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Terraform Tutorials: Meta-Arguments

Meta-arguments in Terraform are special arguments that can be used with resource blocks and modules to control their behavior or influence the infrastructure provisioning process. They provide additional configuration options beyond the regular resource-specific arguments.

Here are some commonly used meta-arguments in Terraform:

  1. depends_on: This meta-argument allows you to define explicit dependencies between resources. It takes a list of resource dependencies, and Terraform ensures that resources are created or destroyed in the correct order based on these dependencies.
resource "aws_instance" "web" {
  # ... resource configuration ...

  depends_on = [aws_security_group.web_sg]

resource "aws_security_group" "web_sg" {
  # ... resource configuration ...
  1. count: This meta-argument allows you to create multiple instances of a resource based on a count value. It is useful when you want to create multiple similar resources without duplicating the configuration block.
resource "aws_instance" "web" {
  count = 3

  # ... resource configuration ...
  1. provider: This meta-argument allows you to specify a specific provider configuration for a resource or module. It is helpful when you have multiple providers defined in your Terraform configuration and want to associate a resource with a specific provider.
resource "aws_instance" "web" {
  provider = aws.region2

  # ... resource configuration ...
Rajesh Kumar
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