WEBVTT

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In this lecture,

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we will take a look at meta arguments in Terraform.

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Until now,

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we have been able to create

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single resources

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such as

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a local file

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and a random pet resource using Terraform,

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but

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what if you want to create

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multiple instances of the same resource,

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say,

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three local files for example?

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If we were using a shell script

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or some other programming language,

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we could create multiple files like this.

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In this example,

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we have created a bash script called

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create files.sh,

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which uses a four-loop to create

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empty files inside the root directory.

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The files will be called pet,

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followed by the range from one to three.

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While we cannot use the same script

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as it is within the resource block,

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Terraform offers several alternatives

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to achieve the same goal,

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and these can be done

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by making use of specific meta arguments in Terraform.

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Meta arguments can be used within

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any resource block

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to change the behavior of resources.

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We've already seen two types

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of meta arguments already in this course.

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That depends on

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for defining explicit dependency between resources

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and the lifecycle rules

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which define how the resources should be created,

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updated, and destroyed within Terraform.

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Now,

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let us look at some more meta arguments

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specifically related to loops in Terraform.