New data source aws_ec2_transit_gateway_route_tables

.changelog/17589.txt

@@ -0,0 +1,3 @@
+```release-note:new-data-source
+aws_ec2_transit_gateway_route_tables
+```

aws/data_source_aws_ec2_transit_gateway_route_tables.go

@@ -0,0 +1,86 @@
+package aws
+
+import (
+	"fmt"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/ec2"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+	"github.com/terraform-providers/terraform-provider-aws/aws/internal/keyvaluetags"
+)
+
+func dataSourceAwsEc2TransitGatewayRouteTables() *schema.Resource {
+	return &schema.Resource{
+		Read: dataSourceAwsEc2TransitGatewayRouteTablesRead,
+
+		Schema: map[string]*schema.Schema{
+			"filter": ec2CustomFiltersSchema(),
+
+			"ids": {
+				Type:     schema.TypeSet,
+				Computed: true,
+				Elem:     &schema.Schema{Type: schema.TypeString},
+				Set:      schema.HashString,
+			},
+
+			"tags": tagsSchemaComputed(),
+		},
+	}
+}
+
+func dataSourceAwsEc2TransitGatewayRouteTablesRead(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).ec2conn
+
+	input := &ec2.DescribeTransitGatewayRouteTablesInput{}
+
+	input.Filters = append(input.Filters, buildEC2TagFilterList(
+		keyvaluetags.New(d.Get("tags").(map[string]interface{})).Ec2Tags(),
+	)...)
+
+	input.Filters = append(input.Filters, buildEC2CustomFilterList(
+		d.Get("filter").(*schema.Set),
+	)...)
+
+	if len(input.Filters) == 0 {
+		// Don't send an empty filters list; the EC2 API won't accept it.
+		input.Filters = nil
+	}
+
+	var transitGatewayRouteTables []*ec2.TransitGatewayRouteTable
+
+	err := conn.DescribeTransitGatewayRouteTablesPages(input, func(page *ec2.DescribeTransitGatewayRouteTablesOutput, lastPage bool) bool {
+		if page == nil {
+			return !lastPage
+		}
+
+		transitGatewayRouteTables = append(transitGatewayRouteTables, page.TransitGatewayRouteTables...)
+
+		return !lastPage
+	})
+
+	if err != nil {
+		return fmt.Errorf("error describing EC2 Transit Gateway Route Tables: %w", err)
+	}
+
+	if len(transitGatewayRouteTables) == 0 {
+		return fmt.Errorf("no matching EC2 Transit Gateway Route Tables found")
+	}
+
+	var ids []string
+
+	for _, transitGatewayRouteTable := range transitGatewayRouteTables {
+		if transitGatewayRouteTable == nil {
+			continue
+		}
+
+		ids = append(ids, aws.StringValue(transitGatewayRouteTable.TransitGatewayRouteTableId))
+	}
+
+	d.SetId(meta.(*AWSClient).region)
+
+	if err = d.Set("ids", ids); err != nil {
+		return fmt.Errorf("error setting ids: %w", err)
+	}
+
+	return nil
+}

aws/data_source_aws_ec2_transit_gateway_route_tables_test.go

@@ -0,0 +1,70 @@
+package aws
+
+import (
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+)
+
+func TestAccDataSourceAwsEc2TransitGatewayRouteTables_basic(t *testing.T) {
+	dataSourceName := "data.aws_ec2_transit_gateway_route_tables.test"
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck:  func() { testAccPreCheck(t); testAccPreCheckAWSEc2TransitGateway(t) },
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccDataSourceAwsEc2TransitGatewayRouteTablesConfig,
+				Check: resource.ComposeTestCheckFunc(
+					testCheckResourceAttrGreaterThanValue(dataSourceName, "ids.#", "0"),
+				),
+			},
+		},
+	})
+}
+
+func TestAccDataSourceAwsEc2TransitGatewayRouteTables_Filter(t *testing.T) {
+	dataSourceName := "data.aws_ec2_transit_gateway_route_tables.test"
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck:  func() { testAccPreCheck(t); testAccPreCheckAWSEc2TransitGateway(t) },
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccDataSourceAwsEc2TransitGatewayRouteTablesTransitGatewayFilter,
+				Check: resource.ComposeTestCheckFunc(
+					testCheckResourceAttrGreaterThanValue(dataSourceName, "ids.#", "0"),
+				),
+			},
+		},
+	})
+}
+
+const testAccDataSourceAwsEc2TransitGatewayRouteTablesConfig = `
+resource "aws_ec2_transit_gateway" "test" {}
+
+resource "aws_ec2_transit_gateway_route_table" "test" {
+  transit_gateway_id = aws_ec2_transit_gateway.test.id
+}
+
+data "aws_ec2_transit_gateway_route_tables" "test" {
+  depends_on = [aws_ec2_transit_gateway_route_table.test]
+}
+`
+
+const testAccDataSourceAwsEc2TransitGatewayRouteTablesTransitGatewayFilter = `
+resource "aws_ec2_transit_gateway" "test" {}
+
+resource "aws_ec2_transit_gateway_route_table" "test" {
+  transit_gateway_id = aws_ec2_transit_gateway.test.id
+}
+
+data "aws_ec2_transit_gateway_route_tables" "test" {
+  filter {
+    name   = "transit-gateway-id"
+    values = [aws_ec2_transit_gateway.test.id]
+  }
+
+  depends_on = [aws_ec2_transit_gateway_route_table.test]
+}
+`

aws/provider.go

@@ -235,6 +235,7 @@ func Provider() *schema.Provider {
 			"aws_ec2_transit_gateway_dx_gateway_attachment":  dataSourceAwsEc2TransitGatewayDxGatewayAttachment(),
 			"aws_ec2_transit_gateway_peering_attachment":     dataSourceAwsEc2TransitGatewayPeeringAttachment(),
 			"aws_ec2_transit_gateway_route_table":            dataSourceAwsEc2TransitGatewayRouteTable(),
+			"aws_ec2_transit_gateway_route_tables":           dataSourceAwsEc2TransitGatewayRouteTables(),
 			"aws_ec2_transit_gateway_vpc_attachment":         dataSourceAwsEc2TransitGatewayVpcAttachment(),
 			"aws_ec2_transit_gateway_vpn_attachment":         dataSourceAwsEc2TransitGatewayVpnAttachment(),
 			"aws_ecr_authorization_token":                    dataSourceAwsEcrAuthorizationToken(),

website/docs/d/ec2_transit_gateway_route_tables.html.markdown

@@ -0,0 +1,48 @@
+---
+subcategory: "EC2"
+layout: "aws"
+page_title: "AWS: aws_ec2_transit_gateway_route_tables"
+description: |-
+   Provides information for multiple EC2 Transit Gateway Route Tables
+---
+
+# Data Source: aws_ec2_transit_gateway_route_tables
+
+Provides information for multiple EC2 Transit Gateway Route Tables, such as their identifiers.
+
+## Example Usage
+
+The following shows outputing all Transit Gateway Route Table Ids.
+
+```hcl
+data "aws_ec2_transit_gateway_route_tables" "example" {}
+
+output "example" {
+  value = data.aws_ec2_transit_gateway_route_table.example.ids
+}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `filter` - (Optional) Custom filter block as described below.
+
+* `tags` - (Optional) A mapping of tags, each pair of which must exactly match
+  a pair on the desired transit gateway route table.
+
+More complex filters can be expressed using one or more `filter` sub-blocks,
+which take the following arguments:
+
+* `name` - (Required) The name of the field to filter by, as defined by
+  [the underlying AWS API](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeTransitGatewayRouteTables.html).
+
+* `values` - (Required) Set of values that are accepted for the given field.
+  A Transit Gateway Route Table will be selected if any one of the given values matches.
+
+## Attributes Reference
+
+In addition to all arguments above, the following attributes are exported:
+
+* `id` - AWS Region.
+* `ids` - Set of Transit Gateway Route Table identifiers.