[terraform][AWS] AWS terraform plan fails with ha_enabled=false

[mpagot]

ERROR:QESAPDEP:STDERR:          Error: Invalid index
ERROR:QESAPDEP:STDERR:
ERROR:QESAPDEP:STDERR:            on modules/hana_node/outputs.tf line 23, in output "hana_vip":
ERROR:QESAPDEP:STDERR:            23:   value = split("/", aws_route.hana-cluster-vip.0.destination_cidr_block)[0]
ERROR:QESAPDEP:STDERR:              ├────────────────
ERROR:QESAPDEP:STDERR:              │ aws_route.hana-cluster-vip is empty tuple

It can be reproduced using config.yaml like

provider: aws
apiver: 1
terraform:
  variables:
    aws_region: "eu-west-1"
    deployment_name: ####
    os_image: "suse-sles-sap-15-sp4-byos"
    os_owner: "amazon"
    private_key: "####"
    public_key: "####.pub"
    aws_credentials: "~/.aws/credentials"
    hana_ips: ["10.0.1.11", "10.0.2.12"]
    hana_cluster_fencing_mechanism: "sbd"
    hana_cluster_vip: "10.0.0.15"

ansible:
  hana_urls:
    - "#####"
    - "#####"
    - "#####"
  create:
    - registration.yaml -e reg_code=${REG_CODE} -e email_address=${EMAIL}
    - pre-cluster.yaml
    - sap-hana-preconfigure.yaml
    - cluster_sbd_prep.yaml
    - sap-hana-storage.yaml
    - sap-hana-download-media.yaml
    - sap-hana-install.yaml
    - sap-hana-system-replication.yaml
    - sap-hana-system-replication-hooks.yaml
    - sap-hana-cluster.yaml
  destroy:
    - deregister.yaml
  variables:
    REG_CODE: "#####"
    EMAIL: ""
    SAPCONF: true

Also consider that false is the default value in

qe-sap-deployment/terraform/aws/variables.tf

Line 312 in 9b338bc

default = false

[mpagot]

This particular config.yaml solve/hide the issue https://github.com/os-autoinst/os-autoinst-distri-opensuse/blob/master/data/sles4sap/qe_sap_deployment/qesap_aws.yaml

In particular, it has

 hana_ha_enabled: "true"

That is not the default in AWS (maybe it should be?)