Add support docdb subnet group resource

aws/provider.go

@@ -407,6 +407,7 @@ func Provider() terraform.ResourceProvider {
 			"aws_dms_replication_subnet_group":                 resourceAwsDmsReplicationSubnetGroup(),
 			"aws_dms_replication_task":                         resourceAwsDmsReplicationTask(),
 			"aws_docdb_cluster_parameter_group":                resourceAwsDocDBClusterParameterGroup(),
+			"aws_docdb_subnet_group":                           resourceAwsDocDBSubnetGroup(),
 			"aws_dx_bgp_peer":                                  resourceAwsDxBgpPeer(),
 			"aws_dx_connection":                                resourceAwsDxConnection(),
 			"aws_dx_connection_association":                    resourceAwsDxConnectionAssociation(),

aws/resource_aws_docdb_subnet_group.go

@@ -0,0 +1,219 @@
+package aws
+
+import (
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/docdb"
+
+	"github.com/hashicorp/terraform/helper/resource"
+	"github.com/hashicorp/terraform/helper/schema"
+)
+
+func resourceAwsDocDBSubnetGroup() *schema.Resource {
+	return &schema.Resource{
+		Create: resourceAwsDocDBSubnetGroupCreate,
+		Read:   resourceAwsDocDBSubnetGroupRead,
+		Update: resourceAwsDocDBSubnetGroupUpdate,
+		Delete: resourceAwsDocDBSubnetGroupDelete,
+		Importer: &schema.ResourceImporter{
+			State: schema.ImportStatePassthrough,
+		},
+
+		Schema: map[string]*schema.Schema{
+			"arn": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+
+			"name": {
+				Type:          schema.TypeString,
+				Optional:      true,
+				Computed:      true,
+				ForceNew:      true,
+				ConflictsWith: []string{"name_prefix"},
+				ValidateFunc:  validateDocDBSubnetGroupName,
+			},
+			"name_prefix": {
+				Type:          schema.TypeString,
+				Optional:      true,
+				Computed:      true,
+				ForceNew:      true,
+				ConflictsWith: []string{"name"},
+				ValidateFunc:  validateDocDBSubnetGroupNamePrefix,
+			},
+
+			"description": {
+				Type:     schema.TypeString,
+				Optional: true,
+				Default:  "Managed by Terraform",
+			},
+
+			"subnet_ids": {
+				Type:     schema.TypeSet,
+				Required: true,
+				MinItems: 1,
+				Elem:     &schema.Schema{Type: schema.TypeString},
+				Set:      schema.HashString,
+			},
+
+			"tags": tagsSchema(),
+		},
+	}
+}
+
+func resourceAwsDocDBSubnetGroupCreate(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).docdbconn
+	tags := tagsFromMapDocDB(d.Get("tags").(map[string]interface{}))
+
+	subnetIds := expandStringSet(d.Get("subnet_ids").(*schema.Set))
+
+	var groupName string
+	if v, ok := d.GetOk("name"); ok {
+		groupName = v.(string)
+	} else if v, ok := d.GetOk("name_prefix"); ok {
+		groupName = resource.PrefixedUniqueId(v.(string))
+	} else {
+		groupName = resource.UniqueId()
+	}
+
+	createOpts := docdb.CreateDBSubnetGroupInput{
+		DBSubnetGroupName:        aws.String(groupName),
+		DBSubnetGroupDescription: aws.String(d.Get("description").(string)),
+		SubnetIds:                subnetIds,
+		Tags:                     tags,
+	}
+
+	log.Printf("[DEBUG] Create DocDB Subnet Group: %#v", createOpts)
+	_, err := conn.CreateDBSubnetGroup(&createOpts)
+	if err != nil {
+		return fmt.Errorf("error creating DocDB Subnet Group: %s", err)
+	}
+
+	d.SetId(groupName)
+
+	return resourceAwsDocDBSubnetGroupRead(d, meta)
+}
+
+func resourceAwsDocDBSubnetGroupRead(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).docdbconn
+
+	describeOpts := docdb.DescribeDBSubnetGroupsInput{
+		DBSubnetGroupName: aws.String(d.Id()),
+	}
+
+	var subnetGroups []*docdb.DBSubnetGroup
+	if err := conn.DescribeDBSubnetGroupsPages(&describeOpts, func(resp *docdb.DescribeDBSubnetGroupsOutput, lastPage bool) bool {
+		subnetGroups = append(subnetGroups, resp.DBSubnetGroups...)
+		return !lastPage
+	}); err != nil {
+		if isAWSErr(err, docdb.ErrCodeDBSubnetGroupNotFoundFault, "") {
+			log.Printf("[WARN] DocDB Subnet Group (%s) not found, removing from state", d.Id())
+			d.SetId("")
+			return nil
+		}
+		return fmt.Errorf("error reading DocDB Subnet Group (%s) parameters: %s", d.Id(), err)
+	}
+
+	if len(subnetGroups) != 1 ||
+		*subnetGroups[0].DBSubnetGroupName != d.Id() {
+		return fmt.Errorf("unable to find DocDB Subnet Group: %s, removing from state", d.Id())
+	}
+
+	subnetGroup := subnetGroups[0]
+	d.Set("name", subnetGroup.DBSubnetGroupName)
+	d.Set("description", subnetGroup.DBSubnetGroupDescription)
+	d.Set("arn", subnetGroup.DBSubnetGroupArn)
+
+	subnets := make([]string, 0, len(subnetGroup.Subnets))
+	for _, s := range subnetGroup.Subnets {
+		subnets = append(subnets, aws.StringValue(s.SubnetIdentifier))
+	}
+	if err := d.Set("subnet_ids", subnets); err != nil {
+		return fmt.Errorf("error setting subnet_ids: %s", err)
+	}
+
+	resp, err := conn.ListTagsForResource(&docdb.ListTagsForResourceInput{
+		ResourceName: subnetGroup.DBSubnetGroupArn,
+	})
+
+	if err != nil {
+		return fmt.Errorf("error retrieving tags for ARN: %s", aws.StringValue(subnetGroup.DBSubnetGroupArn))
+	}
+
+	if err := d.Set("tags", tagsToMapDocDB(resp.TagList)); err != nil {
+		return fmt.Errorf("error setting DocDB Subnet Group tags: %s", err)
+	}
+	return nil
+}
+
+func resourceAwsDocDBSubnetGroupUpdate(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).docdbconn
+
+	if d.HasChange("subnet_ids") || d.HasChange("description") {
+		_, n := d.GetChange("subnet_ids")
+		if n == nil {
+			n = new(schema.Set)
+		}
+		sIds := expandStringSet(n.(*schema.Set))
+
+		_, err := conn.ModifyDBSubnetGroup(&docdb.ModifyDBSubnetGroupInput{
+			DBSubnetGroupName:        aws.String(d.Id()),
+			DBSubnetGroupDescription: aws.String(d.Get("description").(string)),
+			SubnetIds:                sIds,
+		})
+
+		if err != nil {
+			return fmt.Errorf("error modify DocDB Subnet Group (%s) parameters: %s", d.Id(), err)
+		}
+	}
+
+	if err := setTagsDocDB(conn, d); err != nil {
+		return fmt.Errorf("error setting DocDB Subnet Group (%s) tags: %s", d.Id(), err)
+	}
+	d.SetPartial("tags")
+
+	return resourceAwsDocDBSubnetGroupRead(d, meta)
+}
+
+func resourceAwsDocDBSubnetGroupDelete(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).docdbconn
+
+	delOpts := docdb.DeleteDBSubnetGroupInput{
+		DBSubnetGroupName: aws.String(d.Id()),
+	}
+
+	log.Printf("[DEBUG] Deleting DocDB Subnet Group: %s", d.Id())
+
+	_, err := conn.DeleteDBSubnetGroup(&delOpts)
+	if err != nil {
+		if isAWSErr(err, docdb.ErrCodeDBSubnetGroupNotFoundFault, "") {
+			return nil
+		}
+		return fmt.Errorf("error deleting DocDB Subnet Group (%s): %s", d.Id(), err)
+	}
+
+	return waitForDocDBSubnetGroupDeletion(conn, d.Id())
+}
+
+func waitForDocDBSubnetGroupDeletion(conn *docdb.DocDB, name string) error {
+	params := &docdb.DescribeDBSubnetGroupsInput{
+		DBSubnetGroupName: aws.String(name),
+	}
+
+	return resource.Retry(10*time.Minute, func() *resource.RetryError {
+		_, err := conn.DescribeDBSubnetGroups(params)
+
+		if isAWSErr(err, docdb.ErrCodeDBSubnetGroupNotFoundFault, "") {
+			return nil
+		}
+
+		if err != nil {
+			return resource.NonRetryableError(err)
+		}
+
+		return resource.RetryableError(fmt.Errorf("DocDB Subnet Group (%s) still exists", name))
+	})
+}