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Terraform Commands

Validate

terraform validate

Plan

terraform plan
terraform plan -var-file="dev.tfvars"

Apply

terraform apply
terraform apply -var-file="dev.tfvars"
terraform apply -var-file="dev.tfvars" -auto-approve

Destroy

terraform destroy
terraform destroy -var-file="dev.tfvars"
terraform destroy -var-file="dev.tfvars" -aotu-approve

Target Destroy

resource "myresource" "xyz"{
  # ...resource arguments..
}
module "mymodule" {
  # ...module arguments..
}
terraform destroy -target myresource.xyz
terraform destroy -target module.mymodule

Replace/Taint

terraform apply -replace=<tf_resource_id>

Update Modules

terraform get

*** Find resource list from state***

terraform show

*** Detect Configuration Drift***

terraform plan -refresh-only
terraform apply -refresh-only

Terraform Import

# First define the resource in the .tf file
resource "aws_instance" "myvm" {
 ami           = "unknown"
 instance_type = "unknown"
}
# Now execute 
terraform import aws_instance.myvm <Instance ID>
# It update state file for myvm <Instance ID>

Other Commands

terraform state mv
terraform state rm