How to fix Azure Kubernetes Services with Terraform 'error dial tcp 127.0.0.1:80: connect: connection refused'?

Question

What is the cause of 'terraform apply' giving me the error below on my local machine? It seems to run fine on the build server.

I've also checked the related stackoverflow messages:

• Windows Firewall is disabled, thus 80 is allowed on the private network
• config_path in AKS is not used, no kubeconfig seems to be configured anywhere

Plan: 3 to add, 0 to change, 0 to destroy.

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kubernetes_namespace.azurevotefront-namespace: Creating...
kubernetes_service.azurevotefront-metadata: Creating...
kubernetes_deployment.azurevotefront-namespace: Creating...
╷
│ Error: Post "http://localhost/api/v1/namespaces": dial tcp 127.0.0.1:80: connect: connection refused   
│
│   with kubernetes_namespace.azurevotefront-namespace,
│   on kubernetes.tf line 1, in resource "kubernetes_namespace" "azurevotefront-namespace":
│    1: resource "kubernetes_namespace" "azurevotefront-namespace" {
│
╵
╷
│ Error: Failed to create deployment: Post "http://localhost/apis/apps/v1/namespaces/azurevotefront-namespace/deployments": dial tcp 127.0.0.1:80: connect: connection refused
│
│   with kubernetes_deployment.azurevotefront-namespace,
│   on main.tf line 1, in resource "kubernetes_deployment" "azurevotefront-namespace":
│    1: resource "kubernetes_deployment" "azurevotefront-namespace" {
│
╵
╷
│ Error: Post "http://localhost/api/v1/namespaces/azurevotefront-namespace/services": dial tcp 127.0.0.1:80: connect: connection refused
│
│   with kubernetes_service.azurevotefront-metadata,
│   on main.tf line 47, in resource "kubernetes_service" "azurevotefront-metadata":
│   47: resource "kubernetes_service" "azurevotefront-metadata" {

Kubernetes.tf

resource "kubernetes_namespace" "azurevotefront-namespace" {
  metadata {
    annotations = {
      name = "azurevotefront-annotation"
    }

    labels = {
      mylabel = "azurevotefront-value"
    }

    name = "azurevotefront-namespace"
  }
}

Provider.tf

terraform {
  backend "azurerm" {
    key = "terraform.tfstate"
    resource_group_name = "MASKED"
    storage_account_name = "MASKED"
    access_key = "MASKED"
    container_name = "MASKED"
  }
  required_providers {
    azurerm = {
      source  = "hashicorp/azurerm"
      version = "~>2.68"
    }
    kubernetes = {
      source  = "hashicorp/kubernetes"
      version = "~> 2.4"
    }
  }
}

provider "azurerm" {
  tenant_id = "MASKED"
  subscription_id = "MASKED"
  client_id = "MASKED"
  client_secret = "MASKED"
  features {}
}

Answer 1

as mentioned in the comments you are missing the kubernetes provider config:

provider "kubernetes" {
  host                   = azurerm_kubernetes_cluster.aks.kube_admin_config.0.host
  client_certificate     = base64decode(azurerm_kubernetes_cluster.aks.kube_admin_config.0.client_certificate)
  client_key             = base64decode(azurerm_kubernetes_cluster.aks.kube_admin_config.0.client_key)
  cluster_ca_certificate = base64decode(azurerm_kubernetes_cluster.aks.kube_admin_config.0.cluster_ca_certificate)
}