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  }