provider/aws: Added RDS event subscriptions

builtin/providers/aws/provider.go

@@ -145,6 +145,7 @@ func Provider() terraform.ResourceProvider {
 			"aws_codedeploy_deployment_group":              resourceAwsCodeDeployDeploymentGroup(),
 			"aws_codecommit_repository":                    resourceAwsCodeCommitRepository(),
 			"aws_customer_gateway":                         resourceAwsCustomerGateway(),
+			"aws_db_event_subscription":                    resourceAwsDbEventSubscription(),
 			"aws_db_instance":                              resourceAwsDbInstance(),
 			"aws_db_parameter_group":                       resourceAwsDbParameterGroup(),
 			"aws_db_security_group":                        resourceAwsDbSecurityGroup(),

builtin/providers/aws/resource_aws_db_event_subscription.go

@@ -0,0 +1,333 @@
+package aws
+
+import (
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/awserr"
+	"github.com/aws/aws-sdk-go/service/rds"
+	"github.com/hashicorp/terraform/helper/resource"
+	"github.com/hashicorp/terraform/helper/schema"
+)
+
+func resourceAwsDbEventSubscription() *schema.Resource {
+	return &schema.Resource{
+		Create: resourceAwsDbEventSubscriptionCreate,
+		Read:   resourceAwsDbEventSubscriptionRead,
+		Update: resourceAwsDbEventSubscriptionUpdate,
+		Delete: resourceAwsDbEventSubscriptionDelete,
+		Schema: map[string]*schema.Schema{
+			"name": &schema.Schema{
+				Type:         schema.TypeString,
+				Required:     true,
+				ForceNew:     true,
+				ValidateFunc: validateDbEventSubscriptionName,
+			},
+			"sns_topic": &schema.Schema{
+				Type:     schema.TypeString,
+				Required: true,
+			},
+			"event_categories": &schema.Schema{
+				Type:     schema.TypeSet,
+				Optional: true,
+				Elem:     &schema.Schema{Type: schema.TypeString},
+				Set:      schema.HashString,
+			},
+			"source_ids": &schema.Schema{
+				Type:     schema.TypeSet,
+				Optional: true,
+				ForceNew: true,
+				Elem:     &schema.Schema{Type: schema.TypeString},
+				Set:      schema.HashString,
+				// ValidateFunc: validateDbEventSubscriptionSourceIds,
+				// requires source_type to be set, does not seem to be a way to validate this
+			},
+			"source_type": &schema.Schema{
+				Type:     schema.TypeString,
+				Optional: true,
+			},
+			"enabled": &schema.Schema{
+				Type:     schema.TypeBool,
+				Optional: true,
+				Default:  true,
+			},
+			"customer_aws_id": &schema.Schema{
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"tags": tagsSchema(),
+		},
+	}
+}
+
+func resourceAwsDbEventSubscriptionCreate(d *schema.ResourceData, meta interface{}) error {
+	rdsconn := meta.(*AWSClient).rdsconn
+	name := d.Get("name").(string)
+	tags := tagsFromMapRDS(d.Get("tags").(map[string]interface{}))
+
+	sourceIdsSet := d.Get("source_ids").(*schema.Set)
+	sourceIds := make([]*string, sourceIdsSet.Len())
+	for i, sourceId := range sourceIdsSet.List() {
+		sourceIds[i] = aws.String(sourceId.(string))
+	}
+
+	eventCategoriesSet := d.Get("event_categories").(*schema.Set)
+	eventCategories := make([]*string, eventCategoriesSet.Len())
+	for i, eventCategory := range eventCategoriesSet.List() {
+		eventCategories[i] = aws.String(eventCategory.(string))
+	}
+
+	request := &rds.CreateEventSubscriptionInput{
+		SubscriptionName: aws.String(name),
+		SnsTopicArn:      aws.String(d.Get("sns_topic").(string)),
+		Enabled:          aws.Bool(d.Get("enabled").(bool)),
+		SourceIds:        sourceIds,
+		SourceType:       aws.String(d.Get("source_type").(string)),
+		EventCategories:  eventCategories,
+		Tags:             tags,
+	}
+
+	log.Println("[DEBUG] Create RDS Event Subscription:", request)
+
+	_, err := rdsconn.CreateEventSubscription(request)
+	if err != nil {
+		return fmt.Errorf("Error creating RDS Event Subscription %s: %s", name, err)
+	}
+
+	log.Println(
+		"[INFO] Waiting for RDS Event Subscription to be ready")
+
+	stateConf := &resource.StateChangeConf{
+		Pending:    []string{"creating"},
+		Target:     []string{"active"},
+		Refresh:    resourceAwsDbEventSubscriptionRefreshFunc(d, meta.(*AWSClient).rdsconn),
+		Timeout:    40 * time.Minute,
+		MinTimeout: 10 * time.Second,
+		Delay:      30 * time.Second, // Wait 30 secs before starting
+	}
+
+	// Wait, catching any errors
+	_, err = stateConf.WaitForState()
+	if err != nil {
+		return fmt.Errorf("Creating RDS Event Subscription %s failed: %s", d.Id(), err)
+	}
+
+	return resourceAwsDbEventSubscriptionRead(d, meta)
+}
+
+func resourceAwsDbEventSubscriptionRead(d *schema.ResourceData, meta interface{}) error {
+	sub, err := resourceAwsDbEventSubscriptionRetrieve(d.Get("name").(string), meta.(*AWSClient).rdsconn)
+	if err != nil {
+		return fmt.Errorf("Error retrieving RDS Event Subscription %s: %s", d.Id(), err)
+	}
+	if sub == nil {
+		d.SetId("")
+		return nil
+	}
+
+	d.SetId(*sub.CustSubscriptionId)
+	if err := d.Set("name", sub.CustSubscriptionId); err != nil {
+		return err
+	}
+	if err := d.Set("sns_topic", sub.SnsTopicArn); err != nil {
+		return err
+	}
+	if err := d.Set("source_type", sub.SourceType); err != nil {
+		return err
+	}
+	if err := d.Set("enabled", sub.Enabled); err != nil {
+		return err
+	}
+	if err := d.Set("source_ids", flattenStringList(sub.SourceIdsList)); err != nil {
+		return err
+	}
+	if err := d.Set("event_categories", flattenStringList(sub.EventCategoriesList)); err != nil {
+		return err
+	}
+	if err := d.Set("customer_aws_id", sub.CustomerAwsId); err != nil {
+		return err
+	}
+
+	// list tags for resource
+	// set tags
+	conn := meta.(*AWSClient).rdsconn
+	arn := buildRDSEventSubscriptionARN(d.Get("customer_aws_id").(string), d.Id(), meta.(*AWSClient).region)
+	resp, err := conn.ListTagsForResource(&rds.ListTagsForResourceInput{
+		ResourceName: aws.String(arn),
+	})
+
+	if err != nil {
+		log.Printf("[DEBUG] Error retrieving tags for ARN: %s", arn)
+	}
+
+	var dt []*rds.Tag
+	if len(resp.TagList) > 0 {
+		dt = resp.TagList
+	}
+	d.Set("tags", tagsToMapRDS(dt))
+
+	return nil
+}
+
+func resourceAwsDbEventSubscriptionRetrieve(
+	name string, rdsconn *rds.RDS) (*rds.EventSubscription, error) {
+
+	request := &rds.DescribeEventSubscriptionsInput{
+		SubscriptionName: aws.String(name),
+	}
+
+	describeResp, err := rdsconn.DescribeEventSubscriptions(request)
+	if err != nil {
+		if rdserr, ok := err.(awserr.Error); ok && rdserr.Code() == "SubscriptionNotFound" {
+			log.Printf("[WARN] No RDS Event Subscription by name (%s) found", name)
+			return nil, nil
+		}
+		return nil, fmt.Errorf("Error reading RDS Event Subscription %s: %s", name, err)
+	}
+
+	if len(describeResp.EventSubscriptionsList) != 1 {
+		return nil, fmt.Errorf("Unable to find RDS Event Subscription: %#v", describeResp.EventSubscriptionsList)
+	}
+
+	return describeResp.EventSubscriptionsList[0], nil
+}
+
+func resourceAwsDbEventSubscriptionUpdate(d *schema.ResourceData, meta interface{}) error {
+	rdsconn := meta.(*AWSClient).rdsconn
+
+	d.Partial(true)
+	requestUpdate := false
+
+	req := &rds.ModifyEventSubscriptionInput{
+		SubscriptionName: aws.String(d.Id()),
+	}
+
+	if d.HasChange("event_categories") {
+		eventCategoriesSet := d.Get("event_categories").(*schema.Set)
+		req.EventCategories = make([]*string, eventCategoriesSet.Len())
+		for i, eventCategory := range eventCategoriesSet.List() {
+			req.EventCategories[i] = aws.String(eventCategory.(string))
+		}
+		requestUpdate = true
+	}
+
+	if d.HasChange("enabled") {
+		req.Enabled = aws.Bool(d.Get("enabled").(bool))
+		requestUpdate = true
+	}
+
+	if d.HasChange("sns_topic") {
+		req.SnsTopicArn = aws.String(d.Get("sns_topic").(string))
+		requestUpdate = true
+	}
+
+	if d.HasChange("source_type") {
+		req.SourceType = aws.String(d.Get("source_type").(string))
+		requestUpdate = true
+	}
+
+	log.Printf("[DEBUG] Send RDS Event Subscription modification request: %#v", requestUpdate)
+	if requestUpdate {
+		log.Printf("[DEBUG] RDS Event Subscription modification request: %#v", req)
+		_, err := rdsconn.ModifyEventSubscription(req)
+		if err != nil {
+			return fmt.Errorf("Modifying RDS Event Subscription %s failed: %s", d.Id(), err)
+		}
+
+		log.Println(
+			"[INFO] Waiting for RDS Event Subscription modification to finish")
+
+		stateConf := &resource.StateChangeConf{
+			Pending:    []string{"modifying"},
+			Target:     []string{"active"},
+			Refresh:    resourceAwsDbEventSubscriptionRefreshFunc(d, meta.(*AWSClient).rdsconn),
+			Timeout:    40 * time.Minute,
+			MinTimeout: 10 * time.Second,
+			Delay:      30 * time.Second, // Wait 30 secs before starting
+		}
+
+		// Wait, catching any errors
+		_, err = stateConf.WaitForState()
+		if err != nil {
+			return fmt.Errorf("Modifying RDS Event Subscription %s failed: %s", d.Id(), err)
+		}
+		d.SetPartial("event_categories")
+		d.SetPartial("enabled")
+		d.SetPartial("sns_topic")
+		d.SetPartial("source_type")
+	}
+
+	arn := buildRDSEventSubscriptionARN(d.Get("customer_aws_id").(string), d.Id(), meta.(*AWSClient).region)
+	if err := setTagsRDS(rdsconn, d, arn); err != nil {
+		return err
+	} else {
+		d.SetPartial("tags")
+	}
+	d.Partial(false)
+
+	return nil
+}
+
+func resourceAwsDbEventSubscriptionDelete(d *schema.ResourceData, meta interface{}) error {
+	rdsconn := meta.(*AWSClient).rdsconn
+	deleteOpts := rds.DeleteEventSubscriptionInput{
+		SubscriptionName: aws.String(d.Id()),
+	}
+
+	if _, err := rdsconn.DeleteEventSubscription(&deleteOpts); err != nil {
+		rdserr, ok := err.(awserr.Error)
+		if !ok {
+			return fmt.Errorf("Error deleting RDS Event Subscription %s: %s", d.Id(), err)
+		}
+
+		if rdserr.Code() != "DBEventSubscriptionNotFoundFault" {
+			log.Printf("[WARN] RDS Event Subscription %s missing during delete", d.Id())
+			return fmt.Errorf("Error deleting RDS Event Subscription %s: %s", d.Id(), err)
+		}
+	}
+
+	stateConf := &resource.StateChangeConf{
+		Pending:    []string{"deleting"},
+		Target:     []string{},
+		Refresh:    resourceAwsDbEventSubscriptionRefreshFunc(d, meta.(*AWSClient).rdsconn),
+		Timeout:    40 * time.Minute,
+		MinTimeout: 10 * time.Second,
+		Delay:      30 * time.Second, // Wait 30 secs before starting
+	}
+	_, err := stateConf.WaitForState()
+	if err != nil {
+		return fmt.Errorf("Error deleting RDS Event Subscription %s: %s", d.Id(), err)
+	}
+	return err
+}
+
+func resourceAwsDbEventSubscriptionRefreshFunc(
+	d *schema.ResourceData,
+	rdsconn *rds.RDS) resource.StateRefreshFunc {
+
+	return func() (interface{}, string, error) {
+		sub, err := resourceAwsDbEventSubscriptionRetrieve(d.Get("name").(string), rdsconn)
+
+		if err != nil {
+			log.Printf("Error on retrieving DB Event Subscription when waiting: %s", err)
+			return nil, "", err
+		}
+
+		if sub == nil {
+			return nil, "", nil
+		}
+
+		if sub.Status != nil {
+			log.Printf("[DEBUG] DB Event Subscription status for %s: %s", d.Id(), *sub.Status)
+		}
+
+		return sub, *sub.Status, nil
+	}
+}
+
+func buildRDSEventSubscriptionARN(customerAwsId, subscriptionId, region string) string {
+	arn := fmt.Sprintf("arn:aws:rds:%s:%s:es:%s", region, customerAwsId, subscriptionId)
+	return arn
+}