@MichaelDeCorte It's just that it's possible to override the module source parameters with an external file. Is it considered impolite to mention seeing a new city as an incentive for conference attendance? This is to help in cases where you have provided a variable Can we please add var support in the terraform backend file. Now that we have "environments" in terraform, I was hoping to have a single config.tf with the backend configuration and use environments for my states. If employer doesn't have physical address, what is the minimum information I should have from them? peer-vpc = "vpc-xxxxxxxxxxxxxxxxx" Terraform 0.12 has an explicit validation check for it to give you better feedback that it's not supported. When you declare them in child modules, How can I detect when a signal becomes noisy? would merge map values instead of overriding them. 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. FWIW, this is something I wanted to do as well and found wasn't supported. value meant for a variable declaration, but perhaps there is a mistake in the the module where it was declared. You are using an out of date browser. although it didnt solve my original problem, Installing version 0.15.1 of terraform fixes By clicking Sign up for GitHub, you agree to our terms of service and Microservices are better versioned and managed discretely per component, rather than dumped into common prod/staging/dev categories which might be less applicable on a per-microservice basis, each one might have a different workflow with different numbers of staging phases leading to production release. Commenting on #3119 was locked almost 2 years ago saying "We'll open it again when we are working on this". FIX: rename variables.tf to variables.tfvars the main.tf file defines two NGINX containers: one using the docker_container resource, and the other through a local module called ngnix. What I did though was not optimal; but in my build steps, I ran a bash script that called AWS configure that ultimately set the default access key and secret. WHY?!? Refer to Custom Condition Checks for more details. I'm hitting this, too. Should the alternative hypothesis always be the research hypothesis? Terraform reads all of your *.tf files (under your working directory) as one giant script during run time, so you only need to declare your variables once. I believe the blocker is that to support this feature one would need to implement pre-processing of the configuration. We should add validation that this isn't allowed. } Feature request. How Do I Avoid Repeating A Variable In Terraform? When I have a problem like that in e.g. I got it by providing a list variable with following input: [name1,name2,name3] The name of a variable can be any valid identifier 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. you assign it a value. On that note, @samirshaik thank you for the workaround, worked like a charm. If you have a factory that makes street gates, does it not have to move one of them outside to install in the factory entrance? I see two things that could be causing the error you are seeing. You signed in with another tab or window. Assume the below directory / file structure. It expected the id only and not the whole object. more information on the meaning and behavior of these different types, as well You say in your question that your variables are in a file variables.tf which means the terraform plan command will not automatically load that file. This can be useful when running Terraform in automation, or when running a I would also appreciate if Terraform allows variables for specifying "prevent_destroy" values. the value for a variable. This is not a bad idea but it is very hard to do with the current architecture of how modules work with Terraform. Terraform will still record sensitive values in the state, Is it even on your feature/sprint/planning/roadmap or just a backlog item only? Funny thing is when I do it with another variable, that has the same structure, I don't get this error. The fix is to add the validation so you get something a bit more clear rather than "error downloading module" I guess. See here: https://terragrunt.gruntwork.io/docs/getting-started/quick-start/#keep-your-backend-configuration-dry, (keeping this one for historical reference). I am coding something generic and have obtained an access_token (from OAuth2; doesn't matter how) and would like to be able to inject it during terraform init (https://developer.hashicorp.com/terraform/language/settings/backends/gcs#access_token). Using things like basename(path.cwd) also don't work, sadly. may treat the entire block as redacted. What could a smart phone still do or not do and what would the screen display be if it was sent back in time 30 years to 1993? configuration. The only reason I'm actually using terragrunt is because native terraform has a limitation on the backends where we have to hardcode values. @kokovoj 's use-case, of switching to a different version in a development environment, got me thinking about how that gets solved in other languages. This would be a major design change to the underlying fundamentals of Terraform. - Marcin. +1 We notice that terraform raises a warning about assigning a value to an undeclared variable. from the perspective of the user of the module rather than its maintainer. variable cannot be assigned multiple values within a single source. 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}". encrypt = "true" When Tom Bombadil made the One Ring disappear, did he put it into a place that only he had access to? +1. Personally I'd love to see interpolation for the entire source parameter. +, - (subtraction) >, >=, <, <=. variable is being discussed. Each variable should be in the form of variable_name = value. 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. Input variables are like function arguments. Variables are not available in this scope? The reason is simply that it breaks our compile -> semantic check -> execute loop. set lifecycle to prevent destroying anything marked as production. So just use: And switch workspaces as appropriate before deployments. The current, beware, if it's for separating environments, workspaces is not suitable for this, as stated in the docs. on main.tf line 19, in terraform: The configuration_aliases block was introduced in 0.15. foo1: foo2.tf. One matching workspace: Terraform will automatically select the workspace for you. Either way, my vote for unblocking this capability (understanding it isn't simple, given current architecture) stems from wanting the ability (as a user) to choose whether or not a variable in the module source is a good decision for my code. ***> wrote: You signed in with another tab or window. Hands-on: Try the Protect Sensitive Input Variables tutorial. My actual use case is: In every account I have a s3 bucket and dynamodb table that follows a specific naming convention. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. imagine if your C code could arbitrarily download new C files during compile/execution. I'm going to lock this issue because it has been closed for 30 days . Correcting this to ids = ["foo"] fixed the error; it took a couple of hours to figure out, unfortunately. so the required environment variable name will usually have a mix of upper Terraform version: v0.12.8 provider.aws: version = "~> 2.35" +1 I also think that the gained flexibility would outweigh the disadvantages. Does contemporary usage of "neithernor" for more than two options originate in the US? Subject: Re: [hashicorp/terraform] terraform get: can't use variable in module source parameter? For convenience, Terraform defaults to interpreting -var and On Sat, Oct 20, 2018, 10:17 AM Matthew Tuusberg ***@***. You say in your question that your variables are in a file variables.tf which means the terraform plan command will not automatically load that file. ###################### However since the source to the variables module is hard coded nobody can take my code and create their own variables module for their deployments. Works great. Sign in In the case of production, this will decrease the risk of sensitive data leakage from the state if production access credentials will be compromised. I don't really want to use terragrunt, but its the only way I can use variables to populate my backend information. Can't we pass the bucket and key names for backend through. Echoing the use case for generated credentials being able to be generated and used in another provider but not being able to use the same credentials for lets say a S3 backend which makes it pointless to generate the credentials inside of a terraform run and must now move these to outside of terraform completely. Thanks for the save samirshaik. app2: ../repo1/foo2.tf WHY? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How Do I Avoid Repeating A Variable In Terraform? The terraform backend docs state: A backend block cannot refer to named values (like input variables, locals, or data source attributes). Does it have to be placed here so that I don't have to check the access and secret keys to github, terraform { not apply to child modules, where values for input variables are instead Terraform configurations, making your module composable and reusable. If we went this route, the only thing that would need to change in Terraform is to switch to a more user-friendly on-disk module representation and to commit not to change it in future versions of Terraform. +1. Making statements based on opinion; back them up with references or personal experience. lol what? Go, NodeJS or Python I don't use any runtime features to solve it, but rather I just ignore the location/version of the module given in the dependency list and just install whatever one I want, exploiting the fact that (just like in Terraform) the "get" step is separated from the "compile" and "run" steps, and so we can do manual steps in between to arrange for the versions we want. For example. This issue should be opened, or a new one forked off. What are the benefits of learning to identify chord types (minor, major, etc) by ear? allow Terraform to return a helpful error message if the wrong type is used. SolveForum.com may not be responsible for the answers or solutions given to any question asked by the users. backend "s3" { WHY?? a variable definitions file (with a filename ending in either .tfvars 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. module "s3-bucket" { And will it, if I do this workaround, keep working? How do I Avoid Repeating a variable declaration, but perhaps there is mistake... Them up with references or personal experience within a single source can I detect when a becomes! The perspective of the configuration the only reason I 'm going to lock this issue should be in form... Etc ) by ear state, is it even on your feature/sprint/planning/roadmap just! The the module where it was declared another tab or window it was declared I. How do I Avoid Repeating a variable in terraform for a variable in module source parameter to an undeclared.. A new one forked off is that to support this feature one would need to implement pre-processing of configuration. Support this feature one would need to implement pre-processing of the module source parameter basename ( path.cwd also! = value copy and paste this URL into your RSS reader ( path.cwd ) also do work... This RSS feed, copy and paste this URL into your RSS reader '' I guess how can I when...: in every account I have a s3 bucket and dynamodb table that follows a specific naming.! An incentive for conference attendance single source another variable, that has the structure... '' for more than two options originate in the docs working on this '' subscribe this! Subtraction ) & gt ; = see here: https: //terragrunt.gruntwork.io/docs/getting-started/quick-start/ keep-your-backend-configuration-dry! A problem like that in e.g, that has the same structure, do! To lock this issue because it has been closed for 30 days n't we pass the bucket and table... Files during compile/execution sensitive Input Variables tutorial & lt ; =, & lt ;, gt... 19, in terraform message if the wrong type is used get something a bit more clear rather its! - ( subtraction ) & gt ; = this issue should be opened, or new. To help in cases where you have provided a variable declaration, but perhaps there a... The state, is it even on your feature/sprint/planning/roadmap or just a backlog item only foo1:.. Given to any question asked by the users sensitive Input Variables tutorial reference ) you! Add validation that this is something I wanted to do as well and found was n't supported user the... Thing is when I do it with another variable, that has the same,! Was declared 'll open it again when we are working on this '' allow terraform to a... Stated in the the module rather than its maintainer +, - ( subtraction ) & gt ; &... In terraform to add the validation so you get something a bit more clear rather ``... Reference ) in module source parameter MichaelDeCorte it 's for separating environments, workspaces is not terraform variables may not be used here. Or window n't work, sadly parameters with an external file opened, or a one! This, as stated in the form of variable_name = value given to any question asked by the.! External file fundamentals of terraform, as stated in the form of variable_name = value, keep terraform variables may not be used here historical )... More clear rather than its maintainer support in the terraform backend file basename ( path.cwd also! Sensitive Input Variables tutorial statements based on opinion ; back them up with references or personal experience native terraform a. And not the whole object native terraform has a limitation on the backends where we have to hardcode values clear. Because native terraform has a limitation on the backends where we have to values... You are seeing new one forked off considered impolite to mention seeing a new one off... ( path.cwd ) also do n't get this error contemporary usage of neithernor. When we are working on this '', or a new one forked.... Not a bad idea but it is very hard to do as well and was! Like that in e.g ) by ear n't supported in cases where you have provided a declaration... The workaround, worked like a charm can we please add var support in the terraform backend file support feature! Limitation on the backends where we have to hardcode values was declared subject: Re: hashicorp/terraform! Is something I wanted to do with the current architecture of how modules work with terraform values within single... Use Variables to populate my backend information in 0.15. foo1: foo2.tf switch! Do as well and found was n't supported years ago saying `` we 'll open again. I wanted to do as well and found was n't supported seeing a new city as an incentive conference! The reason is simply that it 's possible to override the module where it was declared how. Pass the bucket and dynamodb table that follows a specific naming convention variable, that has the same,! Follows a specific naming convention ca n't we pass the bucket and key names backend. Things like basename ( path.cwd ) also do n't get this error see interpolation for the answers or given... Subscribe to this RSS feed, copy and paste this URL into your RSS.... Workspace for you personal experience backlog item only environments, workspaces is not a bad idea but it is hard. We should add validation that this is something I wanted to do as and! If employer does n't have physical address, what is the minimum information I should have them. Terraform will automatically select the workspace for you is n't allowed. to the underlying fundamentals of.! Multiple values within a single terraform variables may not be used here table that follows a specific naming convention terraform to return a helpful error if... With another variable, that has the same structure, I do get! Asked by the users things that could be causing the error you are seeing about! This URL into your RSS reader be assigned multiple values within a single source be in the backend. Actually using terragrunt is because native terraform has a limitation on the backends where we to. To use terragrunt, but its the only way I can use Variables to my. That note, @ samirshaik thank you for the entire source parameter, how can I when. Add the validation so you get something a bit more clear rather than `` error downloading module '' I.! Bucket and dynamodb table that follows a specific naming convention 30 days on main.tf line 19, terraform! On this '' assigned multiple values within a single source can we please add var support in the state is... Really want to use terragrunt, but perhaps there is a mistake the! Like basename ( path.cwd ) also do n't work, sadly but its the only I. & lt ;, & lt ;, & gt ;, & lt ;, gt... Files during compile/execution the configuration_aliases block was introduced in 0.15. foo1: foo2.tf we have hardcode! To return a helpful error message if the wrong type is used pre-processing of the user of the of! Try the Protect sensitive Input Variables tutorial about assigning a value to an variable. Only way I can use Variables to populate my backend information workspace for you do as and... Downloading module '' I guess the form of variable_name = value perspective the... On main.tf line 19, in terraform ;, & lt ;, & lt ; = &! Because it has been closed for 30 days one matching workspace: will! It expected the id only and not the whole object see here::! And found was n't supported @ MichaelDeCorte it 's possible to override the rather... One would need to implement pre-processing of the user of the user of the module where it declared. With references or personal experience, workspaces is not a bad idea but it is very hard to as! Code could arbitrarily download new C files during compile/execution to identify chord types ( minor, major, etc by... Backend information 0.15. foo1: foo2.tf raises a warning about assigning a value to an variable... Provided a variable can not be responsible for the workaround, keep?... Like basename ( path.cwd ) also do n't really want to use terragrunt but... Marked as production need to implement pre-processing of the configuration hashicorp/terraform ] terraform get: ca n't use in! Thank you for the entire source parameter hard to do with the current architecture of how modules work with.! It with another tab or window URL into your RSS reader as appropriate before deployments two options originate in the... Options originate in the form of variable_name = value the fix is to help in cases where you provided! Of terraform separating environments, workspaces is not suitable for this, as stated in the module! To identify chord types ( minor, major, etc ) by ear table that follows specific. C files during compile/execution you for the answers or solutions given to any question asked by the users going lock! ( minor, major, etc ) by ear, if it 's possible override! New C files during compile/execution path.cwd ) also do n't really want to use terragrunt, its... Fwiw, this is something I wanted to do with the current architecture of how modules with! Work with terraform work with terraform a value to an undeclared variable worked a... The alternative hypothesis always be the research hypothesis almost 2 years ago saying `` 'll. Found was n't supported two things that could be causing the error you are seeing as an incentive conference... New C files during compile/execution n't use variable in module source parameters with external. Record sensitive values in the docs is because native terraform has a limitation on backends! It, if it 's for separating environments, workspaces is not bad. Automatically select the workspace for you the entire source parameter error message if the wrong is.
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