opentofu/builtin/providers/aws/resource_aws_vpc_migrate.go
Paul Stack 4fe7ee16e6 provider/aws: Migrate the state for AWS VPC after IPv6 changes (#13041)
Fixes: #13035

It was pointed out in the issue that the addition of a new parameter
with a default value AND a ForceNew: true is causing Terraform to try
and recreate the VPC

This PR migrates the state to add the default value of false for `assign_generated_ipv6_cidr_block`

```
% make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestAWSVpcMigrateState'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/03/24 12:51:41 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/aws -v -run=TestAWSVpcMigrateState -timeout 120m
=== RUN   TestAWSVpcMigrateState
2017/03/24 12:52:26 [INFO] Found AWS VPC State v0; migrating to v1
2017/03/24 12:52:26 [DEBUG] Attributes before migration: map[string]string{"assign_generated_ipv6_cidr_block":"true"}
2017/03/24 12:52:26 [DEBUG] Attributes after migration: map[string]string{"assign_generated_ipv6_cidr_block":"false"}
2017/03/24 12:52:26 [INFO] Found AWS VPC State v0; migrating to v1
2017/03/24 12:52:26 [DEBUG] Attributes before migration: map[string]string{}
2017/03/24 12:52:26 [DEBUG] Attributes after migration: map[string]string{"assign_generated_ipv6_cidr_block":"false"}
--- PASS: TestAWSVpcMigrateState (0.00s)
PASS
ok  	github.com/hashicorp/terraform/builtin/providers/aws	0.024s
```
2017-03-24 13:02:11 +02:00

34 lines
842 B
Go

package aws
import (
"fmt"
"log"
"github.com/hashicorp/terraform/terraform"
)
func resourceAwsVpcMigrateState(
v int, is *terraform.InstanceState, meta interface{}) (*terraform.InstanceState, error) {
switch v {
case 0:
log.Println("[INFO] Found AWS VPC State v0; migrating to v1")
return migrateVpcStateV0toV1(is)
default:
return is, fmt.Errorf("Unexpected schema version: %d", v)
}
}
func migrateVpcStateV0toV1(is *terraform.InstanceState) (*terraform.InstanceState, error) {
if is.Empty() || is.Attributes == nil {
log.Println("[DEBUG] Empty VPC State; nothing to migrate.")
return is, nil
}
log.Printf("[DEBUG] Attributes before migration: %#v", is.Attributes)
is.Attributes["assign_generated_ipv6_cidr_block"] = "false"
log.Printf("[DEBUG] Attributes after migration: %#v", is.Attributes)
return is, nil
}