Implement data aws_pricing_product

aws/data_source_aws_pricing_product.go

@@ -0,0 +1,102 @@
+package aws
+
+import (
+	"log"
+
+	"encoding/json"
+	"fmt"
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/pricing"
+	"github.com/hashicorp/terraform/helper/hashcode"
+	"github.com/hashicorp/terraform/helper/schema"
+)
+
+const (
+	awsPricingTermMatch = "TERM_MATCH"
+)
+
+func dataSourceAwsPricingProduct() *schema.Resource {
+	return &schema.Resource{
+		Read: dataSourceAwsPricingProductRead,
+		Schema: map[string]*schema.Schema{
+			"service_code": {
+				Type:     schema.TypeString,
+				Required: true,
+			},
+			"filters": {
+				Type:     schema.TypeList,
+				Required: true,
+				MinItems: 1,
+				Elem: &schema.Resource{
+					Schema: map[string]*schema.Schema{
+						"field": {
+							Type:     schema.TypeString,
+							Required: true,
+						},
+						"value": {
+							Type:     schema.TypeString,
+							Required: true,
+						},
+					},
+				},
+			},
+			"result": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+		},
+	}
+}
+
+func dataSourceAwsPricingProductRead(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).pricingconn
+
+	params := &pricing.GetProductsInput{
+		ServiceCode: aws.String(d.Get("service_code").(string)),
+		Filters:     []*pricing.Filter{},
+	}
+
+	filters := d.Get("filters")
+	for _, v := range filters.([]interface{}) {
+		m := v.(map[string]interface{})
+		params.Filters = append(params.Filters, &pricing.Filter{
+			Field: aws.String(m["field"].(string)),
+			Value: aws.String(m["value"].(string)),
+			Type:  aws.String(awsPricingTermMatch),
+		})
+	}
+
+	log.Printf("[DEBUG] Reading pricing of products: %s", params)
+	resp, err := conn.GetProducts(params)
+	if err != nil {
+		return fmt.Errorf("Error reading pricing of products: %s", err)
+	}
+
+	if err = verifyProductsPriceListLength(resp.PriceList); err != nil {
+		return err
+	}
+
+	pricingResult, err := json.Marshal(resp.PriceList[0])
+	if err != nil {
+		return fmt.Errorf("Invalid JSON value returned by AWS: %s", err)
+	}
+
+	d.SetId(fmt.Sprintf("%d", hashcode.String(params.String())))
+	d.Set("result", string(pricingResult))
+	return nil
+}
+
+func verifyProductsPriceListLength(priceList []aws.JSONValue) error {
+	numberOfElements := len(priceList)
+	if numberOfElements == 0 {
+		return fmt.Errorf("Pricing product query did not return any elements")
+	} else if numberOfElements > 1 {
+		priceListBytes, err := json.Marshal(priceList)
+		priceListString := string(priceListBytes)
+		if err != nil {
+			priceListString = err.Error()
+		}
+		return fmt.Errorf("Pricing product query not precise enough. Returned more than one element: %s", priceListString)
+	}
+	return nil
+}

aws/data_source_aws_pricing_product_test.go

@@ -0,0 +1,120 @@
+package aws
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/hashicorp/terraform/helper/resource"
+	"github.com/hashicorp/terraform/terraform"
+)
+
+func TestAccDataSourceAwsPricingProduct_ec2(t *testing.T) {
+	os.Setenv("AWS_DEFAULT_REGION", "us-east-1")
+	resource.Test(t, resource.TestCase{
+		PreCheck:  func() { testAccPreCheck(t) },
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccDataSourceAwsPricingProductConfigEc2("test", "c5.large"),
+				Check: resource.ComposeAggregateTestCheckFunc(
+					resource.TestCheckResourceAttrSet("data.aws_pricing_product.test", "result"),
+					testAccPricingCheckValueIsJSON("data.aws_pricing_product.test"),
+				),
+			},
+		},
+	})
+}
+
+func TestAccDataSourceAwsPricingProduct_redshift(t *testing.T) {
+	os.Setenv("AWS_DEFAULT_REGION", "us-east-1")
+	resource.Test(t, resource.TestCase{
+		PreCheck:  func() { testAccPreCheck(t) },
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccDataSourceAwsPricingProductConfigRedshift(),
+				Check: resource.ComposeAggregateTestCheckFunc(
+					resource.TestCheckResourceAttrSet("data.aws_pricing_product.test", "result"),
+					testAccPricingCheckValueIsJSON("data.aws_pricing_product.test"),
+				),
+			},
+		},
+	})
+}
+
+func testAccDataSourceAwsPricingProductConfigEc2(dataName string, instanceType string) string {
+	return fmt.Sprintf(`data "aws_pricing_product" "%s" {
+		service_code = "AmazonEC2"
+
+		filters = [
+		  {
+			field = "instanceType"
+			value = "%s"
+		  },
+		  {
+			field = "operatingSystem"
+			value = "Linux"
+		  },
+		  {
+			field = "location"
+			value = "US East (N. Virginia)"
+		  },
+		  {
+			field = "preInstalledSw"
+			value = "NA"
+		  },
+		  {
+			field = "licenseModel"
+			value = "No License required"
+		  },
+		  {
+			field = "tenancy"
+			value = "Shared"
+		  },
+		]
+}
+`, dataName, instanceType)
+}
+
+func testAccDataSourceAwsPricingProductConfigRedshift() string {
+	return fmt.Sprintf(`data "aws_pricing_product" "test" {
+		service_code = "AmazonRedshift"
+
+		filters = [
+		  {
+			field = "instanceType"
+			value = "ds1.xlarge"
+			},
+			{
+			field = "location"
+			value = "US East (N. Virginia)"
+		  },
+		]
+}
+`)
+}
+
+func testAccPricingCheckValueIsJSON(data string) resource.TestCheckFunc {
+	return func(s *terraform.State) error {
+		rs, ok := s.RootModule().Resources[data]
+
+		if !ok {
+			return fmt.Errorf("Can't find resource: %s", data)
+		}
+
+		result := rs.Primary.Attributes["result"]
+		var objmap map[string]*json.RawMessage
+
+		if err := json.Unmarshal([]byte(result), &objmap); err != nil {
+			return fmt.Errorf("%s result value (%s) is not JSON: %s", data, result, err)
+		}
+
+		if len(objmap) == 0 {
+			return fmt.Errorf("%s result value (%s) unmarshalling resulted in an empty map", data, result)
+		}
+
+		return nil
+	}
+}

aws/provider.go

@@ -232,6 +232,7 @@ func Provider() terraform.ResourceProvider {
 			"aws_network_interface":                dataSourceAwsNetworkInterface(),
 			"aws_partition":                        dataSourceAwsPartition(),
 			"aws_prefix_list":                      dataSourceAwsPrefixList(),
+			"aws_pricing_product":                  dataSourceAwsPricingProduct(),
 			"aws_rds_cluster":                      dataSourceAwsRdsCluster(),
 			"aws_redshift_cluster":                 dataSourceAwsRedshiftCluster(),
 			"aws_redshift_service_account":         dataSourceAwsRedshiftServiceAccount(),

website/docs/d/pricing_product.html.markdown

@@ -0,0 +1,71 @@
+---
+layout: "aws"
+page_title: "AWS: aws_pricing_product"
+sidebar_current: "docs-aws-datasource-pricing-product"
+description: |-
+  Get information regarding the pricing of an Amazon product
+---
+
+# Data Source: aws_pricing_product
+
+Use this data source to get the pricing information of all products in AWS.
+This data source is only available in a us-east-1 or ap-south-1 provider.
+
+## Example Usage
+
+```hcl
+data "aws_pricing_product" "test1" {
+    service_code = "AmazonEC2"
+
+    filters = [
+        {
+        field = "instanceType"
+        value = "c5.xlarge"
+        },
+        {
+        field = "operatingSystem"
+        value = "Linux"
+        },
+        {
+        field = "location"
+        value = "US East (N. Virginia)"
+        },
+        {
+        field = "preInstalledSw"
+        value = "NA"
+        },
+        {
+        field = "licenseModel"
+        value = "No License required"
+        },
+        {
+        field = "tenancy"
+        value = "Shared"
+        },
+    ]
+}
+
+data "aws_pricing_product" "test2" {
+    service_code = "AmazonRedshift"
+
+    filters = [
+        {
+        field = "instanceType"
+        value = "ds1.xlarge"
+        },
+        {
+        field = "location"
+        value = "US East (N. Virginia)"
+        },
+    ]
+}
+```
+
+## Argument Reference
+
+ * `service_code` - (Required) The code of the service. Available service codes can be fetched using the DescribeServices pricing API call.
+ * `filters` - (Required) A list of filters. Passed directly to the API (see GetProducts API reference). These filters must describe a single product, this resource will fail if more than one product is returned by the API.
+
+## Attributes Reference
+
+ * `result` - Set to the product returned from the API.