Merge pull request #226946 from jasonmesser7/quick-create-cli-alterations

Altered the Linux VM quick create document to be more Linux and automation friendly

Author: Court72

articles/virtual-machines/linux/quick-create-cli.md

@@ -29,32 +29,44 @@ To open the Cloud Shell, just select **Try it** from the upper right corner of a
 
 If you prefer to install and use the CLI locally, this quickstart requires Azure CLI version 2.0.30 or later. Run `az --version` to find the version. If you need to install or upgrade, see [Install Azure CLI]( /cli/azure/install-azure-cli).
 
+## Define Environment Variables
+Environment variables are commonly used in Linux to centralize configuration data to improve consistency and maintainability of the system. Create the following environment variables to specify the names of resources that will be created later in this tutorial:
+
+```azurecli-interactive
+export RESOURCE_GROUP_NAME=myResourceGroup
+export LOCATION=eastus
+export VM_NAME=myVM
+export VM_IMAGE=debian
+export ADMIN_USERNAME=azureuser
+```
+
 ## Create a resource group
 
-Create a resource group with the [az group create](/cli/azure/group) command. An Azure resource group is a logical container into which Azure resources are deployed and managed. The following example creates a resource group named *myResourceGroup* in the *eastus* location:
+Create a resource group with the [az group create](/cli/azure/group) command. An Azure resource group is a logical container into which Azure resources are deployed and managed. 
 
 ```azurecli-interactive
-az group create --name myResourceGroup --location eastus
+az group create --name $RESOURCE_GROUP_NAME --location $LOCATION
 ```
 
 ## Create virtual machine
 
 Create a VM with the [az vm create](/cli/azure/vm) command.
 
-The following example creates a VM named *myVM* and adds a user account named *azureuser*. The `--generate-ssh-keys` parameter is used to automatically generate an SSH key, and put it in the default key location (*~/.ssh*). To use a specific set of keys instead, use the `--ssh-key-values` option.
+The following example creates a VM and adds a user account. The `--generate-ssh-keys` parameter is used to automatically generate an SSH key, and put it in the default key location (*~/.ssh*). To use a specific set of keys instead, use the `--ssh-key-values` option.
 
 ```azurecli-interactive
 az vm create \
-  --resource-group myResourceGroup \
-  --name myVM \
-  --image Debian \
-  --admin-username azureuser \
-  --generate-ssh-keys
+  --resource-group $RESOURCE_GROUP_NAME \
+  --name $VM_NAME \
+  --image $VM_IMAGE \
+  --admin-username $ADMIN_USERNAME \
+  --generate-ssh-keys \
+  --public-ip-sku Standard
 ```
 
 It takes a few minutes to create the VM and supporting resources. The following example output shows the VM create operation was successful.
-
-```output
+<!--expected_similarity=0.18-->
+```json
 {
   "fqdns": "",
   "id": "/subscriptions/<guid>/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM",
@@ -69,24 +81,31 @@ It takes a few minutes to create the VM and supporting resources. The following
 
 Make a note of the `publicIpAddress` to use later.
 
-## Install web server
+You can retrieve and store the IP address in the variable IP_ADDRESS with the following command:
+
+```azurecli-interactive
+export IP_ADDRESS=$(az vm show --show-details --resource-group $RESOURCE_GROUP_NAME --name $VM_NAME --query publicIps --output tsv)
+```
+
+[!INCLUDE [ephemeral-ip-note.md](../../../includes/ephemeral-ip-note.md)]
+
+## Install web server 
 
-To see your VM in action, install the NGINX web server. Update your package sources and then install the latest NGINX package.
+To see your VM in action, install the NGINX web server. Update your package sources and then install the latest NGINX package. The following command uses run-command to run `sudo apt-get update && sudo apt-get install -y nginx` on the VM:
 
 ```azurecli-interactive
 az vm run-command invoke \
-   -g myResourceGroup \
-   -n myVM \
+   --resource-group $RESOURCE_GROUP_NAME \
+   --name $VM_NAME \
    --command-id RunShellScript \
    --scripts "sudo apt-get update && sudo apt-get install -y nginx"
 ```
-
 ## Open port 80 for web traffic
 
 By default, only SSH connections are opened when you create a Linux VM in Azure. Use [az vm open-port](/cli/azure/vm) to open TCP port 80 for use with the NGINX web server:
 
 ```azurecli-interactive
-az vm open-port --port 80 --resource-group myResourceGroup --name myVM
+az vm open-port --port 80 --resource-group $RESOURCE_GROUP_NAME --name $VM_NAME
 ```
 
 ## View the web server in action
@@ -95,12 +114,48 @@ Use a web browser of your choice to view the default NGINX welcome page. Use the
 
 ![Screenshot showing the N G I N X default web page.](./media/quick-create-cli/nginix-welcome-page-debian.png)
 
+Alternatively, run the following command to see the NGINX welcome page in the terminal
+
+```azurecli-interactive
+ curl $IP_ADDRESS
+```
+ 
+The following example shows the default NGINX web site in the terminal as successful output:
+<!--expected_similarity=0.8-->
+```html
+<!DOCTYPE html>
+<html>
+<head>
+<title>Welcome to nginx!</title>
+<style>
+    body {
+        width: 35em;
+        margin: 0 auto;
+        font-family: Tahoma, Verdana, Arial, sans-serif;
+    }
+</style>
+</head>
+<body>
+<h1>Welcome to nginx!</h1>
+<p>If you see this page, the nginx web server is successfully installed and
+working. Further configuration is required.</p>
+
+<p>For online documentation and support please refer to
+<a href="http://nginx.org/">nginx.org</a>.<br/>
+Commercial support is available at
+<a href="http://nginx.com/">nginx.com</a>.</p>
+
+<p><em>Thank you for using nginx.</em></p>
+</body>
+</html>
+```
+
 ## Clean up resources
 
 When no longer needed, you can use the [az group delete](/cli/azure/group) command to remove the resource group, VM, and all related resources. 
 
 ```azurecli-interactive
-az group delete --name myResourceGroup
+az group delete --name $RESOURCE_GROUP_NAME --no-wait --yes --verbose
 ```
 
 ## Next steps