terraform/builtin/providers/aws/resource_aws_db_event_subsc...

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2016-05-05 12:14:25 +02:00
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,
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")
}
if d.HasChange("source_ids") {
o, n := d.GetChange("source_ids")
if o == nil {
o = new(schema.Set)
}
if n == nil {
n = new(schema.Set)
}
os := o.(*schema.Set)
ns := n.(*schema.Set)
remove := expandStringList(os.Difference(ns).List())
add := expandStringList(ns.Difference(os).List())
if len(remove) > 0 {
for _, removing := range remove {
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log.Printf("[INFO] Removing %s as a Source Identifier from %q", *removing, d.Id())
_, err := rdsconn.RemoveSourceIdentifierFromSubscription(&rds.RemoveSourceIdentifierFromSubscriptionInput{
SourceIdentifier: removing,
SubscriptionName: aws.String(d.Id()),
})
if err != nil {
return err
}
}
}
if len(add) > 0 {
for _, adding := range add {
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log.Printf("[INFO] Adding %s as a Source Identifier to %q", *adding, d.Id())
_, err := rdsconn.AddSourceIdentifierToSubscription(&rds.AddSourceIdentifierToSubscriptionInput{
SourceIdentifier: adding,
SubscriptionName: aws.String(d.Id()),
})
if err != nil {
return err
}
}
}
d.SetPartial("source_ids")
}
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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
}