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My Dapr Demos

This repo is a collection of demos of the Dapr building blocks. Each demo provides a local and cloud based configuration to demonstrate the ability to run on multiple platforms. They are self contained and automatically provision the required infrastructure using the provided Bicep/Terraform files.

Demo Building Blocks Local Azure AWS Language
Binding Bindings File Share Azure Storage AWS S3 HTTP
DevOps Bindings
Observability
PubSub
State management
Twitter
Zipkin
Redis
Redis
Twitter
Zipkin
Azure Service Bus
Azure Table Storage
C#, Java, Python
MyApp PubSub
State management
Redis
Redis
Azure Service Bus
Azure Table Storage
AWS SNS/SQS
AWS DynamoDB
C#, HTTP
Observability Observability Zipkin Azure Application Insights C#, HTTP
PubSub Publish & Subscribe
Publish & Subscribe
State management
Redis
Redis
Redis
Azure Service Bus
Azure Event Hubs
Azure SQL Server
AWS SNS/SQS
AWS SNS/SQS
AWS DynamoDB
C#, HTTP
Secrets Secrets management Local Azure Key Vault AWS Secrets Manager HTTP
StateStore State management Redis Azure Cosmos DB AWS DynamoDB HTTP

Usage

These demos require CodeSpaces. This repo is configured to create a CodeSpace with all the required tools. Simply fork this repo and setup the Codespace secrets and assign them to your fork.

Create Codespace Secrets

To create the Codespace secrets you will need an Azure service principal, tenant and subscription id to run Azure Demos. To run the demos with AWS you will need an AWS access key ID, secret access key and region.

Azure

All of the demos define components that use Azure infrastructure. To run those demos you must set the appropriate secrets to access Azure resources. If these secrets are not set the Azure infrastructure will not be provisioned.

Create Service Principal

When the Codespace is created it runs a script to log in to the Azure CLI. It uses a service principal and needs the appid, password and tenant all of which are returned when you create a service principal. You can use an existing service principal or create a new one using the command below. You can learn more on the Create an Azure service principal with the Azure CLI page.

az ad sp create-for-rbac --name DaprServicePrincipal

{
  "appId": "00000000-0000-0000-0000-000000000000",
  "displayName": "DaprServicePrincipal",
  "name": "00000000-0000-0000-0000-000000000000",
  "password": "000000.0000000000.000000000-000000",
  "tenant": "00000000-0000-0000-0000-000000000000"
}

Save this information because there is no way to retrieve it again.

You will also need the id of the subscription you want to use. You can retrieve that running the following command.

az account show -o json

{
  "environmentName": "AzureCloud",
  "homeTenantId": "00000000-0000-0000-0000-000000000000",
  "id": "00000000-0000-0000-0000-000000000000",
  "isDefault": true,
  "managedByTenants": [],
  "name": "Subscription Name",
  "state": "Enabled",
  "tenantId": "00000000-0000-0000-0000-000000000000"
}

AWS

Some of the demos define components that use AWS infrastructure. To run those demos you must set the appropriate secrets to access AWS resources. If these secrets are not set the AWS infrastructure will not be provisioned.

Get Access key and secret access key

You can follow the instructions from the AWS document Access key ID and secret access key to collect the required information.

Twitter

The DevOps demo uses the Twitter input binding and requires Twitter keys and tokens. If these secrets are not set the DevOps demo will not run.

Get Twitter access token, access token secret, API key and API key secret

You can follow the instructions from the Twitter Developer Platform document Getting started to collect the required information.

Set Codespace secrets

Learn how to set Codespace secrets on the Managing encrypted secrets for your codespaces page. Make sure you assign them permission to the fork of this repository.

codespace secrets

Running Demos

All the scripts in the repository are PowerShell scripts. When using Codespaces the terminal should default to PowerShell, if not type pwsh to switch.

$ pwsh

Each demo has a workspace file in the root folder.

When you are ready to run a demo select Open Workspace... from the File menu. Select the workspace for the demo you want to run.

This will reload your Codespace and scope your Explorer to just the folders needed for this demo.

open workspace

In the root of each demo workspace is a demo.ps1 file. From a terminal execute this file to load the sampleRequest.http file and issue the dapr run command. The demo.ps1 file can accept a -env parameter to run the demo against cloud resources. When the -env parameter is used the script will provision the cloud resources if needed. The required cloud infrastructure can be deployed ahead of time by running the demo.ps1 with the -deployOnly switch. The script uses the Azure CLI to deploy a bicep or TerraForm file to deploy the required infrastructure.

To provision all the infrastructure for all demos you can use the deployAll.ps1 script from the .scripts folder. This will run the demo.ps1 script of every demo with the -deployOnly switch. There is also a cleanUpAll.ps1 script to delete all cloud resources and reset your repository.

To encourage best practices the components are all configured using secret stores. After the infrastructure is deployed the script will collect all the information needed to configure the components and write the data to a local_secrets.json file or in environment variables. The file or environment variables are read in a secret store component used to configure the other components. The local_secrets.json file is listed in the .gitignore file of the repository so they are not accidentally committed.

To delete your cloud resources and restore the repository to pre-demo state run the cleanUp.ps1 file in the root of each workspace.

See the README.md files in each demo folder for instructions on how to run the demo.

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