github.com/mohanarpit/terraform@v0.6.16-0.20160909104007-291f29853544/builtin/providers/aws/resource_aws_route53_record_migrate.go (about) 1 package aws 2 3 import ( 4 "fmt" 5 "log" 6 "strings" 7 8 "github.com/hashicorp/terraform/terraform" 9 ) 10 11 func resourceAwsRoute53RecordMigrateState( 12 v int, is *terraform.InstanceState, meta interface{}) (*terraform.InstanceState, error) { 13 switch v { 14 case 0: 15 log.Println("[INFO] Found AWS Route53 Record State v0; migrating to v1 then v2") 16 v1InstanceState, err := migrateRoute53RecordStateV0toV1(is) 17 if err != nil { 18 return v1InstanceState, err 19 } 20 return migrateRoute53RecordStateV1toV2(v1InstanceState) 21 case 1: 22 log.Println("[INFO] Found AWS Route53 Record State v1; migrating to v2") 23 return migrateRoute53RecordStateV1toV2(is) 24 default: 25 return is, fmt.Errorf("Unexpected schema version: %d", v) 26 } 27 } 28 29 func migrateRoute53RecordStateV0toV1(is *terraform.InstanceState) (*terraform.InstanceState, error) { 30 if is.Empty() { 31 log.Println("[DEBUG] Empty InstanceState; nothing to migrate.") 32 return is, nil 33 } 34 35 log.Printf("[DEBUG] Attributes before migration: %#v", is.Attributes) 36 newName := strings.TrimSuffix(is.Attributes["name"], ".") 37 is.Attributes["name"] = newName 38 log.Printf("[DEBUG] Attributes after migration: %#v, new name: %s", is.Attributes, newName) 39 return is, nil 40 } 41 42 func migrateRoute53RecordStateV1toV2(is *terraform.InstanceState) (*terraform.InstanceState, error) { 43 if is.Empty() { 44 log.Println("[DEBUG] Empty InstanceState; nothing to migrate.") 45 return is, nil 46 } 47 log.Printf("[DEBUG] Attributes before migration: %#v", is.Attributes) 48 if is.Attributes["weight"] != "" && is.Attributes["weight"] != "-1" { 49 is.Attributes["weighted_routing_policy.#"] = "1" 50 key := fmt.Sprintf("weighted_routing_policy.0.weight") 51 is.Attributes[key] = is.Attributes["weight"] 52 } 53 if is.Attributes["failover"] != "" { 54 is.Attributes["failover_routing_policy.#"] = "1" 55 key := fmt.Sprintf("failover_routing_policy.0.type") 56 is.Attributes[key] = is.Attributes["failover"] 57 } 58 delete(is.Attributes, "weight") 59 delete(is.Attributes, "failover") 60 log.Printf("[DEBUG] Attributes after migration: %#v", is.Attributes) 61 return is, nil 62 }