Messaging & Pub/Sub across clouds

Message queues and pub/sub topics (SNS, SQS, Pub/Sub) for decoupled, event-driven systems, as verified modules.

22 verified modules, 11 of them live-tested apply→verify→destroy; the rest are static-validated, live-test pending.

Compare by provider

Provider	Module	Verification
Alibaba Cloud	An MNS Queue with a Dead-Letter Queue, Logging On and Your Key	static-validated
AWS	A Broker whose Maintenance Is Not an Outage	static-validated
AWS	A Delivery Stream whose Errors Are Separable	static-validated
AWS	EventBridge Bus, Rule & Target	✓ live-tested
AWS	Kinesis Data Stream (on-demand)	✓ live-tested
AWS	MSK Serverless (Apache Kafka)	✓ live-tested
AWS	SNS Topic with Subscriptions	✓ live-tested
AWS	SQS Queue with DLQ	✓ live-tested
AWS	Schedules with a Scoped Role, a Retry Ceiling and a Dead-Letter Queue	static-validated
Azure	Event Grid Topic & Subscriptions	✓ live-tested
Azure	Event Hubs Namespace & Hubs	✓ live-tested
Azure	Service Bus Namespace, Queues & Topics	✓ live-tested
Google Cloud	Cloud Tasks Queue	✓ live-tested
Google Cloud	Eventarc Pub/Sub Trigger	✓ live-tested
Google Cloud	Pub/Sub Topics & Subscriptions	✓ live-tested
Huawei Cloud	A Kafka Cluster Where a Misspelled Topic Fails Instead of Being Created	static-validated
IBM Cloud	Event Streams on the Standard Plan with Private Endpoints and Topics with Retention	static-validated
Oracle Cloud	A Queue with a Dead-Letter Queue and a Week of Retention	static-validated
Oracle Cloud	A Stream Pool Reached Privately, with Streams that Keep Enough	static-validated
Oracle Cloud	Event Rules that Match Something Specific and Act	static-validated
Scaleway	An SQS Queue with a Dead-Letter Queue, Long Polling, and a Publish-Only Credential	static-validated
Tencent Cloud	A Pulsar Cluster Where TTL and Retention Are Told Apart	static-validated

How to choose

Use a queue (SQS-style) for work distribution with at-least-once delivery; use pub/sub for fan-out to many subscribers.

When not to use

For synchronous request/response, call the service directly - a queue adds latency and complexity you do not want there.

Other solutions

Managed Relational Database25 Secrets & Key Management23 DNS & Traffic Management23 Load Balancer21 Virtual Machines21 Virtual Private Cloud (VPC)19 Cloud Firewall17 Managed Kubernetes16 Object Storage16 Block Storage16 Golden Images14 Container Registry12 Identity & Access12 In-Memory Cache12 Shared File Storage11 Managed NoSQL Database11 Serverless Functions10 CDN & Edge Delivery10 WAF & Edge Security10 NAT Gateway10 Serverless Containers9 Monitoring & Observability9 Managed Search9 Static Site Hosting9 Managed TLS Certificates9 Network Peering9 Audit Log Retention9 Cloud Data Warehouse9 API Gateway8 Site-to-Site VPN8 Dedicated Interconnect8 Backup Service8 Managed CI/CD8 Transit Hub8 Managed Spark8 Network Flow Logs8 Security Posture & Findings7 Database Migration & CDC7 Managed Network Firewall7 Private Instance Access7 Organisation Guardrails7 Private Service Endpoints7 Private Certificate Authority6 Managed ML Platform6 Transactional Email6 Managed App Platform6 Customer Identity6 Uptime Checks6 Landing Zone6 Budgets & Cost Alerts5 Patch Management5 Managed ETL Pipelines4 Workflow Orchestration4 HPC Parallel File Systems4 Managed BI4 Data Transfer Service3 Managed Active Directory3 Zero Trust Application Access3 Sensitive Data Discovery3