terraform/builtin/providers/aws/resource_aws_key_pair_migra...

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package aws
import (
"fmt"
"log"
"strings"
"github.com/hashicorp/terraform/terraform"
)
func resourceAwsKeyPairMigrateState(
v int, is *terraform.InstanceState, meta interface{}) (*terraform.InstanceState, error) {
switch v {
case 0:
log.Println("[INFO] Found AWS Key Pair State v0; migrating to v1")
return migrateKeyPairStateV0toV1(is)
default:
return is, fmt.Errorf("Unexpected schema version: %d", v)
}
return is, nil
}
func migrateKeyPairStateV0toV1(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)
// replace public_key with a stripped version, removing `\n` from the end
// see https://github.com/hashicorp/terraform/issues/3455
is.Attributes["public_key"] = strings.TrimSpace(is.Attributes["public_key"])
log.Printf("[DEBUG] Attributes after migration: %#v", is.Attributes)
return is, nil
}