web app routing

202_private_aks_one_private_dns_zone/install-tools.sh

@@ -13,6 +13,6 @@ az login --identity
 
 # az aks list -o table
 
-# az aks get-credentials -n aks-cluster -g rg-spoke-203 --overwrite-existing
+# az aks get-credentials -n aks-cluster -g rg-spoke-202 --overwrite-existing
 
 # kubectl get nodes

203_private_aks_multi_private_dns_zone/install-tools.sh

@@ -13,6 +13,6 @@ az login --identity
 
 # az aks list -o table
 
-# az aks get-credentials -n aks-cluster -g rg-spoke-202 --overwrite-existing
+# az aks get-credentials -n aks-cluster -g rg-spoke-203-001 --overwrite-existing
 
 # kubectl get nodes

_app_routing/README.md

@@ -0,0 +1,187 @@
+# AKS Web App Routing demystified
+
+```sh
+az group create -n rg-aks-cluster -l swedencentral
+
+az aks create -n aks-cluster -g rg-aks-cluster --network-plugin azure --network-plugin-mode overlay -k 1.29.2 --enable-app-routing
+
+az aks show -n aks-cluster -g rg-aks-cluster --query ingressProfile
+# {
+#   "webAppRouting": {
+#     "dnsZoneResourceIds": null,
+#     "enabled": true,
+#     "identity": {
+#       "clientId": "c9616b19-7bc9-47eb-ab18-2604f18034ed",
+#       "objectId": "42e3242e-653d-4e48-b85d-0a183420017a",
+#       "resourceId": "/subscriptions/38977b70-47bf-4da5-a492-88712fce8725/resourcegroups/MC_rg-aks-cluster_aks-cluster_swedencentral/providers/Microsoft.ManagedIdentity/userAssignedIdentities/webapprouting-aks-cluster"
+#     }
+#   }
+# }
+
+az aks get-credentials -n aks-cluster -g rg-aks-cluster --overwrite-existing
+
+kubectl get all -n app-routing-system
+# NAME                         READY   STATUS    RESTARTS   AGE
+# pod/nginx-75b695b88d-d7knp   1/1     Running   0          8m17s
+# pod/nginx-75b695b88d-tn8c6   1/1     Running   0          8m32s
+
+# NAME            TYPE           CLUSTER-IP   EXTERNAL-IP   PORT(S)                                      AGE
+# service/nginx   LoadBalancer   10.0.10.4    4.225.23.86   80:30539/TCP,443:30249/TCP,10254:31107/TCP   8m32s
+
+# NAME                    READY   UP-TO-DATE   AVAILABLE   AGE
+# deployment.apps/nginx   2/2     2            2           8m32s
+
+# NAME                               DESIRED   CURRENT   READY   AGE
+# replicaset.apps/nginx-75b695b88d   2         2         2       8m32s
+
+# NAME                                        REFERENCE          TARGETS   MINPODS   MAXPODS   REPLICAS   AGE
+# horizontalpodautoscaler.autoscaling/nginx   Deployment/nginx   0%/80%    2         100       2          8m32s
+
+kubectl get ingressclass
+# NAME                                 CONTROLLER                                 PARAMETERS   AGE
+# webapprouting.kubernetes.azure.com   webapprouting.kubernetes.azure.com/nginx   <none>       20m
+
+kubectl create namespace hello-web-app-routing
+
+kubectl apply -f app.yaml -n hello-web-app-routing
+# deployment.apps/aks-helloworld created
+# service/aks-helloworld created
+# ingress.networking.k8s.io/aks-helloworld created
+
+kubectl get ingress -n hello-web-app-routing
+# NAME             CLASS                                HOSTS   ADDRESS       PORTS   AGE
+# aks-helloworld   webapprouting.kubernetes.azure.com   *       4.225.23.86   80      5m53s
+
+kubectl apply -f nginx-public-controller.yaml
+
+kubectl apply -f nginx-internal-controller.yaml
+
+kubectl get nginxingresscontroller -A
+NAME             INGRESSCLASS                         CONTROLLERNAMEPREFIX   AVAILABLE
+# default          webapprouting.kubernetes.azure.com   nginx                  True
+# nginx-internal   nginx-internal                       nginx-internal         True
+# nginx-public     nginx-public                         nginx-public           True
+
+kubectl get ingressclass
+# NAME                                 CONTROLLER                                       PARAMETERS   AGE
+# nginx-internal                       approuting.kubernetes.azure.com/nginx-internal   <none>       10m
+# nginx-public                         approuting.kubernetes.azure.com/nginx-public     <none>       10m
+# webapprouting.kubernetes.azure.com   webapprouting.kubernetes.azure.com/nginx         <none>       31m
+
+kubectl get pods -n app-routing-system
+# NAME                                READY   STATUS    RESTARTS   AGE
+# nginx-75b695b88d-d7knp              1/1     Running   0          27m
+# nginx-75b695b88d-tn8c6              1/1     Running   0          27m
+# nginx-internal-0-5f654fd544-6lqn9   1/1     Running   0          6m35s
+# nginx-internal-0-5f654fd544-cqkfz   1/1     Running   0          6m50s
+# nginx-public-0-6db48bfd68-plncd     1/1     Running   0          6m52s
+# nginx-public-0-6db48bfd68-wv5nc     1/1     Running   0          7m7s
+
+az keyvault create -n kvakscert01 -g rg-aks-cluster -l swedencentral --enable-rbac-authorization true
+
+az role assignment create --assignee $(az ad signed-in-user show --query id -o tsv) --role "Key Vault Administrator" --scope /subscriptions/$(az account show --query id -o tsv)
+
+# Create a self-signed SSL certificate to use with the Ingress
+openssl req -new -x509 -nodes -out aks-ingress-tls.crt -keyout aks-ingress-tls.key -subj "/CN=houssemdellai01.com" -addext "subjectAltName=DNS:houssemdellai01.com"
+
+# Export the SSL certificate
+openssl pkcs12 -export -in aks-ingress-tls.crt -inkey aks-ingress-tls.key -out aks-ingress-tls.pfx
+
+# Import certificate into Azure Key Vault
+az keyvault certificate import --vault-name kvakscert01 -n aks-app-cert -f aks-ingress-tls.pfx
+
+$KEYVAULT_ID=$(az keyvault show --name kvakscert01 --query id --output tsv)
+
+# Update the app routing add-on to enable the Azure Key Vault secret store CSI driver and apply the role assignment.
+az aks approuting update -n aks-cluster -g rg-aks-cluster --enable-kv --attach-kv $KEYVAULT_ID
+
+# Create an Azure DNS zone
+az network dns zone create -n houssemdellai01.com -g rg-aks-cluster
+
+# Attach Azure DNS zone to the application routing add-on
+# The az aks approuting zone add command uses the permissions of the user running the command to create the Azure DNS Zone role assignment. 
+# This role is assigned to the add-on's managed identity
+$ZONE_ID=$(az network dns zone show -n houssemdellai01.com -g rg-aks-cluster --query id --output tsv)
+
+# Update the add-on to enable the integration with Azure DNS
+az aks approuting zone add -n aks-cluster -g rg-aks-cluster --ids=$ZONE_ID --attach-zones
+
+# Get the certificate URI
+az keyvault certificate show --vault-name kvakscert01 -n aks-app-cert --query id --output tsv
+
+kubectl apply -f ingress-tls.yaml -n hello-web-app-routing
+# ingress.networking.k8s.io/aks-helloworld configured
+
+kubectl get ingress -n hello-web-app-routing
+# NAME             CLASS                                HOSTS                 ADDRESS       PORTS     AGE
+# aks-helloworld   webapprouting.kubernetes.azure.com   houssemdellai01.com   4.225.23.86   80, 443   52m
+
+kubectl get secret -n hello-web-app-routing -o yaml
+# apiVersion: v1
+# items:
+# - apiVersion: v1
+#   data:
+#     tls.crt: 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
+#     tls.key: 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
+#   kind: Secret
+#   metadata:
+#     creationTimestamp: "2024-04-15T19:35:19Z"
+#     labels:
+#       secrets-store.csi.k8s.io/managed: "true"
+#     name: keyvault-aks-helloworld
+#     namespace: hello-web-app-routing
+#     ownerReferences:
+#     - apiVersion: apps/v1
+#       kind: ReplicaSet
+#       name: keyvault-aks-helloworld-c7f879954
+#       uid: ccc840ed-6792-4503-85c9-b83ec5210469
+#     resourceVersion: "19869"
+#     uid: 02550ef2-07c9-46dc-9721-d566b387da1b
+#   type: kubernetes.io/tls
+
+kubectl get secretProviderClass -A
+# NAMESPACE               NAME                      AGE
+# hello-web-app-routing   keyvault-aks-helloworld   18m
+
+kubectl get secretProviderClass -A -o yaml
+# apiVersion: v1
+# items:
+# - apiVersion: secrets-store.csi.x-k8s.io/v1
+#   kind: SecretProviderClass
+#   metadata:
+#     creationTimestamp: "2024-04-15T19:35:17Z"
+#     generation: 1
+#     labels:
+#       app.kubernetes.io/managed-by: aks-app-routing-operator
+#     name: keyvault-aks-helloworld
+#     namespace: hello-web-app-routing
+#     ownerReferences:
+#     - apiVersion: networking.k8s.io/v1
+#       controller: true
+#       kind: Ingress
+#       name: aks-helloworld
+#       uid: 1cd4e237-0c8b-4914-a3b6-72e0d84afaeb
+#     resourceVersion: "22444"
+#     uid: 725570c3-4f3b-4c58-9455-875cc4b66d04
+#   spec:
+#     parameters:
+#       cloudName: AZUREPUBLICCLOUD
+#       keyvaultName: kvakscert01
+#       objects: '{"array":["{\"objectName\":\"aks-app-cert\",\"objectType\":\"secret\"}"]}'
+#       tenantId: a8f7faa1-3e2e-4d84-a6cb-daf7eb97d6e4
+#       useVMManagedIdentity: "true"
+#       userAssignedIdentityID: c9616b19-7bc9-47eb-ab18-2604f18034ed
+#     provider: azure
+#     secretObjects:
+#     - data:
+#       - key: tls.key
+#         objectName: aks-app-cert
+#       - key: tls.crt
+#         objectName: aks-app-cert
+#       secretName: keyvault-aks-helloworld
+#       type: kubernetes.io/tls
+#   status: {}
+# kind: List
+# metadata:
+#   resourceVersion: ""
+```

_app_routing/aks-ingress-tls.crt

@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----
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+ptikS+/lvDrIFQ3qVLfHhR4=
+-----END CERTIFICATE-----

_app_routing/aks-ingress-tls.key

@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
+MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCKMmf4kxGy/WMb
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+xP+5bQxjVqVapYImdIaDxzCz9AtU0kpYwDtaLQ7KieILxPdeTsFxdMDQmQKBgDsF
+HrR0Mk8ovcjEDtj094DA2SARipvE2CJPeOf8PvmtBK6yUXK80k2hXUxrpbIDhBJ2
+QkKIP8RuTPoEpBN9WrGQEHfRdT9He82FBs8mmJrhstneEFhoG4WLlw7I6Pjm4GrP
+xR/eaOgNVJj0CX+lHzuue5QSxPp8wzcq+1sMsDOVAoGANayuPEryny4z5MLPP1V4
+OJa6kx3HlIO9114rHGdNz+Q+29yWG+XyGSIn93LmrORNaoyHn6uRjMRZiJv5P10U
+mfuDGV7OTsAm52ZV6DGxKUp5+Yhz8+UjwYuZEqxe4BiU1gMQTbr40GtC5n48ff4B
+BzdmMJnPbrEpAqpJf6+Np+o=
+-----END PRIVATE KEY-----

_app_routing/ingress-tls.yaml

@@ -0,0 +1,24 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  annotations:
+    kubernetes.azure.com/tls-cert-keyvault-uri: "https://kvakscert01.vault.azure.net/certificates/aks-app-cert"
+  name: aks-helloworld
+  namespace: hello-web-app-routing
+spec:
+  ingressClassName: webapprouting.kubernetes.azure.com
+  rules:
+  - host: houssemdellai01.com
+    http:
+      paths:
+      - backend:
+          service:
+            name: aks-helloworld
+            port:
+              number: 80
+        path: /
+        pathType: Prefix
+  tls:
+  - hosts:
+    - houssemdellai01.com
+    secretName: keyvault-aks-helloworld