---
title: "Load Balancer and Web Server Using Azure Load Balancer and Virtual Machine"
description: "Basic example of an Azure Load Balancer fronting an Azure VM accessible over HTTP"
url: "https://www.pulumi.com/dev/examples/azure-py-loadbalancer-vm/"
image: "https://www.pulumi.com/assets/og/dev/examples/azure-py-loadbalancer-vm.png"
---

# Load Balancer and Web Server Using Azure Load Balancer and Virtual Machine

Basic example of an Azure Load Balancer fronting an Azure VM accessible over HTTP

- Source on GitHub: https://github.com/pulumi/examples/tree/master/azure-py-loadbalancer-vm
- Deploy with Pulumi: https://app.pulumi.com/new?template=https%3A%2F%2Fgithub.com%2Fpulumi%2Fexamples%2Ftree%2Fmaster%2Fazure-py-loadbalancer-vm

## Get started with this example

This example lives in the [pulumi/examples](https://github.com/pulumi/examples/tree/master/azure-py-loadbalancer-vm) repo. Pull down just this directory to follow along:

```bash
git clone --filter=blob:none --sparse https://github.com/pulumi/examples pulumi-examples
git -C pulumi-examples sparse-checkout set azure-py-loadbalancer-vm
cd pulumi-examples/azure-py-loadbalancer-vm
```

This example deploys an Azure Load Balancer fronting an Azure Virtual Machine and starts an HTTP server on the VM.

## Prerequisites

1. [Install Pulumi](https://www.pulumi.com/docs/get-started/install/)
1. [Configure Pulumi for Azure](https://www.pulumi.com/docs/intro/cloud-providers/azure/setup/)
1. [Configure Pulumi for Python](https://www.pulumi.com/docs/intro/languages/python/)

## Deploying and running the program

1. Create a new stack:

    ```bash
    $ pulumi stack init dev
    ```

1. Set the required configuration for this example. This example requires you to supply a username and password to the virtual machine that we are going to create.

    ```
    $ pulumi config set azure-native:location westus    # any valid Azure region will do
    $ pulumi config set username webmaster
    $ pulumi config set password --secret <your-password>
    ```

    Note that `--secret` ensures your password is encrypted safely.


1. Run `pulumi up` to preview and deploy the changes:

    ```
    $ pulumi update
    Previewing update (azuredev):

        Type                                           Name                                        Plan
     +  pulumi:pulumi:Stack                            azure-py-loadbalancer-vm-azuredev           create
     +   ├─ random:index:RandomString                  azure-py-loadbalancer-vm-lb-domain-label    create
     +   ├─ azure-native:resources:ResourceGroup       azure-py-loadbalancer-vm-resource-group     create
     +   ├─ azure-native:network:VirtualNetwork        azure-py-loadbalancer-vm-network            create
     +   ├─ azure-native:network:NetworkSecurityGroup  azure-py-loadbalancer-vm-security-group     create
     +   ├─ azure-native:network:PublicIPAddress       azure-py-loadbalancer-vm-lb-public-ip       create
     +   ├─ azure-native:network:LoadBalancer          azure-py-loadbalancer-vm-lb                 create
     +   ├─ azure-native:network:NetworkInterface      azure-py-loadbalancer-vm-network-interface  create
     +   └─ azure-native:compute:VirtualMachine        azure-py-loadbalancer-vm                    create

    Resources:
        + 9 to create

    Do you want to perform this update? yes
    Updating (azuredev):

        Type                                           Name                                        Status
     +  pulumi:pulumi:Stack                            azure-py-loadbalancer-vm-azuredev           created (14s)
     +   ├─ random:index:RandomString                  azure-py-loadbalancer-vm-lb-domain-label    created (0.28s)
     +   ├─ azure-native:resources:ResourceGroup       azure-py-loadbalancer-vm-resource-group     created (0.90s)
     +   ├─ azure-native:network:VirtualNetwork        azure-py-loadbalancer-vm-network            created (4s)
     +   ├─ azure-native:network:NetworkSecurityGroup  azure-py-loadbalancer-vm-security-group     created (2s)
     +   ├─ azure-native:network:PublicIPAddress       azure-py-loadbalancer-vm-lb-public-ip       created (5s)
     +   ├─ azure-native:network:LoadBalancer          azure-py-loadbalancer-vm-lb                 created (1s)
     +   ├─ azure-native:network:NetworkInterface      azure-py-loadbalancer-vm-network-interface  created (5s)
     +   └─ azure-native:compute:VirtualMachine        azure-py-loadbalancer-vm                    created (87s)

        Outputs:
            fqdn : "http://azure-py-loadbalancer-vm-n3jtn905.westus2.cloudapp.azure.com"
            lb-ip: "20.3.225.29"

        Resources:
            + 9 created

        Duration: 1m51s

        Permalink: https://app.pulumi.com/phillipedwards/azure-py-loadbalancer-vm/azuredev/updates/3
    ```

1. Get the IP address of the newly-created Load Balancer from the stack's outputs:

    ```bash
    $ pulumi stack output lb-ip
    137.117.15.111
    ```

1. Get the FQDN of the newly-created Load Balancer from the stack's outputs:

    ```bash
    $ pulumi stack output fqdn
    http://azure-py-loadbalancer-vm-n3jtn905.westus2.cloudapp.azure.com
    ```

1. Check to see that your server is now running:

    ```
    $ curl "http://$(pulumi stack output lb-ip)"
    Hello, World!

    $ curl "$(pulumi stack output fqdn)"
    Hello, World!
    ```

1. Destroy the stack:

    ```bash
    $ pulumi destroy --yes
    Previewing destroy (azuredev):

        Type                                          Name                                        Plan
    -   pulumi:pulumi:Stack                           azure-py-loadbalancer-vm-azuredev           delete
    -   ├─ azure-native:compute:VirtualMachine        azure-py-loadbalancer-vm                    delete
    -   ├─ azure-native:network:NetworkInterface      azure-py-loadbalancer-vm-network-interface  delete
    -   ├─ azure-native:network:LoadBalancer          azure-py-loadbalancer-vm-lb                 delete
    -   ├─ azure-native:network:PublicIPAddress       azure-py-loadbalancer-vm-lb-public-ip       delete
    -   ├─ azure-native:network:NetworkSecurityGroup  azure-py-loadbalancer-vm-security-group     delete
    -   ├─ azure-native:network:VirtualNetwork        azure-py-loadbalancer-vm-network            delete
    -   ├─ random:index:RandomString                  azure-py-loadbalancer-vm-lb-domain-label    delete
    -   └─ azure-native:resources:ResourceGroup       azure-py-loadbalancer-vm-resource-group     delete

    Outputs:
     - fqdn : "http://azure-py-loadbalancer-vm-n3jtn905.westus2.cloudapp.azure.com"
     - lb-ip: "20.3.225.29"

    Resources:
        - 9 to delete

    Destroying (azuredev):

    Type                                              Name                                        Status
    -   pulumi:pulumi:Stack                           azure-py-loadbalancer-vm-azuredev           deleted
    -   ├─ azure-native:compute:VirtualMachine        azure-py-loadbalancer-vm                    deleted (42s)
    -   ├─ azure-native:network:NetworkInterface      azure-py-loadbalancer-vm-network-interface  deleted (5s)
    -   ├─ azure-native:network:LoadBalancer          azure-py-loadbalancer-vm-lb                 deleted (10s)
    -   ├─ azure-native:network:PublicIPAddress       azure-py-loadbalancer-vm-lb-public-ip       deleted (20s)
    -   ├─ azure-native:network:VirtualNetwork        azure-py-loadbalancer-vm-network            deleted (11s)
    -   ├─ azure-native:network:NetworkSecurityGroup  azure-py-loadbalancer-vm-security-group     deleted (3s)
    -   ├─ azure-native:resources:ResourceGroup       azure-py-loadbalancer-vm-resource-group     deleted (76s)
    -   └─ random:index:RandomString                  azure-py-loadbalancer-vm-lb-domain-label    deleted (0.23s)


    Outputs:
    - fqdn : "http://azure-py-loadbalancer-vm-n3jtn905.westus2.cloudapp.azure.com"
    - lb-ip: "20.3.225.29"

    Resources:
        - 9 deleted

    Duration: 2m38s
    ```