bug: AWS dynamodb.DescribeContinuousBackups => 400 (UnknownOperationException)

[futugyou]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

resource "aws_dynamodb_table" "terraform_locks" {
    name = "terraform_locks_s"
    billing_mode = "PAY_PER_REQUEST"
    hash_key = "LockID"

    attribute {
            name = "LockID"
            type = "S"
        }
}

Terraform v1.2.8
provider registry.terraform.io/hashicorp/aws v4.29.0

i user this tf file to create dynamodb table.
tflocal apply -auto-approve
command executes normally, but this is an error in localstack log 'AWS dynamodb.DescribeContinuousBackups => 400 (UnknownOperationException)'.
and when i use awslocal dynamodb list-tables command, and I did not find any tables.

Expected Behavior

i can not find the table in local dynamodb.
LocalStack log

2022-09-22T01:49:08.433  INFO --- [   asgi_gw_1] localstack.request.aws     : AWS dynamodb.CreateTable => 200
2022-09-22T01:49:08.798  INFO --- [   asgi_gw_0] localstack.request.aws     : AWS dynamodb.DescribeTable => 200
2022-09-22T01:49:09.149  INFO --- [   asgi_gw_1] localstack.request.aws     : AWS dynamodb.DescribeTable => 200
2022-09-22T01:49:09.711  INFO --- [   asgi_gw_0] localstack.request.aws     : AWS dynamodb.DescribeContinuousBackups => 400 (UnknownOperationException)
2022-09-22T01:49:10.034  INFO --- [   asgi_gw_1] localstack.request.aws     : AWS dynamodb.DescribeTimeToLive => 200
2022-09-22T01:49:10.350  INFO --- [   asgi_gw_0] localstack.request.aws     : AWS dynamodb.ListTagsOfResource => 200
2022-09-22T01:49:17.444  INFO --- [   asgi_gw_0] localstack.request.aws     : AWS dynamodb.ListTables => 200

How are you starting LocalStack?

Custom (please describe below)

Steps To Reproduce

- localstack start
- terraform plan -auto-approve
- awslocal dynamodb list-tables

results in:

{
    "TableNames": [ ]
}

Environment

- OS: win10
- LocalStack: LocalStack CLI 1.1.0, LocalStack version: 1.1.1.dev

Anything else?

it works under linux, but not under win10

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[ChandanChainani]

@futugyou Please can you attach the steps with terraform template that can be followed to generate the error

[futugyou]

@ChandanChainani this is the whole tf file.

terraform {
  backend "local" {}
}

provider "aws" {
  region                      = "ap-southeast-1"
  access_key                  = "test"
  secret_key                  = "test"
  skip_credentials_validation = true
  skip_metadata_api_check     = true

  endpoints {
    acm                      = "http://localhost:4566"
    amplify                  = "http://localhost:4566"
    apigateway               = "http://localhost:4566"
    apigatewayv2             = "http://localhost:4566"
    appconfig                = "http://localhost:4566"
    applicationautoscaling   = "http://localhost:4566"
    appsync                  = "http://localhost:4566"
    athena                   = "http://localhost:4566"
    autoscaling              = "http://localhost:4566"
    backup                   = "http://localhost:4566"
    batch                    = "http://localhost:4566"
    cloudformation           = "http://localhost:4566"
    cloudfront               = "http://localhost:4566"
    cloudsearch              = "http://localhost:4566"
    cloudtrail               = "http://localhost:4566"
    cloudwatch               = "http://localhost:4566"
    cloudwatchlogs           = "http://localhost:4566"
    codecommit               = "http://localhost:4566"
    cognitoidentity          = "http://localhost:4566"
    cognitoidp               = "http://localhost:4566"
    config                   = "http://localhost:4566"
    configservice            = "http://localhost:4566"
    costexplorer             = "http://localhost:4566"
    docdb                    = "http://localhost:4566"
    dynamodb                 = "http://localhost:4566"
    dynamodbstreams          = "http://localhost:4566"
    ec2                      = "http://localhost:4566"
    ecr                      = "http://localhost:4566"
    ecs                      = "http://localhost:4566"
    efs                      = "http://localhost:4566"
    eks                      = "http://localhost:4566"
    elasticache              = "http://localhost:4566"
    elasticbeanstalk         = "http://localhost:4566"
    elasticsearch            = "http://localhost:4566"
    elb                      = "http://localhost:4566"
    elbv2                    = "http://localhost:4566"
    emr                      = "http://localhost:4566"
    es                       = "http://localhost:4566"
    events                   = "http://localhost:4566"
    firehose                 = "http://localhost:4566"
    fis                      = "http://localhost:4566"
    glacier                  = "http://localhost:4566"
    glue                     = "http://localhost:4566"
    iam                      = "http://localhost:4566"
    iot                      = "http://localhost:4566"
    iotanalytics             = "http://localhost:4566"
    iotevents                = "http://localhost:4566"
    ioteventsdata            = "http://localhost:4566"
    iotwireless              = "http://localhost:4566"
    kafka                    = "http://localhost:4566"
    kinesis                  = "http://localhost:4566"
    kinesisanalytics         = "http://localhost:4566"
    kinesisanalyticsv2       = "http://localhost:4566"
    kms                      = "http://localhost:4566"
    lakeformation            = "http://localhost:4566"
    lambda                   = "http://localhost:4566"
    mediaconvert             = "http://localhost:4566"
    mediastore               = "http://localhost:4566"
    mediastoredata           = "http://localhost:4566"
    mwaa                     = "http://mwaa.localhost.localstack.cloud:4566"
    neptune                  = "http://localhost:4566"
    organizations            = "http://localhost:4566"
    qldb                     = "http://localhost:4566"
    qldbsession              = "http://localhost:4566"
    rds                      = "http://localhost:4566"
    rdsdata                  = "http://localhost:4566"
    redshift                 = "http://localhost:4566"
    redshiftdata             = "http://localhost:4566"
    resourcegroups           = "http://localhost:4566"
    resourcegroupstaggingapi = "http://localhost:4566"
    route53                  = "http://localhost:4566"
    route53resolver          = "http://localhost:4566"
    s3                       = "http://s3.localhost.localstack.cloud:4566"
    s3control                = "http://localhost:4566"
    sagemaker                = "http://localhost:4566"
    sagemakerruntime         = "http://localhost:4566"
    secretsmanager           = "http://localhost:4566"
    serverlessrepo           = "http://localhost:4566"
    servicediscovery         = "http://localhost:4566"
    ses                      = "http://localhost:4566"
    sesv2                    = "http://localhost:4566"
    sns                      = "http://localhost:4566"
    sqs                      = "http://localhost:4566"
    ssm                      = "http://localhost:4566"
    stepfunctions            = "http://localhost:4566"
    sts                      = "http://localhost:4566"
    support                  = "http://localhost:4566"
    swf                      = "http://localhost:4566"
    timestreamquery          = "http://localhost:4566"
    timestreamwrite          = "http://localhost:4566"
    transcribe               = "http://localhost:4566"
    transfer                 = "http://localhost:4566"
    waf                      = "http://localhost:4566"
    wafv2                    = "http://localhost:4566"
    xray                     = "http://localhost:4566"
  }
}


resource "aws_dynamodb_table" "terraform_locks" {
  name         = "terraform_locks_s"
  billing_mode = "PAY_PER_REQUEST"
  hash_key     = "LockID"

  attribute {
    name = "LockID"
    type = "S"
  }
}

[ChandanChainani]

Currently localstack uses DynamoDBLocal confirmed here which is a stripped down local version of dynamo db developed to test dependent functionally locally. The stripped down version has limited APIs which does not include DescribeContinuousBackups API.

Followed below steps to verify DescribeContinuousBackups in DynamoDBLocal

1. Started DynamoLocal
   java -Djava.library.path=./DynamoDBLocal_lib -jar DynamoDBLocal.jar -sharedDb

2. Create sample table
   aws --endpoint-url http://localhost:8000 dynamodb create-table \
    --table-name Music \
    --attribute-definitions \
        AttributeName=Artist,AttributeType=S \
        AttributeName=SongTitle,AttributeType=S \
    --key-schema \
        AttributeName=Artist,KeyType=HASH \
        AttributeName=SongTitle,KeyType=RANGE \
    --provisioned-throughput \
        ReadCapacityUnits=5,WriteCapacityUnits=5 \
    --table-class STANDARD

3. Verified table created
   aws --endpoint-url http://localhost:8000 dynamodb describe-table --table-name Music

4. Checked describe-continuous-backups API
   aws --endpoint-url http://localhost:8000 dynamodb describe-continuous-backups --table-name Music
   Output:
   An error occurred (UnknownOperationException) when calling the DescribeContinuousBackups operation: An unknown operation was requested.

Suggestion to implement the feature

• Use moto which is used for developing some other services
  OR
• Create a wrapper around DynamoDBLocal to develop missing features
  OR
• Write dynamodb support from scratch

[giograno]

Hi @futugyou, thanks for reporting this issue. As suggested by @ChandanChainani, I can confirm that we do not currently support DescribeContinuousBackups. However, I successfully deployed your Terraform script and listed the table by running the following commands:

$ tflocal init; tflocal plan; tflocal apply;
$ awslocal dynamodb list-tables --region ap-southeast-1

Please make sure that your Terraform script and your CLI refer to the same region.

If you need it, please open a feature request for DescribeContinuousBackups and we will try to plan its implementation.