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Add a Python Azure Webserver example (pulumi#236)
* Add a Python Azure Webserver example * Add README.md * fix numbering * Fix indentation in readme * Update README now that this works * Fix custom data + use simpler pattern for data source * Format code * Add test * Fix syntax error
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‎azure-py-webserver/Pulumi.yaml

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name: azure-py-webserver
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runtime: python
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description: An Azure example using Python to provision a webserver

‎azure-py-webserver/README.md

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[![Deploy](https://get.pulumi.com/new/button.svg)](https://app.pulumi.com/new)
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# Azure Web Server example in Python
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This example deploys an Azure Virtual Machine and starts a HTTP server on it.
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## Prerequisites
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1. [Install Pulumi](https://pulumi.io/install/)
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1. [Configure Pulumi for Azure](https://pulumi.io/quickstart/azure/setup.html)
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1. [Configure Pulumi for Python](https://pulumi.io/reference/python.html)
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## Deploying and running the program
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1. Set up a virtual Python environment and install dependencies
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```
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$ virtualenv -p python3 venv
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$ source venv/bin/activate
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$ pip install -r requirements.txt
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```
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1. Create a new stack:
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```
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$ pulumi stack init azure-py-webserver
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```
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1. Set the Azure environment:
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```
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$ pulumi config set azure:environment public
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```
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1. Set the required configuration for this example. This example requires you to supply a username and password to
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the virtual machine that we are going to create.
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```
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$ pulumi config set azure-web:username myusername
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```
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The password is a secret, so we can ask Pulumi to encrypt the configuration:
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```
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$ pulumi config set --secret azure-web:password Hunter2hunter2
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```
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1. Run `pulumi up` to preview and deploy the changes:
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```
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$ pulumi update
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Previewing update (azuredev):
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Type Name Plan
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+ pulumi:pulumi:Stack azure-py-webserver-azuredev create
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+ ├─ azure:core:ResourceGroup server create
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+ ├─ azure:network:VirtualNetwork server-network create
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+ ├─ azure:network:PublicIp server-ip create
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+ ├─ azure:network:Subnet server-subnet create
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+ ├─ azure:network:NetworkInterface server-nic create
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+ └─ azure:compute:VirtualMachine server-vm create
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Resources:
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+ 7 to create
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Do you want to perform this update? yes
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Updating (azuredev):
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Type Name Status
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+ pulumi:pulumi:Stack azure-py-webserver-azuredev created
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+ ├─ azure:core:ResourceGroup server created
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+ ├─ azure:network:VirtualNetwork server-network created
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+ ├─ azure:network:PublicIp server-ip created
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+ ├─ azure:network:Subnet server-subnet created
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+ ├─ azure:network:NetworkInterface server-nic created
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+ └─ azure:compute:VirtualMachine server-vm created
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Outputs:
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public_ip: "137.117.15.111"
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Resources:
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+ 7 created
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Duration: 2m55s
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Permalink: https://app.pulumi.com/swgillespie/azure-py-webserver/azuredev/updates/3
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```
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1. Get the IP address of the newly-created instance from the stack's outputs:
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```
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$ pulumi stack output public_ip
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137.117.15.111
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```
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1. Check to see that your server is now running:
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```
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$ curl http://$(pulumi stack output public_ip)
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Hello, World!
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```
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1. Destroy the stack:
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```
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▶ pulumi destroy --yes
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Previewing destroy (azuredev):
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Type Name Plan
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- pulumi:pulumi:Stack azure-py-webserver-azuredev delete
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- ├─ azure:compute:VirtualMachine server-vm delete
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- ├─ azure:network:NetworkInterface server-nic delete
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- ├─ azure:network:Subnet server-subnet delete
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- ├─ azure:network:PublicIp server-ip delete
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- ├─ azure:network:VirtualNetwork server-network delete
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- └─ azure:core:ResourceGroup server delete
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Resources:
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- 7 to delete
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Destroying (azuredev):
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Type Name Status
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- pulumi:pulumi:Stack azure-py-webserver-azuredev deleted
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- ├─ azure:compute:VirtualMachine server-vm deleted
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- ├─ azure:network:NetworkInterface server-nic deleted
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- ├─ azure:network:Subnet server-subnet deleted
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- ├─ azure:network:VirtualNetwork server-network deleted
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- ├─ azure:network:PublicIp server-ip deleted
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- └─ azure:core:ResourceGroup server deleted
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Resources:
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- 7 deleted
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Duration: 3m49s
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Permalink: https://app.pulumi.com/swgillespie/azure-py-webserver/azuredev/updates/4
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```

‎azure-py-webserver/__main__.py

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import pulumi
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from pulumi import Output
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from pulumi_azure import core, compute, network
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config = pulumi.Config("azure-web")
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username = config.require("username")
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password = config.require("password")
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resource_group = core.ResourceGroup("server", location="West US")
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net = network.VirtualNetwork(
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"server-network",
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resource_group_name=resource_group.name,
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location=resource_group.location,
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address_spaces=["10.0.0.0/16"],
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subnets=[{
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"name": "default",
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"address_prefix": "10.0.1.0/24",
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}])
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subnet = network.Subnet(
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"server-subnet",
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resource_group_name=resource_group.name,
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virtual_network_name=net.name,
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address_prefix="10.0.2.0/24")
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public_ip = network.PublicIp(
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"server-ip",
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resource_group_name=resource_group.name,
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location=resource_group.location,
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allocation_method="Dynamic")
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network_iface = network.NetworkInterface(
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"server-nic",
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resource_group_name=resource_group.name,
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location=resource_group.location,
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ip_configurations=[{
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"name": "webserveripcfg",
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"subnet_id": subnet.id,
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"private_ip_address_allocation": "Dynamic",
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"public_ip_address_id": public_ip.id,
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}])
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userdata = """#!/bin/bash
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echo "Hello, World!" > index.html
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nohup python -m SimpleHTTPServer 80 &"""
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vm = compute.VirtualMachine(
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"server-vm",
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resource_group_name=resource_group.name,
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location=resource_group.location,
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network_interface_ids=[network_iface.id],
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vm_size="Standard_A0",
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delete_data_disks_on_termination=True,
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delete_os_disk_on_termination=True,
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os_profile={
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"computer_name": "hostname",
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"admin_username": username,
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"admin_password": password,
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"custom_data": userdata,
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},
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os_profile_linux_config={
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"disable_password_authentication": False,
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},
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storage_os_disk={
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"create_option": "FromImage",
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"name": "myosdisk1",
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},
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storage_image_reference={
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"publisher": "canonical",
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"offer": "UbuntuServer",
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"sku": "16.04-LTS",
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"version": "latest",
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})
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combined_output = Output.all(vm.id, public_ip.name,
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public_ip.resource_group_name)
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public_ip_addr = combined_output.apply(
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lambda lst: network.get_public_ip(name=lst[1], resource_group_name=lst[2]))
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pulumi.export("public_ip", public_ip_addr.ip_address)

‎azure-py-webserver/requirements.txt

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pulumi>=0.17.2
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pulumi_azure>=0.17.3

‎misc/test/examples_test.go

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// })
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// },
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}),
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base.With(integration.ProgramTestOptions{
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Dir: path.Join(cwd, "..", "..", "azure-py-webserver"),
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Config: map[string]string{
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"azure:environment": azureEnviron,
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"azure-web:username": "myusername",
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"azure-web:password": "Hunter2hunter2",
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},
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ExtraRuntimeValidation: func(t *testing.T, stack integration.RuntimeValidationStackInfo) {
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assertHTTPHelloWorld(t, stack.Outputs["public_ip"])
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},
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}),
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// TODO: This test fails due to a bug in the Terraform Azure provider in which the
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// service principal is not available when attempting to create the K8s cluster.
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// See the azure-ts-aks-example readme for more detail.

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