driftctl/pkg/remote/aws/route_supplier.go

91 lines
2.6 KiB
Go

package aws
import (
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/aws/aws-sdk-go/service/ec2/ec2iface"
"github.com/cloudskiff/driftctl/pkg/remote/deserializer"
"github.com/cloudskiff/driftctl/pkg/resource"
"github.com/cloudskiff/driftctl/pkg/resource/aws"
awsdeserializer "github.com/cloudskiff/driftctl/pkg/resource/aws/deserializer"
"github.com/cloudskiff/driftctl/pkg/terraform"
"github.com/hashicorp/terraform/flatmap"
"github.com/sirupsen/logrus"
"github.com/zclconf/go-cty/cty"
)
type RouteSupplier struct {
reader terraform.ResourceReader
routeDeserializer deserializer.CTYDeserializer
client ec2iface.EC2API
routeRunner *terraform.ParallelResourceReader
}
func NewRouteSupplier(provider *AWSTerraformProvider) *RouteSupplier {
return &RouteSupplier{
provider,
awsdeserializer.NewRouteDeserializer(),
ec2.New(provider.session),
terraform.NewParallelResourceReader(provider.Runner().SubRunner()),
}
}
func (s RouteSupplier) Resources() ([]resource.Resource, error) {
routeTables, err := listRouteTables(s.client, aws.AwsRouteResourceType)
if err != nil {
return nil, err
}
for _, routeTable := range routeTables {
table := *routeTable
for _, route := range table.Routes {
res := *route
s.routeRunner.Run(func() (cty.Value, error) {
return s.readRoute(*table.RouteTableId, res)
})
}
}
routeResources, err := s.routeRunner.Wait()
if err != nil {
return nil, err
}
deserializedRoutes, err := s.routeDeserializer.Deserialize(routeResources)
if err != nil {
return nil, err
}
return deserializedRoutes, nil
}
func (s RouteSupplier) readRoute(tableId string, route ec2.Route) (cty.Value, error) {
var Ty resource.ResourceType = aws.AwsRouteResourceType
attributes := map[string]interface{}{
"route_table_id": tableId,
}
if route.DestinationCidrBlock != nil && *route.DestinationCidrBlock != "" {
attributes["destination_cidr_block"] = *route.DestinationCidrBlock
}
if route.DestinationIpv6CidrBlock != nil && *route.DestinationIpv6CidrBlock != "" {
attributes["destination_ipv6_cidr_block"] = *route.DestinationIpv6CidrBlock
}
// We can ignore error there as remote will always return us a valid route
routeId, _ := aws.CalculateRouteID(&tableId, route.DestinationCidrBlock, route.DestinationIpv6CidrBlock)
val, err := s.reader.ReadResource(terraform.ReadResourceArgs{
ID: routeId,
Ty: Ty,
Attributes: flatmap.Flatten(attributes),
})
if err != nil {
logrus.WithFields(logrus.Fields{
"type": Ty,
}).Error(err)
return cty.NilVal, err
}
return *val, nil
}