azure-identity-py
Azure Identity SDK for Python authentication. Use for DefaultAzureCredential, managed identity, service principals, and token caching. Triggers on azure-identity, DefaultAzureCredential, authentication, managed identity, service principal, credential.
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소스 지침 · 읽기 전용 미리보기- name
- azure-identity-py
- description
- Azure Identity SDK for Python authentication. Use for DefaultAzureCredential, managed identity, service principals, and token caching. Triggers on azure-identity, DefaultAzureCredential, authentication, managed identity, service principal, credential.
- package
- azure-identity
# Azure Identity SDK for Python
Authentication library for Azure SDK clients using Microsoft Entra ID (formerly Azure AD).
## Installation
```bash
pip install azure-identity
```
## Environment Variables
```bash
# Service Principal (for production/CI)
AZURE_TENANT_ID=<your-tenant-id>
AZURE_CLIENT_ID=<your-client-id>
AZURE_CLIENT_SECRET=<your-client-secret>
# User-assigned Managed Identity (optional)
AZURE_CLIENT_ID=<managed-identity-client-id>
```
## DefaultAzureCredential
The recommended credential for most scenarios. Tries multiple authentication methods in order:
```python
from azure.identity import DefaultAzureCredential
from azure.storage.blob import BlobServiceClient
# Works in local dev AND production without code changes
credential = DefaultAzureCredential()
client = BlobServiceClient(
account_url="https://<account>.blob.core.windows.net",
credential=credential
)
```
### Credential Chain Order
| Order | Credential | Environment |
|-------|-----------|-------------|
| 1 | EnvironmentCredential | CI/CD, containers |
| 2 | WorkloadIdentityCredential | Kubernetes |
| 3 | ManagedIdentityCredential | Azure VMs, App Service, Functions |
| 4 | SharedTokenCacheCredential | Windows only |
| 5 | VisualStudioCodeCredential | VS Code with Azure extension |
| 6 | AzureCliCredential | `az login` |
| 7 | AzurePowerShellCredential | `Connect-AzAccount` |
| 8 | AzureDeveloperCliCredential | `azd auth login` |
### Customizing DefaultAzureCredential
```python
# Exclude credentials you don't need
credential = DefaultAzureCredential(
exclude_environment_credential=True,
exclude_shared_token_cache_credential=True,
managed_identity_client_id="<user-assigned-mi-client-id>" # For user-assigned MI
)
# Enable interactive browser (disabled by default)
credential = DefaultAzureCredential(
exclude_interactive_browser_credential=False
)
```
## Specific Credential Types
### ManagedIdentityCredential
For Azure-hosted resources (VMs, App Service, Functions, AKS):
```python
from azure.identity import ManagedIdentityCredential
# System-assigned managed identity
credential = ManagedIdentityCredential()
# User-assigned managed identity
credential = ManagedIdentityCredential(
client_id="<user-assigned-mi-client-id>"
)
```
### ClientSecretCredential
For service principal with secret:
```python
from azure.identity import ClientSecretCredential
credential = ClientSecretCredential(
tenant_id=os.environ["AZURE_TENANT_ID"],
client_id=os.environ["AZURE_CLIENT_ID"],
client_secret=os.environ["AZURE_CLIENT_SECRET"]
)
```
### AzureCliCredential
Uses the account from `az login`:
```python
from azure.identity import AzureCliCredential
credential = AzureCliCredential()
```
### ChainedTokenCredential
Custom credential chain:
```python
from azure.identity import (
ChainedTokenCredential,
ManagedIdentityCredential,
AzureCliCredential
)
# Try managed identity first, fall back to CLI
credential = ChainedTokenCredential(
ManagedIdentityCredential(client_id="<user-assigned-mi-client-id>"),
AzureCliCredential()
)
```
## Credential Types Table
| Credential | Use Case | Auth Method |
|------------|----------|-------------|
| `DefaultAzureCredential` | Most scenarios | Auto-detect |
| `ManagedIdentityCredential` | Azure-hosted apps | Managed Identity |
| `ClientSecretCredential` | Service principal | Client secret |
| `ClientCertificateCredential` | Service principal | Certificate |
| `AzureCliCredential` | Local development | Azure CLI |
| `AzureDeveloperCliCredential` | Local development | Azure Developer CLI |
| `InteractiveBrowserCredential` | User sign-in | Browser OAuth |
| `DeviceCodeCredential` | Headless/SSH | Device code flow |
## Getting Tokens Directly
```python
from azure.identity import DefaultAzureCredential
credential = DefaultAzureCredential()
# Get token for a specific scope
token = credential.get_token("https://management.azure.com/.default")
print(f"Token expires: {token.expires_on}")
# For Azure Database for PostgreSQL
token = credential.get_token("https://ossrdbms-aad.database.windows.net/.default")
```
## Async Client
```python
from azure.identity.aio import DefaultAzureCredential
from azure.storage.blob.aio import BlobServiceClient
async def main():
credential = DefaultAzureCredential()
async with BlobServiceClient(
account_url="https://<account>.blob.core.windows.net",
credential=credential
) as client:
# ... async operations
pass
await credential.close()
```
## Best Practices
1. **Use DefaultAzureCredential** for code that runs locally and in Azure
2. **Never hardcode credentials** — use environment variables or managed identity
3. **Prefer managed identity** in production Azure deployments
4. **Use ChainedTokenCredential** when you need a custom credential order
5. **Close async credentials** explicitly or use context managers
6. **Set AZURE_CLIENT_ID** for user-assigned managed identities
7. **Exclude unused credentials** to speed up authentication
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