driftctl/pkg/middlewares/aws_rds_cluster_instance_ex...

61 lines
2.1 KiB
Go

package middlewares
import (
"github.com/sirupsen/logrus"
"github.com/snyk/driftctl/enumeration/resource"
"github.com/snyk/driftctl/pkg/resource/aws"
)
// AwsRDSClusterInstanceExpander search for cluster instances from state to import corresponding remote db instances.
// RDS cluster instance does not represent an actual AWS resource, so shouldn't be used for comparison.
type AwsRDSClusterInstanceExpander struct {
resourceFactory resource.ResourceFactory
}
func NewRDSClusterInstanceExpander(resourceFactory resource.ResourceFactory) AwsRDSClusterInstanceExpander {
return AwsRDSClusterInstanceExpander{
resourceFactory: resourceFactory,
}
}
func (m AwsRDSClusterInstanceExpander) Execute(remoteResources, resourcesFromState *[]*resource.Resource) error {
newResourcesFromState := make([]*resource.Resource, 0)
dbInstances := make([]*resource.Resource, 0)
for _, remoteRes := range *remoteResources {
if remoteRes.ResourceType() != aws.AwsDbInstanceResourceType {
continue
}
dbInstances = append(dbInstances, remoteRes)
}
for _, stateRes := range *resourcesFromState {
// Ignore all resources other than rds_cluster_instance
if stateRes.ResourceType() != aws.AwsRDSClusterInstanceResourceType {
newResourcesFromState = append(newResourcesFromState, stateRes)
continue
}
var found bool
for _, remoteRes := range dbInstances {
// If the db instance's id matches the rds cluster instance's id, import it in the state
if remoteRes.ResourceId() == stateRes.ResourceId() {
found = true
newDbInstance := m.resourceFactory.CreateAbstractResource(aws.AwsDbInstanceResourceType, remoteRes.ResourceId(), *remoteRes.Attributes())
newResourcesFromState = append(newResourcesFromState, newDbInstance)
logrus.WithFields(logrus.Fields{
"id": newDbInstance.ResourceId(),
}).Debug("Created new db instance from RDS cluster instance")
break
}
}
// If we don't manage to find a db instance corresponding to this RDS cluster instance, simply add it back to the state.
if !found {
newResourcesFromState = append(newResourcesFromState, stateRes)
}
}
*resourcesFromState = newResourcesFromState
return nil
}