sbourdeaud.psm1
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#region functions function Write-LogOutput { <# .SYNOPSIS Outputs color coded messages to the screen and/or log file based on the category. .DESCRIPTION This function is used to produce screen and log output which is categorized, time stamped and color coded. .PARAMETER Category This the category of message being outputed. If you want color coding, use either "INFO", "WARNING", "ERROR" or "SUM". .PARAMETER Message This is the actual message you want to display. .PARAMETER LogFile If you want to log output to a file as well, use logfile to pass the log file full path name. .NOTES Author: Stephane Bourdeaud (sbourdeaud@nutanix.com) .EXAMPLE .\Write-LogOutput -category "ERROR" -message "You must be kidding!" Displays an error message. .LINK https://github.com/sbourdeaud #> [CmdletBinding(DefaultParameterSetName = 'None')] #make this function advanced param ( [Parameter(Mandatory)] [ValidateSet('INFO','WARNING','ERROR','SUM','SUCCESS')] [string] $Category, [string] $Message, [string] $LogFile ) process { $Date = get-date #getting the date so we can timestamp the output entry $FgColor = "Gray" #resetting the foreground/text color switch ($Category) #we'll change the text color depending on the selected category { "INFO" {$FgColor = "Green"} "WARNING" {$FgColor = "Yellow"} "ERROR" {$FgColor = "Red"} "SUM" {$FgColor = "Magenta"} "SUCCESS" {$FgColor = "Cyan"} } Write-Host -ForegroundColor $FgColor "$Date [$category] $Message" #write the entry on the screen if ($LogFile) #add the entry to the log file if -LogFile has been specified { Add-Content -Path $LogFile -Value "$Date [$Category] $Message" Write-Verbose -Message "Wrote entry to log file $LogFile" #specifying that we have written to the log file if -verbose has been specified } } }#end function Write-LogOutput #this function is used to connect to Prism REST API function Invoke-PrismRESTCall { #input: username, password, url, method, body #output: REST response <# .SYNOPSIS Connects to Nutanix Prism REST API. .DESCRIPTION This function is used to connect to Prism REST API. .NOTES Author: Stephane Bourdeaud .PARAMETER username Specifies the Prism username. .PARAMETER password Specifies the Prism password. .PARAMETER url Specifies the Prism url. .EXAMPLE PS> PrismRESTCall -username admin -password admin -url https://10.10.10.10:9440/PrismGateway/services/rest/v1/ #> param ( [string] $username, [string] $password, [string] $url, [string] [ValidateSet('GET','PATCH','PUT','POST','DELETE')] $method, $body ) begin { #Setup authentication header for REST call $myvarHeader = @{"Authorization" = "Basic "+[System.Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes($username+":"+$password ))} } process { if ($body) { $myvarHeader += @{"Accept"="application/json"} $myvarHeader += @{"Content-Type"="application/json"} if ($IsLinux) { try { if ($PSVersionTable.PSVersion.Major -ge 6) { $myvarRESTOutput = Invoke-RestMethod -Method $method -Uri $url -Headers $myvarHeader -Body $body -SkipCertificateCheck -SslProtocol Tls12 -ErrorAction Stop } else { $myvarRESTOutput = Invoke-RestMethod -Method $method -Uri $url -Headers $myvarHeader -Body $body -SkipCertificateCheck -ErrorAction Stop } } catch { Write-LogOutput -category "ERROR" -message "$($_.Exception.Message)" try { $RESTError = Get-RESTError -ErrorAction Stop $RESTErrorMessage = ($RESTError | ConvertFrom-Json).Message if ($RESTErrorMessage) {Write-LogOutput -category "ERROR" -message "$RESTErrorMessage"} } catch { Write-LogOutput -category "ERROR" -message "Could not retrieve full REST error details." } Exit } }else { try { $myvarRESTOutput = Invoke-RestMethod -Method $method -Uri $url -Headers $myvarHeader -Body $body -ErrorAction Stop } catch { Write-LogOutput -category "ERROR" -message "$($_.Exception.Message)" try { $RESTError = Get-RESTError -ErrorAction Stop $RESTErrorMessage = ($RESTError | ConvertFrom-Json).Message if ($RESTErrorMessage) {Write-LogOutput -category "ERROR" -message "$RESTErrorMessage"} } catch { Write-LogOutput -category "ERROR" -message "Could not retrieve full REST error details." } Exit } } } else { if ($IsLinux) { try { $myvarRESTOutput = Invoke-RestMethod -Method $method -Uri $url -Headers $myvarHeader -SkipCertificateCheck -ErrorAction Stop } catch { Write-LogOutput -category "ERROR" -message "$($_.Exception.Message)" try { $RESTError = Get-RESTError -ErrorAction Stop $RESTErrorMessage = ($RESTError | ConvertFrom-Json).Message if ($RESTErrorMessage) {Write-LogOutput -category "ERROR" -message "$RESTErrorMessage"} } catch { Write-LogOutput -category "ERROR" -message "Could not retrieve full REST error details." } Exit } }else { try { $myvarRESTOutput = Invoke-RestMethod -Method $method -Uri $url -Headers $myvarHeader -ErrorAction Stop } catch { Write-LogOutput -category "ERROR" -message "$($_.Exception.Message)" try { $RESTError = Get-RESTError -ErrorAction Stop $RESTErrorMessage = ($RESTError | ConvertFrom-Json).Message if ($RESTErrorMessage) {Write-LogOutput -category "ERROR" -message "$RESTErrorMessage"} } catch { Write-LogOutput -category "ERROR" -message "Could not retrieve full REST error details." } Exit } } } } end { return $myvarRESTOutput } }#end function Get-PrismRESTCall #this function is used to upload a file to AHV Prism Image Configuration library function Send-FileToPrism { #input: username, password, url, method, file #output: REST response <# .SYNOPSIS Uploads a file to AHV Prism Image Configuration library. .DESCRIPTION This function is used to upload a file to the AHV image configuration library. .NOTES Author: Stephane Bourdeaud .PARAMETER username Specifies the Prism username. .PARAMETER password Specifies the Prism password. .PARAMETER url Specifies the Prism url. .EXAMPLE .\Send-FileToPrism -username admin -password admin -url https://10.10.10.10:9440/api/nutanix/v0.8/images/$image_uuid/upload -method "PUT" -container_uuid $container_uuid -file /media/backup/vmdisk.qcow2 #> param ( [string] $username, [string] $password, [string] $url, [string] [ValidateSet('PUT')] $method, [string] $container_uuid, $file ) begin { #Setup authentication header for REST call $myvarHeader = @{"Authorization" = "Basic "+[System.Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes($username+":"+$password ))} } process { $myvarHeader += @{"Accept"="application/json"} $myvarHeader += @{"Content-Type"="application/octet-stream;charset=UTF-8"} #$myvarHeader += @{"X-Nutanix-Destination-Container"=$container_uuid} if ($IsLinux) { try { $myvarRESTOutput = Invoke-RestMethod -Method $method -Uri $url -Headers $myvarHeader -Body $file -SkipCertificateCheck -ErrorAction Stop } catch { Write-LogOutput -category "ERROR" -message "$($_.Exception.Message)" try { $RESTError = Get-RESTError -ErrorAction Stop $RESTErrorMessage = ($RESTError | ConvertFrom-Json).Message if ($RESTErrorMessage) {Write-LogOutput -category "ERROR" -message "$RESTErrorMessage"} } catch { Write-LogOutput -category "ERROR" -message "Could not retrieve full REST error details." } Exit } }else { try { $myvarRESTOutput = Invoke-RestMethod -Method $method -Uri $url -Headers $myvarHeader -Body $file -ErrorAction Stop } catch { Write-LogOutput -category "ERROR" -message "$($_.Exception.Message)" try { $RESTError = Get-RESTError -ErrorAction Stop $RESTErrorMessage = ($RESTError | ConvertFrom-Json).Message if ($RESTErrorMessage) {Write-LogOutput -category "ERROR" -message "$RESTErrorMessage"} } catch { Write-LogOutput -category "ERROR" -message "Could not retrieve full REST error details." } Exit } } } end { return $myvarRESTOutput } }#end function Upload-FileToPrism #function Get-RESTError function Get-RESTError { $global:helpme = $body $global:helpmoref = $moref $global:result = $_.Exception.Response.GetResponseStream() $global:reader = New-Object System.IO.StreamReader($global:result) $global:responseBody = $global:reader.ReadToEnd(); return $global:responsebody break }#end function Get-RESTError #this function is used to create saved credentials for the current user function Set-CustomCredentials { #input: path, credname #output: saved credentials file <# .SYNOPSIS Creates a saved credential file using DAPI for the current user on the local machine. .DESCRIPTION This function is used to create a saved credential file using DAPI for the current user on the local machine. .NOTES Author: Stephane Bourdeaud .PARAMETER path Specifies the custom path where to save the credential file. By default, this will be %USERPROFILE%\Documents\WindowsPowershell\CustomCredentials. .PARAMETER credname Specifies the credential file name. .EXAMPLE .\Set-CustomCredentials -path c:\creds -credname prism-apiuser Will prompt for user credentials and create a file called prism-apiuser.txt in c:\creds #> param ( [parameter(mandatory = $false)] [string] $path, [parameter(mandatory = $true)] [string] $credname ) begin { if (!$path) { $path = "$Env:USERPROFILE\Documents\WindowsPowerShell\CustomCredentials" Write-Host "$(get-date) [INFO] Set path to $path" -ForegroundColor Green } } process { #prompt for credentials $credentialsFilePath = "$path\$credname.txt" $credentials = Get-Credential -Message "Enter the credentials to save in $Env:USERPROFILE\Documents\WindowsPowerShell\CustomCredentials\$credname.txt" #put details in hashed format $user = $credentials.UserName $securePassword = $credentials.Password #convert secureString to text $password = $securePassword | ConvertFrom-SecureString #create directory to store creds if it does not already exist if(!(Test-Path $path)) { try {$result = New-Item -type Directory $path} catch {throw "$(get-date) [ERROR] Could not create directory $path : $($_.Exception.Message)"} } #save creds to file try {Set-Content $credentialsFilePath $user} catch {throw "$(get-date) [ERROR] Could not write username to $credentialsFilePath : $($_.Exception.Message)"} try {Add-Content $credentialsFilePath $password} catch {throw "$(get-date) [ERROR] Could not write password to $credentialsFilePath : $($_.Exception.Message)"} Write-Host "$(get-date) [SUCCESS] Saved credentials to $credentialsFilePath" -ForegroundColor Cyan } end {} } #this function is used to retrieve saved credentials for the current user function Get-CustomCredentials { #input: path, credname #output: credential object <# .SYNOPSIS Retrieves saved credential file using DAPI for the current user on the local machine. .DESCRIPTION This function is used to retrieve a saved credential file using DAPI for the current user on the local machine. .NOTES Author: Stephane Bourdeaud .PARAMETER path Specifies the custom path where the credential file is. By default, this will be %USERPROFILE%\Documents\WindowsPowershell\CustomCredentials. .PARAMETER credname Specifies the credential file name. .EXAMPLE .\Get-CustomCredentials -path c:\creds -credname prism-apiuser Will retrieve credentials from the file called prism-apiuser.txt in c:\creds #> param ( [parameter(mandatory = $false)] [string] $path, [parameter(mandatory = $true)] [string] $credname ) begin { if (!$path) { $path = "$Env:USERPROFILE\Documents\WindowsPowerShell\CustomCredentials" Write-Host "$(get-date) [INFO] Retrieving credentials from $path" -ForegroundColor Green } } process { $credentialsFilePath = "$path\$credname.txt" if(!(Test-Path $credentialsFilePath)) { throw "$(get-date) [ERROR] Could not access file $credentialsFilePath : $($_.Exception.Message)" } $credFile = Get-Content $credentialsFilePath $user = $credFile[0] $securePassword = $credFile[1] | ConvertTo-SecureString $customCredentials = New-Object System.Management.Automation.PSCredential -ArgumentList $user, $securePassword Write-Host "$(get-date) [SUCCESS] Returning credentials from $credentialsFilePath" -ForegroundColor Cyan } end { return $customCredentials } } #this function is used to prompt the user for a yes/no/skip response in order to control the workflow of a script function Write-CustomPrompt { <# .SYNOPSIS Creates a user prompt with a yes/no/skip response. Returns the response. .DESCRIPTION Creates a user prompt with a yes/no/skip response. Returns the response in lowercase. Valid responses are "y" for yes, "n" for no, "s" for skip. .NOTES Author: Stephane Bourdeaud (sbourdeaud@nutanix.com) .EXAMPLE .\Write-CustomPrompt Creates the prompt. .LINK https://github.com/sbourdeaud #> [CmdletBinding(DefaultParameterSetName = 'None')] #make this function advanced param () begin { [String]$userChoice = "" #initialize our returned variable } process { do {$userChoice = Read-Host -Prompt "Do you want to continue? (Y[es]/N[o]/S[kip])"} #display the user prompt while ($userChoice -notmatch '[ynsYNS]') #loop until the user input is valid $userChoice.ToLower() #change to lowercase } end { return $userChoice } } #end Write-CustomPrompt function #endregion New-Alias -Name Get-PrismRESTCall -value Invoke-PrismRESTCall -Description "Invoke Nutanix Prism REST call." |