Terraform Resources

Overview

• Describes one or more infrastructure objects
• Access attributes via <RESOURCE_TYPE>.<NAME>.<ATTRIBUTE>

Meta-Arguments

• depends_on—specify hidden dependencies
• count
• for_each
• provider—select non-default provider config
• lifecycle—lifecycle customizations
• provisioner—take extra actions after resource creation

Verbs

• Create
• Destroy
• Update in-place
• Destroy and recreate

Addressing

With count

• Address via: <RESOURCE_TYPE>.<NAME>[<INDEX>]
• e.g.

resource "google_compute_instance" "instance" {
  count = 4
 
  #...
}

• Last element: google_compute_instance.instance[3]

With for_each

• Address via: <RESOURCE_TYPE>.<NAME>[KEY]
• e.g.

resource "google_compute_instance" "instance" {
  for_each = {
    foo   = "bar"
    hello = "world"
  }
 
  #...
}

• Last element: google_compute_instance.instance["hello"]