Terraform cant access attributes on a list of objects.

Have a question about this project?

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. I have used this datasource to gather data from the cluster and was encountering an error related to this datasource:. I have found that this is not specified in the documentation, but to access the properties of the data object, it is necessary to specify that it is within a list.

Terraform cant access attributes on a list of objects.

Terraform provides a greater ability to define Infrastructure as Code IaC through its support of Expressions. Expressions are lines of code that define configuration and attributes on resources in the Terraform HCL code as the Terraform code is executed with the terraform plan command. This enables a rich ability to dynamically configure resources based on passed input variables to the Terraform Project , or even via looking up other resources managed by the same Terraform Project. There is a huge variety to the different code expressions that can be written in Terraform to suit the requirements of different Infrastructure as Code projects. Terraform expressions support many built-in functions to help writing the expression code needed for a solutions infrastructure definition. When using a Terraform list type to define an Array of value or objects, it may be necessary at times to lookup those values programmatically. The Terraform index function can be used to lookup the index location of a value in a list. The function accepts an argument that is a reference to the list to search, and an argument that is the value to lookup the index for within the list. The following is an example usage of the index function to find the index of a value in a simple list of string values:. The previous example shows how simple it is to use the index function to retrieve the index of a value within a list of strings aka list string. This can be used exactly the same way to lookup the index of values in a list of numbers aka list number too. The following is an example usage of the index function to find the index of a value in a simple list of numbers:. There are also times when the list may contain objects that have their own attributes.

The following is an example usage of the index function to find the index of a value in a simple list of string values:. Prior versions of Terraform actually had some quite surprising behavior in this scenario - a splat reference to an attribute of list type would concatenate all the lists in the result.

.

Terraform is a powerful tool for managing infrastructure, but it can sometimes be difficult to use. This can make it difficult to manage complex configurations. Terraform is an open-source infrastructure as code IaC tool that allows you to manage your infrastructure declaratively. This means that you can describe your infrastructure in a configuration file, and Terraform will take care of creating and provisioning the resources that you need. Make sure that the list of objects is not empty.

Terraform cant access attributes on a list of objects.

Terraform is a powerful tool for managing infrastructure, but it can sometimes be tricky to get the hang of. One common problem that Terraform users encounter is not being able to access attributes on a list of objects. Terraform is a tool for building, changing, and versioning infrastructure.

Gamepass steam deck

This enables a rich ability to dynamically configure resources based on passed input variables to the Terraform Project , or even via looking up other resources managed by the same Terraform Project. Terraform provides a greater ability to define Infrastructure as Code IaC through its support of Expressions. I have found that this is not specified in the documentation, but to access the properties of the data object, it is necessary to specify that it is within a list. Volunteering to Work on This Issue If you are interested in working on this issue, please leave a comment. Already on GitHub? All reactions. To find out more about our cookie policy, see here: Privacy Policy. I am also seeing this issue described in comment All reactions. This can be used exactly the same way to lookup the index of values in a list of numbers aka list number too. Let me know if you have any further questions. Note that "this isn't currently supported" is fine since it seems like the previous behavior was not explicitly supported at which point this could be a feature rather than a bug. He has worked with companies of all sizes from startups to large enterprises.

Hands-on: Try the Create Dynamic Expressions tutorial.

This enables a rich ability to dynamically configure resources based on passed input variables to the Terraform Project , or even via looking up other resources managed by the same Terraform Project. Hey DustinChaloupka - apologies for the confusion here. Based on the documentation and schema, I would not expect this resource to return a list of EKS cluster resources; in fact, since the lookup is done by name , it should be impossible for more than one cluster to be returned. The following is an example of using a splat lookup on a list of objects to lookup the index of the object in the list with the name attribute set to the value being looked up:. Please see our prioritization guide for information on how we prioritize. Reload to refresh your session. All reactions. Labels bug core. Labels documentation Introduces or discusses updates to documentation. I took a quick look over the data source's code, and it doesn't appear that this data source returns a list of EKS clusters. There is a huge variety to the different code expressions that can be written in Terraform to suit the requirements of different Infrastructure as Code projects. You signed in with another tab or window.