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resource_aws_route53_record_migrate.go
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resource_aws_route53_record_migrate.go
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package aws
import (
"fmt"
"log"
"strings"
"github.com/hashicorp/terraform/terraform"
)
func resourceAwsRoute53RecordMigrateState(
v int, is *terraform.InstanceState, meta interface{}) (*terraform.InstanceState, error) {
switch v {
case 0:
log.Println("[INFO] Found AWS Route53 Record State v0; migrating to v1 then v2")
v1InstanceState, err := migrateRoute53RecordStateV0toV1(is)
if err != nil {
return v1InstanceState, err
}
return migrateRoute53RecordStateV1toV2(v1InstanceState)
case 1:
log.Println("[INFO] Found AWS Route53 Record State v1; migrating to v2")
return migrateRoute53RecordStateV1toV2(is)
default:
return is, fmt.Errorf("Unexpected schema version: %d", v)
}
}
func migrateRoute53RecordStateV0toV1(is *terraform.InstanceState) (*terraform.InstanceState, error) {
if is.Empty() {
log.Println("[DEBUG] Empty InstanceState; nothing to migrate.")
return is, nil
}
log.Printf("[DEBUG] Attributes before migration: %#v", is.Attributes)
newName := strings.TrimSuffix(is.Attributes["name"], ".")
is.Attributes["name"] = newName
log.Printf("[DEBUG] Attributes after migration: %#v, new name: %s", is.Attributes, newName)
return is, nil
}
func migrateRoute53RecordStateV1toV2(is *terraform.InstanceState) (*terraform.InstanceState, error) {
if is.Empty() {
log.Println("[DEBUG] Empty InstanceState; nothing to migrate.")
return is, nil
}
log.Printf("[DEBUG] Attributes before migration: %#v", is.Attributes)
if is.Attributes["weight"] != "" && is.Attributes["weight"] != "-1" {
is.Attributes["weighted_routing_policy.#"] = "1"
key := fmt.Sprintf("weighted_routing_policy.0.weight")
is.Attributes[key] = is.Attributes["weight"]
}
if is.Attributes["failover"] != "" {
is.Attributes["failover_routing_policy.#"] = "1"
key := fmt.Sprintf("failover_routing_policy.0.type")
is.Attributes[key] = is.Attributes["failover"]
}
delete(is.Attributes, "weight")
delete(is.Attributes, "failover")
log.Printf("[DEBUG] Attributes after migration: %#v", is.Attributes)
return is, nil
}