "The name of the OAuth Client"
  type        = string
  default     = "Terraform-Managed-Secure-Client"
}

variable "vault_addr" {
  description = "Address of the Vault server"
  type        = string
  default     = "http://127.0.0.1:8200"
}

variable "vault_token" {
  description = "Token for Vault authentication"
  type        = string
  sensitive   = true
}

# 1. Create the OAuth Client in Genesys Cloud
resource "genesyscloud_oauth_client" "secure_client" {
  name        = var.oauth_client_name
  description = "Managed by Terraform. Secret stored in Vault."
  scopes = [
    "admin:api_client:write",
    "admin:api_client:read",
    "user:login"
  ]
  client_type = "confidential"
  
  # Ignore the secret to prevent it from being stored in state
  lifecycle {
    ignore_changes = [secret]
  }
}

# 2. Output the Client ID for reference
output "oauth_client_id" {
  value       = genesyscloud_oauth_client.secure_client.id
  description = "The ID of the created OAuth Client"
}

# 3. Push the Secret to Vault
resource "null_resource" "push_secret_to_vault" {
  depends_on = [genesyscloud_oauth_client.secure_client]

  triggers = {
    # Use the ID as a trigger to ensure uniqueness
    client_id = genesyscloud_oauth_client.secure_client.id
  }

  provisioner "local-exec" {
    command = <<EOT
      echo "Storing Genesys Cloud OAuth Secret in Vault..."
      
      # Construct the Vault path
      VAULT_PATH="secret/data/oauth/genesys/${genesyscloud_oauth_client.secure_client.id}"
      
      # Get the secret value
      CLIENT_SECRET="${genesyscloud_oauth_client.secure_client.secret}"
      
      # Write to Vault
      vault kv put $VAULT_PATH client_id="${genesyscloud_oauth_client.secure_client.id}" client_secret="$CLIENT_SECRET"
      
      echo "Success: Secret stored at $VAULT_PATH"
    EOT
    
    environment = {
      VAULT_ADDR  = var.vault_addr
      VAULT_TOKEN = var.vault_token
    }
  }
}

Execution Steps

Initialize:
```
terraform init
```
Apply:
```
terraform apply -auto-approve
```
Verify State:
```
cat terraform.tfstate | jq '.resources[] | select(.type == "genesyscloud_oauth_client") | .attributes'
```
You should see that the secret attribute is either empty or not present in the JSON output. The id and name will be present.

Verify Vault:

CLIENT_ID=$(terraform output -raw oauth_client_id)
vault kv get secret/data/oauth/genesys/$CLIENT_ID

You should see the client_secret value in the Vault output.

Common Errors & Debugging

Error: 401 Unauthorized (Vault)

Cause: The VAULT_TOKEN environment variable is not set or is invalid.
Fix: Ensure you have exported the token.

echo $VAULT_TOKEN

If empty, set it:

export VAULT_TOKEN="hvs.YOUR_TOKEN"

Error: 403 Forbidden (Genesys Cloud)

Cause: The service account used for Terraform does not have admin:api_client:write scope.
Fix: Log in to Genesys Cloud Admin → Platform Services → API Clients. Edit the client used for Terraform. Add the scope admin:api_client:write.

Error: `null_resource` fails with “command not found: vault”

Cause: The local-exec provisioner runs in a restricted shell environment that may not have the vault CLI in its PATH.
Fix: Use the absolute path to the vault binary in the command block.

command = "/usr/local/bin/vault kv put ..."

Error: Secret still appears in State

Cause: The lifecycle { ignore_changes = [secret] } block is missing or malformed.
Fix: Verify the syntax in main.tf. Ensure ignore_changes is inside the lifecycle block and secret is listed.

Error: Vault KV Version Mismatch

Cause: You are using vault kv put but the secrets engine is KV v1, or vice versa.
Fix: Check your Vault mount.

vault secrets list

If it is kv (v1), use:

vault write secret/oauth/genesys/${id} client_secret="$CLIENT_SECRET"

If it is kv-v2 (v2), use:

vault kv put secret/data/oauth/genesys/${id} client_secret="$CLIENT_SECRET"

The example above assumes KV v2, which is the default for new installations.

Securely Managing Genesys Cloud OAuth Secrets in Terraform State

Securely Managing Genesys Cloud OAuth Secrets in Terraform State

What You Will Build

Prerequisites

Authentication Setup

Genesys Cloud Authentication

HashiCorp Vault Authentication

Enable KV Secrets Engine in Vault

Implementation

Step 1: Define the Terraform Providers and Variables

Step 2: Create the Genesys Cloud OAuth Client

Step 3: Push the Secret to HashiCorp Vault

Step 4: Verify the Secret is Not in State

Complete Working Example

Execution Steps

Common Errors & Debugging

Error: 401 Unauthorized (Vault)

Error: 403 Forbidden (Genesys Cloud)

Error: null_resource fails with “command not found: vault”

Error: Secret still appears in State

Error: Vault KV Version Mismatch

Official References

Error: `null_resource` fails with “command not found: vault”