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In this example, the security_groups
variable is defined with a type of list(string)
, and it is given a default value of ["default"]
. The AWS provider is then configured to use the us-west-2
region.
The aws_instance
resource is used to launch Amazon EC2 instances. The vpc_security_group_ids
argument is used to specify the security groups for the instance, and it is set to the value of the security_groups
variable.
You can change the value of security_groups
by modifying the default value in the variable definition, or you can specify a different value when you run Terraform by using the -var
flag. For example, if you want to launch an instance with security groups ["default", "web-security-group"]
, you can run the following command:
$ terraform apply -var ‘security_groups=[“default”, “web-security-group”]’
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