CAN WE DEPLOY AZ B2C USING TERRAFORM AND DEVOPS ?

Greetings my fellow Technology Advocates and Specialists.

In this Session, I will demonstrate -

How to Validate Pre-Requisites of Azure B2C Tenant using DevOps.
If Azure B2C Tenant Deployment is Possible using Terraform and DevOps.

LIVE RECORDED SESSION:-
LIVE DEMO was Recorded as part of my Presentation in AZURE BACK TO SCHOOL - 2022 Forum/Platform
Duration of My Demo = 49 Mins 17 Secs

REQUIREMENTS:-

Azure Subscription.
Azure DevOps Organisation and Project.
Service Principal with Delegated Graph API Rights and Required RBAC (Typically Contributor on Subscription or Resource Group)
Azure Resource Manager Service Connection in Azure DevOps.
Microsoft DevLabs Terraform Extension Installed in Azure DevOps.

USE CASE #1:-
Validate Pre-Requisites of Azure B2C Tenant using DevOps

PIPELINE DETAILS FOLLOW BELOW:-

This is a Single Stage Pipeline with 3 Runtime Variables - 1) Subscription ID 2) Service Connection Name 3) Name of Azure B2C Tenant (This is the Only User Input Runtime Variable)
The Stage Checks for 2 Conditions: 1)If the Provider is Registered in the Subscription 2)If the B2C Name Provided by the user is Globally Unique. If Both Conditions are NOT met, Pipeline Fails, else the pipeline succeeds confirming that the Azure B2C Tenant Name can be used for Deployment.

HOW DOES MY CODE PLACEHOLDER LOOKS LIKE:-

AZURE DEVOPS YAML PIPELINE (azure-pipelines-B2C-v1.0.yml):-

trigger:
  none

######################
#DECLARE PARAMETERS:-
######################
parameters:
- name: SubscriptionID
  displayName: Subscription ID Details Follow Below:-
  default: 210e66cb-55cf-424e-8daa-6cad804ab604
  values:
  -  210e66cb-55cf-424e-8daa-6cad804ab604

- name: ServiceConnection
  displayName: Service Connection Name Follows Below:-
  default: amcloud-cicd-service-connection
  values:
  -  amcloud-cicd-service-connection

- name: AADB2CName
  displayName: Please Provide the AAD B2C Tenant Name:-
  type: object
  default: <Please Provide the Name of AAD B2C>

######################
#DECLARE VARIABLES:-
######################
variables:
  AADExists: AlreadyExists
  AADProvider: NotRegistered
  BuildAgent: windows-latest
  
#########################
# Declare Build Agents:-
#########################
pool:
  vmImage: $(BuildAgent)

###################
# Declare Stages:-
###################
stages:

- stage: VALIDATE_AAD_B2C_PROVIDER_AND_NAME
   
  jobs:
  - job: IF_AAD_B2C_PROVIDER_AND_NAME_EXISTS 
    displayName: IF AAD B2C PROVIDER AND NAME EXISTS
    steps:
    - task: AzureCLI@2
      displayName: CHECK AAD B2C PROVIDER AND NAME
      inputs:
        azureSubscription: ${{ parameters.ServiceConnection }}
        scriptType: ps
        scriptLocation: inlineScript
        inlineScript: |
          az --version
          az account set --subscription ${{ parameters.SubscriptionID }}
          az account show  
          $B2CJSON = @{
              countryCode = "CH"
              name = "${{ parameters.AADB2CName }}" 
            }
          $infile = "B2CDetails.json"
          Set-Content -Path $infile -Value ($B2CJSON | ConvertTo-Json)
          
          $i = az provider show --namespace "Microsoft.AzureActiveDirectory" --query "registrationState" -o tsv
          $j = az rest --method POST --url https://management.azure.com/subscriptions/${{ parameters.SubscriptionID }}/providers/Microsoft.AzureActiveDirectory/checkNameAvailability?api-version=2019-01-01-preview --body "@B2CDetails.json" --query 'reason' -o tsv
          

          if ($i -eq "$(AADProvider)" -and $j -eq "$(AADExists)") {
            echo "###############################################################"
            echo "Provider $(AADProvider) and Name $(AADExists)"
            echo "###############################################################"
            exit 1
            }
          
          elseif ($i -eq "$(AADProvider)" -or $j -eq "$(AADExists)") {
            echo "###############################################################"
            echo "Either Name $(AADExists) or Provider $(AADProvider)"
            echo "###############################################################"
            exit 1
            }
          else {
            echo "###############################################################"
            echo "MOVE TO NEXT STAGE - DEPLOY AZURE AAD B2C"
            echo "###############################################################"
            }

POWERSHELL MODULE (ValidateAADB2C.ps1): IF ANYONE INTENDS TO VALIDATE USING POWERSHELL ONLY (MINUS DEVOPS PIPELINE):-

$AADExists          = "AlreadyExists"
$AADProvider        = "NotRegistered"
$AADB2CCountryCode  = "CH"
$AADB2CName         = "AMTestb2ctenant005.onmicrosoft.com"
$AADB2CRest         = "https://management.azure.com/subscriptions/210e66cb-55cf-424e-8daa-6cad804ab604/providers/Microsoft.AzureActiveDirectory/checkNameAvailability?api-version=2019-01-01-preview"

$B2CJSON = @{
      countryCode   = "$AADB2CCountryCode"
      name          = "$AADB2CName"
    }
$infile = "B2CDetails.json"
Set-Content -Path $infile -Value ($B2CJSON | ConvertTo-Json)

$i = az rest --method POST --url $AADB2CRest  --body "@B2CDetails.json" --query 'reason' -o tsv

$j = az provider show --namespace "Microsoft.AzureActiveDirectory" --query "registrationState" -o tsv

if ($i -eq "$AADExists" -and $j -eq "$AADProvider") {
Write-Output "Name $AADExists and Provider $AADProvider"
}

ElseIf ($i -eq "$AADExists" -or $j -eq "$AADProvider") {
Write-Output "Either Name $AADExists or Provider $AADProvider"
}

Else {
Write-Output "MOVE TO NEXT STAGE - DEPLOY AZURE AAD B2C"
}

Now, let me explain each part of YAML Pipeline for better understanding.

PART #1:-

BELOW FOLLOWS PIPELINE RUNTIME VARIABLES CODE SNIPPET:-

######################
#DECLARE PARAMETERS:-
######################
parameters:
- name: SubscriptionID
  displayName: Subscription ID Details Follow Below:-
  default: 210e66cb-55cf-424e-8daa-6cad804ab604
  values:
  -  210e66cb-55cf-424e-8daa-6cad804ab604

- name: ServiceConnection
  displayName: Service Connection Name Follows Below:-
  default: amcloud-cicd-service-connection
  values:
  -  amcloud-cicd-service-connection

- name: AADB2CName
  displayName: Please Provide the AAD B2C Tenant Name:-
  type: object
  default: <Please Provide the Name of AAD B2C>

THIS IS HOW IT LOOKS WHEN YOU EXECUTE THE PIPELINE FROM AZURE DEVOPS:-

NOTE:-

Please Provide the Name of B2C in the Format - [NAME].onmicrosoft.com
For Example: AMTestb2ctenant005.onmicrosoft.com

PART #2:-

BELOW FOLLOWS PIPELINE VARIABLES CODE SNIPPET:-

######################
#DECLARE VARIABLES:-
######################
variables:
  AADExists: AlreadyExists
  AADProvider: NotRegistered
  BuildAgent: windows-latest

NOTE:-

Please feel free to change the values of the variables.
The entire YAML pipeline is build using Parameters and variables. No Values are Hardcoded.

PART #3:-

BELOW FOLLOWS PIPELINE STAGE VALIDATE_AAD_B2C_PROVIDER_AND_NAME CODE SNIPPET:-

###################
# Declare Stages:-
###################
stages:

- stage: VALIDATE_AAD_B2C_PROVIDER_AND_NAME
   
  jobs:
  - job: IF_AAD_B2C_PROVIDER_AND_NAME_EXISTS 
    displayName: IF AAD B2C PROVIDER AND NAME EXISTS
    steps:
    - task: AzureCLI@2
      displayName: CHECK AAD B2C PROVIDER AND NAME
      inputs:
        azureSubscription: ${{ parameters.ServiceConnection }}
        scriptType: ps
        scriptLocation: inlineScript
        inlineScript: |
          az --version
          az account set --subscription ${{ parameters.SubscriptionID }}
          az account show  
          $B2CJSON = @{
              countryCode = "CH"
              name = "${{ parameters.AADB2CName }}" 
            }
          $infile = "B2CDetails.json"
          Set-Content -Path $infile -Value ($B2CJSON | ConvertTo-Json)
          
          $i = az provider show --namespace "Microsoft.AzureActiveDirectory" --query "registrationState" -o tsv
          $j = az rest --method POST --url https://management.azure.com/subscriptions/${{ parameters.SubscriptionID }}/providers/Microsoft.AzureActiveDirectory/checkNameAvailability?api-version=2019-01-01-preview --body "@B2CDetails.json" --query 'reason' -o tsv
          

          if ($i -eq "$(AADProvider)" -and $j -eq "$(AADExists)") {
            echo "###############################################################"
            echo "Provider $(AADProvider) and Name $(AADExists)"
            echo "###############################################################"
            exit 1
            }
          
          elseif ($i -eq "$(AADProvider)" -or $j -eq "$(AADExists)") {
            echo "###############################################################"
            echo "Either Name $(AADExists) or Provider $(AADProvider)"
            echo "###############################################################"
            exit 1
            }
          else {
            echo "###############################################################"
            echo "MOVE TO NEXT STAGE - DEPLOY AZURE AAD B2C"
            echo "###############################################################"
            }

##	CONDITIONS APPLIED IN VALIDATE STAGE
1.	Firstly, it validates whether the Provider Microsoft.AzureActiveDirectory is Registered in the Subscription. If the Value returned is NotRegistered it means that condition is Not Met to Deploy B2C. az cli is used to validate the Registration of the Provider in the Subscription.
2.	Secondly, it validates whether the B2C Name Provided by the User is Globally Unique. If the Value returned is AlreadyExists it means that the condition is Not Met to Deploy B2C. REST API together with AZ REST is used to validate B2C Globally Unique Name.
3.	Expected value for Provider and B2C Name are: Registered and Null

TEST CASES:-

TEST CASE #1: B2C NAME IS GLOBALLY NOT UNIQUE AND PROVIDER REGISTERED IN THE SUBSCRIPTION :-
Desired Output: VALIDATE Stage FAILS
PIPELINE RUNTIME VARIABES:-

PIPELINE RESULTS:-

TEST CASE #2: B2C NAME IS GLOBALLY UNIQUE AND PROVIDER REGISTERED IN THE SUBSCRIPTION:-
Desired Output: VALIDATE Stage Executes SUCCESSFULLY.
PIPELINE RUNTIME VARIABES:-

PIPELINE RESULTS:-

USE CASE #2:-
Validate If Azure B2C Tenant Deployment is Possible using Terraform and DevOps

QUICK ANSWER:-
Azure B2C Tenant Deployment is Not Possible to deploy using Terraform and DevOps Together.
Azure B2C Tenant Deployment is Possible to deploy using Terraform only (By Manually Executing Terraform Init, Plan and Deploy)

PIPELINE DETAILS FOLLOW BELOW:-

This is a Two Stage Pipeline with 2 Runtime Variables - 1) Subscription ID 2) Service Connection Name
The Stages Performs Terraform INIT, PLAN and DEPLOY

HOW DOES MY CODE PLACEHOLDER LOOKS LIKE:-

DETAILS AND ALL CODE SNIPPETS FOLLOWS BELOW:-

TERRAFORM (main.tf):-

terraform {
  required_providers {
    azurerm = {
      source  = "hashicorp/azurerm"
      version = "~> 3.2"
    }
    azuread = {
      source  = "hashicorp/azuread"
      version = "~> 2.20.0"
    }
    
  }
}
provider "azurerm" {
  features {}
  skip_provider_registration = true
}

TERRAFORM (b2c.tf):-

## AAD B2C:-
resource "azurerm_aadb2c_directory" "Az_B2c" {
  country_code            = var.b2c-country-code
  data_residency_location = var.b2c-data-loc
  display_name            = var.b2c-name
  domain_name            = "${var.b2c-name}.onmicrosoft.com"
  resource_group_name     = var.b2c-rg
  sku_name                = var.b2c-sku
}

TERRAFORM (variables.tf):-

variable "b2c-name" {
  type        = string
  description = "Name of the B2C Tenant"
}

variable "b2c-country-code" {
  type        = string
  description = "Country Code of B2C"
}

variable "b2c-data-loc" {
  type        = string
  description = "Data Residency Location of B2C"
}

variable "b2c-rg" {
  type        = string
  description = "Resource Group of B2C"
}

variable "b2c-sku" {
  type        = string
  description = "Resource Group of B2C"
}

TERRAFORM (b2c.tfvars):-

b2c-country-code    = "CH"
b2c-data-loc        = "Europe"
b2c-name           = "AMTestb2ctenant005"
b2c-rg              = "_Admin-rg"
b2c-sku             = "PremiumP1"

NOTE:-
You may have noticed that I have put "b2c-name" as AMTestb2ctenant005. Please Refer Use Case #1, Test Case #2, where I have Validated this Name.

AZURE DEVOPS YAML PIPELINE (azure-pipelines-B2C-v1.1.yml):-

trigger:
  none

######################
#DECLARE PARAMETERS:-
######################
parameters:
- name: SubscriptionID
  displayName: Subscription ID Details Follow Below:-
  default: 210e66cb-55cf-424e-8daa-6cad804ab604
  values:
  -  210e66cb-55cf-424e-8daa-6cad804ab604

- name: ServiceConnection
  displayName: Service Connection Name Follows Below:-
  default: amcloud-cicd-service-connection
  values:
  -  amcloud-cicd-service-connection

######################
#DECLARE VARIABLES:-
######################
variables:
  ResourceGroup: tfpipeline-rg
  StorageAccount: tfpipelinesa
  Container: terraform
  TfstateFile: B2C/b2cdeploy.tfstate
  BuildAgent: windows-latest
  WorkingDir: $(System.DefaultWorkingDirectory)/B2C-Terraform
  Target: $(build.artifactstagingdirectory)/AMTF
  Environment: NonProd
  Artifact: AM

#########################
# Declare Build Agents:-
#########################
pool:
  vmImage: $(BuildAgent)

###################
# Declare Stages:-
###################
stages:

- stage: PLAN
  jobs:
  - job: PLAN
    displayName: PLAN
    steps:
# Install Terraform Installer in the Build Agent:-
    - task: ms-devlabs.custom-terraform-tasks.custom-terraform-installer-task.TerraformInstaller@0
      displayName: INSTALL TERRAFORM VERSION - LATEST
      inputs:
        terraformVersion: 'latest'
# Terraform Init:-
    - task: TerraformTaskV2@2
      displayName: TERRAFORM INIT
      inputs:
        provider: 'azurerm'
        command: 'init'
        workingDirectory: '$(workingDir)' # Az DevOps can find the required Terraform code
        backendServiceArm: '${{ parameters.ServiceConnection }}' 
        backendAzureRmResourceGroupName: '$(ResourceGroup)' 
        backendAzureRmStorageAccountName: '$(StorageAccount)'
        backendAzureRmContainerName: '$(Container)'
        backendAzureRmKey: '$(TfstateFile)'
# Terraform Validate:-
    - task: TerraformTaskV2@2
      displayName: TERRAFORM VALIDATE
      inputs:
        provider: 'azurerm'
        command: 'validate'
        workingDirectory: '$(workingDir)'
        environmentServiceNameAzureRM: '${{ parameters.ServiceConnection }}'
# Terraform Plan:-
    - task: TerraformTaskV2@2
      displayName: TERRAFORM PLAN
      inputs:
        provider: 'azurerm'
        command: 'plan'
        workingDirectory: '$(workingDir)'
        commandOptions: "--var-file=b2c.tfvars --out=tfplan"
        environmentServiceNameAzureRM: '${{ parameters.ServiceConnection }}'
    
# Copy Files to Artifacts Staging Directory:-
    - task: CopyFiles@2
      displayName: COPY FILES ARTIFACTS STAGING DIRECTORY
      inputs:
        SourceFolder: '$(workingDir)'
        Contents: |
          **/*.tf
          **/*.tfvars
          **/*tfplan*
        TargetFolder: '$(Target)'
# Publish Artifacts:-
    - task: PublishBuildArtifacts@1
      displayName: PUBLISH ARTIFACTS
      inputs:
        targetPath: '$(Target)'
        artifactName: '$(Artifact)' 

- stage: DEPLOY
  condition: succeeded()
  dependsOn: PLAN
  jobs:
  - deployment: 
    displayName: Deploy
    environment: $(Environment)
    pool:
      vmImage: '$(BuildAgent)'
    strategy:
      runOnce:
        deploy:
          steps:
# Download Artifacts:-
          - task: DownloadBuildArtifacts@0
            displayName: DOWNLOAD ARTIFACTS
            inputs:
              buildType: 'current'
              downloadType: 'single'
              artifactName: '$(Artifact)'
              downloadPath: '$(System.ArtifactsDirectory)' 
# Install Terraform Installer in the Build Agent:-
          - task: ms-devlabs.custom-terraform-tasks.custom-terraform-installer-task.TerraformInstaller@0
            displayName: INSTALL TERRAFORM VERSION - LATEST
            inputs:
              terraformVersion: 'latest'
# Terraform Init:-
          - task: TerraformTaskV2@2 
            displayName: TERRAFORM INIT
            inputs:
              provider: 'azurerm'
              command: 'init'
              workingDirectory: '$(System.ArtifactsDirectory)/$(Artifact)/AMTF/' # Az DevOps can find the required Terraform code
              backendServiceArm: '${{ parameters.ServiceConnection }}' 
              backendAzureRmResourceGroupName: '$(ResourceGroup)' 
              backendAzureRmStorageAccountName: '$(StorageAccount)'
              backendAzureRmContainerName: '$(Container)'
              backendAzureRmKey: '$(TfstateFile)'
# Terraform Apply:-
          - task: TerraformTaskV2@2
            displayName: TERRAFORM APPLY # The terraform Plan stored earlier is used here to apply only the changes.
            inputs:
              provider: 'azurerm'
              command: 'apply'
              workingDirectory: '$(System.ArtifactsDirectory)/$(Artifact)/AMTF'
              commandOptions: '--var-file=b2c.tfvars' # The terraform Plan stored earlier is used here to apply. 
              environmentServiceNameAzureRM: '${{ parameters.ServiceConnection }}'

Now, let me explain each part of YAML Pipeline for better understanding.

PART #1:-

BELOW FOLLOWS PIPELINE RUNTIME VARIABLES CODE SNIPPET:-

######################
#DECLARE PARAMETERS:-
######################
parameters:
- name: SubscriptionID
  displayName: Subscription ID Details Follow Below:-
  default: 210e66cb-55cf-424e-8daa-6cad804ab604
  values:
  -  210e66cb-55cf-424e-8daa-6cad804ab604

- name: ServiceConnection
  displayName: Service Connection Name Follows Below:-
  default: amcloud-cicd-service-connection
  values:
  -  amcloud-cicd-service-connection

THIS IS HOW IT LOOKS WHEN YOU EXECUTE THE PIPELINE FROM AZURE DEVOPS:-

PART #2:-

BELOW FOLLOWS PIPELINE VARIABLES CODE SNIPPET:-

######################
#DECLARE VARIABLES:-
######################
variables:
  ResourceGroup: tfpipeline-rg
  StorageAccount: tfpipelinesa
  Container: terraform
  TfstateFile: B2C/b2cdeploy.tfstate
  BuildAgent: windows-latest
  WorkingDir: $(System.DefaultWorkingDirectory)/B2C-Terraform
  Target: $(build.artifactstagingdirectory)/AMTF
  Environment: NonProd
  Artifact: AM

NOTE:-

Please feel free to change the values of the variables.
The entire YAML pipeline is build using Parameters and variables. No Values are Hardcoded.
"Working Directory" Path should be based on your Code Placeholder.
"Environment" here refers to Pipeline Environment Name where Approval Gate is configured.

PART #3:-

##	TASKS PERFORMED UNDER PLAN STAGE
1.	Install Latest Version of Terraform in Build Agent
2.	Terraform Init
3.	Terraform Validate
4.	Terraform Plan
5.	Copy Files to Artifacts Staging Directory
6.	Publish Artifacts

NOTE:-

- task: ms-devlabs.custom-terraform-tasks.custom-terraform-installer-task.TerraformInstaller@0

Explanation:-
Instead of using TerraformInstaller@0 YAML Task, I have specified the Full Name. This is because I have Multiple Terraform Extensions in my DevOps Organisation and with each of the terraform Extension exists the Terraform Install Task

PART #4:-

##	TASKS PERFORMED UNDER DEPLOY STAGE
1.	Previous Stage PLAN should complete Successfully in order for this Stage DEPLOY to Proceed. Otherwise, the Stage will get skipped
2.	Download Published Artifacts
3.	Terraform Init
4.	Terraform Apply

TEST CASES:-

TEST CASE #1: B2C NAME IS GLOBALLY NOT UNIQUE AND PROVIDER REGISTERED IN THE SUBSCRIPTION :-
Desired Output: PLAN Stage is SUCCESSFUL but DEPLOY Stage FAILS
PIPELINE RESULTS:-
Waiting for Approval

DEPLOY Stage FAILED

ERROR ENCOUNTERED:-

REASON:-
It occurs when using a Service Principal. When creating an Azure B2C directory, the user who creates it becomes the owner of the new directory by default. This is achieved by the user account being added to the B2C directory as an External Member from the parent directory.
Service Principals cannot be added as external members of other directories, therefore it's NOT POSSIBLE for a Service Principal to create a B2C directory
The Issue is Recorded in Github - hashicorp/terraform-provider-azurerm#14941

DEPLOY AZURE B2C USING TERRAFORM ONLY (By Manually Executing Terraform Init, Plan and Deploy) :-

COMMANDS:-

terraform init

terraform plan --var-file="b2c.tfvars"

terraform apply --var-file="b2c.tfvars"

OUTPUT:-

HOW DOES THE PLACEHOLDER LOOKS LIKE AFTER TERRAFORM EXECUTION :-

Hope You Enjoyed the Session!!!

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CAN WE DEPLOY AZ B2C USING TERRAFORM AND DEVOPS ?

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Name		Name	Last commit message	Last commit date
Latest commit History 16 Commits
README.md		README.md
ValidateAADB2C.ps1		ValidateAADB2C.ps1
azure-pipelines-B2C-v1.0.yml		azure-pipelines-B2C-v1.0.yml
azure-pipelines-B2C-v1.1.yml		azure-pipelines-B2C-v1.1.yml
b2c.tf		b2c.tf
b2c.tfvars		b2c.tfvars
main.tf		main.tf
variables.tf		variables.tf

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