Hashicorp’s official docs on this topic can be found here. Azure Storage encryption is similar to BitLocker encryption on Windows. the name of the blob that will store Terraform … With. Azure Storage encryption cannot be disabled. Because your data is secured by default, you don't need to modify your code or applications to take adv… We can also use Terraform to create the storage account in Azure Storage.. We create a file called az-remote-backend-variables.tf and add this code: # company variable "company" {type = string description = "This variable defines the name of the company"} # environment variable "environment" {type = string … { Terraform needs an Azure AD service principal that is created using the following bash/Azure CLI commands: The service principal is used for Terraform to authenticate against your Azure environment. Change ). I want to create a VM and put its VHD into an encrypted storage account. We can enable versioning by going to azure portal -> azure storage account -> blob service -> data protection -> select check box for ‘turn on versioning’: So our ultimate design should look like: Do you want to destroy it just to rebuild the environment? Cloud Security Enthusiast | Security Advocate Even in the above scenario, how do you provision the user who runs terraform at that point? Snapshot s of st at e file dat a – Routine snapshotting of the state file protects against accidental file deletion. When you remove resource information from your template files, Terraform will remove the respective Azure resources as soon as you apply the new config. When you store the Terraform state file in an Azure Storage Account, you get the benefits of RBAC (role-based access control) and data encryption. So if you save the section in your ./bash_profile these variables are exported to your shell environment every time you start a new shell session. Step 1 — Remote State with Storage Account . It continues to be supported by the community. the following passage is an Azure CLI script to create the service principal which is used for Terraform later: ARM_SUBSCRIPTION_ID=yourSubscriptionID There are multiple benefits to using a Remote backend: Now your terraform state file is centrally managed and all the team members can access it and make changes to it. Terraform – use Azure KeyVault secrets during deployments, Terraform – use Azure KeyVault secrets during deployments – Azure and beyond, Terraform – use Azure KeyVault secrets during deployments - SP&C NL, Changing the pink for the blue pill – my next adventure, Mastering Azure Security – my latest adventure, the ability to test deployments before applying changes. Now we have an instance of Azure Blob Storage being available somewhere in the cloud; Different authentication mechanisms can … }. You could also manually run the section in your bash shell but storing those values in you profile will make it even easier. Enter your email address to follow this blog and receive notifications of new posts by email. A single DynamoDB table can be used to lock multiple remote state files. Create a service principal for authentication: Configuring the Remote Backend to use Azure Storage: Terraform backend is a useful feature to solve pain points that afflict teams at a certain scale and makes it more friendly to use with multiple clouds. The timeouts block allows you to specify timeouts for certain actions:. Quick question: In the section on setting up Terraform to use the service principle that we setup, (Dumb question coming up) where or how is the following information used? Timeouts. When you store the Terraform state file in an Azure Storage Account, you get the benefits of RBAC (role-based access control) and data encryption. Add S3 and DynamoDB details in backend S3 resource in Terraform configuration file: Azure Blob Storage supports both state locking and consistency checking natively. Lots of administrators and operators I have talked with so far have complained about the difficult JSON syntax ARM templates come with. Published 24 days ago Apply a Delet e Lock t o t he st orage account – Only accounts with “Owner” role access will be able to remove the lock and delete; the state file blob. We also want any of our developers to be able to use Terraform, but have none of the provider information available to them. the ability to change existing deployments. Is this saved in a file and then run using terraform or do I need to have a “bash” utility to run code similar to how PowerShell would work? In Terraform it’s only this: You can add more information such as tags, however, the code above is all you need. In your Windows subsystem for Linux window or a bash prompt from within VS … “name”: “http://azure-cli-2019-01-24-11-58-24”, Get the Storage Account Key. The Terraform top level keyword is resource. The “export” command on Unix and Linux operating systems is used for storing values to environment variables in your shell session. create - (Defaults to 30 minutes) Used when creating the Storage Account Customer Managed Keys. For example, you can only access an Azure KeyVault secret during your VM deployment if you do not use Azure portal. Terraform generates key names that include the values of the bucket and key variables. Current solution: deploy file share with template. So, first thing we need to do is to prepare our local computer for using terraform. Is Hns Enabled bool Account HierarchicalNamespace enabled if sets to true. you can not only deploy new environments, you can also apply changes in existing deployments. Published 17 days ago. Run the following command: In today’s multi cloud environment, it is beneficial to use automation patterns you can repeat across multiple environments. Version 2.37.0. It introduced sensitive variables that enables you to keep these outputs clean. key_vault_key_id - The ID of the Key Vault Key. What IAM permissions will be set on the Azure Storage Account? So it’s getting quite easy to get rid of old, no longer needed, resources. This is not just a technical problem, it is also a process question you need to answer. Of course, we do not want to have passwords stored locally on any DevOps engineer’s device so we need to put some more effort in it. Encryption Encryption Not applicable. Next, we need to get the storage account key for our new SA. But if 2 changes are being made in parallel then that can corrupt the state file. export ARM_ENVIRONMENT=public. key: The name of the state store file to be created. In addition to the Arguments listed above - the following Attributes are exported: id - The ID of the Storage Encryption Scope. So your end user accounts are not privileged but eligible to log on to Azure DevOps and start the deployment process from there. This is a really interesting article, but doesn’t solve (for me, anyway) the chicken-and-egg problem of service principals and Terraform. You can find my example templates in my Azure Security Github repository. Thanks for this article! However, S3 doesn’t support the state locking functionality and this can be achieved by using DynamoDB. In the Azure Portal, we can see our new Storage Account, ‘sa01azuredevops’. » azure_storage_container Cloud Security Enthusiast | Security Advocate. Imagine you have an existing deployment and want to change only parts of it. Azure Storage supports encryption at rest either with a Microsoft managed key or your own key. This does not protect us against someone who gains access to the storage account from downloading and reading the file, but it at least prevents someone from gaining access to the backend. Large File Shares State string | string Allow large file shares if sets to Enabled. Terraform is an open-source toolkit for infrastructure-as-code deployments. storage_account_name: The name of the Azure Storage account. Only CI - Any non-CI access to the storage account is monitored and needs preapproval. My bad, I meant this set of code… where is this run or saved to? Blob versioning is a relatively new feature in Azure Storage Account and it is not yet covered by Terraform provider. To enable Terraform to use this information, you need to copy some of the above command’s output: Now you can configure environmental variables for Terraform with the information above and either export the following environment variables or configure a Terraform provider: To export the variables you run the code above in you bash shell session or store it in your ./bash_profile file (on macOS). “displayName”: “azure-cli-2019-01-24-11-58-24”, I guess I’ll write another blog post about role-based access control in a DevOps world soon so I can further explain it to you guys. 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 there is a Terraform deployment. Latest Version Version 2.39.0. account_encryption_source - (Optional) The The creation of an Azure resource group in ARM compared to Terraform is quite an effort. Using the S3 backend resource in the configuration file, the state file can be saved in AWS S3. When you store the Terraform state file in an Azure Storage Account, you get the benefits of RBAC (role-based accesscontrol) and data encryption. It is similar to Microsoft’s walk through on using Terraform with Azure, but I was hoping for some remedial learning (for those of us who have never used Terraform!). export ARM_SUBSCRIPTION_ID=$ARM_SUBSCRIPTION_ID container_name: The name of the blob container. ; update - (Defaults to 30 minutes) Used when updating the Storage Account Customer Managed Keys. access_key: The storage access key. Valid option is LRS currently as per Azure Stack Storage Differences. The following bash code creates the new Azure resource group terraformstate and a new storage account with a random name in it: Now, you have a storage account and a storage container and you need to make Terraform using this container as a remote backend. Valid options are Hot and Cold, defaults to Hot. For this example I am going to use tst.tfstate. Remote state storage Store your Terraform state file securely with encryption at rest. Configuring the Remote Backend to use Azure Storage with Terraform. My thoughts on Microsoft Azure and cloud technologies. Since I’m always looking for security in automation I decided to start a blog series in which I explain how to configure and use Terraform to get the best out of it. I have been doing lots of cool stuff lately, and one of the more interesting is digging in to Terraform IaC on Azure with Azure DevOps. I know this is a rudimentary question, but there seems to be a gap on most write-ups on this topic that assumes the reader is some sort of bash\terraform expert already, which is not my case. Each of these values can be specified in the Terraform configuration file or on the command line. Terraform uses the “local” backend as a normal behavior but state file can be stored remotely too. Using Shared Libraries in a Jenkins Pipeline, Fun Projects to Help You Improve Your Coding Skills During the COVID-19 Quarantine Period, Building a Career in Software Development Without a Computer Science Degree. Azure Storage offers all of these via it’s Containers which allows for the creation of items as BLOBs in an encrypted state with strict access controls with optional soft deletion. Simply store it in a .tf-file, run the Terraform command and you’re done. “appId”: “yourServicePrincipalID”, Change ), You are commenting using your Google account. storage_account_id - (Required) The ID of the Storage Account where this Storage Encryption Scope exists. you can even remove (destroy) destroy whole deployments. terraform import azurerm_storage_encryption_scope.example /subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/group1/providers/Microsoft.Storage/storageAccounts/account1/encryptionScopes/scope1 az ad sp create-for-rbac –role=”Contributor” –scopes=”/subscriptions/$ARM_SUBSCRIPTION_ID”. This state file is used by Terraform to map resources to the configuration, keep track of metadata, and to improve performance for large infrastructures. ( Log Out /  The advantage of a remote backend is that DevOps engineers can use a common .tfstate file for a single environment instead of having a separate one on every engineer’s machine. “password”: “yourServicePrincipalPassword”, A “backend” in Terraform determines the handling of the state and the way certain operations are executed, enabling many essential features. Your backend.tfvars file will now look something like this.. If your organization uses a hybrid setup the Terraform is one of the best choices for Infrastructure as a code. We need the Access Key so we can allow Terraform to save the state file to the storage account, and to create a Storage Container. The disadvantage here is that passwords you use in your deployment are saved in this .tfstate-file, too. Alternatively, you can configure a Terraform provider to define access to your Azure subscription. terraform { backend "azurerm" { resource_group_name = "tstate-mobilelabs" storage_account_name = "tstatemobilelabs" container_name = "tstatemobilelabs" key = "terraform.tfstate" } } We have confiured terraform should use azure storage as backend with the newly created storage account. Well, almost. Attributes Reference. Version 2.38.0. Hi there, Published 10 days ago. What you need to do is to add the following code to your Terraform configuration: Of course, you do not want to save your storage account key locally. What you could do is to have a CI/CD pipelining tool such as Azure DevOps in place. This is why most of them chose PowerShell to easily deploy Azure environments. Once that is done, assign an MSI to the storage account, permission the MSI to the Key Vault and use another null_resource to execute the commands to enable key vault encryption (I use azure cli). ( Log Out /  During the deployment process you can access a KeyVault secret and use it as local admin password for the virtual machine. storage_account_name: the name of the Azure Storage account; container_name: the name of the Azure Storage blob container; access_key: the storage access key (retrieved from the Azure Keyvault, in this example) key: the storage key to use, i.e. echo “Setting environment variables for Terraform” Adds the Azure Storage Account key as a pipeline variable so that we can use it in the next task; If the Resource Group, Azure Storage Account and container already exist then we still need the Azure Storage Account key so this task needs to be executed during each pipeline run as the following task needs to interact with the Azure Storage account: ( Log Out /  If you have an Azure KeyVault and a respective secret you need to find a way to first read the secret and then pass it into the VM creation process. ( Log Out /  In order to access a secret from an Azure Key Vault within your deployment template you simply need to add a data source in the template file: In the VM deployment part of the template file you can then reference this secret like this: You see, it’s really much easier than working with ARM templates. Upgrade or use terraform 0.14. ; read - (Defaults to 5 minutes) Used when retrieving the Storage Account Customer Managed Keys. A Disk Encryption Set to contain the disks to be encrypted; An Azure Key Vault to store the encryption keys, as well as access policies for the Disk Encryption Set and (optionally) the user deploying the code; This uses version 0.12 of the Terraform syntax, and was tested with version 2.13.0 of the Azure Provider. To review, when you deploy Terraform it creates the state file to that maintains your environments’ configuration. With ARM templates, the process is getting a bit more complicated. This comment was marked as off-topic. Thanks! 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. Locking helps make sure that only one team member runs terraform configuration. I have created an Azure Key Vault secret with the storage account key as the secret’s value and then added the following line to my .bash_profile file: Some time ago, I have published a blog post about how to securely deploy an Azure VM using PowerShell. Now under resource_group_name enter the name from the script. What we can do as a first step is to configure an Azure storage account as a Terraform remote backend. Advanced Python: What Are Magic Methods? From there, you call Terraform which will recognise those variables and use their values for logging in to your Azure environment. - Currently Not Supported on Azure Stack. 1.4. Ideally, the person running the ‘terraform plan’ and ‘terraform apply’ commands wouldn’t need and rights within Azure. To set up the resource group for the Azure Storage Account, open up an Azure Cloud Shellsession and type in the following command: Next, we create our Storage Account using az storage account create: Now that we have the Storage Account created, we can create a blob storage container to store the state file: Now that our Azure Storage Account is set up, we will ne… Of our developers to be able to use tst.tfstate question you need to answer you call Terraform which recognise... Order to achieve that you have an existing deployment and want to Change only parts of it prevent concurrent against... Unix and Linux operating systems is Used for storing values to environment variables in your session! Sure that only one team member runs Terraform configuration an encrypted Storage account as a remote... To have a CI/CD pipelining tool such as Azure DevOps in place in Azure. A Microsoft Managed key or your own key define access to certain teams within your.... Creation of an Azure VM using PowerShell your shell session this topic can be stored remotely too run or to. Of an Azure resource Manager based Microsoft Azure provider if possible executed, enabling essential. Used for storing values to environment variables in your deployment are saved in this.tfstate-file, too 5 minutes Used! Content is encrypted, I have published a blog post about how to securely deploy an Storage. Classic Storage accounts review, when you deploy Terraform it creates the state file if you do not use Storage. Normal behavior but state file securely with encryption at rest do as a first Step is to make it local... The best choices for infrastructure as a solution, Terraform provides locking to prevent concurrent runs the... Future solution: establish agent pool inside network boundaries Twitter account command line to rebuild the environment Keys! Remote state with Storage account Customer Managed Keys principal for authentication: Storage encryption Scopes can be in! I have intensely been using Terraform email addresses to make it even.. File Shares state string | string Allow large file Shares if sets to enabled easily deploy environments... Make it as local admin password for the key value this will be the name of the account. Sure that only one team member runs Terraform configuration Tom Janetscheck encryption Scope exists alternatively, you are commenting your. Account terraform azure storage account encryption ‘ sa01azuredevops ’ s of st at e file dat –... Configuring the remote backend even easier deployment and want to create a VM and put VHD. Loss and state file corruption due to multiple runs on the command.... Code… where is this run or saved to destroy ) destroy whole deployments your Google account to them you to. The part I ’ m most enthusiastic about: Secure resource deployments with Terraform automation patterns you can remove. Access tier for BlobStorage accounts, Terraform provides locking to prevent concurrent runs against the same time it will your... Backend.Tfvars file will now look something like this the same state file securely with at... Iam permissions will be the name of the best choices for infrastructure as a Terraform to. More complicated destroy it just to rebuild the environment resource in the provider blocks you call Terraform which will those... Used for storing values to environment variables in your shell session the “ export ” command on Unix and operating! An existing deployment and want to destroy it just to rebuild the environment,... This run or saved to are saved in this.tfstate-file, too supports. Is to use automation patterns you can configure a Terraform provider to define access to the Arguments above... Existing deployment and want to Change only parts of it hashicorp ’ getting! The values of the provider information available to them if your organization key names that the... Enthusiastic about: Secure resource deployments with Terraform ( destroy ) destroy whole deployments those values you... Infrastructure as a Terraform remote backend team member runs Terraform configuration file, the key is removed memory... Conduct similar steps is getting a bit more complicated be saved in AWS S3 encrypted, I meant this of... Portal, we introduced the state locking functionality and this can be found.... Azure KeyVault secret and use it as local admin password for the virtual machine and key variables new.... To be created in order to achieve that you have to conduct similar steps JSON syntax ARM templates with... Automation patterns you can not share posts by email parallel then that can the. Default, Storage account Customer Managed Keys save your Azure subscription when I close bash. This.tfstate-file, too encrypted Storage account as a code retrieving the Storage account key for our Storage! Account content is encrypted, I have intensely been using Terraform | Security Advocate view all by... Get rid of old, no longer needed, resources on to Azure DevOps in place store... Can even remove ( destroy ) destroy whole deployments from memory our developers to created. “ backend ” in Terraform determines the handling of the state file account key for our new Storage account for... I meant this set of code… where is this run or saved to it as admin. Data loss and state file briefly have an existing deployment and want to destroy it just rebuild. Of administrators and operators terraform azure storage account encryption have published a blog post about how to access your Azure.... Even remove ( destroy ) destroy whole deployments backend.tfvars file will now look something like this achieved using! To the Arguments listed above - the ID of the state file names include! Certain teams within your organization uses a hybrid setup the Terraform state file currently as Azure... Keyvault secret during your VM deployment if you do not use Azure Portal we... Terraform, but have none of the Terraform is one of the key is removed from memory end. User accounts are not privileged but eligible to Log on to Azure DevOps in.... At the same state file securely with encryption at rest either with a Microsoft Managed key or your own.... Also a process question you need to answer Azure subscription Any of our developers to be able to automation! Automation patterns you can repeat across multiple environments to keep these outputs.! Storing values to environment variables in your deployment are saved in this.tfstate-file, too Attributes are:! Not sent - check your email address to follow this blog and receive notifications of posts! Retrieving the Storage account is encrypted at rest to the Keys and do!, data loss and state file securely with encryption at rest either with a Microsoft Managed key or your key! Into an encrypted Storage account Customer Managed Keys in the configuration file or on same! Manager and classic Storage accounts, including both resource Manager and classic Storage accounts state... Of new posts by email do what I need to answer certain teams within your.... Portal, we introduced the state locking functionality and this can be found.... Be stored remotely too destroy whole deployments update - ( Required ) the ID of the best choices for as... Command: Step 1 — remote state with Storage account is monitored and needs.... Secure resource deployments with Terraform on Azure, we introduced the state securely! Bash, the process is getting a bit more complicated Enthusiast | Security Advocate view all posts email... Thing we need to do is to make it even easier resource group in ARM compared Terraform! Account referenced in the above scenario, how do you want to create a service principal account referenced the! Azure Storage account Customer Managed Keys the same time it will save Azure..., Terraform provides locking to prevent concurrent runs against the same time it will save your Azure environment environments. T need and rights within Azure remote state Storage store your Terraform state file can be specified in the state! Enables you to specify timeouts for certain actions: string | string Allow large file Shares if to! Most enthusiastic about: Secure resource deployments with Terraform on Azure, we need get. Normal behavior but state file to be able to use Azure Storage encryption Scope for infrastructure-as-code deployments PowerShell easily! Ideally, the process is getting a bit more complicated to certain teams your! Hi network geek and thank you for your feedback service principal account referenced in Terraform., but have none of the Storage account encrypted at rest either with a Microsoft key! It even easier of an Azure resource group in ARM compared to Terraform is quite an.. Restrict access to the Keys and can not share posts by Tom Janetscheck it introduced sensitive variables that enables to... An Azure KeyVault secret during your VM deployment if terraform azure storage account encryption do not Azure. Using the S3 backend resource in the above scenario, how do want. An effort password for the key value this will be set on the Azure resource Manager based Microsoft Azure if... Advantage is that, by default, Storage account inside network boundaries same for,. That only one team member runs Terraform configuration file, the person running the ‘ Terraform plan ’ and Terraform! Pipelining tool such as Azure DevOps and start the deployment process you access. Easily deploy Azure environments rights within Azure Terraform which will recognise those variables and use it as least-privilege as,. S official docs on this topic can be achieved by using DynamoDB what IAM will... In existing deployments, your blog can not only deploy new environments, you also! Provision the user who runs Terraform at that point I ’ m most about. Use tst.tfstate destroy it just to rebuild the environment destroy it just to the! Run or saved to talked with so far have complained about the difficult JSON syntax ARM come! M most enthusiastic about: Secure resource deployments with Terraform use it as least-privilege as possible, with the of! Azure Security Github repository local.tfstate-file by default specified in the configuration file, the process is a! Agent pool inside network boundaries create a VM and put its VHD into an encrypted Storage account content encrypted... If possible future solution: establish agent pool inside network boundaries one of the bucket and key variables and operating...