[Cloud-native AI] Sample app failing to create ES index

[ocofaigh]

The RAG sample app is failing with:

 2025/12/04 17:29:20 Terraform apply | Error: dial tcp 166.9.58.190:32025: i/o timeout
 2025/12/04 17:29:20 Terraform apply | 
 2025/12/04 17:29:20 Terraform apply |   with module.configure_elastic_index[0].elasticstack_elasticsearch_index.sample_index,
 2025/12/04 17:29:20 Terraform apply |   on ../../modules/elastic-index/main.tf line 7, in resource "elasticstack_elasticsearch_index" "sample_index":
 2025/12/04 17:29:20 Terraform apply |    7: resource "elasticstack_elasticsearch_index" "sample_index" {

We need to investigate.