Azure kubernetes install docs

docs/install/kubernetes/README.md

@@ -34,6 +34,7 @@ You will need a Kubernetes environment. The deployment has currently been tested
  - [AWS EKS](aws_terraform.md)
  - [Digital Ocean](digital-ocean.md)
  - MicroK8s
+ - [Azure AKS](azure.md)
 
  It should run on any Kubernetes platform, but may require some changes for vendor specific Ingress setup.
 

docs/install/kubernetes/azure.md

@@ -0,0 +1,59 @@
+---
+navTitle: Azure AKS Installation
+meta:
+   description: Learn how to install FlowFuse on AWS EKS with setup details for EKS, Nginx Ingress, AWS SES, and RDS PostgreSQL integration.
+   tags:
+      - flowfuse
+      - nodered
+      - azure
+      - aks
+      - nginx ingress
+      - helm
+      - kubernetes
+---
+
+# Azure AKS Specific details
+
+This document includes details for installing FlowFuse on Azure AKS
+
+## Nginx Ingress
+
+We recommend using the <a href="https://kubernetes.github.io/ingress-nginx/" target="_blank">Nginx Ingress controller</a> as this is the one we test with and we have run into limits on the number of Instances with other Ingress Controllers. 
+
+```bash
+helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
+helm repo update
+helm --kubeconfig=./k8s-flowforge-kubeconfig.yaml install nginx-ingress \
+  ingress-nginx/ingress-nginx --namespace ingress-nginx \
+  --create-namespace \
+  --set controller.publishService.enabled=true \
+  --set controller.ingressClassResource.default=true \
+  --set controller.config.proxy-body-size="0" 
+  --wait
+
+```
+
+The `controller.config.proxy-body-size="0"` removes the `1m` default payload limit 
+from the nginx ingress proxy. You can change this to say `5m` which will match the 
+Node-RED default value.
+
+
+### HTTPS with Nginx Ingress
+
+Azure's LoadBalancer does not support doing TLS termination so HTTPS certificates will either need to up added to AKS as Kubernetes Secrets or make use of 
+Certificate Manager to provision certificates either from LetsEncrypt or other ACME Certificate Authorities.
+
+## Persistent Storage
+
+If making use of the Persistent Storage feature you will need to provide a StorageClass that support MultiPod mounting.
+
+e.g. Azure Files backed Persistent Volumes
+
+
+You should also set the `nobrl` Mount Option to ensure things like SQLite databases work correctly if using the Azure Files back Persistent Volumes.
+
+## User Azure Database for PostgreSQL
+
+By default the helm chart will install a local copy of PostgreSQL 14.
+
+But you may make use of Azure's hosted PostgreSQL solution, but you will need to provision the user and empty database before doing the Helm install.