Sort all variables, outputs, arguments and blocks in resource block.

Adjust code file's style.
Add `numeric = false` for `random_string.name` in `201-mysql-fs-db` module as the name is used as `azurerm_mysql_flexible_server.default`'s `administrator_login` and the login name doesn't support a name start with number.
Add minimum constraints for `random_password.password` in `201-mysql-fs-db` module as the password required a minimum complexity.

quickstart/201-k8s-cluster-with-tf-and-aks/outputs.tf

@@ -1,5 +1,6 @@
-output "resource_group_name" {
-  value = azurerm_resource_group.rg.name
+output "client_certificate" {
+  value     = azurerm_kubernetes_cluster.k8s.kube_config[0].client_certificate
+  sensitive = true
 }
 
 output "client_key" {
@@ -7,23 +8,23 @@ output "client_key" {
   sensitive = true
 }
 
-output "client_certificate" {
-  value     = azurerm_kubernetes_cluster.k8s.kube_config[0].client_certificate
-  sensitive = true
-}
-
 output "cluster_ca_certificate" {
   value     = azurerm_kubernetes_cluster.k8s.kube_config[0].cluster_ca_certificate
   sensitive = true
 }
 
+output "cluster_password" {
+  value     = azurerm_kubernetes_cluster.k8s.kube_config[0].password
+  sensitive = true
+}
+
 output "cluster_username" {
   value     = azurerm_kubernetes_cluster.k8s.kube_config[0].username
   sensitive = true
 }
 
-output "cluster_password" {
-  value     = azurerm_kubernetes_cluster.k8s.kube_config[0].password
+output "host" {
+  value     = azurerm_kubernetes_cluster.k8s.kube_config[0].host
   sensitive = true
 }
 
@@ -32,8 +33,6 @@ output "kube_config" {
   sensitive = true
 }
 
-output "host" {
-  value     = azurerm_kubernetes_cluster.k8s.kube_config[0].host
-  sensitive = true
-}
-    
+output "resource_group_name" {
+  value = azurerm_resource_group.rg.name
+}