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README.md

Rock, Paper, Scissors, Lizard, Spock - Sample Application

We are happy to announce the release of Rock, Paper, Scissors, Lizard, Spock sample application running in Azure presented at Microsoft Ignite 2019 by Scott Hanselman and friends.

Rock, Paper, Scissors, Lizard, Spock is the geek version of the classic Rock, Paper, Scissors game. Rock, Paper, Scissors, Lizard, Spock is created by Sam Kass and Karen Bryla.

The Rock, Paper, Scissors, Lizard, Spock - Sample Application shows a multilanguage application built with Visual Studio and Visual Studio Code, deployed with GitHub Actions, and running on Azure Kubernetes Service (AKS). The sample application also uses Machine Learning and Azure Cognitive Services (Custom Vision API).

Languages used in this application include .NET, Node.js, Python, Java, and PHP.

Application development for everyone

New to Microsoft Azure?

You will need an Azure subscription to work with this demo code. You can:

  • Open an account for free Azure subscription. You get credits that can be used to try out paid Azure services. Even after the credits are used up, you can keep the account and use free Azure services and features, such as the Web Apps feature in Azure App Service.
  • Activate Visual Studio subscriber benefits. Your Visual Studio subscription gives you credits every month that you can use for paid Azure services.
  • Create an Azure Student Account and get free credit when you create your account.

Learn more about it with Microsoft Learn - Introduction to Azure.

Table of contents

Application Screens

Application Diagram

Getting Started

Pre-Requisites

  1. You will need Visual Studio 2019 on Windows 10.
  2. You will need Docker Desktop.

If you want to deploy this solution in Azure:

  1. You will need and Azure Subscription in order to deploy this.
  2. Azure CLI.
  3. Download and install helm.

Deploy to Azure

You can either go through all steps and customizing its configuration or run one single command.

Deploy RPSLS using one script

Execute the script located in Deploy folder with the following parameters:

.\Deploy-Unified.ps1 -resourceGroup <resource-group-name> -location <location> -clientId <service-principal-id> -password <service-principal-password> -subscription <subscription-id>
  • resourceGroup: The name of your resource group where all infrastructure will be created Required
  • location: Select where you want to create your resource group, for example: eastus Required
  • clientId: Id of the service principal used to create the AKS Optional
  • password: Password of the service principal Optional
  • subscription: Id of your subscription where you are going to deploy your resource group Required

If service principal credentials are not passed a new one will be created.

Deploy RPSLS step by step

To run RPSLS you need to create the Azure infrastructure. There are two ways to do it. Using Azure portal or using a Powershell script.

Step 1 - Option 1: Creating infrastructure using Azure Portal

An ARM template is provided so you can create the whole infrastructure required for RPSLS

Deploy to Azure

  • servicePrincipalId: Id of the service principal used to create the AKS Required
  • servicePrincipalSecret: Password of the service principal Required
  • aksVersion: AKS version to use. Required

The deployment could take more than 10 minutes, and once finished all needed resources will be created.

Step 1 - Option 2: Create the resources using the CLI

You can use the CLI to deploy the ARM script. Open a Powershell window from the /Deploy folder and run the Deploy-Arm-Azure.ps1 with following parameters:

  • -resourceGroup: Name of the resource group Required
  • -location: Location of the resource group Required if resourceGroup does not exist
  • -clientId: Id of the service principal used to create the AKS Optional
  • -password: Password of the service principal Optional

If service principal credentials are not passed a new one will be created.

Once script finishes, everything is installed. If a service principal has been created, the script will output the service principal details - please, take note of the appId and password properties for use them in the AKS deployment

Step 2: Deploy RPSLS on AKS

Pre-requisites for this deployment are to have:

  • The AKS and all related resources deployed in Azure
  • A terminal with Powershell environment
  • Azure CLI 2.0 installed.
  • Kubectl installed with the last version (v1.16.0 at this moment).
  • Docker installed

Service Principal

A Service Principal is needed for creating the AKS. If you use the CLI for create the resources. You need the client id and password of a Service Principal to install RPSLS.

In case you use Azure Portal for the resources' creation, you can also reuse a SP or create manually a new one for passing the credentials to the template.

Connecting kubectl to AKS

From the terminal type:

  • az login and follow instructions to log into your Azure.
  • If you have more than one subscription type az account list -o table to list all your Azure subscriptions. Then type az account set --subscription <subscription-id> to select your subscription
  • az aks get-credentials -n <your-aks-name> -g <resource-group-name> to download the configuration files that kubectl needs to connect to your AKS.

At this point if you type kubectl config current-context the name of your AKS cluster should be displayed. That means that kubectl is ready to use your AKS

Installing Tiller on AKS

Helm is a tool to deploy resources in a Kubernetes cluster in a clean and simple manner. It is composed of two tools, one client-side (the Helm client) that needs to be installed on your machine, and a server component called Tiller that has to be installed on the Kubernetes cluster.

To install Helm, refer to its installation page. Once Helm is installed, Tiller must be deployed on the cluster. For deploying Tiller run the ./Add-Tiller.ps1 (from Powershell).

Once installed, helm commands like helm ls should work without any error.

Configuring services

Before deploying services using Helm, you need to setup the configuration. We refer to the configuration file with the name of gvalues file. This file contains all secrets so beware to not commit in your repo accidentally.

An example of this file is in helm/gvalues.yaml. The deployment scripts use this file by default, but do not rely on editing this file. Instead create a copy of it a folder outside the repository and use the -valuesFile parameter of the deployment script.

Note: The folder /Deploy/helm/__values/ is added to .gitignore, so you can keep all your configuration files in it, to avoid accidental pushes.

Please refer to the comments of the file for its usage.

Auto generating the configuration file

Generating a valid gvalues file can be a bit harder, so there is a Powershell script that can do all work by you. This script assumes that all resources are deployed in the same resource group, and this resource group contains only the RPSLS resources. Also assumes the Azure resources have been created using the tools provided in this repo.

Note The Generate-Config.ps1 uses the application-insights CLI extension to find the application insights id. Install it with az extension add --name application-insights

To auto-generate your gvalues file just go to /Deploy/powershell folder and from a Powershell window, type the following:

.\Generate-Config.ps1 -resourceGroup <your-resource-group> -outputFile ..\helm\__values\<name-of-your-file>

The Generate-Config.ps1 script accepts so many parameters. Here you can find a list of them all.

The script checks that all needed resources exists in the resource group. If some resource is missing or there is an unexpected resource, the script exits.

Build & deploy images to ACR

You can manually use docker-compose to build and push the images to the ACR. If using compose you can set following environment variables:

  • TAG: Will contain the generated docker images tag
  • REGISTRY: Registry to use. This variable should be set to the login server of the ACR

Once set, you can use docker-compose build and docker-compose push to build and push the images.

Additionally there is a Powershell script in the Deploy folder, named Build-Push.ps1. You can use this script for building and pushing ALL images to ACR. Parameters of this script are:

  • resourceGroup: Resource group where ACR is. Required.
  • acrName: ACR name (not login server). Required.
  • dockerTag: Tag to use for generated images (defaults to latest)
  • dockerBuild: If $true (default value) docker images will be built using docker-compose build.
  • dockerPush: If $true (default value) docker images will be push to ACR using docker-compose push.

This script uses az CLI to get ACR information, and then uses docker-compose to build and push the images to ACR.

To build and push images tagged with v1 to a ACR named my-acr in resource group named my-rg, execute the following command inside /Deploy/powershell

.\Build-Push.ps1 -resourceGroup my-rg -dockerTag v1 -acrName my-acr

To just push the images (without building them before):

.\Build-Push.ps1 -resourceGroup my-rg -dockerTag v1 -acrName my-acr -dockerBuild $false

Deploying services

You need to use Powershell and run ./Deploy-Images-Aks.ps1. A typical call is:

.\Deploy-Image-Aks.ps1 -resourceGroup $resourceGroup -aksName $myAks -acrName $myAcr -valuesFile $myValuesFilePath

Note: Read the documentation of this script for a list of all parameters.

This script will install all services using Helm and your custom configuration from the configuration file set by -valuesFile parameter.

The parameter charts allow for a selective installation of charts. Is a list of comma-separated values that mandates the services to deploy in the AKS. Values are:

  • cs C# Player.
  • nj NodeJS Player.
  • py Python Player.
  • php PHP Player.
  • jv Java Player.
  • web Website
  • gm Game Manager

Contributing

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.microsoft.com.

When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.

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