azure-iot-hub

Expert knowledge for Azure IoT Hub development including troubleshooting, best practices, decision making, architecture & design patterns, limits & …

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技能内容

Azure IoT Hub Skill

This skill provides expert guidance for Azure IoT Hub. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.

How to Use This Skill

> IMPORTANT for Agent: Use the Category Index below to locate relevant sections. For categories with line ranges (e.g., L35-L120), use read_file with the specified lines. For categories with file links (e.g., [security.md](security.md)), use read_file on the linked reference file

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Category Index

| Category | Lines | Description |

|----------|-------|-------------|

| Troubleshooting | L37-L53 | Diagnosing and fixing IoT Hub/DPS connectivity, routing, proxy, and storage issues; interpreting error codes and collecting/using Device Update and device diagnostic logs. |

| Best Practices | L54-L61 | Best practices for secure, scalable IoT Hub/DPS deployments: device provisioning at scale, OEM security, cert renewal/ADR, resilient reconnection, auto device config, and IoT Hub hardening. |

| Decision Making | L62-L74 | Guidance for choosing IoT Hub vs alternatives, DR usage, routing options, C2D/D2C patterns, pricing and tiers, and methods for monitoring device connections. |

| Architecture & Design Patterns | L75-L81 | Design patterns for DPS lifecycle/HA/DR, VNet connectivity, secure device streams, and reliably persisting ordered IoT Hub events with Cosmos DB. |

| Limits & Quotas | L82-L88 | Limits, quotas, and throttling for IoT Hub, Device Provisioning Service, and Device Update, including per‑service caps, scaling behavior, and what happens when limits are exceeded. |

| Security | L89-L127 | Securing IoT Hub, DPS, and Device Update: auth (Entra ID, RBAC, SAS, X.509), certificates/keys, TLS/ciphers, network isolation (IP filters, private endpoints, VNet), and policy/compliance best practices. |

| Configuration | L128-L160 | Configuring IoT Hub and DPS behavior: device/module twins, jobs, messaging, routing, enrichments, protocols, IPs/endpoints, Device Update manifests, file upload, and monitoring settings. |

| Integrations & Coding Patterns | L161-L185 | Patterns and code samples for connecting devices/DPUs to IoT Hub/DPS (MQTT/HTTPS/AMQP), managing identities, twins, methods, jobs, file upload, and message formats/endpoints. |

| Deployment | L186-L200 | Deploying and updating IoT devices and IoT Hub: Device Update setup/agents, delta/image/package updates, failover, platform support, migrations, and job scheduling. |

Troubleshooting

| Topic | URL |

|-------|-----|

| Diagnose and fix common Azure DPS provisioning errors | https://learn.microsoft.com/en-us/azure/iot-dps/how-to-troubleshoot-dps |

| Reference monitoring data for Azure IoT DPS | https://learn.microsoft.com/en-us/azure/iot-dps/monitor-iot-dps-reference |

| Use Agent Check to diagnose missing Device Update devices | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-agent-check |

| Use Device Update diagnostics, error codes, and logs | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-diagnostics |

| Interpret Device Update for IoT Hub error codes | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-error-codes |

| Collect and review Device Update diagnostic logs remotely | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-log-collection |

| Resolve proxy update import errors in Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-proxy-update-troubleshooting |

| Diagnose and fix common Device Update issues | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/troubleshoot-device-update |

| Fix storage permission errors when importing Device Updates | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/troubleshoot-storage |

| Collect device debug logs using IoT SDKs | https://learn.microsoft.com/en-us/azure/iot-hub/how-to-collect-device-logs |

| Diagnose and fix Azure IoT Hub device connectivity | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-troubleshoot-connectivity |

| Resolve Azure IoT Hub error codes | https://learn.microsoft.com/en-us/azure/iot-hub/troubleshoot-error-codes |

| Troubleshoot Azure IoT Hub message routing issues | https://learn.microsoft.com/en-us/azure/iot-hub/troubleshoot-message-routing |

Best Practices

| Topic | URL |

|-------|-----|

| Apply DPS best practices for large-scale IoT deployments | https://learn.microsoft.com/en-us/azure/iot-dps/concepts-deploy-at-scale |

| Implement OEM security practices for DPS-enabled devices | https://learn.microsoft.com/en-us/azure/iot-dps/concepts-device-oem-security-practices |

| Design resilient Azure IoT Hub device reconnection | https://learn.microsoft.com/en-us/azure/iot-hub/concepts-manage-device-reconnections |

| Apply IoT Hub automatic device configuration best practices | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-configuration-best-practices |

Decision Making

| Topic | URL |

|-------|-----|

| Decide when to disable IoT Hub disaster recovery | https://learn.microsoft.com/en-us/azure/iot-hub/how-to-disable-dr |

| Decide between Azure IoT Hub and Event Hubs | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-compare-event-hubs |

| Choose IoT Hub cloud-to-device communication option | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-c2d-guidance |

| Choose IoT Hub device-to-cloud communication option | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-d2c-guidance |

| Understand Azure IoT Hub pricing and metering | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-pricing |

| Decide between IoT Hub routing and Event Grid | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-event-grid-routing-comparison |

| Select the right Azure IoT Hub tier and scale | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-scaling |

| Select and upgrade Azure IoT Hub tier and size | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-upgrade |

| Choose IoT Hub device connection monitoring method | https://learn.microsoft.com/en-us/azure/iot-hub/monitor-device-connection-state |

Architecture & Design Patterns

| Topic | URL |

|-------|-----|

| Plan DPS device lifecycle and reprovisioning policies | https://learn.microsoft.com/en-us/azure/iot-dps/concepts-device-reprovision |

| Design DPS high availability and disaster recovery | https://learn.microsoft.com/en-us/azure/iot-dps/iot-dps-ha-dr |

| Use virtual network connectivity patterns with DPS | https://learn.microsoft.com/en-us/azure/iot-dps/virtual-network-support |

Limits & Quotas

| Topic | URL |

|-------|-----|

| Azure IoT DPS FAQs on limits and behavior | https://learn.microsoft.com/en-us/azure/iot-dps/dps-faq |

| Review Azure Device Update service limits | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-limits |

| Azure IoT Hub quotas, limits, and throttling behavior | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-quotas-throttling |

Security

| Topic | URL |

|-------|-----|

| Configure Entra ID and RBAC for IoT DPS access | https://learn.microsoft.com/en-us/azure/iot-dps/concepts-control-access-dps-azure-ad |

| Configure DPS access control with SAS tokens | https://learn.microsoft.com/en-us/azure/iot-dps/how-to-control-access |

| Revoke or disenroll device access in DPS securely | https://learn.microsoft.com/en-us/azure/iot-dps/how-to-revoke-device-access-portal |

| Roll and update X.509 certificates in DPS | https://learn.microsoft.com/en-us/azure/iot-dps/how-to-roll-certificates |

| Deprovision DPS devices and revoke IoT Hub access | https://learn.microsoft.com/en-us/azure/iot-dps/how-to-unprovision-devices |

| Verify X.509 CA certificates with DPS proof-of-possession | https://learn.microsoft.com/en-us/azure/iot-dps/how-to-verify-certificates |

| Configure IP filtering rules for Azure IoT DPS | https://learn.microsoft.com/en-us/azure/iot-dps/iot-dps-ip-filtering |

| Manage public network access and private endpoints for DPS | https://learn.microsoft.com/en-us/azure/iot-dps/public-network-access |

| Configure TLS versions and ciphers for DPS connections | https://learn.microsoft.com/en-us/azure/iot-dps/tls-support |

| Assign RBAC roles for Device Update and IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/configure-access-control-device-update |

| Set up private endpoints for Device Update accounts | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/configure-private-endpoints |

| Configure RBAC and Entra auth for Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-control-access |

| Configure data encryption and CMKs for Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-data-encryption |

| Configure network ports for Device Update traffic | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-networking |

| Manage root key rotation for Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-rootkey |

| Understand end-to-end security in Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-security |

| Configure TLS download security for Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-tls-download |

| Configure network security and private access for Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/network-security |

| Configure Microsoft Entra ID and RBAC for Azure IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/authenticate-authorize-azure-ad |

| Control IoT Hub access with SAS tokens | https://learn.microsoft.com/en-us/azure/iot-hub/authenticate-authorize-sas |

| Authenticate IoT Hub devices with X.509 certificates | https://learn.microsoft.com/en-us/azure/iot-hub/authenticate-authorize-x509 |

| Manage IoT Hub device identities and connection strings | https://learn.microsoft.com/en-us/azure/iot-hub/create-connect-device |

| Use Azure IoT Hub identity registry for device management | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-identity-registry |

| Configure IP filtering rules for Azure IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-ip-filtering |

| Use managed identities with Azure IoT Hub egress | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-managed-identity |

| Manage public network access for Azure IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-public-network-access |

| Restrict IoT Hub outbound network access for DLP | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-restrict-outbound-network-access |

| Configure TLS versions and cipher suites for Azure IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-tls-support |

| Migrate IoT Hub TLS root certificate to DigiCert G2 | https://learn.microsoft.com/en-us/azure/iot-hub/migrate-tls-certificate |

| Built-in Azure Policy definitions for IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/policy-reference |

| Regenerate IoT Hub shared access keys safely | https://learn.microsoft.com/en-us/azure/iot-hub/regenerate-keys |

| Apply security best practices to Azure IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/secure-azure-iot-hub |

| Azure Policy compliance controls for IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/security-controls-policy |

| Create and upload X.509 test certificates for IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/tutorial-x509-test-certs |

| Use virtual network and Private Link connectivity with Azure IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/virtual-network-support |

Configuration

| Topic | URL |

|-------|-----|

| Manage DPS device enrollments in Azure portal | https://learn.microsoft.com/en-us/azure/iot-dps/how-to-manage-enrollments |

| Configure DPS allocation policies across IoT hubs | https://learn.microsoft.com/en-us/azure/iot-dps/how-to-use-allocation-policies |

| Query and manage DPS instance IP address properties | https://learn.microsoft.com/en-us/azure/iot-dps/iot-dps-understand-ip-address |

| Create apt manifests for package-based Device Updates | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-apt-manifest |

| Configure adu-config.json for Device Update agent | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-configuration-file |

| Configure multistep execution in Device Update manifests | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-multi-step-updates |

| Author JSON import manifests for Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/import-schema |

| Configure related files in Device Update import manifests | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/related-files |

| Define update manifest payloads for Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/update-manifest |

| Configure IoT Hub file upload to Azure Storage | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-configure-file-upload |

| Handle customer data requests for IoT Hub devices | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-customer-data-requests |

| Understand and configure Azure IoT Hub device twins | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-device-twins |

| Configure and use IoT Hub direct methods | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-direct-methods |

| Use IoT Hub file upload for large device data | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-file-upload |

| Configure and manage Azure IoT Hub jobs for device fleets | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-jobs |

| Configure cloud-to-device messaging in IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-messages-c2d |

| Define and use Azure IoT Hub message format | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-messages-construct |

| Configure IoT Hub device-to-cloud message routing | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-messages-d2c |

| Understand and configure Azure IoT Hub module twins | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-module-twins |

| Configure IoT Hub communication protocols and ports | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-protocols |

| Use IoT Hub message routing query language | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-routing-query-syntax |

| Configure message enrichments in Azure IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-message-enrichments-overview |

| Non-telemetry event schemas for Azure IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-non-telemetry-event-schema |

| Configure IoT Hub private endpoints for TLS 1.3 hostnames | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-tls-1-3-update-private-endpoint |

| Understand and manage Azure IoT Hub IP addresses | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-understand-ip-address |

| Manage IoT Hub device and module twins via portal and CLI | https://learn.microsoft.com/en-us/azure/iot-hub/manage-device-twins |

| Reference metrics and logs for monitoring Azure IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/monitor-iot-hub-reference |

| Use the Azure IoT Hub VS Code extension | https://learn.microsoft.com/en-us/azure/iot-hub/reference-iot-hub-extension |

| Set up and use IoT Hub message enrichments | https://learn.microsoft.com/en-us/azure/iot-hub/tutorial-message-enrichments |

Integrations & Coding Patterns

| Topic | URL |

|-------|-----|

| Send additional payload data between devices and DPS | https://learn.microsoft.com/en-us/azure/iot-dps/how-to-send-additional-data |

| Use raw HTTPS with DPS symmetric key provisioning | https://learn.microsoft.com/en-us/azure/iot-dps/iot-dps-https-sym-key-support |

| Use raw HTTPS with DPS X.509 certificate provisioning | https://learn.microsoft.com/en-us/azure/iot-dps/iot-dps-https-x509-support |

| Connect devices to Azure IoT DPS over MQTT | https://learn.microsoft.com/en-us/azure/iot-dps/iot-mqtt-connect-to-iot-dps |

| Programmatically create DPS TPM individual enrollments | https://learn.microsoft.com/en-us/azure/iot-dps/quick-enroll-device-tpm |

| Programmatically create DPS X.509 enrollment groups | https://learn.microsoft.com/en-us/azure/iot-dps/quick-enroll-device-x509 |

| Implement Device Update component enumerator via proxy | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/components-enumerator |

| Use Device Update agent status API on devices | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-agent-status |

| Send and receive IoT Hub cloud-to-device messages with SDKs | https://learn.microsoft.com/en-us/azure/iot-hub/how-to-cloud-to-device-messaging |

| Implement device management actions using IoT Hub direct methods | https://learn.microsoft.com/en-us/azure/iot-hub/how-to-device-management |

| Use IoT Hub device and service SDKs with device twins | https://learn.microsoft.com/en-us/azure/iot-hub/how-to-device-twins |

| Upload device files to cloud using IoT Hub SDKs | https://learn.microsoft.com/en-us/azure/iot-hub/how-to-file-upload |

| Use module identities and twins with IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub/how-to-module-twins |

| Use IoT Hub service SDK to schedule broadcast jobs | https://learn.microsoft.com/en-us/azure/iot-hub/how-to-schedule-broadcast-jobs |

| Use AMQP protocol with Azure IoT Hub endpoints | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-amqp-support |

| Bulk import and export IoT Hub device identities | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-bulk-identity-mgmt |

| Read IoT Hub messages from built-in endpoint | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-messages-read-builtin |

| Connect devices to Azure IoT Hub using MQTT | https://learn.microsoft.com/en-us/azure/iot-hub/iot-mqtt-connect-to-iot-hub |

| Control IoT devices via direct methods using .NET samples | https://learn.microsoft.com/en-us/azure/iot-hub/quickstart-control-device |

| Use PowerShell script to self-sign IoT Hub CSR certificates | https://learn.microsoft.com/en-us/azure/iot-hub/reference-self-sign-script |

| Connect IoT devices to Azure IoT Hub via MQTT | https://learn.microsoft.com/en-us/azure/iot-hub/tutorial-use-mqtt |

Deployment

| Topic | URL |

|-------|-----|

| Generate and deploy delta updates with Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/deploy-delta-updates |

| Deploy device updates with Azure IoT Hub Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/deploy-update |

| Provision Device Update agent as IoT Edge module | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-agent-provisioning |

| Perform proxy updates with Device Update for IoT Hub | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-howto-proxy-updates |

| Deploy image-based Device Update on Raspberry Pi | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-raspberry-pi |

| Use regional failover mappings for Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-region-mapping |

| Deploy package-based Device Update with Ubuntu agent | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/device-update-ubuntu-agent |

| Check supported platforms for Device Update | https://learn.microsoft.com/en-us/azure/iot-hub-device-update/support |

| Deploy IoT Hub with Device Registry and X.509 | https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-device-registry-setup |

| Manually migrate Azure IoT Hub across regions or SKUs | https://learn.microsoft.com/en-us/azure/iot-hub/migrate-hub-arm |

| Migrate Azure IoT Hub using Azure CLI state commands | https://learn.microsoft.com/en-us/azure/iot-hub/migrate-hub-state-cli |

| Schedule IoT Hub jobs for device groups using Azure CLI | https://learn.microsoft.com/en-us/azure/iot-hub/schedule-jobs-cli |

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