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terraform azure get service principal

What should have happened? You will often see examples of Terraform resource types where the service principal is created manually. Here are the answers to the challenge part of the lab. You can search on subscriptions at the top of the portal, or look at the properties in the portal blade of any resource group or resource. There are many ways of finding the subscription GUID. If you are doing any of the following then your service principal will require a custom RBAC role and assignment: The definition of the in-built Contributor role has a number of NotActions, such as Microsoft.Authorization/*/Write. Registry . Any of the following are valid: Change to “/” to allow the role to be assigned to all subscriptions (and child scopes), Provide a list of subscription (or resource group) resource IDs as scopes, For example, if you need your Terraform service principal to assign inbuilt roles to scopes, then delete the two lines for, There is a corresponding read action for those lines that is implicitly allowed. In my example I will deploy a Storage Account tamopssatf inside a Resource Group tamops-tf (Notice the reference to the tfstate resource_group_name, storage_account_name and container_name. In this deployment, I want to store the state file remotely in Azure; I will be storing my state file in a Storage Account container called:- tfstatedevops, Lets deploy the required storage container called tfstatedevops in Storage Account tamopstf inside Resource Group tamopstf. For Windows 10 then the minimum is to use both terraform and az at the Windows OS level so that you can use them within a Command Prompt or PowerShell session. From the az CLI you can run `az account show --output json`. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. When you create a Service Principal then from an RBAC perspective it will, by default, have the Contributor role assigned at the subscription scope level. e.g.. data.azurerm_client_config.main.service_principal_object_id. Service principal is created in Azure AD, has a unique object ID (GUID) and authenticate via certificates or secret. Create a file called manifest.json, containing the following JSON: Get the ID for the service principal’s application: Show the API Permissions in the application’s manifest: Update the API Permissions with the manifest, Rerun the command to show the API permissions, Find your subscription ID and copy the GUID to the clipboard. ( Log Out /  Change ). The Terraform service principal will now be able to use the azurerm_service_principal provider type. which tenancy and subscription). If you followed this blog post, you now have a good solid introduction into how you can create your Terraform code and run successfully using Azure DevOps to deploy Azure Resources! Linux and MacOS users are well catered for as vscode is cross-platform and the standard packages (az, terraform) are easily installed. Nevermind, I made a silly mistake, instead of “example.tf”, I had “example.cf”. readyTimeout: ‘20000’, ##[error]Error: Input required: sshEndpoint. A Service Principal is a security principal within Azure Active Directory which can be granted permissions to manage objects in Azure Active Directory. After the change it worked as you outlined. As you can tell from the labs, I like to automate wherever possible. Could mail me some screenshot and your Azure devops pipeline? Browse to the URL, enter the code, and follow the instructions to … The approach here applies to any more complex environment where there are multiple subscriptions in play, as well as those supporting multiple tenancies or directories. We have reached the end of the lab. Follow the portal steps to navigate to the API Permissions dialog and then click on the button to grant consent. Terraform should have created an application, a service principal and set the given random password to the service principal. The script will also set KeyVault secrets that will be used by Jenkins & Terraform. It continues to be supported by the community. To authenticate using Azure CLI, we type:. This has az, jq and terraform pre-installed and defaults to using MSI so the whole VM is authenticated to a subscription. Change ), You are commenting using your Facebook account. NOTE: The Azure Service Management Provider has been superseded by the Azure Resource Manager Provider and is no longer being actively developed by HashiCorp employees. The following commands will download it and run it: You can also download a short splogin.sh script that logs in as the service principal if you have a populated provider.tf file: Note that if you have lost the password values at any point then you can always use the following command to generate a new password: Note the full name for a Service Principal is the display name we specified in the initial creation, prefixed with http:// You will need to have the correct level of role based access to display or reset credentials. All arguments including the service principal password will be persisted into Terraform state, into any plan files, and in some cases in the console output while running terraform plan and terraform apply. You will need to be at the Owner or equivalent level to complete this section. ( Log Out /  You create a service principal for Terraform with the respective rights needed on Azure (it might be a highly privileged service principal depending on what you deploy via Terraform) and configure Azure DevOps to use this service principal every time … Don’t push up sensitive values up into a public GitHub repository! Searching on "azure cli service principal" takes you to https://docs.microsoft.com/en-us/cli/azure/create-an-azure-service-principal-azure-cli.This includes sections on deleting and creating role assigments. The CLI commands are listed below for completeness. In the following commands, substitute 00000000-0000-0000-0000-000000000000 with your subscription GUID. For more information, visit the Azure documentation . Terraform is an open-source infrastructure as code software tool that enables you to safely and predictably create, change, and improve infrastructure. Microsoft Azure offers a few authentication methods that allow Terraform to deploy resources, and one of them is an SP account.. Using service principals is an easy and powerful way of managing multi-tenanted environments when the admins are working in a centralised Terraform environment. Tags: If you are creating resource groups (and standard resources within them) then a Terraform service principal with the standard Contributor role assigned at the subscription level is the most common configuration you will see. Do reach out if you have any queries and feel free to check my other blog posts out 👍. Can you help me with post install script. Don’t forget to follow the guide to also install az, jq, git and terraform at that level. In these scenarios, an Azure Active Directory identity object gets created. This access is restricted by the roles assigned to the service principal, giving you control over which resources can be accessed and at which level. An Azure service principal is an identity created for use with applications, hosted services, and automated tools to access Azure resources. It is used as an identity to authenticate you within your Azure Subscription to allow you to deploy the relevant Terraform code. > az account list --query [*]. Change ), You are commenting using your Twitter account. Hi network geek and thank you for your feedback. When deploying Terraform there is a requirement that it must store a state file; this file is used by Terraform to map Azure Resources to your configuration that you want to deploy, keeps track of meta data and can also assist with improving performance for larger Azure Resource deployments. When using PowerShell and Terraform, you must log in using a service principal. Service Principals are security identities within an Azure AD tenancy that may be used by apps, services and automation tools. So far we have been authenticating using either Cloud Shell (labs 1 and 2) or Azure CLI (labs 3 and 4), which both work really well for one person when doing demos and a little development work. 4. I have the “example.tf” file on Azure DevOps repo. ... To create an Azure resource with Terraform requires using a Terraform provider. This state is used by Terraform to map real world resources to your configuration, keep track of metadata, and to improve performance for large infrastructures. Heres a MS article to add code to repo:- https://docs.microsoft.com/en-us/azure/devops/repos/git/create-new-repo?view=azure-devops, Feel free to reach out to me on Twitter to discuss further or reply to comment, Thank you for reading the blog post, hope you enjoyed it. Create a file called terraform.customrole.json, containing the following: Customise the AssignableScopes. Service Principals are also the recommended route if you are integrating the Terraform Provider into automation or within a DevOps CI/CD pipeline. It was really useful. Service principals work really well in a multi-tenanted environment as the service principal authentication details can sit directly in the relevant terraform directory so that it is easy to define the target subscription and tenancy and tightly connect it with the other infrastructure definitions. Terraform will use the service principal to authenticate and get access to your Azure subscription. Azure Provider: Authenticating using the Azure CLI. In the 2.0 changes, the azurerm_client_config has depreciated service_principal When authenticating using the Azure CLI or a Service Principal: When authenticating using Managed Service Identity (MSI): When authenticating using the Access Key associated with the Storage Account: When authenticating using a SAS Token associated with the Storage Account: The reason an SP account is better than other methods is that we don’t need to log in to Azure before running Terraform. If you want to automate the process then feel free to make use of this createTerraformServicePrincipal.sh script to create a service principal and provider.tf: https://github.com/azurecitadel/azurecitadel.github.io/blob/master/automation/terraform/createTerraformServicePrincipal.sh. The Service Principal will be granted read access to the KeyVault secrets and will be used by Jenkins. Once the node build is done I can login using these credentials. Using aliases can be of use in a customer environment where they want to configure a deployment across multiple subscriptions or clouds. If you get stuck then there are answers at the bottom of the lab. hi @jbardin I've added those values to backend configuration and now terraform init works but still cannot get past terraform plan without env variables ARM_SUBSCRIPTION_ID and ARM_TENANT_ID exported.. terraform { backend "azurerm" { tenant_id = "XXXXXXX" subscription_id = "XXXXXXX" resource_group_name = "my-resource-group" storage_account_name = "my-storage-account" … Let’s take the example of customer with one subscription for the core services and another for the devops team. This section deals with the additional configuration required to enhance your Terraform service principal’s abilities and widen the provider types it can apply and destroy. Click to share on Twitter (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Reddit (Opens in new window), Click to share on WhatsApp (Opens in new window), Click to email this to a friend (Opens in new window), Prevent unexpected high Azure spending by setting Budgets and cost alerts in your subscription, https://docs.microsoft.com/en-us/azure/devops/repos/git/create-new-repo?view=azure-devops, Top Stories from the Microsoft DevOps Community – 2020.07.10 - Microsoft Today, Validating Terraform Code During A Pull Request In Azure DevOps - Thomas Thornton, Deploying Terraform from develop to production consecutively using Azure DevOps – Thomas Thornton, Deploying Terraform using Azure DevOps with Build Artifacts – Thomas Thornton, Terraforming from zero to pipelines as code with Azure DevOps – Thomas Thornton, Network Security Group Rule Creation using Terraform, Creating custom runbooks from start/stop VM solution for specific sets of VMs using tags for sequenced start/stop. The pipeline I showed was a simple execution, you can configure this further depending on your requirements but hopefully a good base-line to get you started! ( Log Out /  Hi Ashley, I had referenced undwr the Terraform code “Deploy this into your repo” – see “sample terraform code section”. Create it by going to Project settings → Service connections and hit new service connection from the top right corner. Nice! This is done within “Manage Service Principal”, Settings -> Properties and change Name as below. Note that there does not appear to be a CLI command to grant admin consent for the Default Directory. Your .tf files should look similar to those in https://github.com/richeney/terraform-pre012-lab5. The following arguments are supported: application_id - (Optional) The ID of the Azure AD Application. If we login to Azure CLI with this SP, we can manage Management Groups without a problem. The azure_admin.sh script located in the scripts directory is used to create a Service Principal, Azure Storage Account and KeyVault. Azure service principal permissions Does anyone know if you can use terraform without using a service principal that has the Contributor role in azure ad? You should always remove the Contributor role when adding a different inbuilt or custom role to a service principal. If you want to explore other options in a multi-tenanted environment then take a look at the following: In the next lab we will look at the terraform.tfstate file. Terraform will use the service principal to authenticate and get access to your Azure subscription. subscription_id - (Required) The subscription GUID. Example 1 - List AD service principals PS C:\> Get-AzureRmADServicePrincipal. You can then specify that provider alias in your resource stanzas. Have I done something wrong? Search for the documentation to create an Azure service principal for use with Terraform, Log back in with your normal Azure ID and show the context, Search for the Azure Docs for changing the role (and scope) for the service principal. This is an overview of the steps if you want to do this manually: Here is an example provider.tf file containing a populated azurerm provider block: In a production environment you would need to ensure that this file has appropriate permissions so that the client_id and client_secret does not leak and create a security risk. had wrote the blog in understanding that those who follow had worked with Azure Devops before. Documented role assignment here by Microsoft, We’re now near ready to configure your DevOps pipeline; but first! The page itself does not mention scope, but clicking on the az role assignment create link takes you through to the https://docs.microsoft.com/en-us/cli/azure/role/assignment#az-role-assignment-create reference page. What you could do is to have a CI/CD pipelining tool such as Azure DevOps in place. Terraform must store state about your managed infrastructure and configuration. It is used as an identity to authenticate you within your Azure Subscription to allow you to deploy the relevant Terraform code. I will show you in this blog how you can deploy your Azure Resources created in Terraform using Azure DevOps finishing with an example .yml pipeline. For example: And don’t forget that different service principals can have different scopes and roles within a subscription so that may also come in useful depending on the requirement. Here are a few: Searching on "terraform azure service principal" takes you to https://www.terraform.io/docs/providers/azurerm/authenticating_via_service_principal.html. For example, by adding the following lines to a .bashrc file: If you are using environment variables then the provider block should be empty: Note that this approach is not as effective if you are moving between terraform directories for different customer tenancies and subscriptions, as you need to export the correct variables for the required context, but it does have the benefit of not having the credentials visible in one of the *.tf files. wonder if you could help please? If you see your current context (as shown by az account show) then that will show the authentication type (if not explicitly) and also shows the tenancy and subscription you will be deploying into. In this blog, I will show you how to create this manually (there is PowerShell / CLI but within this example I want you to understand the initial setup of this), To begin creation, within your newly created Azure DevOps Project – select Project Settings, Select Create Service Connection -> Azure Resource Manager -> Service Principal (Automatic), For scope level I selected Subscription and then entered as below, for Resource Group I selected tamopstf which I created earlier, Once created you will see similar to below, You can select Manage Service Principal to review further, When creating this way, I like to give it a relevant name so I can reference my SPN easier within my Subscription. This does not need special permissions but is less automated. We recommend using the Azure Resource Manager based Microsoft Azure Provider if possible. Lets have a look at each of these requirements; I will include an example of each and how you can configure. I’m seeing the same issue. runOptions: ‘script’ I am using the marked values from the screenshot as tenant_id and object_id in the already existing Service Principal: Steps to Reproduce. A Service Principal (SPN) is considered a best practice for DevOps within your CI/CD pipeline. Having a separate terraform folder per customer or environment with its own provider.tf files is very flexible. This should be an empty array ([]) at this point. Start using Service Principals to manage multiple subscriptions and Azure tenants, Cloud Solution Architect.Infrastructure as code, automation, networking, storage, compute. You can also reference your SPN easier if you want to give it further IAM control to your subscription, in this setup I also give the SPN “contributor” access to my subscription. 04/06/2020 Kevin Comments 0 Comment. (The provider stanza can be in any of the .tf files, but provider.tf is common.). To be able to deploy to Azure you’d need to create a service principal. The command has a --scope switch that defaults to the subscription but can be set to another scope point such as a resource group or an individual resource. terraform, Adding API Permissions to Azure Active Directory, https://github.com/azurecitadel/azurecitadel.github.io/blob/master/automation/terraform/createTerraformServicePrincipal.sh, https://github.com/richeney/terraform-pre012-lab5, Login as the service principal to test (optional), Create a azurerm provider block populated with the service principal values, Export environment variables, with an empty azurerm provider block, Modify the service principal’s role and scope (optional), Add application API permissions if required (optional), There is no need to change the role or scope at this point - this is purely for info, The service will list out apps registered for the service principals, create the service principal (or resets the credentials if it already exists), prompts to choose either a populated or empty provider.tf azurerm provider block, exports the environment variables if you selected an empty block (and display the commands), display the az login command to log in as the service principal, Creating RBAC roles and assigning against scopes, Creating and assigning policy definitions and initiatives. – task: SSH@0 Hi, I was following your instructions and they look pretty good, but I have gotten to the part of creating the repo and getting the example.tf file into it. This information is obtained from the Azure Graph API (located at https://graph.windows.net) - as such the Service Principal being used must have access to this, which I believe is the issue here - can you take a look and see if granting the Service Principal being used read-only access to this API works? Helped me big time! It also mitigates common admin errors such as terraform commands being run whilst in the wrong context. The next two sections will illustrate the following tasks: Create an Azure service principal; Log in to Azure using a service principal; Create an Azure service principal. In my code I identify the Object ID of the service principle that the pipeline is running with so that I can provide it with some permissions. Consider this the default. You can give this registered app additional permissions for various APIs. Using a Service Principal, also known as SPN, is a best practice for DevOps or CI/CD environments and is one of the most popular ways to set up a remote backend and later move to CI/CD, such as Azure DevOps.. First, we need to authenticate to Azure. Note the warning showing that admin consent is required. Please enable Javascript to use this application If you have Windows 10 and can enable WSL then it is very much recommended. Using Terraform to deploy your Azure resources is becoming more and more popular; in some instances overtaking the use of ARM to deploy into Azure. Please help. Thanks for the comment – I have included the Terraform documentation on “state”, hope this helps – let me know, https://www.terraform.io/docs/state/index.html, Hi, However, I see “Error: No configuration files” in the deployment stage. See the role definition by running az role definition list --name Contributor. Thanks for the blog! A Service Principal is an application within Azure Active Directory whose authentication tokens can be used as environment variables in Terraform Cloud. Create a Service Principal. inputs: Post was not sent - check your email addresses! If you do not have an alias specified in a provider block then that is your default provider, so adding aliases creates additional providers. Lists all AD service principals in a tenant. I authored an article before on how to use Azure DevOps to deploy Terraform A Service Principal is like a service account you create yourself, where a Managed Identity is always linked to an Azure Resource. In this lab we will look at how we could make our Terraform platform work effectively in a multi-tenanted environment by using Service Principals. Authenticate via Microsoft account Calling az login without any parameters displays a URL and a code. object_id - (Optional) The ID of the Azure AD Service Principal. For most applications you would remove that and then assign a more limited RBAC role and scope assignment, but this default level is ideal for Terraform provisioning. scriptPath: ‘new-node-setup.sh’ Sorry, your blog cannot share posts by email. Below doesn’t work. The project in this tutorial will interact with Azure. In this challenge you will create a service principal called terraform-labs--sp. tenant_id - (Required) The ID of the Tenant the Service Principal is assigned in. A service connection enables you to hook-up the AzureDevOps project to the magical fairy-cloud of Azure. Glad you got the issue resolved! Service Principals are security identities within an Azure AD tenancy that may be used by apps, services and automation tools. These are:-. A Service Principal (SPN) is considered a best practice for DevOps within your CI/CD pipeline. This SP has Owner role at Root Management Group. And you are still free to use service principals in preference to MSI. Deploying Terraform using Azure DevOps, requires some sort of project; in this blog I will create a new project, This is documented already by Microsoft here, I recommend this guide to show you how to setup a DevOps Project similar to mine below, The DevOps Project in my example will be called TamOpsTerraform as below. You can list those out using the following command: For the moment we only want the roleAssignments and roleDefinitions actions and therefore the rest should remain as specified NotActions. Enter your email address to follow this blog and receive notifications of new posts by email. data "azuread_service_principal" "example" {object_id = "00000000-0000-0000-0000-000000000000"} Argument Reference. Most importantly, GitHub will need access to an Azure subscription to deploy resources into. When using Terraform from code, authenticating via Azure service principal is one recommended way. 'Authenticate using a Service Principal' To authenticate to Azure using a Service Principal, you can use the separate auth method - instructions for which can be found here:' My main.tf contains: ... Give Terraform Service Principal Contributor but remove from Key Vault. Just to make it clear: I have a script “new-node.sh” which is in my DevOps repo and I want to run after the node build is done within the same pipeline. Azure AD Service Principal Create a service principal and configure it's access to Azure resources. Blueprint write and delete actions are prohibited. Granting consent requires a few REST API calls. We use a Service Principal to connect to out Azure environment. In a previous article I talked about how you need to set the following variables in your pipeline so that Terraform can access Azure:ARM_CLIENT_ID = This is the application id from the service principal in Azure AD; ARM_CLIENT_SECRET = This is the secret for the service principal in Azure AD For a standard multi-tenancy environment then you would create a service principal per subscription and then create a provider block for each terraform folder. List the roles assigned at the subscription level: Creating service principals and applications, azurerm_azuread_service_principal_password, Search for “App Registrations” in All Services, Select the Azure Active Directory Graph in the Supported legacy APIs section, View the additional permissions in code form, Scroll down to the requiredResourceAccess section, Grant admin consent for Default Directory. My example Pipeline consists of snippets from this GitHub, Validate:- To Validate my Terraform code, if validation fails the pipeline fails (consists of Terraform init & validate), Deploy:- if Validation is successful, it moves to next stage of pipeline which is Deploying the Terraform code to deploy required Azure Resources (consists of Terraform plan & deploy), Throughout the Pipeline, notice my reference to the previously created Storage Account, Resource Group and container for the Terraform state file along with the newly created SPN? Install the Terraform extension/task from here, The Terraform task enables running Terraform commands as part of Azure Build and Release Pipelines providing support for the following Terraform commands, Once installed, we can now configure a pipeline, Now you are Produced with an .yml format. There is another less frequently used argument that you can specify in the provider block called alias. Service Principal. Can you explain how exactly the build environment uses the state file to only add the infrastructure changes but not deploy them all over again? Further understand documented here, YML example Pipelines and further Terraform info is found here. certificate_thumbprint - (Required) The thumbprint of the Service Principal Certificate.

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