> ## Documentation Index
> Fetch the complete documentation index at: https://arizeai-433a7140.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Using Azure Database for PostgreSQL

> Phoenix supports Microsoft Entra managed-identity authentication for Azure Database for PostgreSQL.

<Info>
  Azure managed-identity authentication for PostgreSQL is available since Phoenix **14.8.0**. Use that version or newer before following this guide.
</Info>

First, ensure Phoenix runs in an environment where a managed identity is available (for example AKS, App Service, or an Azure VM). Azure PostgreSQL must have Microsoft Entra authentication enabled, and the managed identity must be created as a PostgreSQL principal.

Azure managed-identity auth in Phoenix requires `azure-identity` (for custom Python installs, install with `pip install 'arize-phoenix[azure]'`).

Then, configure Phoenix to use Azure managed identity for PostgreSQL:

```bash theme={null}
# Enable Azure managed-identity auth
export PHOENIX_POSTGRES_USE_AZURE_MANAGED_IDENTITY=true

# Database connection
export PHOENIX_POSTGRES_HOST=mydb.postgres.database.azure.com
export PHOENIX_POSTGRES_USER=my-managed-identity-name
export PHOENIX_POSTGRES_DB=phoenix

# Optional: set this only for non-public Azure clouds.
# Public Azure default (used when unset):
#   https://ossrdbms-aad.database.windows.net/.default
# Example for Azure US Government:
# export PHOENIX_POSTGRES_AZURE_SCOPE=https://ossrdbms-aad.database.usgovcloudapi.net/.default
```

Notes:

* Do not set `PHOENIX_POSTGRES_PASSWORD` when `PHOENIX_POSTGRES_USE_AZURE_MANAGED_IDENTITY=true`.
* You do not need a token-lifetime tuning variable. Phoenix reuses `DefaultAzureCredential`, and `azure-identity` handles token cache and refresh behavior.