Azure Kubernetes Service and Istio : Enabling SSL for the application - azure

Question

I have created an AKS cluster using the following Terraform code
resource "azurerm_virtual_network" "test" {
name = var.virtual_network_name
location = azurerm_resource_group.rg.location
resource_group_name = azurerm_resource_group.rg.name
address_space = [var.virtual_network_address_prefix]
subnet {
name = var.aks_subnet_name
address_prefix = var.aks_subnet_address_prefix
}
subnet {
name = "appgwsubnet"
address_prefix = var.app_gateway_subnet_address_prefix
}
tags = var.tags
}
data "azurerm_subnet" "kubesubnet" {
name = var.aks_subnet_name
virtual_network_name = azurerm_virtual_network.test.name
resource_group_name = azurerm_resource_group.rg.name
depends_on = [azurerm_virtual_network.test]
}
resource "azurerm_kubernetes_cluster" "k8s" {
name = var.aks_name
location = azurerm_resource_group.rg.location
dns_prefix = var.aks_dns_prefix
resource_group_name = azurerm_resource_group.rg.name
http_application_routing_enabled = false
linux_profile {
admin_username = var.vm_user_name
ssh_key {
key_data = file(var.public_ssh_key_path)
}
}
default_node_pool {
name = "agentpool"
node_count = var.aks_agent_count
vm_size = var.aks_agent_vm_size
os_disk_size_gb = var.aks_agent_os_disk_size
vnet_subnet_id = data.azurerm_subnet.kubesubnet.id
}
service_principal {
client_id = local.client_id
client_secret = local.client_secret
}
network_profile {
network_plugin = "azure"
dns_service_ip = var.aks_dns_service_ip
docker_bridge_cidr = var.aks_docker_bridge_cidr
service_cidr = var.aks_service_cidr
}
# Enabled the cluster configuration to the Azure kubernets with RBAC
azure_active_directory_role_based_access_control {
managed = var.azure_active_directory_role_based_access_control_managed
admin_group_object_ids = var.active_directory_role_based_access_control_admin_group_object_ids
azure_rbac_enabled = var.azure_rbac_enabled
}
oms_agent {
log_analytics_workspace_id = module.log_analytics_workspace[0].id
}
timeouts {
create = "20m"
delete = "20m"
}
depends_on = [data.azurerm_subnet.kubesubnet,module.log_analytics_workspace]
tags = var.tags
}
resource "azurerm_role_assignment" "ra1" {
scope = data.azurerm_subnet.kubesubnet.id
role_definition_name = "Network Contributor"
principal_id = local.client_objectid
depends_on = [data.azurerm_subnet.kubesubnet]
}
and followed the below steps to install the ISTIO as per the ISTIO documentation
#Prerequisites
helm repo add istio https://istio-release.storage.googleapis.com/charts
helm repo update
#create namespace
kubectl create namespace istio-system
# helm install istio-base and istiod
helm install istio-base istio/base -n istio-system
helm install istiod istio/istiod -n istio-system --wait
# Check the installation status
helm status istiod -n istio-system
#create namespace and enable istio-injection for envoy proxy containers
kubectl create namespace istio-ingress
kubectl label namespace istio-ingress istio-injection=enabled
## helm install istio-ingress for traffic management
helm install istio-ingress istio/gateway -n istio-ingress --wait
## Mark the default namespace as istio-injection=enabled
kubectl label namespace default istio-injection=enabled
and deployed the following app and service
apiVersion: v1
kind: ServiceAccount
metadata:
name: httpbin
---
apiVersion: v1
kind: Service
metadata:
name: httpbin
labels:
app: httpbin
service: httpbin
spec:
ports:
- name: http
port: 8000
targetPort: 80
selector:
app: httpbin
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: httpbin
spec:
replicas: 1
selector:
matchLabels:
app: httpbin
version: v1
template:
metadata:
labels:
app: httpbin
version: v1
spec:
serviceAccountName: httpbin
containers:
- image: docker.io/kennethreitz/httpbin
imagePullPolicy: IfNotPresent
name: httpbin
ports:
- containerPort: 80
and added the secrets like mentioned below
kubectl create -n istio-system secret tls httpbin-credential --key=example_certs1/httpbin.example.com.key --cert=example_certs1/httpbin.example.com.crt
and Gateway installed like mentioned below
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
name: mygateway
spec:
selector:
istio: ingress # use istio default ingress gateway
servers:
- port:
number: 443
name: https
protocol: HTTPS
tls:
mode: SIMPLE
credentialName: httpbin-credential # must be the same as secret
hosts:
- httpbin.example.com
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
name: httpbin
spec:
hosts:
- "httpbin.example.com"
gateways:
- mygateway
http:
- match:
- uri:
prefix: /status
- uri:
prefix: /delay
route:
- destination:
port:
number: 8000
host: httpbin
and updated the host file like mentioned below
However I can't access the Application
Note: I can access an another application that doesn't use SSL