Deploying an SNS Topic in AWS with PowerShell

In today’s cloud-driven IT infrastructure, automation is no longer a luxury but a necessity. Organizations of all sizes rely on highly automated AWS environments to manage complex workloads, enhance system performance, and reduce manual intervention. However, automation doesn’t just stop at provisioning virtual machines or deploying applications. It also includes monitoring, notifications, and alert systems that keep IT teams informed about changes and issues in real-time.

One such service provided by Amazon Web Services (AWS) for handling notifications is the Simple Notification Service (SNS). AWS SNS is an essential tool for sending alerts and messages triggered by various events across your cloud environment. This could range from EC2 instance failures, CloudWatch alarms, or even custom application notifications. While SNS can be configured manually through the AWS Management Console, in a highly automated infrastructure, it is critical to script and automate this configuration as well.

This article is part one of a four-part series that explores how to create and manage SNS topics using PowerShell. In this segment, we will delve into what SNS is, why it’s essential for cloud automation, and how to set up your environment to begin using AWS SNS via PowerShell.

What is AWS SNS?

Amazon Simple Notification Service (SNS) is a fully managed messaging service that facilitates communication between distributed systems, microservices, and serverless applications. It is designed to provide high-throughput, flexible, and cost-effective messaging for application and system alerts. At its core, SNS uses topics to route messages to various subscribers.

An SNS topic acts as a logical access point that represents a communication channel. It is essentially a named entity to which you can publish messages and which routes those messages to one or more endpoints. These endpoints can be of several types, including email addresses, SMS numbers, HTTPS URLs, AWS Lambda functions, and Amazon SQS queues.

For example, suppose you are running a multi-tier web application in AWS. Each tier of your application could have a corresponding SNS topic. If there is a failure in the database tier, only the database administrators would get notified, and if the web server crashes, the web team would receive an alert. This kind of granular notification control is what makes SNS so powerful and effective in automated environments.

Benefits of Using SNS in Automated Infrastructure

  • Decouples message publishers from subscribers
  • Offers flexible message delivery mechanisms
  • Supports multiple endpoint types
  • Easy integration with other AWS services
  • Scales automatically with your environment

Imperative vs Declarative Configuration Approaches in AWS

Before diving into how to create SNS topics using PowerShell, it’s essential to understand two different paradigms in configuring AWS infrastructure: imperative and declarative approaches.

Declarative Configuration

The declarative method focuses on defining what the end state of the infrastructure should be, rather than how to achieve it. AWS CloudFormation is a prime example of a declarative tool. You write templates that describe your desired AWS resources and their properties, and CloudFormation takes care of provisioning them accordingly.

When using CloudFormation to create an SNS topic, the topic’s attributes are pre-defined in the template. This method is suitable for stable environments where infrastructure doesn’t change frequently and where configuration as code is a priority.

Imperative Configuration

In contrast, the imperative approach involves executing commands that tell the system how to achieve a specific state. This is where scripting languages like PowerShell come into play. Instead of defining everything in advance, you run scripts that create or modify resources on demand.

PowerShell scripts offer a flexible, real-time method of managing AWS resources. You can integrate these scripts into CI/CD pipelines, scheduled tasks, or automation tools to dynamically create SNS topics when specific criteria are met. This makes imperative configuration ideal for dynamic or event-driven environments.

Use Case: Why Automate SNS Topic Creation?

Imagine you’re working in a DevOps role managing an AWS environment that supports a large-scale web application. Your application spans multiple EC2 instances, databases, load balancers, and other components. You use Amazon CloudWatch to monitor these resources and trigger alerts when anomalies are detected.

But how do these alerts reach the relevant personnel or systems? This is where SNS comes in. By linking CloudWatch alarms to SNS topics, you can automatically notify the right stakeholders when something goes wrong. For instance:

  • A high CPU usage alarm could notify the operations team
  • A failed database connection might alert the database administrators
  • A broken build pipeline could inform the development team

If your infrastructure is automated using tools like AWS Cloud Development Kit (CDK), Terraform, or custom PowerShell scripts, it makes sense to automate the creation of SNS topics as well. This ensures that new environments come online fully configured with their notification channels, saving time and reducing errors.

Getting Started with PowerShell for AWS

To manage AWS resources from PowerShell, you need the AWS Tools for PowerShell module. This module provides cmdlets that wrap around the AWS SDK for .NET and allow you to interact with AWS services directly from a PowerShell prompt or script.

Installing AWS Tools for PowerShell

You can install the AWS Tools for PowerShell module using the PowerShell Gallery. There are two main versions of this module:

  1. AWS.Tools: Modular version where each AWS service has its module
  2. AWSPowerShell.NetCore: Monolithic version containing all AWS services

For this series, we recommend using the modular AWS. The tool’s version is as it reduces memory usage and loading time.

# Install the module for SNS only

Install-Module -Name AWS.Tools.SimpleNotificationService -Scope CurrentUser

If you prefer to work with multiple AWS services in the same script, you might choose to install other modules as needed:

Install-Module -Name AWS.Tools.Common -Scope CurrentUser

Install-Module -Name AWS.Tools.EC2 -Scope CurrentUser

Install-Module -Name AWS.Tools.CloudWatch -Scope CurrentUser

Setting Up AWS Credentials

Before you can use AWS Tools for PowerShell, you need to configure your credentials. There are multiple ways to do this:

  • Shared credentials file: Located at ~/.aws/credentials
  • Environment variables: AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN
  • AWS credential profiles: Useful for managing multiple sets of credentials

To configure your credentials using the Set-AWSCredential cmdlet:

$awsAccessKey = “YOUR_ACCESS_KEY”

$awsSecretKey = “YOUR_SECRET_KEY”

Set-AWSCredential -AccessKey $awsAccessKey -SecretKey $awsSecretKey -StoreAs default

Or use a stored profile:

Set-AWSCredential -ProfileName “myProfile”

Once your credentials are configured, PowerShell can securely interact with your AWS account.

What is Amazon Simple Notification Service (SNS)?

Amazon Simple Notification Service (SNS) is a managed service that enables application-to-application (A2A) and application-to-person (A2P) messaging. It provides developers with a highly scalable, flexible, and cost-effective way to publish messages from an application and immediately deliver them to subscribers or other applications.

The concept of SNS revolves around the use of topics. Topics are logical access points and communication channels. They serve as hubs for message publishing and delivery. In other words, publishers send messages to topics, and subscribers receive these messages by subscribing to the topics.

Key Benefits of Using Amazon SNS

  • Scalability: SNS is capable of handling very large numbers of messages and endpoints.
  • Decoupling: It decouples message producers from consumers, allowing systems to be more flexible and easier to manage.
  • Flexibility: Supports multiple protocols such as HTTP, HTTPS, email, SMS, Lambda functions, and Amazon SQS.
  • Real-Time Delivery: Messages are delivered to subscribers in near real-time, allowing immediate action to be taken when necessary.
  • Secure: Supports authentication and encryption.

Common Use Cases for Amazon SNS

  1. Application Monitoring: Automatically send notifications when a threshold is breached.
  2. Microservices Communication: Use SNS to trigger communication between microservices.
  3. Fan-Out Architecture: Publish a single message that fans out to multiple recipients.
  4. Incident Alerts: Notify system administrators and engineers about system anomalies.

PowerShell and AWS: Getting Set Up

The Importance of PowerShell in Cloud Automation

PowerShell is a command-line shell and scripting language designed especially for system administration. It’s built on the .NET framework and helps administrators automate tasks related to managing systems. PowerShell becomes particularly powerful in cloud environments like AWS, where automation is key to efficiency and scalability.

Using PowerShell with AWS can:

  • Automate resource provisioning
  • Manage configurations
  • Integrate with CI/CD pipelines
  • Create repeatable infrastructure deployments

AWS Tools for PowerShell

The AWS Tools for PowerShell lets developers and administrators manage AWS services and resources in the PowerShell scripting environment. The tools provide cmdlets for nearly every service offered by AWS.

Core Components

  • AWSPowerShell: The original full-featured module.
  • AWSPowerShell.NetCore: Designed for cross-platform usage.
  • AWS.Tools: A modularized version that allows you to install cmdlets only for the services you use.

Installing AWS Tools for PowerShell

Here’s how to install the AWS Tools using PowerShell:

Step 1: Open PowerShell as Administrator

Step 2: Use the following command to install the module

Install-Module -Name AWS.Tools.Installer -Scope CurrentUser

Step 3: Install SNS Tools Specifically

Install-AWSToolsModule AWS.Tools.SNS -Scope CurrentUser

Step 4: Verify Installation

Get-Module -ListAvailable AWS.Tools.SNS

Configuring AWS Credentials in PowerShell

Before you can use PowerShell with AWS, you need to configure your credentials:

Option 1: Use the Set-AWSCredential Cmdlet

Set-AWSCredential -AccessKey “YourAccessKey” -SecretKey “YourSecretKey” -StoreAs “MyProfile”

Option 2: Use the Shared Credentials File

PowerShell uses the same shared credentials file as the AWS CLI:

Path: ~/.aws/credentials

[default]

aws_access_key_id = YourAccessKey

aws_secret_access_key = YourSecretKey

You can also add different profiles for different roles or environments.

Testing the Connection

Use the following to list your available topics and verify the connection:

Get-SNSTopicList -ProfileName MyProfile -Region us-west-2

If your credentials and region are correctly configured, you should see a list of topics or an empty result if none exist.

Best Practices Before Creating Topics

Define a Clear Naming Convention

Naming topics consistently ensures that your team can quickly identify the purpose of each topic. For example:

  • dev-ec2-health-topic
  • prod-order-processing-topic

Naming should indicate environment, use case, and scope.

Determine the Protocols You Will Use

Decide how subscribers will receive notifications. Supported protocols include:

  • Email
  • Email-JSON
  • SMS
  • HTTP/HTTPS endpoints
  • AWS Lambda functions
  • Amazon SQS queues

Create IAM Policies with Least Privilege

Use Identity and Access Management (IAM) to create roles and policies that limit access to only those who need it.

Example IAM Policy for SNS Access

{

  “Version”: “2012-10-17”,

  “Statement”: [

    {

      “Effect”: “Allow”,

      “Action”: [

        “sns: CreateTopic”,

        “sns: Publish”,

        “sn s: Subscribe”

      ],

      “Resource”: “*”

    }

  ]

}

Logging and Monitoring

Enable logging for topic deliveries and failures using Amazon CloudWatch. This helps track delivery success and debug issues.

Use the Following:

  • CloudWatch Logs
  • CloudTrail Events
  • CloudWatch Metrics

Preparing for Automation

Now that we understand the setup requirements and best practices, the next step is preparing to write scripts that will handle topic creation automatically.

Pre-Scripting Checklist

  1. Credentials: Confirm you have AWS credentials with the right permissions.
  2. Installed Tools: Ensure AWS Tools for PowerShell are installed.
  3. Region: Know which region your topics will be created in.
  4. Topic Names: Prepare a list or pattern of topic names if creating multiple.
  5. Protocols and Endpoints: Know which endpoints will be subscribed to.

Structure Your Scripts

Modular scripting helps in making the automation reusable. Each script module can:

  • Create a topic
  • Add subscriptions
  • Publish a test message
  • Check status

Decide on Execution Method

You can run scripts manually or trigger them via CI/CD tools like Jenkins, GitLab CI, or AWS CodePipeline.

Use Parameterization

Build your scripts to accept parameters like -TopicName, -Protocol, and -Endpoint. This makes them flexible and usable in various contexts.

Implement Error Handling

Always include try-catch blocks in your PowerShell scripts to gracefully handle errors.

Example:

try {

    # create topic logic here

} catch {

    Write-Output “Error: $_”

}

Writing PowerShell Scripts to Create Amazon SNS Topics

Now that we understand what Amazon SNS is, the difference between imperative and declarative provisioning, and how to prepare our PowerShell environment, it’s time to dive into writing PowerShell scripts that create Amazon SNS topics programmatically.

Objective of This Part

The purpose of this section is to:

  • Demonstrate how to create Amazon SNS topics using PowerShell
  • Show how to subscribe endpoints to those topics
  • Send test messages
  • Validate topic creation
  • Include error handling and a reusable functions

By the end of this section, you’ll be able to script end-to-end creation and management of SNS topics with minimal manual interaction.

Creating a Simple SNS Topic with PowerShell

Basic Topic Creation Script

To create a new SNS topic using PowerShell, use the New-SNSTopic cmdlet.

Example Script

$topicName = “dev-notifications”

$region = “us-west-2”

$profile = “MyProfile”

try {

    $response = New-SNSTopic -Name $topicName -Region $region -ProfileName $profile

    Write-Output “SNS Topic created successfully.”

    Write-Output “Topic ARN: $($response.TopicArn)”

} catch {

    Write-Output “Failed to create SNS topic. Error: $_”

}

Explanation

  • $topicName: Defines the name of the topic.
  • $region: Specifies the AWS region.
  • $profile: The AWS CLI profile used to authenticate.
  • New-SNSTopic: Creates the SNS topic.
  • Try/catch: Catches and logs any errors during execution.

This script is a basic example and can be extended for additional functionality.

Creating a Reusable PowerShell Function

Instead of writing one-off scripts, it is better to encapsulate logic in reusable functions. This makes the code more modular and maintainable.

Function to Create a Topic

function Create-SNSTopic {

    param (

        [string]$TopicName,

        [string]$Region,

        [string]$Profile

    )

    try {

        $response = New-SNSTopic -Name $TopicName -Region $Region -ProfileName $Profile

        Write-Output “SNS Topic ‘$TopicName’ created successfully.”

        return $response.TopicArn

    } catch {

        Write-Output “Error creating topic ‘$TopicName’: $_”

        return $null

    }

}

Usage

$arn = Create-SNSTopic -TopicName “test-alerts” -Region “us-west-2” -Profile “MyProfile”

This function can now be reused anywhere in your scripts for creating topics.

Subscribing Endpoints to an SNS Topic

Once a topic is created, you typically need to subscribe to one or more endpoints. You can use New-SNSSubscription for this purpose.

Email Subscription Example

$topicArn = “arn:aws:sns:us-west-2:123456789012:test-alerts”

$email = “[email protected]

try {

    $subscription = New-SNSSubscription -TopicArn $topicArn -Protocol email -Endpoint $email -Region “us-west-2” -ProfileName “MyProfile”

    Write-Output “Email subscription created. Confirmation required.”

} catch {

    Write-Output “Failed to create subscription: $_”

}

Subscription with HTTPS Endpoint

New-SNSSubscription -TopicArn $topicArn -Protocol https -Endpoint “https://yourdomain.com/endpoint” -Region “us-west-2” -ProfileName “MyProfile”

Reusable Function to Subscribe Endpoints

function Subscribe-ToSNSTopic {

    param (

        [string]$TopicArn,

        [string]$Protocol,

        [string]$Endpoint,

        [string]$Region,

        [string]$Profile

    )

    try {

        $subscription = New-SNSSubscription -TopicArn $TopicArn -Protocol $Protocol -Endpoint $Endpoint -Region $Region -ProfileName $Profile

        Write-Output “Subscription request sent to $Endpoint. Protocol: $Protocol”

        return $subscription

    } catch {

        Write-Output “Error subscribing to topic: $_”

        return $null

    }

}

Function Usage Example

Subscribe-ToSNSTopic -TopicArn $arn -Protocol email -Endpoint “[email protected]” -Region “us-west-2” -Profile “MyProfile”

Publishing Messages to SNS Topics with PowerShell

Once your topic and subscriptions are in place, you may want to test it by publishing a message.

Publish a Simple Message

Publish-SNSMessage -TopicArn $arn -Message “This is a test notification.” -Region “us-west-2” -ProfileName “MyProfile”

Extended Publishing Function

function Publish-SNSMessageToTopic {

    param (

        [string]$TopicArn,

        [string]$Message,

        [string]$Subject,

        [string]$Region,

        [string]$Profile

    )

    try {

        Publish-SNSMessage -TopicArn $TopicArn -Message $Message -Subject $Subject -Region $Region -ProfileName $Profile

        Write-Output “Message published to topic: $TopicArn”

    } catch {

        Write-Output “Failed to publish message: $_”

    }

}

Usage Example

Publish-SNSMessageToTopic -TopicArn $arn -Message “Critical Error Detected!” -Subject “Alert” -Region “us-west-2” -Profile “MyProfile”

Full Workflow Script

Here’s an example script that creates a topic, subscribes a user, and sends a test message.

$topicName = “production-healthcheck”

$region = “us-west-2”

$profile = “MyProfile”

$email = “[email protected]

# Step 1: Create the Topic

$arn = Create-SNSTopic -TopicName $topicName -Region $region -Profile $profile

if ($arn -ne $null) {

    # Step 2: Subscribe to the Topic

    Subscribe-ToSNSTopic -TopicArn $arn -Protocol email -Endpoint $email -Region $region -Profile $profile

    # Step 3: Publish a Test Message

    Publish-SNSMessageToTopic -TopicArn $arn -Message “SNS setup successful” -Subject “Test Alert” -Region $region -Profile $profile

}

Validating SNS Topic and Subscription Status

List All Topics

Get-SNSTopicList -Region “us-west-2” -ProfileName “MyProfile”

Check Subscriptions for a Topic

Get-SNSSubscriptionList -TopicArn $arn -Region “us-west-2” -ProfileName “MyProfile”

Confirm Subscription

For email protocols, the user must manually confirm the subscription by clicking the link sent to their inbox. Until confirmed, the subscription remains pending.

Error Handling and Logging

Logging to a File

Start-Transcript -Path “C:\Logs\SNS_ScriptLog.txt” -Append

# Your code here

Stop-Transcript

Adding Detailed Error Handling

try {

    # operation

} catch {

    $errorMessage = “An error occurred: $_”

    Add-Content -Path “C:\Logs\SNS_Errors.txt” -Value $errorMessage

}

Using JSON Configuration for Multiple Topics

For automation at scale, it is more efficient to use configuration files.

Sample JSON File

[

    {

        “TopicName”: “team-a-notifications”,

        “Protocol”: “email”,

        “Endpoint”: “[email protected]

    },

    {

        “TopicName”: “team-b-notifications”,

        “Protocol”: “email”,

        “Endpoint”: “[email protected]

    }

]

Reading JSON and Automating

$json = Get-Content “C:\configs\sns_config.json” | ConvertFrom-Json

foreach ($item in $json) {

    $arn = Create-SNSTopic -TopicName $item.TopicName -Region “us-west-2” -Profile “MyProfile”

    if ($arn -ne $null) {

        Subscribe-ToSNSTopic -TopicArn $arn -Protocol $item.Protocol -Endpoint $item.Endpoint -Region “us-west-2” -Profile “MyProfile”

        Publish-SNSMessageToTopic -TopicArn $arn -Message “Welcome to SNS Notifications!” -Subject “Init Message” -Region “us-west-2” -Profile “MyProfile”

    }

}

Implementing Retry Logic for Resilience

To ensure reliability, especially when dealing with intermittent network issues or throttling, implement retry logic.

function Retry-Operation {

    param (

        [scriptblock]$Operation,

        [int]$Retries = 3,

        [int]$DelaySeconds = 5

    )

    for ($i = 0; $i -lt $Retries; $i++) {

        try {

            & $Operation

            return

        } catch {

            if ($i -eq ($Retries – 1)) {

                throw

            } else {

                Start-Sleep -Seconds $DelaySeconds

            }

        }

    }

}

Usage Example

Retry-Operation { Create-SNSTopic -TopicName “retry-test” -Region “us-west-2” -Profile “MyProfile” }

Automating Amazon SNS Topic Creation with PowerShell 

Introduction to Advanced Use Cases

In previous parts of this series, we covered foundational concepts and scripting for Amazon SNS (Simple Notification Service) using PowerShell. In this final part, we dive into advanced use cases, cross-region topic management, CI/CD integration, and automation at scale. By the end of this section, you’ll be equipped to build enterprise-grade notification infrastructures using PowerShell and SNS.

Section 1: CI/CD Integration with SNS Scripting

Why Integrate SNS in CI/CD?

Integrating SNS into CI/CD pipelines can improve observability, alert developers of failures or deploy completions, and streamline automated communication. Key reasons include:

  • Notifying stakeholders of pipeline success/failure
  • Alerting on code promotion or rollback
  • Enabling automated remediation with Lambda triggers

Jenkins Example Integration

Pre-requisites:

  • AWS Tools for PowerShell installed on Jenkins agents
  • AWS credentials configured
  • PowerShell scripts from Part 3 are available

Jenkinsfile Snippet:

pipeline {

    agent any

    stages {

        stage(‘Notify Start’) {

            steps {

                powershell ”’

                $arn = Create-SNSTopic -TopicName “build-start” -Region “us-west-2” -Profile “MyProfile”

                Publish-SNSMessageToTopic -TopicArn $arn -Message “Build has started” -Subject “CI Notification” -Region “us-west-2” -Profile “MyProfile”

                ”’

            }

        }

        // Other stages…

    }

}

GitLab CI/CD YAML Integration

stages:

  – notify

Notify:

  stage: notify

  Script:

    – pwsh ./notify-start.ps1

  only:

    – main

Section 2: Managing Cross-Region SNS Topics

Amazon SNS topics are region-specific. If you need to operate in multiple AWS regions, you must manage topic creation and subscription in each region.

Strategy for Multi-Region Support

  1. Centralized Configuration File: Store topic details in a JSON or YAML file.
  2. Loop Over Regions: Use a loop in PowerShell to deploy topics in multiple regions.
  3. Validate After Deployment: Ensure topics and subscriptions are created in each region.

Sample Multi-Region Script

$regions = @(“us-west-2”, “us-east-1”)

$topics = @(

    @{ Name = “global-alerts”; Protocol = “email”; Endpoint = “[email protected]” }

)

foreach ($region in $regions) {

    foreach ($topic in $topics) {

        $arn = Create-SNSTopic -TopicName $topic.Name -Region $region -Profile “MyProfile”

        Subscribe-ToSNSTopic -TopicArn $arn -Protocol $topic.Protocol -Endpoint $topic.Endpoint -Region $region -Profile “MyProfile”

        Publish-SNSMessageToTopic -TopicArn $arn -Message “SNS setup completed in $region” -Subject “Deployment” -Region $region -Profile “MyProfile”

    }

}

Section 3: Dynamic Topic Naming and Tagging

To better manage and search topics, implement dynamic naming conventions and tagging.

Dynamic Naming Convention Example

$env = “prod”

$app = “payment”

$topicName = “$env-$app-errors”

Tagging SNS Topics

AWS SNS supports tagging for better visibility and cost allocation.

Add-SNSTag -ResourceArn $arn -Tags @{ Key = “Environment”; Value = “Production” }, @{ Key = “Application”; Value = “Payment” } -Region “us-west-2” -ProfileName “MyProfile”

Section 4: Automating IAM Policy Assignment for Topics

Use Case

If you want other AWS accounts or services (like S3, Lambda, etc.) to publish to your SNS topics, you must grant permission explicitly using topic policies.

Assigning Publish Permission to Another Account

$policy = @”

{

  “Version”: “2012-10-17”,

  “Statement”: [

    {

      “Effect”: “Allow”,

      “Principal”: {“AWS”: “arn:aws:iam::123456789012:root”},

      “Action”: “sns: Publish”,

      “Resource”: “$arn”

    }

  ]

}

“@

Set-SNSTopicAttribute -TopicArn $arn -AttributeName Policy -AttributeValue $policy -Region “us-west-2” -ProfileName “MyProfile”

Section 5: Monitoring and Logging Automation

To automate observability, enable SNS metrics, delivery logs, and CloudWatch alarms via PowerShell.

Enable Delivery Logging

Delivery logs must be configured through subscriptions and destinations (e.g., SQS or Lambda), but monitoring topic-level metrics is also helpful.

Create a CloudWatch Alarm for Failed Deliveries

New-CWAlarm -AlarmName “SNSDeliveryFailures” -MetricName “NumberOfNotificationsFailed” -Namespace “AWS/SNS” -Statistic Sum -Period 300 -EvaluationPeriods 1 -Threshold 1 -ComparisonOperator GreaterThanOrEqualToThreshold -Dimensions @{ Name = “TopicName”; Value = “my-topic” } -AlarmActions $arn -Region “us-west-2” -ProfileName “MyProfile”

Section 6: Handling JSON and Parameter Files

Many enterprises use parameter files for automation, allowing non-developers to update configurations.

Example Parameter JSON

[

  {

    “TopicName”: “frontend-errors”,

    “Protocol”: “email”,

    “Endpoint”: “[email protected]”,

    “Region”: “us-west-2”

  },

  {

    “TopicName”: “backend-errors”,

    “Protocol”: “email”,

    “Endpoint”: “[email protected]”,

    “Region”: “us-east-1”

  }

]

Reading and Executing from JSON

$config = Get-Content “C:\sns_config.json” | ConvertFrom-Json

foreach ($item in $config) {

    $arn = Create-SNSTopic -TopicName $item.TopicName -Region $item.Region -Profile “MyProfile”

    Subscribe-ToSNSTopic -TopicArn $arn -Protocol $item.Protocol -Endpoint $item.Endpoint -Region $item.Region -Profile “MyProfile”

    Publish-SNSMessageToTopic -TopicArn $arn -Message “Notification test” -Subject “SNS Check” -Region $item.Region -Profile “MyProfile”

}

Section 7: Security and Best Practices

  • Use Least Privilege: Only allow required actions.
  • Encrypt Topics: Use AWS KMS for message encryption.
  • Rotate Access Keys: Regularly rotate IAM user credentials.
  • Audit with CloudTrail: Enable CloudTrail to log all SNS actions.

Conclusion

This part has explored advanced techniques for automating Amazon SNS with PowerShell:

  • CI/CD integration
  • Cross-region management
  • Topic tagging and naming conventions
  • IAM policy automation
  • Monitoring with CloudWatch
  • Parameterized automation using JSON

With these tools and strategies, you can build scalable, secure, and efficient SNS-based notification systems suitable for enterprises of all sizes. Continue refining your automation scripts, incorporating testing, and adapting to new AWS features as they emerge.

You’re now equipped to take full control of SNS automation using PowerShell in production environments.

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