111 lines
3.1 KiB
Go
111 lines
3.1 KiB
Go
package aws
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import (
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"github.com/aws/aws-sdk-go/aws/awserr"
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"github.com/aws/aws-sdk-go/service/s3"
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"github.com/aws/aws-sdk-go/service/s3/s3iface"
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"github.com/cloudskiff/driftctl/pkg/parallel"
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remoteerror "github.com/cloudskiff/driftctl/pkg/remote/error"
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"github.com/cloudskiff/driftctl/pkg/remote/deserializer"
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"github.com/cloudskiff/driftctl/pkg/resource"
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"github.com/cloudskiff/driftctl/pkg/resource/aws"
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awsdeserializer "github.com/cloudskiff/driftctl/pkg/resource/aws/deserializer"
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"github.com/cloudskiff/driftctl/pkg/terraform"
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"github.com/sirupsen/logrus"
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"github.com/zclconf/go-cty/cty"
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)
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type S3BucketSupplier struct {
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reader terraform.ResourceReader
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deserializer deserializer.CTYDeserializer
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awsClientFactory AwsClientFactoryInterface
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runner *terraform.ParallelResourceReader
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}
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func NewS3BucketSupplier(runner *parallel.ParallelRunner, factory AwsClientFactoryInterface) *S3BucketSupplier {
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return &S3BucketSupplier{
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terraform.Provider(terraform.AWS),
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awsdeserializer.NewS3BucketDeserializer(),
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factory,
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terraform.NewParallelResourceReader(runner),
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}
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}
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func (s S3BucketSupplier) Resources() ([]resource.Resource, error) {
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retrieve, err := s.list()
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if err != nil {
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return nil, err
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}
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return s.deserializer.Deserialize(retrieve)
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}
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func (s *S3BucketSupplier) list() ([]cty.Value, error) {
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input := &s3.ListBucketsInput{}
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s3Client := s.awsClientFactory.GetS3Client(nil)
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response, err := s3Client.ListBuckets(input)
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if err != nil {
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return nil, remoteerror.NewResourceEnumerationError(err, aws.AwsS3BucketResourceType)
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}
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for _, bucket := range response.Buckets {
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b := *bucket
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s.runner.Run(func() (cty.Value, error) {
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return s.readBucket(b, &s3Client)
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})
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}
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return s.runner.Wait()
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}
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func readBucketRegion(client *s3iface.S3API, name string) (string, error) {
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bucketLocationRequest := s3.GetBucketLocationInput{Bucket: &name}
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bucketLocationResponse, err := (*client).GetBucketLocation(&bucketLocationRequest)
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if err != nil {
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awsErr, ok := err.(awserr.Error)
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if ok && awsErr.Code() == s3.ErrCodeNoSuchBucket {
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logrus.WithFields(logrus.Fields{
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"bucket": name,
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}).Warning("Unable to retrieve bucket region, this may be an inconsistency in S3 api for fresh deleted bucket, skipping ...")
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return "", nil
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}
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return "", err
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}
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// Buckets in Region us-east-1 have a LocationConstraint of null.
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// https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketLocation.html#API_GetBucketLocation_ResponseSyntax
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if bucketLocationResponse.LocationConstraint == nil {
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return "us-east-1", err
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}
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return *bucketLocationResponse.LocationConstraint, nil
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}
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func (s *S3BucketSupplier) readBucket(bucket s3.Bucket, client *s3iface.S3API) (cty.Value, error) {
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name := *bucket.Name
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region, err := readBucketRegion(client, name)
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if err != nil {
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return cty.NilVal, err
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}
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if region == "" {
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return cty.NilVal, nil
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}
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s3Bucket, err := s.reader.ReadResource(terraform.ReadResourceArgs{
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Ty: aws.AwsS3BucketResourceType,
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ID: name,
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Attributes: map[string]string{
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"aws_region": region,
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},
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})
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if err != nil {
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return cty.NilVal, err
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}
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return *s3Bucket, err
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}
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