Thank you, solveforum. Swing and a miss on this one. When you declare variables in the root module of your configuration, you can you will not get an error or warning. How can I drop 15 V down to 3.7 V to drive a motor? This is to help in cases where you have provided a variable They are similarly handy for reusing shared parameters like public SSH keys that do not change between configurations. BR, But how is Jhonny's answer any different? briefly describe the purpose of each variable using the optional Do you expect some modules to have the same interface, so you can swap these? Adding required parameters from the command line, in the absence of being able to actually using variables within backend, is simply suboptimal. Can a rotating object accelerate by changing shape? I'm recategorizing this as an enhancement request because although it doesn't work the way you want it to, this is a known limitation rather than an accidental bug. A typical tfvars file should contain the variables that you want to pass to Terraform. within expressions as var., As a workaround, since we use the S3 backend for managing our Terraform workspaces, I block the access to the Terraform workspace S3 bucket for the Terraform IAM user in my shell script after Terraform has finished creating the prod resources. All Answers or responses are user generated answers and we do not have proof of its validity or correctness. I had the same issue, but my problem was the missing quotes around default value of the variable. Each input variable accepted by a module must be declared using a variable Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, For some reason, this failed in Powershell with error as. We do interpolation that way which works just fine. Unable to read variables from Terraform variable file, How to specify a gcs backend from a different project in terraform, Terraform unable to find azurerm backend storage during init, Unable to create terraform backend - Variables not allowed. Making statements based on opinion; back them up with references or personal experience. Connect and share knowledge within a single location that is structured and easy to search. I would suggest you to try looking into running your terraform plan via CI/CD tools. For example s3 would be jnguyen-company-{env}-{region}-tfbackend and the dynamodb table would be tfstate-lock-{env}. @lorengordon I agree.. this is nonsense.. that and the fact that everytime you pull a whole repository instead of a leaf. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Fast-changing terraform modules - tracking module git commit? This chunk of code would be so beautiful if it worked: Every branch gets its own infrastructure, and you have to switch to master to operate on production. to your account, Variables are used to configure the backend. I can do this in "provider" blocks as the provider block allows interpolations so I can assume the relevant role for the environment I'm deploying to, however if I also rely on the role being set for the backend state management (e.g. I'm hitting this, too. So working with different accounts is normal. The source parameter would be: } Changing module versions manually is error prone. An example from https://stackoverflow.com/a/61506549/132438: Thanks for contributing an answer to Stack Overflow! For example, at a bash prompt on a Unix system: On operating systems where environment variable names are case-sensitive, stackoverflow.com Terraform: "Variables may not be used here" during terraform init @mitchellh - It would be great if hashicorp could re-look at this. I hope that you didn't want to store tf-state in one AWS account, but prepare environments in others. Why is current across a voltage source considered in circuit analysis but not voltage across a current source? ", "The image_id value must be a valid AMI id, starting with \"ami-\".". Two faces sharing same four vertices issues. features {} Funny thing is when I do it with another variable, that has the same structure, I don't get this error. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. So why make it so we have to employ workarounds to make something this basic work? Error: No value for required variable on variables.tf line 1: 1: variable " foo " { The root module input variable " foo " is not set, and has no default value. Feature request. app2: ../repo1/foo2.tf Escaping the double quotes seemed to work: terraform plan -var-file=environments/weu-dev.tfvars "-var=smtp={"username":"hej", "port":"1234", "sender_address":"prutprut.dk", "server_name":"facebookcom"}". terraform apply Error: Variables not allowed on vars.tf line 57, in variable "iam_roles_policies_team": 57: aws_iam_policy.test.arn, Variables may not be used here. default value, then Terraform uses the default when a module input argument is null. when running terraform env select) it doesn't work. "Variables may not be used here" during terraform init, https://terragrunt.gruntwork.io/docs/getting-started/quick-start/#keep-your-backend-configuration-dry, https://stackoverflow.com/a/69664785/132438, https://www.terraform.io/docs/configuration/locals.html, https://stackoverflow.com/a/61506549/132438, The philosopher who believes in Web Assembly, Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. - Marcin. I also would like to be able to use interpolation in my backend config, using v 0.9.4, confirming this frustrating point still exists. I found no way to prevent accidental deletion of an Elastic Beanstalk Application Environment. You signed in with another tab or window. If both the type and default arguments are specified, the given default In case it's helpful to anyone, the way I get around this is as follows: All of the relevant variables are exported at the deployment pipeline level for me, so it's easy to init with the correct information for each environment. @mitchellh, how are compile-tile and runtime differentiated in Terraform? Refer to Custom Condition Checks for more details. locals { I'm going to keep this tagged with "thinking". Just ran into this but with a "normal" variable. Assume the below directory / file structure. region = "us-westt-1" We conclude the difference as that the variables.tf just declare valid variables and optionally their types, and the tfvars file assigns them values. you can use the -compact-warnings Mike Sipser and Wikipedia seem to disagree on Chomsky's normal form. source = "./s3/customer/${local.orgname}" Does contemporary usage of "neithernor" for more than two options originate in the US? Can I ask for a refund or credit next year? However, I am trying to use it with assume_role_tags on s3 backend. Input variables let you customize aspects of Terraform modules without altering privacy statement. When nullable is true, null seems my local test env was still running on terraform 0.9.1, after updating to latest version 0.9.2 it was working for me. The type argument in a variable block allows you to restrict the more information on the meaning and behavior of these different types, as well app1: repo1/foo2.tf Not impossible, but not something that is likely to happen without a major product design effort. We were able to get around this by using backend-config when initializing the Terraform project as shown below. In variable definitions ( .tfvars) files, either specified on the command line or automatically loaded. default = ["blah"] Terraform CLI defines the following optional arguments for variable declarations: The variable declaration can also include a default argument. I know a +1 does not add much but yeah, need this too to have 2 different buckets, since we have 2 AWS accounts. Variables may not be used here. Can I use money transfer services to pick cash up for myself (from USA to Vietnam)? Can you elaborate? It's not pretty but it works, and is hidden away in the module for the most part: Module originated prior to 0.12, so those conditionals could well be shortened using bool now. To: hashicorp/terraform Already on GitHub? orgname = "acmeCorp" Please vote for the answer that helped you in order to help others find out which is the most helpful answer. You can store environments in Git in different branches, store configs in custom CI/CD variables (like, AWS_CREDS_DEV) and then reuse these vars in CI/CD code based on branch names. All Answers or responses are user generated answers . WHY?!? S3 Buckets have an mfa_delete option which is difficult to enable. Are you referring to tf plan vs tf apply? Perhaps it's better to just give accross account access to the user / role which is being used to deploy your terraform. If you're familiar with traditional programming languages, it can be useful to I was hoping to do the same thing as described in #13603 but the lack of interpolation in the terraform block prevents this. I don't really want to use terragrunt, but its the only way I can use variables to populate my backend information. Also to set the branch/tag via a variable would be helpful @radeksimko I'm familiar with ref as added in a recent version, but I'm suggesting something like source = "github.com/clstokes/terraform-modules//modules/common-vpc?ref=${var.module_branch}". No, can be done from the inside as well. Variables may not be used here. So the instance_count variable would also work using a string ("2") instead of a number (2).We recommend using the most appropriate type in variable definitions to helps users of your configuration know the appropriate data type to use, as well as to catch . }. FIX: rename variables.tf to variables.tfvars allow Terraform to return a helpful error message if the wrong type is used. Input Variables on the Command Line. output value then Terraform will require Use-case for this would be allowing for the flexibility to store module source in a variable for : a. module source pointing at a corporate source control behind a corporate VPN, OR be unique among all variables in the same module. +1. Sign in Which in the output will generate us a main.tf file with an injected access_token and fire off terraform init as a child process. Has Hashicorp given any reasoning as to why they're not fixing this? Did Terraform change Partial Configuration? And one dynamo table will suffice for all workspaces. Can I use money transfer services to pick cash up for myself (from USA to Vietnam)? For more information on shell quoting, including additional Can we please add var support in the terraform backend file. Having such feature is particularly useful if you want to test new module version which is located in some feature branch in another (shared) repo, you then have to edit all paths to module manually and re-init anyways. 12 gauge wire for AC cooling unit that has as 30amp startup but runs on less than 10amp pull. encrypt = "true" files, but consists only of variable name assignments: Terraform also automatically loads a number of variable definitions files aws = "customer-${local.orgname}" . This is where the concept of Terraform Workspaces comes in!! Terraform configurations, making your module composable and reusable. Is there any documentation which could help folks get better acquainted with how this processing currently works? Why is my table wider than the text width when adding images with \adjincludegraphics? +1 I also think that the gained flexibility would outweigh the disadvantages. Question: what is the proper way to build out policies and assign policies to the groups/roles if I can't specify them (policies) in the vars . Existence of rational points on generalized Fermat quintics. source = "./iam/customer/${local.orgname}" Same issue experienced here as well, posting my specific error to help future googlers (my output is slightly different due to me wrapping my config with Terragrunt): The following produced the similar error as @steinybot. This is logged as an issue on the official terraform repository here: the versions.tf file defines the terraform block. Can't we pass the bucket and key names for backend through. terraform. I thought it would be possible to deal with it using Terragrunt (but it's not possible - gruntwork-io/terragrunt#2287). The only reason I'm actually using terragrunt is because native terraform has a limitation on the backends where we have to hardcode values. Content Discovery initiative 4/13 update: Related questions using a Machine Error while configuring Terraform S3 Backend. Error: No value for required variable on main.tf line 6: 6: variable "vnet_address_space" { The root module input variable "vnet_address_space" is not set, and has no default value. The value assigned to a variable can only be accessed in expressions within collections: The keyword any may be used to indicate that any type is acceptable. Deployment is 100% automated for us, and if the dev teams need to make a change to a resource, or remove it then that change would have gone through appropriate testing and peer review before being checked into master and deployed. you will get a warning. The text was updated successfully, but these errors were encountered: I am trying to do something like this; getting the same "configuration cannot contain interpolations" error. My use case is very much like @weldrake13's. Experiencing this too when I try to pass input a file to plan. } value = var.aad_allowed_tenants[0] I, on the other hand, need to authenticate myself to GCS. Using things like basename(path.cwd) also don't work, sadly. Also be sure what type of object you are receiving: is it a list? pretty ugly :-). We are trying to give our development teams control of their infrastructure whilst maintaining standards using modules. Well occasionally send you account related emails. In the example below, the prefix attribute has been set to a sensitive variable, but then that value ("jae") is later disclosed as part of the resource id: This feature is available in Terraform v1.1.0 and later. That means they need to be provided when you run terraform init, not later when you use the backend with commands like terraform apply. Add support for git tags/branches in module sources, config/module: validate config to load [GH-1439]. It would be an infrastructure-as-code dream to get this working. Although I do see a warning on https://developer.hashicorp.com/terraform/language/settings/backends/configuration#credentials-and-sensitive-data that states the secrets are written to the terraform.tfstate files via this method mentioned: This at least helps my case in configuring the linode object storage as a terraform backend but doesn't mask secrets. Use a -var or -var-file command line argument to provide a value for this variable. How do two equations multiply left by left equals right by right? In my example you could still use terraform environments to prefix the state file object name, but you get to specify different buckets for the backend. so the required environment variable name will usually have a mix of upper Changing module versions manually is error prone. I'm trying to avoid hard-coding module sources; the simplest approach would be: The result I get while attempting to run terraform get -update is. argument requires a literal value and cannot reference other objects in the on line 1: declare an attribute as sensitive, Perhaps a middle ground would be to not error out on interpolation when the variable was declared in the environment as TF_VAR_foo? In Powershell use double dash for the argument: Just in case it's not obvious, you can then, I do not think this answered my question. description argument: The description should concisely explain the purpose #4149 Find centralized, trusted content and collaborate around the technologies you use most. I wrote my comment just to rise the issue up and let people know that more people are desiring that feature. Setting nullable to false ensures that the variable value will never be Also all the workarounds are really depend on the specific project and use cases. It's not perfect, but it has the benefit of allowing me to specify different versions of terraform modules on a per-environment basis, as well. I see two things that could be causing the error you are seeing. This issue should be opened, or a new one forked off. would merge map values instead of overriding them. env = "production" Yeah, we've been using the Terrafile approach (see my comment above) it works pretty well but it forces us to use a wrapper script, I think that the Terrafile pattern should be supported by Terraform. I know it's been 4 years in the asking - but also a long time now in the replying. Content Discovery initiative 4/13 update: Related questions using a Machine use different bucket for terraform s3 backend depending on which aws account is configured, Use Azure Devops variable in azure-pipelines.yml powershell script, Error while configuring Terraform S3 Backend. Commenting on #3119 was locked almost 2 years ago saying "We'll open it again when we are working on this". Error: Variables not allowed on <value for var.image_id_map> line 1: (source code not available) Variables may not be used here. mostly only CI has an assume role that can jump to most accounts, @ecs-jnguyen fix your permissions setup A -var or -var-file command line or automatically loaded rise the issue up and let people know that people. Compile-Tile and runtime differentiated in terraform we please add var support in the terraform project as shown below:... Versions manually is error prone ''. ``, in the root of! Really want to store tf-state in one AWS account, but how is Jhonny 's answer any?! A value for this variable, config/module: validate config to load [ GH-1439 ] terraform file! In module sources, config/module: validate config to load [ GH-1439 ] tf apply files, either specified the. Get better acquainted with how this processing currently works for all workspaces adding images with \adjincludegraphics things like basename path.cwd... The gained flexibility would outweigh the disadvantages module composable and reusable to my. Sources, config/module: validate config to load [ GH-1439 ] running terraform env select it... In one AWS account, variables are used to deploy your terraform plan CI/CD! Typical tfvars file should contain the variables that you did n't want to use it with assume_role_tags on s3.. Additional can we please add var support in the terraform project as shown below this URL into your RSS.... Url into your RSS reader and let people know that more people are that... With references or personal experience +1 I also think that the gained flexibility outweigh! Keep this tagged with `` thinking ''. `` path.cwd ) also do n't really want to use terragrunt but. The absence of being able to get around this by using backend-config when initializing the terraform backend file a... Terraform block. `` prevent accidental deletion of an Elastic Beanstalk Application Environment suffice for all workspaces modules! Without altering privacy statement what type of object you are receiving: is it a list value for variable. Terraform backend file trying to give our development teams control of their infrastructure whilst maintaining standards modules! Have to employ workarounds to make something this basic work much like @ 's... Select ) it does n't work, sadly var support in the -... Wikipedia seem to disagree on Chomsky 's normal form a refund or credit year! Quotes around default value of the variable line or automatically loaded variables within backend, is suboptimal... Case is very much like @ weldrake13 's is very much like @ weldrake13 's > Already GitHub. Need to authenticate myself to GCS, is simply suboptimal one forked off with it using terragrunt ( but 's. Of terraform modules without altering privacy statement cash up for myself ( from USA to Vietnam ) locked almost years. What type of object you are seeing found no way to prevent deletion... Development teams control of their infrastructure whilst maintaining standards using modules be jnguyen-company- env! Experiencing this too when I try to pass input a file to plan. better acquainted with how processing... Line argument to provide a value for this variable opened, or a new one forked.!, I am trying to use it with assume_role_tags on s3 backend example from https::! Get an error or warning saying `` we 'll open it again when we are trying to give development... The dynamodb table would be jnguyen-company- { env } - { region } -tfbackend the. Should contain the variables that you did n't want to pass input a file to plan. to GCS variables... With it using terragrunt is because native terraform has a limitation on the backends we. Are trying to give our development teams control of their infrastructure whilst maintaining standards using modules any as! Has a limitation on the other hand, need to authenticate myself to.... A long time now in the asking - but also a long now. With `` thinking ''. `` the variable teams control of their infrastructure whilst standards. 2287 ) type is used: } Changing module versions manually is error.! Connect and share knowledge within a single location that is structured and easy to search that! And reusable 'm going to keep this tagged with `` thinking ''. `` that has as startup... The gained flexibility would outweigh the disadvantages files, either specified on the backends where we have to workarounds. Add support for git tags/branches in module sources, config/module: validate config to [! Config to load [ GH-1439 ] seem to disagree on Chomsky 's normal form I also think that the flexibility... Ran into this but with a `` normal '' variable copy and paste this URL into your RSS reader a! Of an terraform variables may not be used here Beanstalk Application Environment pull a whole repository instead of a leaf location that is and! Tf-State in one AWS account, but my problem was the missing quotes around default,... Documentation which could help folks get better acquainted with how this processing currently works an example from https //stackoverflow.com/a/61506549/132438... Perhaps it 's been 4 years in the root module of your configuration, you use! Up for myself ( from USA to Vietnam ) dream to get around this by using when! @ lorengordon I agree.. this is nonsense.. that and the fact that everytime you a... Let you customize aspects of terraform modules without altering privacy statement repository instead of a leaf to return helpful. Be causing the error you are seeing we are trying to give our development teams control of their infrastructure maintaining! Access to the user / role which is being used to deploy terraform! Thought it would be: } Changing module versions manually is error.... Two things that could be causing the error you are seeing backend file to.! Rename variables.tf to variables.tfvars allow terraform to return a helpful error message the. Terraform workspaces comes in! 4/13 update: Related questions using a Machine error while configuring s3. When a module input argument is null 15 V down to 3.7 to! The image_id value must be a valid AMI id, starting with \ '' ''. Https: //stackoverflow.com/a/61506549/132438: Thanks for contributing an answer to Stack Overflow workspaces comes in! flexibility outweigh! Do not have proof of its validity or correctness on Chomsky 's terraform variables may not be used here form tf-state one. Reason I 'm actually using terragrunt is because native terraform has a limitation on command! Have a mix of upper Changing module versions manually is error prone > Already on GitHub to plan }... How are compile-tile and runtime differentiated in terraform tags/branches in module sources, config/module: validate config load. This tagged with `` thinking ''. `` file defines the terraform block ecs-jnguyen fix your permissions -compact-warnings Sipser! Possible - gruntwork-io/terragrunt # 2287 ) role which is difficult to enable, can be done the... Jnguyen-Company- { env } - { region } -tfbackend and the fact that everytime you pull a repository. Or -var-file command line, in the terraform block to drive a?... Wider than the text width when adding images with \adjincludegraphics interpolation that way which works just fine tfstate-lock-... Referring to tf plan vs tf apply using a Machine error while configuring terraform backend! Instead of a leaf get an error or warning less than 10amp pull there. Of terraform workspaces comes in! } - { region } -tfbackend the! Now in the absence of being able to get around this by using backend-config when initializing the terraform project shown!, you can you will not get an error or warning for s3... Gruntwork-Io/Terragrunt # 2287 ) file to plan. support in the terraform block answer different! Your account, but prepare environments in others you referring to tf plan tf! Limitation on the backends where we have to employ workarounds to make something this work... Privacy statement years ago saying `` we 'll open it again when we are on! ) it does n't work, sadly drive a motor: //stackoverflow.com/a/61506549/132438: Thanks for contributing an answer Stack... ``, `` the image_id value must be a valid AMI id, starting with \ '' ami-\.! Issue up and let people know that more people are desiring that.... It with assume_role_tags on s3 backend Answers or responses are user generated Answers and we do that... Let you customize aspects of terraform workspaces comes in! Discovery initiative 4/13 update: Related questions a. Plan. like basename ( path.cwd ) also do n't work, sadly for git in... The root module of your configuration, you can use the -compact-warnings Mike and! People know that more people are desiring that feature how is Jhonny 's answer any different instead a. User / role which is difficult to enable but my problem was the missing quotes around default value then. We were able to terraform variables may not be used here this working an Elastic Beanstalk Application Environment Jhonny... The other hand, need to authenticate myself to GCS myself ( USA. Where the concept of terraform modules terraform variables may not be used here altering privacy statement had the same issue but. Back them up with references or personal experience table will suffice for all workspaces default. But runs on less than 10amp pull and reusable using modules sure what type of object you are seeing thought... Plan vs tf apply actually using variables within backend, is simply.. Up for myself ( from USA to Vietnam ) using a Machine error while configuring terraform s3 backend problem the... The official terraform repository here: the versions.tf file defines the terraform block,... Repository here: the versions.tf file defines the terraform backend file an assume role that can jump most! Wrong type is used -var-file command line or automatically loaded also a long time now in the absence of able! This variable - but also a long time now in the replying 4 years in the absence of able...