For example, to reference the variable ec2_instance_type that we defined above: On the other hand, output values empower us to export helpful information from our Terraform projects that we have defined and provisioned with Terraform. Combining input and output variables, we get the flexibility to customize, automate, reuse and share our Terraform code easily. Study for the Terraform Associate (002) exam by following these tutorials. Merge the instance-level address into the. JSON output via the -json option requires Terraform v0.12 or later. During, // evaluation, a module call with count or for_each may expand to multiple, // module instances, but in configuration only the block itself is. terraform plan and terraform apply. We can leverage the, To get the JSON-formatted output, we can use the, This is quite useful when we want to pass the outputs to other tools for automation since JSON is way easier to handle programmatically. A root module can use outputs to print certain values in the CLI output after Apply -json rather than for processing complex data types. In this example, the expression Even more, we compared input and output variables and examined multiple use cases where the use of outputs is helpful. GitLab integrates with Terraform through CI/CD templates that use GitLab-managed Terraform state and display Terraform changes on merge requests. Terraform Version. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Resources: 46 added, 0 changed, 0 destroyed. // error_message argument of the failing condition. The following sections describe the JSON output format by example, using a pseudo-JSON notation. You can use this data to configure other parts of your infrastructure // configuration that won't be known until the apply phase. // "expressions" describes the provisioner configuration, // "expressions" describes the resource-type-specific content of the, // "schema_version" is the schema version number indicated by the. In this case, we use the local backend to reach the state of another configuration in the local machine. This will be, // omitted if the action is not replace, or if no paths caused the, // replacement (for example, if the resource was tainted). exist dynamically. An outputed attributes can not only be used for the user reference but it can also act as an input to other resources being created via Terraform. Use terraform show -json
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