Terraform: Double checking state flags

main.tf.js

variable "region" { }

provider "aws" {
  region = "${var.region}"
}

module "ami" {
  source = "github.com/terraform-community-modules/tf_aws_ubuntu_ami/ebs"
  region = "${var.region}"
  distribution = "trusty"
  instance_type = "m1.small"
}

resource "aws_instance" "web" {
  ami = "${module.ami.ami_id}"
  instance_type = "m1.small"
}

shell_session.log

~/issues/github.com/hashicorp/terraform/irc-double-check-state-flags
❯ terraform apply -var region=us-east-1 -state=east.tfstate
aws_instance.web: Creating...
  ami:                      "" => "ami-fc5e7594"
  availability_zone:        "" => "<computed>"
  ebs_block_device.#:       "" => "<computed>"
  ephemeral_block_device.#: "" => "<computed>"
  instance_type:            "" => "m1.small"
  key_name:                 "" => "<computed>"
  private_dns:              "" => "<computed>"
  private_ip:               "" => "<computed>"
  public_dns:               "" => "<computed>"
  public_ip:                "" => "<computed>"
  root_block_device.#:      "" => "<computed>"
  security_groups.#:        "" => "<computed>"
  subnet_id:                "" => "<computed>"
  tenancy:                  "" => "<computed>"
aws_instance.web: Creation complete

Apply complete! Resources: 1 added, 0 changed, 0 destroyed.

The state of your infrastructure has been saved to the path
below. This state is required to modify and destroy your
infrastructure, so keep it safe. To inspect the complete state
use the `terraform show` command.

State path: east.tfstate

~/issues/github.com/hashicorp/terraform/irc-double-check-state-flags
❯ terraform apply -var region=us-west-2 -state=west.tfstate
aws_instance.web: Creating...
  ami:                      "" => "ami-7f89a64f"
  availability_zone:        "" => "<computed>"
  ebs_block_device.#:       "" => "<computed>"
  ephemeral_block_device.#: "" => "<computed>"
  instance_type:            "" => "m1.small"
  key_name:                 "" => "<computed>"
  private_dns:              "" => "<computed>"
  private_ip:               "" => "<computed>"
  public_dns:               "" => "<computed>"
  public_ip:                "" => "<computed>"
  root_block_device.#:      "" => "<computed>"
  security_groups.#:        "" => "<computed>"
  subnet_id:                "" => "<computed>"
  tenancy:                  "" => "<computed>"
aws_instance.web: Creation complete

Apply complete! Resources: 1 added, 0 changed, 0 destroyed.

The state of your infrastructure has been saved to the path
below. This state is required to modify and destroy your
infrastructure, so keep it safe. To inspect the complete state
use the `terraform show` command.

State path: west.tfstate

~/issues/github.com/hashicorp/terraform/irc-double-check-state-flags
❯ terraform apply -var region=us-east-1 -state=east.tfstate
aws_instance.web: Refreshing state... (ID: i-f491d008)

Apply complete! Resources: 0 added, 0 changed, 0 destroyed.

~/issues/github.com/hashicorp/terraform/irc-double-check-state-flags
❯ ls
east.tfstate            main.tf                 west.tfstate.backup
east.tfstate.backup     west.tfstate

~/issues/github.com/hashicorp/terraform/irc-double-check-state-flags
❯ terraform apply -var region=us-east-1 -state=east.tfstate
aws_instance.web: Refreshing state... (ID: i-f491d008)

Apply complete! Resources: 0 added, 0 changed, 0 destroyed.

~/issues/github.com/hashicorp/terraform/irc-double-check-state-flags
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