Error message while deploy a composer resource (GCP) with terraform - google-cloud-platform

Question

I am having an error with a terraform code, while deploy a GCP composer resource:
google_composer_environment.composer-beta: googleapi: Error 400: Property key must be of the form section-name. The section may not contain opening square brackets, closing square brackets or hyphens, and the name may not contain a semicolon or equals sign. The entire property key may not contain periods., badRequest
The issue arises while this GCP resource is being deployed: https://www.terraform.io/docs/providers/google/r/composer_environment.html
This is my code:
Variables.tf file:
variable "composer_airflow_version" {
type = "map"
default = {
image_version="composer-1.6.1-airflow-1.10.1"
}
}
variable "composer_python_version" {
type = "map"
default = {
python_version="3"
}
}
my-composer.tf file:
resource "google_composer_environment" "composer-beta" {
provider= "google-beta"
project = "my-proyect"
name = "${var.composer_name}"
region = "${var.region}"
config {
node_count = "${var.composer_node_count}"
node_config {
zone = "${var.zone}"
machine_type = "${var.composer_machine_type}"
network = "${google_compute_network.network.self_link}"
subnetwork = "${lookup(var.vpc_subnets_01[0], "subnet_name")}"
}
software_config {
airflow_config_overrides="${var.composer_airflow_version}",
airflow_config_overrides="${var.composer_python_version}",
}
}
depends_on = [
"google_service_account.comp-py3-dev-worker",
"google_compute_subnetwork.subnetwork",
]
}
According to the error message, the root cause of the error seems be related to the software_config section in the terraform code. I understand that the variables "composer_airflow_version" and "composer_python_version" should be of type "map", therefore, I set up them as map format.
A really appreciate it, if someone could identify the cause of the error, and tell me the adjustment to apply. It is likely that I should apply a change in variables, but I don't know what it is. :-(
Thanks in advance,
Jose

Answer 1

Based on the documentations, airflow_config_overrides, pypi_packages, env_variables, image_version and python_version should be directly under software_config.
Variables.tf file:
variable "composer_airflow_version" {
default = "composer-1.6.1-airflow-1.10.1"
}
variable "composer_python_version" {
default = "3"
}
my-composer.tf file:
resource "google_composer_environment" "composer-beta" {
provider= "google-beta"
project = "my-proyect"
name = "${var.composer_name}"
region = "${var.region}"
config {
node_count = "${var.composer_node_count}"
node_config {
zone = "${var.zone}"
machine_type = "${var.composer_machine_type}"
network = "${google_compute_network.network.self_link}"
subnetwork = "${lookup(var.vpc_subnets_01[0], "subnet_name")}"
}
software_config {
image_version = "${var.composer_airflow_version}",
python_version = "${var.composer_python_version}",
}
}
depends_on = [
"google_service_account.comp-py3-dev-worker",
"google_compute_subnetwork.subnetwork",
]
}