<p>Creates a layer. For more information, see <a href="https://docs.aws.amazon.com/opsworks/latest/userguide/workinglayers-basics-create.html">How to Create a Layer</a>.</p> <note> <p>You should use <b>CreateLayer</b> for noncustom layer types such as PHP App Server only if the stack does not have an existing layer of that type. A stack can have at most one instance of each noncustom layer; if you attempt to create a second instance, <b>CreateLayer</b> fails. A stack can have an arbitrary number of custom layers, so you can call <b>CreateLayer</b> as many times as you like for that layer type.</p> </note> <p> <b>Required Permissions</b>: To use this action, an IAM user must have a Manage permissions level for the stack, or an attached policy that explicitly grants permissions. For more information on user permissions, see <a href="https://docs.aws.amazon.com/opsworks/latest/userguide/opsworks-security-users.html">Managing User Permissions</a>.</p>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}