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Azure Key Vault Integration Guide
Integrate Azure Key Vault with enterprise workflows through versioned REST APIs, Microsoft Entra ID authentication, and selected Azure Event Grid notifications.
Azure Key Vault integration options at a glance
Azure Key Vault provides versioned REST APIs for managing Secrets, Keys, Certificates, deleted items, selected cryptographic operations, and management-plane resources through Azure Resource Manager. Microsoft Entra ID supplies OAuth 2.0 bearer-token authentication, with service principals and managed identities available for server-to-server access. Selected lifecycle and expiration events can be published through Azure Event Grid and delivered to a Martini API. Key Vault does not provide a general bulk CRUD, file, database, GraphQL, or SOAP interface, so Martini workflows should paginate list operations, process controlled batches, apply bounded retries, and keep sensitive values out of logs.
| Integration point | Supported by Azure Key Vault? | Common use cases | How Martini supports it |
|---|---|---|---|
| Versioned REST APIs | Yes | Manage Secrets, Keys, Certificates, deleted items, selected cryptographic operations, backups, restores, and vault data-plane resources. Azure Resource Manager APIs cover management-plane operations. | Martini can consume the Key Vault and Azure Resource Manager REST APIs, map responses, orchestrate calls, and expose controlled APIs for downstream systems. |
| Authentication | Yes | Authenticate with Microsoft Entra ID OAuth 2.0 bearer tokens using service principals, managed identities, or other supported Azure identities. | Martini can manage environment-specific authentication configuration, obtain or receive appropriately scoped tokens, and keep credentials outside workflow definitions. |
| Webhooks / outbound callbacks | Limited | Azure Event Grid publishes selected Key Vault lifecycle and expiration-related events, including selected Secret and Certificate notifications. | Martini can expose an API or webhook workflow to receive Event Grid deliveries, validate events, apply idempotency, and initiate downstream processing. |
| Bulk / async / batch APIs | Limited | Selected backup and restore operations and some long-running certificate operations are available, while list APIs use continuation tokens and there is no universal bulk CRUD API. | Martini can paginate, batch workflow-level processing, orchestrate long-running calls, and apply bounded retries for transient failures. |
| Microsoft SDKs and Azure tooling | Yes | Microsoft SDKs, Azure CLI, PowerShell, ARM templates, Bicep, and Terraform support application development and administration. | Martini can use REST directly and can invoke custom JVM-compatible logic when a specific SDK operation is more appropriate. |
| File / attachment APIs | No | Key Vault is not a general file or attachment repository; larger files should be stored in services such as Azure Blob Storage. | Martini can integrate Key Vault with a separate file or storage service, but it should not treat Key Vault as a file store. |
| Database / analytics access | No | Key Vault does not expose SQL or database access. Monitoring is provided through separate Azure Monitor and diagnostic integrations. | Martini can call supported monitoring or operational endpoints where available, but cannot use Key Vault as a database source. |
| GraphQL APIs | Not confirmed | No Azure Key Vault GraphQL API is identified in the supplied research. | Martini should use the documented REST APIs rather than assume GraphQL support. |
| SOAP APIs | No | Azure Key Vault's documented integration model is REST-based rather than SOAP-based. | Martini can consume the REST APIs and transform data for SOAP-based downstream systems if required. |
How Azure Key Vault exposes data and business events
Azure Key Vault REST APIs
Azure Key Vault exposes versioned data-plane REST APIs for Secrets, Keys, Certificates, deleted items, selected cryptographic operations, and backup or restore functions. Azure Resource Manager provides separate management-plane APIs for vault resources and configuration.
Martini implementation pattern
Martini implementation pattern: Martini authenticates with a Microsoft Entra ID bearer token, calls the appropriate data-plane or management-plane endpoint, validates the response, maps the result, and routes it through business rules without exposing sensitive values in logs.
Implementation sequence
Azure Event Grid notifications
Azure Key Vault can publish selected lifecycle and expiration-related events through Azure Event Grid, including selected Secret and Certificate near-expiry notifications and certificate version events. This is not a complete notification stream for every Key Vault operation.
Martini implementation pattern
Martini implementation pattern: expose a Martini API or webhook workflow for Event Grid delivery, complete the required validation and authentication handling, use durable event identifiers for idempotency, and initiate controlled follow-up processing.
Implementation sequence
Backup and restore operations
Key Vault provides selected backup and restore operations for supported object types, but it does not provide a general bulk CRUD API for all Secrets, Keys, and Certificates. Some certificate-management operations may also be long-running.
Martini implementation pattern
Martini implementation pattern: orchestrate the operation with explicit authorization, track asynchronous or multi-step state where applicable, handle throttling and transient failures, and record only non-sensitive operational metadata.
Implementation sequence
Common Azure Key Vault integration patterns
Pattern 1: Retrieve runtime credentials for an outbound workflow
When to use this pattern
Use this pattern when a Martini workflow must call another API or database with a credential stored in Azure Key Vault. It limits retrieval to a named or allowlisted Secret and avoids persisting the value beyond the execution context.
Integration direction
Example Mapping
| Azure Key Vault Field | Canonical Field | Target Field |
|---|---|---|
| Secret value | runtimeCredential | Authorization credential |
| Secret identifier | credentialReference | Connection configuration |
| Secret version | credentialVersion | Audit metadata |
Martini implementation pattern
Martini authenticates with Microsoft Entra ID, retrieves the current or explicitly requested Secret version, validates that the workflow is authorized to use it, and calls the target system. Errors are classified by authentication, permission, missing object, throttling, and transient service behavior; secret values are excluded from logs and exception messages.
Martini capabilities used
- Workflows
- API consumption
- Secrets management
- Data mapping
- Business rules
- Error handling
Pattern 2: Synchronize selected Secrets into a configuration system
When to use this pattern
Use this pattern when an approved set of Secret metadata or values must be synchronized to another configuration platform. It is appropriate for controlled replication, not indiscriminate copying of an entire vault.
Integration direction
Example Mapping
| Azure Key Vault Field | Canonical Field | Target Field |
|---|---|---|
| Secret name | configurationKey | Setting name |
| Secret value | configurationValue | Setting value |
| Secret version | sourceVersion | Configuration version |
| Enabled state | isActive | Setting status |
Martini implementation pattern
A scheduled Martini workflow lists the approved object types, follows continuation tokens, filters by an allowlist, retrieves only required values, and maps them to the target model. Version-aware upserts and durable source identifiers prevent stale retries from overwriting newer configuration.
Martini capabilities used
- Scheduler triggers
- Workflows
- Pagination orchestration
- Data mapping
- Business rules
- Idempotency
- Retry handling
Pattern 3: Process Key Vault near-expiry notifications
When to use this pattern
Use this pattern for selected Secret or Certificate lifecycle notifications delivered through Azure Event Grid. It is useful for operations alerting or initiating a controlled renewal process, but it should not be treated as a notification stream for every vault change.
Integration direction
Example Mapping
| Azure Key Vault Field | Canonical Field | Target Field |
|---|---|---|
| Event ID | eventId | Notification identifier |
| Object URI | vaultObjectUri | Affected resource |
| Event type | lifecycleEventType | Alert category |
| Object version | sourceVersion | Processing key |
Martini implementation pattern
Martini receives and validates the Event Grid delivery, derives a durable idempotency key, retrieves current Key Vault state when needed, and applies rules for near-expiry, certificate version, or unsupported event types. Duplicate deliveries are acknowledged safely, while transient downstream failures are retried.
Martini capabilities used
- API exposure
- Webhook consumption
- Event validation
- Business rules
- Idempotency
- Error handling
Pattern 4: Provision and govern vault configuration
When to use this pattern
Use this pattern when an organization needs to coordinate vault creation, tags, access settings, or related Azure resources with an infrastructure process. Management-plane authorization must remain separate from permission to read Secret values.
Integration direction
Example Mapping
| Azure Key Vault Field | Canonical Field | Target Field |
|---|---|---|
| Vault name | vaultIdentifier | Resource name |
| Resource group | resourceGroup | Azure resource group |
| Authorization model | authorizationMode | RBAC or access policy |
| Tags | resourceTags | Resource tags |
Martini implementation pattern
A Martini API or workflow validates the requested environment and policy, orchestrates Azure Resource Manager calls, applies approved governance rules, and reports status to the provisioning process. Management-plane failures, authorization failures, and data-plane access issues are handled as distinct outcomes.
Martini capabilities used
- API exposure
- Workflow orchestration
- REST API consumption
- Data mapping
- Policy validation
- Error handling
Applications commonly integrated with Azure Key Vault
Azure Key Vault commonly participates in identity-aware application configuration, deployment, infrastructure, and security-monitoring architectures. Martini can coordinate these systems through REST APIs, workflows, scheduled processing, and event-driven APIs without requiring a dedicated Key Vault connector.
| Application | Scenario | Direction | Martini Pattern |
|---|---|---|---|
| Azure App Service | Resolve application settings and connection strings from Key Vault without placing sensitive values directly in application configuration. | Azure Key Vault → Martini → Azure App Service | Martini can retrieve approved Secret metadata or values, apply environment-specific rules, and provision or coordinate application configuration while preventing secret values from entering logs. |
| Azure Kubernetes Service (AKS) | Provide workloads with controlled access to Secrets, Keys, and Certificates through Azure identity and the Secrets Store CSI Driver. | Azure Key Vault → Martini → Azure Kubernetes Service (AKS) | Martini can orchestrate vault configuration, identity permissions, and deployment-related workflows, while AKS workloads remain responsible for consuming mounted or retrieved material. |
| Azure DevOps | Keep pipeline secrets, certificates, and deployment credentials outside pipeline definitions. | Azure Key Vault → Martini → Azure DevOps | A Martini workflow can validate approved secret references, coordinate pipeline configuration, and respond to lifecycle events without copying unrestricted vault contents. |
| GitHub Actions | Supply deployment workflows with Azure credentials or application secrets without committing them to repositories. | Azure Key Vault → Martini → GitHub Actions | Martini can expose a controlled API or run an orchestration workflow that applies allowlists, identity checks, and environment-specific mappings before deployment automation consumes the result. |
| Terraform | Provision vaults, access assignments, Keys, and Secrets as part of infrastructure deployment. | Terraform → Martini → Azure Key Vault | Martini can coordinate Terraform-related provisioning stages with Key Vault management-plane operations, separating resource governance from data-plane access to secret values. |
| Microsoft Sentinel | Centralize Key Vault diagnostic events and security-relevant activity for monitoring and investigation. | Azure Key Vault → Martini → Microsoft Sentinel | Martini can receive or transform approved operational notifications and route them to monitoring workflows, while Azure Monitor and Log Analytics remain the primary diagnostic integration layer. |
| Azure Functions | Allow serverless functions to retrieve configuration and cryptographic material using managed identity. | Azure Key Vault → Martini → Azure Functions | Martini can coordinate secret lifecycle and function configuration workflows, using REST calls and business rules while preserving the separation between management-plane and data-plane permissions. |
| Azure Automation | Supply runbooks with controlled access to credentials, certificates, or Keys used in operational tasks. | Azure Key Vault → Martini → Azure Automation | A scheduled or API-triggered Martini workflow can validate the requested object, retrieve only permitted values, and invoke downstream operational processing with redacted observability. |
How to build a Azure Key Vault integration in Martini
Objective
Establish the Azure Key Vault endpoint, API version, tenant context, and authentication model appropriate to the Martini deployment.
Instructions in Martini
- Configure the vault name and environment-specific endpoint outside workflow logic
- Use Microsoft Entra OAuth 2.0 with a managed identity or service principal where appropriate
- Store credentials and token configuration in secure Martini environment settings or secrets management
- Grant the minimum required data-plane and management-plane permissions
Objective
Select the execution model that matches the integration requirement: on-demand credential retrieval, scheduled synchronization, provisioning orchestration, or selected Event Grid notification handling.
Instructions in Martini
- Use an API-triggered workflow for request-driven operations
- Use a scheduler for controlled synchronization and governance tasks
- Expose a Martini API for selected Event Grid deliveries
- Use allowlists and explicit object scopes for security-sensitive workflows
Objective
Call the correct versioned Key Vault data-plane or Azure Resource Manager endpoint and handle pagination, versions, and operation state.
Instructions in Martini
- Request Secrets, Keys, Certificates, or deleted items through their specific REST resources
- Follow continuation tokens for list operations
- Choose current or explicit object versions deliberately
- Distinguish management-plane calls from data-plane calls
- Avoid writing sensitive response values to logs
Objective
Coordinate API calls, validation, enrichment, target writes, and operational decisions in a maintainable Martini workflow.
Instructions in Martini
- Validate required identifiers and authorization context
- Retrieve current state when an event may be stale
- Apply business rules for rotation, recovery, purge, or provisioning
- Use reusable workflow logic for repeated Key Vault operations
- Keep secret values in memory where possible
Objective
Convert Key Vault responses and Event Grid envelopes into the target system's model while preserving identifiers and version information.
Instructions in Martini
- Map object names, URIs, versions, statuses, and event types explicitly
- Preserve source identifiers for reconciliation and idempotency
- Normalize timestamps and lifecycle states for downstream systems
- Reject incomplete or unexpected payloads before writing
Objective
Update the approved downstream application, configuration platform, monitoring process, or infrastructure workflow without broadening secret exposure.
Instructions in Martini
- Use version-aware upserts for synchronized configuration
- Send only the minimum required values to downstream systems
- Separate operational metadata from sensitive values
- Return controlled status responses from Martini APIs
- Treat destructive actions such as purge as separately authorized operations
Common Azure Key Vault data objects used in integrations
| Object | Typical Use | Common target systems | Martini handling |
|---|---|---|---|
| Vaults | Provide the security boundary, endpoint, configuration, and authorization context for Secrets, Keys, and Certificates. | Azure Resource Manager, Terraform, Azure App Service, AKS, Azure Functions | Martini distinguishes management-plane provisioning from data-plane access, applies environment-specific mappings, and orchestrates approved configuration changes. |
| Secrets | Store versioned sensitive values such as passwords, connection strings, API keys, and certificate-related values. | Azure App Service, Azure DevOps, GitHub Actions, Azure Functions, Azure Automation | Martini retrieves or updates only allowlisted Secrets, handles versions explicitly, and prevents values from appearing in logs, errors, or unnecessary payloads. |
| Keys | Support encryption, signing, verification, wrapping, unwrapping, import, rotation, and other cryptographic operations. | Applications, Azure Functions, AKS workloads, security and deployment workflows | Martini orchestrates supported Key Vault operations, applies permission checks and idempotency rules, and avoids treating cryptographic material as ordinary data. |
| Certificates | Manage X.509 certificate policies, issuance, renewal, versions, and associated secret material. | Azure App Service, AKS, Azure Functions, Azure DevOps | Martini can coordinate certificate lifecycle workflows, process selected Event Grid notifications, and distinguish near-expiry events from confirmed availability of a new certificate. |
| Deleted items | Represent soft-deleted Secrets, Keys, Certificates, and Vaults that may be recovered or purged subject to configuration and permissions. | Azure governance workflows, Terraform, Azure Resource Manager | Martini applies explicit recover and purge business rules, validates permissions, and treats destructive operations as separate controlled workflow paths. |
| Managed HSM keys | Provide cryptographic keys hosted by Azure Key Vault Managed HSM through a related but distinct service and endpoint model. | High-assurance cryptographic applications and Azure workloads | Martini should model Managed HSM as a separate endpoint and authorization integration rather than assuming identical Key Vault behavior. |
Authentication and security considerations
Microsoft Entra ID authentication
Azure Key Vault uses Microsoft Entra ID OAuth 2.0 bearer tokens. Martini can use a managed identity for eligible Azure-hosted deployments or a service principal with an appropriately scoped credential.
Separate authorization planes
Management-plane permissions for Azure resources are distinct from data-plane permissions for Secrets, Keys, and Certificates. Azure RBAC and vault access policies must grant only the operations required by each workflow.
Protect sensitive values
- Store credentials and environment configuration in Martini secrets-management facilities.
- Do not place Secret values in logs, exception messages, metrics, or unnecessary response payloads.
- Consider private endpoints, firewall settings, network reachability, and DNS resolution for self-managed or non-Azure Martini deployments.
Operational considerations for Azure Key Vault integrations
Throttling and retries
Key Vault applies service limits and may return HTTP 429 or transient 5xx responses. Use bounded retries with backoff and avoid unnecessary polling.
Pagination and versions
List operations may return continuation tokens, and Secrets, Keys, and Certificates are versioned. Workflows should process pages until completion and explicitly choose current or specific versions.
Idempotency and schema changes
Event Grid can retry deliveries. Use event IDs, object identifiers, or versions as durable idempotency keys. Validate versioned REST and event schemas while preserving unknown fields where practical.
Testing and observability
Test authentication, permission boundaries, disabled or expired objects, missing versions, throttling, duplicate events, and downstream failures. Monitor workflow outcomes without recording sensitive values.
Why use Martini instead of scripts or point-to-point integrations?
Orchestrate more than a single API call
Scripts often implement one retrieval or update path. Martini can coordinate authentication, pagination, validation, version selection, business rules, downstream writes, and operational responses in reusable workflows.
Keep integrations maintainable
Martini separates environment configuration from workflow logic and provides structured mapping, error handling, scheduling, API exposure, and monitoring patterns for enterprise integration teams.
Support controlled change
Instead of point-to-point logic, Martini can expose a governed API façade, process selected Event Grid notifications, and reuse common Key Vault handling across applications while preserving least-privilege access and secret redaction.
Frequently asked questions
Azure Key Vault can be integrated through its versioned REST APIs using Microsoft Entra ID OAuth 2.0 authentication. Enterprise workflows can manage Secrets, Keys, Certificates, deleted items, selected cryptographic operations, and vault configuration through separate data-plane and management-plane APIs. Selected lifecycle and expiration events can be delivered through Azure Event Grid.
Yes. Martini can consume Azure Key Vault REST APIs using appropriately scoped Microsoft Entra tokens and can receive selected Azure Event Grid notifications through a Martini API or webhook workflow. No native Martini Azure Key Vault connector is confirmed in the supplied documentation.
No. A dedicated Azure Key Vault connector is not required. Martini can use Azure Key Vault's confirmed native REST APIs, Microsoft Entra authentication, and selected Event Grid notification mechanisms through workflows and APIs.
Lonti does not charge an additional per-connector or per-vendor fee to integrate Azure Key Vault. The integration is subject to the provisioned capacity of the Martini environment. Separate costs may apply from Microsoft Azure, infrastructure providers, or other third-party systems depending on subscription, usage, and deployment model.
Use the versioned REST APIs for current data-plane and management-plane operations, with Microsoft Entra ID tokens and least-privilege permissions. Use Azure Event Grid for selected lifecycle and expiration-related notifications. Azure Key Vault does not provide a confirmed GraphQL API, and its documented model is not SOAP-based.
Selected Key Vault lifecycle and expiration-related events can be published through Azure Event Grid, including selected Secret and Certificate notifications. This is partial event coverage rather than a callback for every Key Vault operation. Martini can receive Event Grid HTTP deliveries and apply validation and idempotency handling.
A scheduled Martini workflow can list approved Secrets, Keys, or Certificates, follow continuation tokens, retrieve required versions, transform the results, and write them to an approved target. Synchronization should use allowlists, version-aware updates, bounded concurrency, and controlled retries rather than copying an entire vault indiscriminately.
Martini workflows can distinguish token failures, insufficient permissions, missing objects, conflicts, throttling, and transient service errors. Bounded backoff can be applied to suitable 429 and 5xx responses. Event Grid deliveries should use event IDs, object identifiers, or versions as idempotency keys so duplicate notifications do not repeat side effects.
Related Martini documentation
Security
Integrate Azure Key Vault with Martini
Use Martini to securely orchestrate Azure Key Vault REST APIs, selected Event Grid notifications, enterprise workflows, and downstream systems.