winterbaume-dax

DAX service implementation for winterbaume.

Coverage

Metric	Value
Service	DAX
AWS model	dax
Protocol	awsJson1.1
winterbaume coverage	6/21 operations (28.6%)
stubs (routed, returns empty/default)	0/21 operations (0.0%)
moto coverage	8/21 operations (38.1%)
floci coverage	0/21 operations (0.0%)
kumo coverage	0/21 operations (0.0%)
Coverage report date	2026-05-13

Server-mode usage

Start winterbaume-server and point the AWS CLI at it:

cargo run -p winterbaume-server -- --host 127.0.0.1 --port 5555

export AWS_ENDPOINT_URL=http://localhost:5555
aws dax describe-clusters

Current Network Resource Stub Semantics

DAX currently has partial placeholders for subnet groups and security groups.

• Subnet group shapes and views include subnet IDs and an optional VPC ID, but CreateSubnetGroup, DescribeSubnetGroups, UpdateSubnetGroup, and DeleteSubnetGroup return 501 NotImplemented.
• CreateCluster returns local cluster data using the requested subnet group name when present, but the mocked response falls back to default networking such as default subnet group and a fixed sg-00000001 style security group.
• Cluster state is not tied to EC2 subnet membership or security group existence.
• The implementation does not consult winterbaume-ec2 state for these identifiers, so it does not check that referenced VPCs, subnets, security groups, VPC endpoints, network interfaces, or load balancers exist, belong to the same VPC, or are in a usable lifecycle state.

Example

use aws_sdk_dax::config::BehaviorVersion;
use winterbaume_core::MockAws;
use winterbaume_dax::DaxService;

#[tokio::main]
async fn main() {
    let mock = MockAws::builder().with_service(DaxService::new()).build();

    let config = aws_config::defaults(BehaviorVersion::latest())
        .http_client(mock.http_client())
        .credentials_provider(mock.credentials_provider())
        .region(aws_sdk_dax::config::Region::new("us-east-1"))
        .load()
        .await;

    let client = aws_sdk_dax::Client::new(&config);

    let resp = client
        .describe_clusters()
        .send()
        .await
        .expect("describe_clusters should succeed");
    println!("DAX clusters: {}", resp.clusters().len());
}

Implemented APIs (6)

• CreateCluster
• DecreaseReplicationFactor
• DeleteCluster
• DescribeClusters
• IncreaseReplicationFactor
• ListTags

Not yet implemented APIs (15)

• CreateParameterGroup
• CreateSubnetGroup
• DeleteParameterGroup
• DeleteSubnetGroup
• DescribeDefaultParameters
• DescribeEvents
• DescribeParameterGroups
• DescribeParameters
• DescribeSubnetGroups
• RebootNode
• TagResource (implemented by moto)
• UntagResource (implemented by moto)
• UpdateCluster
• UpdateParameterGroup
• UpdateSubnetGroup