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Questions and Answers
Which keyword is used to declare the type of resource in Terraform configuration files?
What does Terraform keep track of in the tfstate file?
What does the 'depends_on' field in Terraform do?
What are Terraform Data Sources used for?
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What does a data block in Terraform request?
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What do managed resources in Terraform do?
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What are the most essential components of Terraform configuration files?
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What type of information can a Terraform configuration make use of through data sources?
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What does Terraform do with objects when reading from data sources?
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What do Terraform resources allow users to define?
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Which files are typically included in a Terraform module?
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What are Terraform variables used for?
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Which file takes precedence when setting variable values in Terraform?
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What are Terraform outputs used for?
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What can be used to suppress sensitive values in CLI output when using Terraform outputs?
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What are resources in Terraform?
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What are the possible variable types in Terraform?
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What is the purpose of the description field in a variable block?
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Which file is used to declare Terraform variable values?
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How can a root module use outputs in Terraform?
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Study Notes
Terraform Configuration Files
- The keyword
resourceis used to declare the type of resource in Terraform configuration files.
Terraform State
- Terraform keeps track of the current state of infrastructure in the
tfstatefile.
Dependencies
- The
depends_onfield in Terraform is used to specify explicit dependencies between resources.
Data Sources
- Terraform Data Sources are used to fetch and compute data used in Terraform configurations.
- A data block in Terraform requests data from external sources.
- Terraform reads objects from data sources and stores them in its state.
- Data sources allow Terraform configurations to make use of external information, such as AWS credentials.
Resources and Modules
- Managed resources in Terraform allow users to define and manage infrastructure components.
- The essential components of Terraform configuration files are resources, data sources, and variables.
- A Terraform module typically includes files such as
main.tf,variables.tf, andoutputs.tf.
Variables
- Terraform variables are used to parameterize Terraform configurations.
- The
terraform.tfvarsfile is used to declare Terraform variable values. - The
terraform.tfvarsfile takes precedence when setting variable values in Terraform. - Terraform variable types include
string,list,map,number,bool, andobject. - The purpose of the
descriptionfield in a variable block is to provide a description of the variable.
Outputs
- Terraform outputs are used to export values from a Terraform configuration.
- To suppress sensitive values in CLI output when using Terraform outputs, use the
sensitiveattribute. - A root module can use outputs in Terraform to export values to other modules.
Resources and Infrastructure
- Resources in Terraform are used to define and manage infrastructure components.
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Description
Test your knowledge of Terraform configuration files and variables with this quiz. Learn about the structure of a typical Terraform module and how to declare and use variables in your resource provisioning.
