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Add aws_alb_target_group data source (#764) #1037

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153 changes: 153 additions & 0 deletions aws/data_source_aws_alb_target_group.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,153 @@
package aws

import (
"fmt"

"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/elbv2"
"github.com/hashicorp/errwrap"
"github.com/hashicorp/terraform/helper/schema"
)

func dataSourceAwsAlbTargetGroup() *schema.Resource {
return &schema.Resource{
Read: dataSourceAwsAlbTargetGroupRead,
Schema: map[string]*schema.Schema{
"arn": {
Type: schema.TypeString,
Optional: true,
Computed: true,
},
"arn_suffix": {
Type: schema.TypeString,
Computed: true,
},

"name": {
Type: schema.TypeString,
Optional: true,
Computed: true,
},

"port": {
Type: schema.TypeInt,
Computed: true,
},

"protocol": {
Type: schema.TypeString,
Computed: true,
},

"vpc_id": {
Type: schema.TypeString,
Computed: true,
},

"deregistration_delay": {
Type: schema.TypeInt,
Computed: true,
},

"stickiness": {
Type: schema.TypeList,
Computed: true,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"enabled": {
Type: schema.TypeBool,
Computed: true,
},
"type": {
Type: schema.TypeString,
Computed: true,
},
"cookie_duration": {
Type: schema.TypeInt,
Computed: true,
},
},
},
},

"health_check": {
Type: schema.TypeList,
Computed: true,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"interval": {
Type: schema.TypeInt,
Computed: true,
},

"path": {
Type: schema.TypeString,
Computed: true,
},

"port": {
Type: schema.TypeString,
Computed: true,
},

"protocol": {
Type: schema.TypeString,
Computed: true,
},

"timeout": {
Type: schema.TypeInt,
Computed: true,
},

"healthy_threshold": {
Type: schema.TypeInt,
Computed: true,
},

"matcher": {
Type: schema.TypeString,
Computed: true,
},

"unhealthy_threshold": {
Type: schema.TypeInt,
Computed: true,
},
},
},
},

"tags": tagsSchemaComputed(),
},
}
}

func dataSourceAwsAlbTargetGroupRead(d *schema.ResourceData, meta interface{}) error {
elbconn := meta.(*AWSClient).elbv2conn
tgArn := d.Get("arn").(string)
tgName := d.Get("name").(string)

describeTgOpts := &elbv2.DescribeTargetGroupsInput{}
switch {
case tgArn != "":
describeTgOpts.TargetGroupArns = []*string{aws.String(tgArn)}
case tgName != "":
describeTgOpts.Names = []*string{aws.String(tgName)}
}

describeResp, err := elbconn.DescribeTargetGroups(describeTgOpts)
if err != nil {
return errwrap.Wrapf("Error retrieving ALB Target Group: {{err}}", err)
}
if len(describeResp.TargetGroups) != 1 {
return fmt.Errorf("Search returned %d results, please revise so only one is returned", len(describeResp.TargetGroups))
}

targetGroup := describeResp.TargetGroups[0]

d.SetId(*targetGroup.TargetGroupArn)
return flattenAwsAlbTargetGroupResource(d, meta, targetGroup)
}
172 changes: 172 additions & 0 deletions aws/data_source_aws_alb_target_group_test.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,172 @@
package aws

import (
"fmt"
"testing"

"github.com/hashicorp/terraform/helper/acctest"
"github.com/hashicorp/terraform/helper/resource"
)

func TestAccDataSourceAWSALBTargetGroup_basic(t *testing.T) {
albName := fmt.Sprintf("testalb-%s", acctest.RandStringFromCharSet(13, acctest.CharSetAlphaNum))
targetGroupName := fmt.Sprintf("testtargetgroup-%s", acctest.RandStringFromCharSet(10, acctest.CharSetAlphaNum))

resource.Test(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
Providers: testAccProviders,
Steps: []resource.TestStep{
{
Config: testAccDataSourceAWSALBTargetGroupConfigBasic(albName, targetGroupName),
Check: resource.ComposeAggregateTestCheckFunc(
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "name", targetGroupName),
resource.TestCheckResourceAttrSet("data.aws_alb_target_group.alb_tg_test_with_arn", "arn"),
resource.TestCheckResourceAttrSet("data.aws_alb_target_group.alb_tg_test_with_arn", "arn_suffix"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "port", "8080"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "protocol", "HTTP"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "protocol", "HTTP"),
resource.TestCheckResourceAttrSet("data.aws_alb_target_group.alb_tg_test_with_arn", "vpc_id"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "deregistration_delay", "300"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "tags.%", "1"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "tags.TestName", "TestAccDataSourceAWSALBTargetGroup_basic"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "stickiness.#", "1"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "health_check.#", "1"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "health_check.0.path", "/health"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "health_check.0.port", "8081"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "health_check.0.protocol", "HTTP"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "health_check.0.timeout", "3"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "health_check.0.healthy_threshold", "3"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "health_check.0.unhealthy_threshold", "3"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_arn", "health_check.0.matcher", "200-299"),

resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "name", targetGroupName),
resource.TestCheckResourceAttrSet("data.aws_alb_target_group.alb_tg_test_with_name", "arn"),
resource.TestCheckResourceAttrSet("data.aws_alb_target_group.alb_tg_test_with_name", "arn_suffix"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "port", "8080"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "protocol", "HTTP"),
resource.TestCheckResourceAttrSet("data.aws_alb_target_group.alb_tg_test_with_name", "vpc_id"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "deregistration_delay", "300"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "tags.%", "1"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "tags.TestName", "TestAccDataSourceAWSALBTargetGroup_basic"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "stickiness.#", "1"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "health_check.#", "1"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "health_check.0.path", "/health"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "health_check.0.port", "8081"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "health_check.0.protocol", "HTTP"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "health_check.0.timeout", "3"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "health_check.0.healthy_threshold", "3"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "health_check.0.unhealthy_threshold", "3"),
resource.TestCheckResourceAttr("data.aws_alb_target_group.alb_tg_test_with_name", "health_check.0.matcher", "200-299"),
),
},
},
})
}

func testAccDataSourceAWSALBTargetGroupConfigBasic(albName string, targetGroupName string) string {
return fmt.Sprintf(`resource "aws_alb_listener" "front_end" {
load_balancer_arn = "${aws_alb.alb_test.id}"
protocol = "HTTP"
port = "80"

default_action {
target_group_arn = "${aws_alb_target_group.test.id}"
type = "forward"
}
}

resource "aws_alb" "alb_test" {
name = "%s"
internal = true
security_groups = ["${aws_security_group.alb_test.id}"]
subnets = ["${aws_subnet.alb_test.*.id}"]

idle_timeout = 30
enable_deletion_protection = false

tags {
TestName = "TestAccDataSourceAWSALBTargetGroup_basic"
}
}

resource "aws_alb_target_group" "test" {
name = "%s"
port = 8080
protocol = "HTTP"
vpc_id = "${aws_vpc.alb_test.id}"

health_check {
path = "/health"
interval = 60
port = 8081
protocol = "HTTP"
timeout = 3
healthy_threshold = 3
unhealthy_threshold = 3
matcher = "200-299"
}

tags {
TestName = "TestAccDataSourceAWSALBTargetGroup_basic"
}
}

variable "subnets" {
default = ["10.0.1.0/24", "10.0.2.0/24"]
type = "list"
}

data "aws_availability_zones" "available" {}

resource "aws_vpc" "alb_test" {
cidr_block = "10.0.0.0/16"

tags {
TestName = "TestAccDataSourceAWSALBTargetGroup_basic"
}
}

resource "aws_subnet" "alb_test" {
count = 2
vpc_id = "${aws_vpc.alb_test.id}"
cidr_block = "${element(var.subnets, count.index)}"
map_public_ip_on_launch = true
availability_zone = "${element(data.aws_availability_zones.available.names, count.index)}"

tags {
TestName = "TestAccDataSourceAWSALBTargetGroup_basic"
}
}

resource "aws_security_group" "alb_test" {
name = "allow_all_alb_test"
description = "Used for ALB Testing"
vpc_id = "${aws_vpc.alb_test.id}"

ingress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}

egress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}

tags {
TestName = "TestAccDataSourceAWSALBTargetGroup_basic"
}
}

data "aws_alb_target_group" "alb_tg_test_with_arn" {
arn = "${aws_alb_target_group.test.arn}"
}

data "aws_alb_target_group" "alb_tg_test_with_name" {
name = "${aws_alb_target_group.test.name}"
}`, albName, targetGroupName)
}
1 change: 1 addition & 0 deletions aws/provider.go
Original file line number Diff line number Diff line change
Expand Up @@ -162,6 +162,7 @@ func Provider() terraform.ResourceProvider {
"aws_acm_certificate": dataSourceAwsAcmCertificate(),
"aws_alb": dataSourceAwsAlb(),
"aws_alb_listener": dataSourceAwsAlbListener(),
"aws_alb_target_group": dataSourceAwsAlbTargetGroup(),
"aws_ami": dataSourceAwsAmi(),
"aws_ami_ids": dataSourceAwsAmiIds(),
"aws_autoscaling_groups": dataSourceAwsAutoscalingGroups(),
Expand Down
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