GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. Terraform should have merged the map from main.

Terraform merges only the first submap from vars. The first submap depends on the order they are declared in vars. Note that regiona was successfully overwritten, the change to regionb was not made, and regionc is completely missing. Nested maps work fine if declared in hcl, ie if regionc is moved from vars. Not this isn't very intuitive, and we usually do try to accept the more condensed JSON as input, so I'll keep this open to try and fix that issue as well as the less than helpful error message we now get.

I assume it's the same issue. May I ask for a workaround for this? I tried with the structure above but no luck. I think this is another edge case without a workaround at the moment. Fixing JSON input is something we're going to be working on soon. It's when I ask terraform to accept 2 or more variable declarations in a -var-file v0. I just verified this in v0.

The fix here comes from the switch to the new JSON parser implementation that is also now used for. This fix is already in master and ready to be included in the forthcoming v0. This helps our maintainers find and focus on the active issues.

Terraform json to map

If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further. Skip to content. Dismiss Join GitHub today GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together.

Sign up.Learn the Learn how Terraform fits into the. Note: This page is about Terraform 0. For Terraform 0. Input variables serve as parameters for a Terraform module, allowing aspects of the module to be customized without altering the module's own source code, and allowing modules to be shared between different configurations.

Using Variables in AWS Tags with Terraform

When you declare variables in the root module of your configuration, you can set their values using CLI options and environment variables. When you declare them in child modulesthe calling module should pass values in the module block. Input variable usage is introduced in the Getting Started guide section Input Variables.

Note: For brevity, input variables are often referred to as just "variables" or "Terraform variables" when it is clear from context what sort of variable is being discussed.

Other kinds of variables in Terraform include environment variables set by the shell where Terraform runs and expression variables used to indirectly represent a value in an expression. The label after the variable keyword is a name for the variable, which must be unique among all variables in the same module. This name is used to assign a value to the variable from outside and to reference the variable's value from within the module.

The name of a variable can be any valid identifier except the following:. These names are reserved for meta-arguments in module configuration blocksand cannot be declared as variable names.

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The variable declaration can optionally include a type argument to specify what value types are accepted for the variable, as described in the following section. The variable declaration can also include a default argument. If present, the variable is considered to be optional and the default value will be used if no value is set when calling the module or running Terraform.

The default argument requires a literal value and cannot reference other objects in the configuration. Within the module that declared a variable, its value can be accessed from within expressions as var. The value assigned to a variable can be accessed only from expressions within the module where it was declared. The type argument in a variable block allows you to restrict the type of value that will be accepted as the value for a variable.

If no type constraint is set then a value of any type is accepted. While type constraints are optional, we recommend specifying them; they serve as easy reminders for users of the module, and allow Terraform to return a helpful error message if the wrong type is used.

Type constraints are created from a mixture of type keywords and type constructors. The supported type keywords are:. The keyword any may be used to indicate that any type is acceptable. For more information on the meaning and behavior of these different types, as well as detailed information about automatic conversion of complex types, see Type Constraints. If both the type and default arguments are specified, the given default value must be convertible to the specified type.

Because the input variables of a module are part of its user interface, you can briefly describe the purpose of each variable using the optional description argument:. The description should concisely explain the purpose of the variable and what kind of value is expected. This description string might be included in documentation about the module, and so it should be written from the perspective of the user of the module rather than its maintainer.

For commentary for module maintainers, use comments.

terraform json to map

Warning: This feature is currently experimental and is subject to breaking changes even in minor releases. We welcome your feedback, but cannot recommend using this feature in production modules yet. In addition to Type Constraints as described above, a module author can specify arbitrary custom validation rules for a particular variable using a validation block nested within the corresponding variable block:.

The condition argument is an expression that must use the value of the variable to return true if the value is valid, or false if it is invalid. The expression can refer only to the variable that the condition applies to, and must not produce errors. If the failure of an expression is the basis of the validation decision, use the can function to detect such errors.GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together.

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. AWS Secrets Manager can store secrets as a plain string or json with flat string to string mapping. It would be nice to have native support for retrieving secrets stored as json. Currently Terraform returns only string output with no easy way to convert it to map. The Secrets Manager API only returns a SecretString Go type string attribute to retrieve the value, which handles both cases by returning just the string value in the first case and a JSON string representing the value in the second case.

TypeString attribute is a direct return of the SecretString of Go type string attribute from the Secrets Manager API and therefore is the most correct from a Terraform resource implementation standpoint as it supports all use cases. The second case of a JSON mapping being returned in its "raw" string format is understandably harder to work with given the current native abilities of Terraform core as of 0.

Thanks to some of the stricter typing that will be available with the enhancements with Terraform's configuration language coming in the next major version of Terraform preview blog post available herethe implementation of a jsondecde built-in function will be provided.

This should make something like the following possible:. Given the above, I believe we should wait until Terraform 0. TypeMap attribute or changing the behavior of the existing attribute. I understood the secret string can be three types, string, map and binary, then PR will not be suitable. I will close it. I will try the plugin terraform-provider-jsondecode you mentioned, if it doesn't work as expect, I will continuous to use mine, until v0.

Because our project use secret map only and need this feature now. We recently released our first beta of Terraform 0. This enables the functionality desired here without any changes to the Terraform AWS Provider itself once we officially release a Terraform 0. It can be parsed with Terraform 0. I will keep this issue open to add a jsondecode example to the resource and data source documentation and it will be closed when we release our Terraform 0. Coinciding with the timing of the second beta release of Terraform 0.

Please create new GitHub issues for any additional feature requests or bug reports with this functionality. This helps our maintainers find and focus on the active issues. If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Skip to content. Dismiss Join GitHub today GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together.

Sign up.As part of the lead up to the release of Terraform 0. However, the implementation of this prior to version 0.

terraform json to map

The HCL improvements in Terraform 0. Terraform has supported JSON as an alternate configuration format since its initial release in Terraform 0. In some cases, it felt as though JSON didn't feel like a first class solution in the tool.

Terraform 0. This gives additional tooling more power in working with Terraform configurations and also enables people to author configurations in whichever language they feel comfortable. In versions prior to 0. In particular, the JSON-based configuration decoder produces errors in any cases where the input cannot be mapped exactly onto the expected configuration structure.

Terraform now knows that the top-level name "variable" represents a set of variable blocks in the native syntax, and so it can see that the value of the property "example" should be an object representing the contents of a variable "example" block in HCL.

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The above example can therefore be corrected by replacing the string value with an object:. To properly produce error messages like these, the new JSON decoder is necessarily more strict than in prior versions.

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As a result, JSON-based configuration generated for prior versions may need to be adjusted slightly to fit within the new constraints. A big limitation of JSON is the lack of comment support. While we recommend using the native syntax for hand-written configuration, a JSON comment feature may be useful to include commentary in generated configuration, such as identifying which program generated the file.

terraform json to map

If you use JSON with Terraform, please run a terraform validate or terraform plan and correct any error messages. This was part 8 of the blog post series previewing Terraform 0. To learn more about how to upgrade to Terraform 0. If you have any feedback or concerns about these changes, please communicate with the Terraform team via the public mailing list. This is the eighth post of the series highlighting new features in Terraform 0. The example below shows an invalid configuration the error produced in Terraform 0.

Slide 1 of Case Study. Easy Collaboration with Terraform Cloud at Rubrik. View All.You now have enough Terraform knowledge to create useful configurations, but we're still hard-coding access keys, AMIs, etc.

To become truly shareable and version controlled, we need to parameterize the configurations. This page introduces input variables as a way to do this. If you're starting this tutorial from scratch, create a directory named learn-terraform-aws-instance and paste this code into a file named example. Let's first extract our region into a variable. Create another file variables. Note : The file can be named anything, since Terraform loads all files in the directory ending in. This defines the region variable within your Terraform configuration.

There is a default value which makes it optional. If no default is set, the variable is required and must be set using one of the techniques mentioned in this guide. This uses the variable named regionprefixed with var. It tells Terraform that you're accessing a variable and that the value of the region variable should be used here.

It configures the AWS provider with the given variable. There are multiple ways to assign variables. The order below is also the order in which variable values are chosen. You can set variables directly on the command-line with the -var flag. Any command in Terraform that inspects the configuration accepts this flag, such as applyplanand refresh.

Once again, setting variables this way will not save them, and they'll have to be entered repeatedly as commands are executed. To persist variable values, create a file and assign variables within this file.

Create a file named terraform. Terraform automatically loads all files in the current directory with the exact name of terraform.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I got the following error:. An alternative way to address this would be to write a data-only module which encapsulates the data fetching and has its own configured aws provider to fetch from the right account.

Although it's usually not recommended for a child module to have its own provider blocks, that is allowed and can be okay if the provider in question is only being used to fetch data sources, because Terraform will never need to "destroy" those. The recommendation against nested module provider blocks is that it will cause trouble if you remove a module while the resource objects declared inside it still exist, and then there's no provider configuration left to use to destroy them.

With that said, here's an example of the above idea, intended to be used as a child module which can be imported by any configuration that needs access to this data:. A more direct response to the original question is that provisioners are designed as one-shot actions and so it's not possible to access any data they might return.

The external data source is one way to run an external program to gather some data, if a suitable data source is not already available.

I actually answered my own question. I am using a data external block to run my aws cli command and referencing the block in my module. Learn more. Asked 10 months ago. Active 10 months ago.

Viewed times. Name, 'value':. If you are on 0. BMW you should write that up as an answer as it's a much better approach than what the OP is trying to do. Active Oldest Votes. Martin Atkins Martin Atkins Thanks for this. I actually thought of doing it this way but considered it too messy with my terraform structure. We've modeled our TF structure off the way Amazon defines resources So top level is an accounts folder with each member account having its own folder, then each account has folders for environments each environment is its own vpc in our caseand under each environment is a folder for each resource type.

Simply an organizational concept, but configuring providers within an environment that has it's own provider defined seemed messy at the time.

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The new moderator agreement is now live for moderators to accept across theā€¦. Allow bountied questions to be closed by regular users.This getting started track is intended to help you quickly learn the fundamentals of Terraform and the Azure Provider. After completing the tutorial, you'll know how to author a basic Terraform configuration for Azure.

There are two different but closely related topics covered here: How to use Terraform, and how to use the Azure Provider. The tutorial begins with a introduction to Terraform basics. As you progress through the track, you'll modify a configuration step-by-step until you have explored all of the core parts of a Terraform configuration.

Along the way we'll explore the Azure Provisioner azurerm for Terraform. Azurerm provides a declarative interface for managing Azure resources with Terraform.

Terraform with Azure : Map, lookup \u0026 conditional syntax

Azurerm lets you create, modify, and delete Azure resources in a Terraform configuration. An Azure account. If you don't have an Azure account, create one now. This tutorial can be completed using only the services included in an Azure free account. You need to have at least Contributor role in the subscription to create and manage infrastructure for the tutorial. If you are using a paid subscription, you may be charged for the resources needed to complete the tutorial. A system with Terraform 0.

This track includes instructions for installing Terraform on the platform of your choice. Azure Cloud Shell is the most convenient platform for this tutorial.

Everything you need is preinstalled, and Cloud Shell uses the credentials of the signed-in Azure user. Most of the procedures assume that you are using Cloud Shell, either from the Azure Portal or standalone. Code samples are provided as-is. The set of files used to describe infrastructure in Terraform is known as a Terraform configuration.

In this lesson you write your first configuration to create and configure a resource group in Azure.

Terraform json to map

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