provider/aws: New DataSource: aws_partition (hashicorp#11675)

builtin/providers/aws/data_source_aws_partition.go

@@ -0,0 +1,33 @@
+package aws
+
+import (
+	"log"
+	"time"
+
+	"github.com/hashicorp/terraform/helper/schema"
+)
+
+func dataSourceAwsPartition() *schema.Resource {
+	return &schema.Resource{
+		Read: dataSourceAwsPartitionRead,
+
+		Schema: map[string]*schema.Schema{
+			"partition": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+		},
+	}
+}
+
+func dataSourceAwsPartitionRead(d *schema.ResourceData, meta interface{}) error {
+	client := meta.(*AWSClient)
+
+	log.Printf("[DEBUG] Reading Partition.")
+	d.SetId(time.Now().UTC().String())
+
+	log.Printf("[DEBUG] Setting AWS Partition to %s.", client.partition)
+	d.Set("partition", meta.(*AWSClient).partition)
+
+	return nil
+}

builtin/providers/aws/data_source_aws_partition_test.go

@@ -0,0 +1,44 @@
+package aws
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/hashicorp/terraform/helper/resource"
+	"github.com/hashicorp/terraform/terraform"
+)
+
+func TestAccAWSPartition_basic(t *testing.T) {
+	resource.Test(t, resource.TestCase{
+		PreCheck:  func() { testAccPreCheck(t) },
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccCheckAwsPartitionConfig_basic,
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckAwsPartition("data.aws_partition.current"),
+				),
+			},
+		},
+	})
+}
+
+func testAccCheckAwsPartition(n string) resource.TestCheckFunc {
+	return func(s *terraform.State) error {
+		rs, ok := s.RootModule().Resources[n]
+		if !ok {
+			return fmt.Errorf("Can't find resource: %s", n)
+		}
+
+		expected := testAccProvider.Meta().(*AWSClient).partition
+		if rs.Primary.Attributes["partition"] != expected {
+			return fmt.Errorf("Incorrect Partition: expected %q, got %q", expected, rs.Primary.Attributes["partition"])
+		}
+
+		return nil
+	}
+}
+
+const testAccCheckAwsPartitionConfig_basic = `
+data "aws_partition" "current" { }
+`

builtin/providers/aws/provider.go

@@ -174,6 +174,7 @@ func Provider() terraform.ResourceProvider {
 			"aws_iam_server_certificate":   dataSourceAwsIAMServerCertificate(),
 			"aws_instance":                 dataSourceAwsInstance(),
 			"aws_ip_ranges":                dataSourceAwsIPRanges(),
+			"aws_partition":                dataSourceAwsPartition(),
 			"aws_prefix_list":              dataSourceAwsPrefixList(),
 			"aws_redshift_service_account": dataSourceAwsRedshiftServiceAccount(),
 			"aws_region":                   dataSourceAwsRegion(),

website/source/docs/providers/aws/d/partition.html.markdown

@@ -0,0 +1,40 @@
+---
+layout: "aws"
+page_title: "AWS: aws_partition"
+sidebar_current: "docs-aws-datasource-partition"
+description: |-
+  Get AWS partition identifier
+---
+
+# aws\_partition
+
+Use this data source to lookup current AWS partition in which Terraform is working
+
+## Example Usage
+
+```
+data "aws_partition" "current" { }
+
+data "aws_iam_policy_document" "s3_policy" {
+  statement {
+    sid = "1"
+
+    actions = [
+      "s3:ListBucket",
+    ]
+
+    resources = [
+      "arn:${data.aws_partition.current.partition}:s3:::my-bucket",
+    ]
+  }
+}
+
+```
+
+## Argument Reference
+
+There are no arguments available for this data source.
+
+## Attributes Reference
+
+`partition` is set to the identifier of the current partition.

website/source/layouts/aws.erb

@@ -80,6 +80,9 @@
                         <li<%= sidebar_current("docs-aws-datasource-kms-secret") %>>
                             <a href="/docs/providers/aws/d/kms_secret.html">aws_kms_secret</a>
                         </li>
+                        <li<%= sidebar_current("docs-aws-datasource-partition") %>>
+                            <a href="/docs/providers/aws/d/partition.html">aws_partition</a>
+                        </li>
                         <li<%= sidebar_current("docs-aws-datasource-prefix-list") %>>
                             <a href="/docs/providers/aws/d/prefix_list.html">aws_prefix_list</a>
                         </li>