driftctl/pkg/remote/aws/vpc_supplier.go

117 lines
3.1 KiB
Go

package aws
import (
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/aws/aws-sdk-go/service/ec2/ec2iface"
remoteerror "github.com/cloudskiff/driftctl/pkg/remote/error"
"github.com/cloudskiff/driftctl/pkg/remote/deserializer"
"github.com/cloudskiff/driftctl/pkg/resource/aws"
awsdeserializer "github.com/cloudskiff/driftctl/pkg/resource/aws/deserializer"
"github.com/zclconf/go-cty/cty"
"github.com/cloudskiff/driftctl/pkg/resource"
"github.com/cloudskiff/driftctl/pkg/terraform"
"github.com/sirupsen/logrus"
)
type VPCSupplier struct {
reader terraform.ResourceReader
defaultVPCDeserializer deserializer.CTYDeserializer
vpcDeserializer deserializer.CTYDeserializer
client ec2iface.EC2API
defaultVPCRunner *terraform.ParallelResourceReader
vpcRunner *terraform.ParallelResourceReader
}
func NewVPCSupplier(provider *AWSTerraformProvider) *VPCSupplier {
return &VPCSupplier{
provider,
awsdeserializer.NewDefaultVPCDeserializer(),
awsdeserializer.NewVPCDeserializer(),
ec2.New(provider.session),
terraform.NewParallelResourceReader(provider.Runner().SubRunner()),
terraform.NewParallelResourceReader(provider.Runner().SubRunner()),
}
}
func (s *VPCSupplier) Resources() ([]resource.Resource, error) {
input := ec2.DescribeVpcsInput{}
var VPCs []*ec2.Vpc
var defaultVPCs []*ec2.Vpc
err := s.client.DescribeVpcsPages(&input,
func(resp *ec2.DescribeVpcsOutput, lastPage bool) bool {
for _, vpc := range resp.Vpcs {
if vpc.IsDefault != nil && *vpc.IsDefault {
defaultVPCs = append(defaultVPCs, vpc)
continue
}
VPCs = append(VPCs, vpc)
}
return !lastPage
},
)
if err != nil {
return nil, remoteerror.NewResourceEnumerationError(err, aws.AwsVpcResourceType)
}
for _, item := range VPCs {
res := *item
s.vpcRunner.Run(func() (cty.Value, error) {
return s.readVPC(res)
})
}
VPCResources, err := s.vpcRunner.Wait()
if err != nil {
return nil, err
}
for _, item := range defaultVPCs {
res := *item
s.defaultVPCRunner.Run(func() (cty.Value, error) {
return s.readVPC(res)
})
}
// Retrieve results from terraform provider
defaultVPCResources, err := s.defaultVPCRunner.Wait()
if err != nil {
return nil, err
}
// Deserialize
deserializedDefaultVPCs, err := s.defaultVPCDeserializer.Deserialize(defaultVPCResources)
if err != nil {
return nil, err
}
deserializedVPCs, err := s.vpcDeserializer.Deserialize(VPCResources)
if err != nil {
return nil, err
}
resources := make([]resource.Resource, 0, len(VPCResources)+len(deserializedDefaultVPCs))
resources = append(resources, deserializedDefaultVPCs...)
resources = append(resources, deserializedVPCs...)
return resources, nil
}
func (s *VPCSupplier) readVPC(vpc ec2.Vpc) (cty.Value, error) {
var Ty resource.ResourceType = aws.AwsVpcResourceType
if vpc.IsDefault != nil && *vpc.IsDefault {
Ty = aws.AwsDefaultVpcResourceType
}
val, err := s.reader.ReadResource(terraform.ReadResourceArgs{
ID: *vpc.VpcId,
Ty: Ty,
})
if err != nil {
logrus.Error(err)
return cty.NilVal, err
}
return *val, nil
}