ministackorg/ministack v1.2.6

on GitHub

What's Changed

New Contributors

• @AdigaAkhil made their first contribution in #271

[1.2.6] — 2026-04-12

Fixed

• EFS timestamp format — CreationTime now returns integer epoch seconds instead of ISO string, fixing Java SDK v2 unmarshalling errors.
• ECS timestamps — createdAt and other timestamp fields now return integer epoch seconds instead of floats with sub-second precision.
• DynamoDB X-Amz-Crc32 header — all DynamoDB responses now include the CRC32 checksum header, fixing Go SDK v2 failed to close HTTP response body warnings.
• EC2 DescribeInternetGateways not-found — returns InvalidInternetGatewayID.NotFound for nonexistent IDs.
• EC2 CreateVpc CIDR validation — rejects invalid CIDR blocks with InvalidParameterValue.
• EC2 duplicate security group rule — AuthorizeSecurityGroupIngress returns InvalidPermission.Duplicate for existing rules.
• EC2 CreateVolume/CreateSnapshot TagSpecifications — tags specified in TagSpecifications are now persisted.
• ElastiCache CreateCacheSubnetGroup — DescribeCacheSubnetGroups now returns the Subnets list with subnet identifiers and availability zones.
• SNS error code — GetTopicAttributes, Publish, and other operations on nonexistent topics now return NotFound instead of NotFoundException, matching real AWS.
• LocalStack init script path compatibility — now supports /etc/localstack/init/ready.d/ in addition to /docker-entrypoint-initaws.d/ready.d/ for drop-in LocalStack replacement. Contributed by @AdigaAkhil (#271)
• CloudWatch error response protocol mismatch — error responses now match the request protocol (JSON errors for JSON requests, CBOR errors for CBOR requests). Previously, JSON-protocol requests received CBOR-encoded errors causing boto3 UnicodeDecodeError.
• AppSync apiId length — CreateGraphQLApi now generates 26-character alphanumeric IDs matching real AWS format. Previously 8 characters, which broke boto3 ARN validation for tag operations.
• EC2 CreateTags persistence — tags applied via CreateTags now appear in DescribeVpcs, DescribeSubnets, DescribeSecurityGroups, and DescribeInternetGateways. Previously returned empty <tagSet/>.
• EC2 RunInstances TagSpecifications — tags specified in TagSpecifications with ResourceType=instance are now persisted and returned in DescribeInstances.
• EC2 Describe not-found errors — DescribeVpcs, DescribeSubnets, DescribeSecurityGroups, DescribeKeyPairs, DescribeInstances, DescribeVolumes, DescribeSnapshots now return proper AWS error codes (InvalidVpcID.NotFound, etc.) when specific IDs are requested but don't exist.
• EFS not-found errors — DescribeFileSystems and DescribeMountTargets now return FileSystemNotFound / MountTargetNotFound for nonexistent IDs.
• ELBv2 not-found errors — DescribeLoadBalancers, DescribeTargetGroups return proper errors for nonexistent ARNs/names. DeleteListener, DeleteTargetGroup return errors for nonexistent ARNs.
• ElastiCache not-found errors — DescribeCacheSubnetGroups, DeleteCacheSubnetGroup, DescribeCacheParameterGroups, DeleteCacheParameterGroup now return proper CacheSubnetGroupNotFoundFault / CacheParameterGroupNotFound errors.
• Glue validation — CreateTable rejects nonexistent database, CreateCrawler rejects duplicate names, DeleteTable / DeleteConnection return EntityNotFoundException for nonexistent resources.
• CloudFront CallerReference idempotency — CreateDistribution with a duplicate CallerReference returns the existing distribution instead of creating a duplicate.
• WAFv2 LockToken enforcement — UpdateWebACL validates LockToken and returns WAFOptimisticLockException for stale tokens.
• WAFv2 duplicate name — CreateWebACL rejects duplicate names within the same scope with WAFDuplicateItemException.
• ServiceDiscovery duplicate namespace — CreateHttpNamespace rejects duplicate names with NamespaceAlreadyExists.
• AutoScaling DescribePolicies — response now includes AdjustmentType, ScalingAdjustment, and Cooldown fields.
• ECS TagResource validation — rejects nonexistent resource ARNs with InvalidParameterException.
• EC2 DescribeVpcs filters — filters parameter (owner-id, vpc-id, cidr, state, is-default, tag:*) now applied correctly. Previously silently ignored.