// setTags is a helper to set the tags for a resource. It expects the // tags field to be named "tags" func setTagsS3(conn *s3.S3, d *schema.ResourceData) error { if d.HasChange("tags") { oraw, nraw := d.GetChange("tags") o := oraw.(map[string]interface{}) n := nraw.(map[string]interface{}) create, remove := diffTagsS3(tagsFromMapS3(o), tagsFromMapS3(n)) // Set tags if len(remove) > 0 { log.Printf("[DEBUG] Removing tags: %#v", remove) err := conn.DeleteBucketTagging(&s3.DeleteBucketTaggingRequest{ Bucket: aws.String(d.Get("bucket").(string)), }) if err != nil { return err } } if len(create) > 0 { log.Printf("[DEBUG] Creating tags: %#v", create) tagging := s3.Tagging{ TagSet: create, XMLName: xml.Name{ Space: "http://s3.amazonaws.com/doc/2006-03-01/", Local: "Tagging", }, } // AWS S3 API requires us to send a base64 encoded md5 hash of the // content, which we need to build ourselves since aws-sdk-go does not. b, err := xml.Marshal(tagging) if err != nil { return err } h := md5.New() h.Write(b) base := base64.StdEncoding.EncodeToString(h.Sum(nil)) req := &s3.PutBucketTaggingRequest{ Bucket: aws.String(d.Get("bucket").(string)), ContentMD5: aws.String(base), Tagging: &tagging, } err = conn.PutBucketTagging(req) if err != nil { return err } } } return nil }