forked from hashicorp/terraform-provider-aws
/
resource_aws_appmesh_virtual_node_migrate.go
50 lines (43 loc) · 1.68 KB
/
resource_aws_appmesh_virtual_node_migrate.go
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package aws
import (
"fmt"
"log"
"strings"
"github.com/hashicorp/terraform/terraform"
)
func resourceAwsAppmeshVirtualNodeMigrateState(v int, is *terraform.InstanceState, meta interface{}) (*terraform.InstanceState, error) {
switch v {
case 0:
log.Println("[INFO] Found App Mesh virtual node state v0; migrating to v1")
return migrateAppmeshVirtualNodeStateV0toV1(is)
default:
return is, fmt.Errorf("Unexpected schema version: %d", v)
}
}
func migrateAppmeshVirtualNodeStateV0toV1(is *terraform.InstanceState) (*terraform.InstanceState, error) {
if is.Empty() || is.Attributes == nil {
log.Println("[DEBUG] Empty App Mesh virtual node state; nothing to migrate.")
return is, nil
}
log.Printf("[DEBUG] Attributes before migration: %#v", is.Attributes)
is.Attributes["spec.0.backend.#"] = is.Attributes["spec.0.backends.#"]
delete(is.Attributes, "spec.0.backends.#")
for k, v := range is.Attributes {
if strings.HasPrefix(k, "spec.0.backends.") {
hash := appmeshVirtualNodeBackendHash(map[string]interface{}{
"virtual_service": []interface{}{map[string]interface{}{
"virtual_service_name": v,
}},
})
is.Attributes[fmt.Sprintf("spec.0.backend.%d.virtual_service.#", hash)] = "1"
is.Attributes[fmt.Sprintf("spec.0.backend.%d.virtual_service.0.virtual_service_name", hash)] = v
delete(is.Attributes, k)
}
}
if is.Attributes["spec.0.service_discovery.0.dns.#"] == "1" {
is.Attributes["spec.0.service_discovery.0.dns.0.hostname"] = is.Attributes["spec.0.service_discovery.0.dns.0.service_name"]
delete(is.Attributes, "spec.0.service_discovery.0.dns.0.service_name")
}
log.Printf("[DEBUG] Attributes after migration: %#v", is.Attributes)
return is, nil
}