Public/Set-DefaultAwsProfile.ps1
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Function Set-DefaultAwsProfile { <# .SYNOPSIS Generates or modifies a default entry in the AWS configuration file using the provided parameters. .DESCRIPTION This function sets the default configuration in AWS configuration file with the specified profile, region, and various predefined settings. .PARAMETER region The region of your preferred profile .PARAMETER profile The name of your preferred profile. .PARAMETER sso_start_url The SSO start URL for AWS SSO. .PARAMETER sso_region The AWS region where the SSO is configured. If not specified it will default to the region parameter. .EXAMPLE set-DefaultAwsProfile -region "eu-west-1" -profile "main" -sso_start_url "https://d-93672f1b5f.awsapps.com/start" -sso_region "eu-west-1" .NOTES Ensure that the AWS CLI is installed and configured on your system. .LINK https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-sso.html #> param ( [Parameter(Mandatory=$true)] [string]$region, [Parameter(Mandatory=$true)] [string]$profile, [Parameter()] [string]$sso_region = "$region", [Parameter()] [string]$sso_start_url = "https://d-93672f1b5f.awsapps.com/start" ) # Define the path to the AWS config file $awsConfigPath = "$HOME\.aws\config" # Ensure the .aws directory exists if (-not (Test-Path -Path "$HOME\.aws")) { New-Item -ItemType Directory -Path "$HOME\.aws" -Force | Out-Null } # Read existing content if file exists, else initialize as empty $configContent = if (Test-Path -Path $awsConfigPath) { Get-Content -Path $awsConfigPath -Raw } else { "" } # Define the new `[default]` section $defaultConfig = @" [default] region = $region profile = $profile sso_region = $sso_region sso_start_url= $sso_start_url output = json "@ # Match and replace the entire `[default]` section, including its header $regex = "(?s)(\[default\].*?)(?=\n\[|\z)" if ($configContent -match "\[default\]") { # Replace only the `[default]` section, preserving everything else $configContent = $configContent -replace $regex, "$defaultConfig`n" Write-Output "Existing default profile found, replacing with new profile..." } else { # Append `[default]` section if not found $configContent = $configContent.Trim() + "`n`n" + $defaultConfig Write-Output "No existing default profile found, creating new profile..." } try { # Write updated content back to the file $utf8NoBom = New-Object System.Text.UTF8Encoding($false) # Disable BOM [System.IO.File]::WriteAllBytes($awsConfigPath, $utf8NoBom.GetBytes($configContent)) Write-Host "the default AWS config has been set to: `n$defaultConfig" -ForegroundColor Green } catch { Write-Output "An error occurred while trying to write to the AWS config file: $_" -ForegroundColor Red } } |