Azure Service Bus
Enterprise messaging with queues and pub/sub topics.
When to Use
- Reliable message delivery
- Pub/sub messaging patterns
- Message ordering requirements
- Dead-letter handling
- Transaction support
- Enterprise integration
Required Supporting Resources
| Resource | Purpose |
|---|---|
| None required | Service Bus is self-contained |
| Key Vault | Store connection strings (legacy) |
SKU Selection
| SKU | Features | Use Case |
|---|---|---|
| Basic | Queues only, 256KB messages | Simple messaging |
| Standard | Topics, 256KB messages | Pub/sub patterns |
| Premium | 100MB messages, VNET, zones | Enterprise, high throughput |
Environment Variables
Managed Identity (Recommended)
| Variable | Value |
|---|---|
SERVICEBUS__fullyQualifiedNamespace | <namespace>.servicebus.windows.net |
SERVICEBUS_NAMESPACE | Namespace name (for SDK) |
SERVICEBUS_QUEUE | Queue name |
Required RBAC roles:
Azure Service Bus Data Sender(69a216fc-b8fb-44d8-bc22-1f3c2cd27a39) - for sendingAzure Service Bus Data Receiver(4f6d3b9b-027b-4f4c-9142-0e5a2a2247e0) - for receiving
Connection String (Legacy)
| Variable | Value |
|---|---|
SERVICEBUS_CONNECTION_STRING | Connection string (Key Vault) |
SERVICEBUS_NAMESPACE | Namespace name |
SERVICEBUS_QUEUE | Queue name |