winterbaume-autoscaling

Auto Scaling service implementation for winterbaume.

Coverage

Metric	Value
Service	Auto Scaling
AWS model	auto-scaling
Protocol	awsQuery
winterbaume coverage	52/66 operations (78.8%)
stubs (routed, returns empty/default)	0/66 operations (0.0%)
moto coverage	39/66 operations (59.1%)
floci coverage	0/66 operations (0.0%)
kumo coverage	0/66 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 autoscaling describe-auto-scaling-groups

Current Network Resource Stub Semantics

Auto Scaling stores network placement inputs as local scalar or list fields.

• Launch configurations keep security_groups exactly as supplied by the request.
• Auto Scaling groups keep vpc_zone_identifier as an optional raw string; update operations replace that string when supplied.
• The service does not split the VPC zone identifier into subnets for validation, availability zone inference, or attachment tracking.
• 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_autoscaling::config::BehaviorVersion;
use winterbaume_autoscaling::AutoScalingService;
use winterbaume_core::MockAws;

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

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

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

    // Create a launch configuration
    client
        .create_launch_configuration()
        .launch_configuration_name("example-lc")
        .image_id("ami-12345678")
        .instance_type("t2.micro")
        .send()
        .await
        .expect("create_launch_configuration should succeed");

    // Create an Auto Scaling group
    client
        .create_auto_scaling_group()
        .auto_scaling_group_name("example-asg")
        .launch_configuration_name("example-lc")
        .min_size(1)
        .max_size(3)
        .desired_capacity(1)
        .availability_zones("us-east-1a")
        .send()
        .await
        .expect("create_auto_scaling_group should succeed");

    // Describe the Auto Scaling group
    let resp = client
        .describe_auto_scaling_groups()
        .auto_scaling_group_names("example-asg")
        .send()
        .await
        .expect("describe_auto_scaling_groups should succeed");

    for group in resp.auto_scaling_groups() {
        println!(
            "ASG: {:?} (min={:?}, max={:?}, desired={:?})",
            group.auto_scaling_group_name(),
            group.min_size(),
            group.max_size(),
            group.desired_capacity(),
        );
    }
}

Implemented APIs (52)

• AttachInstances
• AttachLoadBalancerTargetGroups
• AttachLoadBalancers
• BatchDeleteScheduledAction
• BatchPutScheduledUpdateGroupAction
• CreateAutoScalingGroup
• CreateLaunchConfiguration
• CreateOrUpdateTags
• DeleteAutoScalingGroup
• DeleteLaunchConfiguration
• DeleteLifecycleHook
• DeleteNotificationConfiguration
• DeletePolicy
• DeleteScheduledAction
• DeleteTags
• DeleteWarmPool
• DescribeAccountLimits
• DescribeAdjustmentTypes
• DescribeAutoScalingGroups
• DescribeAutoScalingInstances
• DescribeAutoScalingNotificationTypes
• DescribeLaunchConfigurations
• DescribeLifecycleHooks
• DescribeLoadBalancerTargetGroups
• DescribeLoadBalancers
• DescribeMetricCollectionTypes
• DescribeNotificationConfigurations
• DescribePolicies
• DescribeScalingActivities
• DescribeScalingProcessTypes
• DescribeScheduledActions
• DescribeTags
• DescribeTerminationPolicyTypes
• DescribeWarmPool
• DetachInstances
• DetachLoadBalancerTargetGroups
• DetachLoadBalancers
• DisableMetricsCollection
• EnableMetricsCollection
• ExecutePolicy
• PutLifecycleHook
• PutNotificationConfiguration
• PutScalingPolicy
• PutScheduledUpdateGroupAction
• PutWarmPool
• ResumeProcesses
• SetDesiredCapacity
• SetInstanceHealth
• SetInstanceProtection
• SuspendProcesses
• TerminateInstanceInAutoScalingGroup
• UpdateAutoScalingGroup

Not yet implemented APIs (14)

• AttachTrafficSources
• CancelInstanceRefresh
• CompleteLifecycleAction
• DescribeInstanceRefreshes
• DescribeLifecycleHookTypes
• DescribeTrafficSources
• DetachTrafficSources
• EnterStandby
• ExitStandby
• GetPredictiveScalingForecast
• LaunchInstances
• RecordLifecycleActionHeartbeat
• RollbackInstanceRefresh
• StartInstanceRefresh