terraform/website/source/docs/providers/aws/d/availability_zones.html.markdown

layout	page_title	sidebar_current	description
aws	AWS: aws_availability_zones	docs-aws-datasource-availability-zones	Provides a list of Availability Zones which can be used by an AWS account.

aws_availability_zones

The Availability Zones data source allows access to the list of AWS Availability Zones which can be accessed by an AWS account within the region configured in the provider.

This is different from the aws_availability_zone (singular) data source, which provides some details about a specific availability zone.

Example Usage

# Declare the data source
data "aws_availability_zones" "available" {}

# e.g. Create subnets in the first two available availability zones

resource "aws_subnet" "primary" {
  availability_zone = "${data.aws_availability_zones.available.names[0]}"

  # ...
}

resource "aws_subnet" "secondary" {
  availability_zone = "${data.aws_availability_zones.available.names[1]}"

  # ...
}

Argument Reference

The following arguments are supported:

• state - (Optional) Allows to filter list of Availability Zones based on their current state. Can be either "available", "information", "impaired" or "unavailable". By default the list includes a complete set of Availability Zones to which the underlying AWS account has access, regardless of their state.

Attributes Reference

The following attributes are exported:

• names - A list of the Availability Zone names available to the account.