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