## Azure Database for MySQL

Azure Database for MySQL is a fully managed relational database service that provides enterprise-grade reliability and security. It supports JSON-based vector storage for semantic search capabilities in AI applications.

### Usage

```
import os
from mem0 import Memory

os.environ["OPENAI_API_KEY"] = "sk-xx"

config = {
    "vector_store": {
        "provider": "azure_mysql",
        "config": {
            "host": "your-server.mysql.database.azure.com",
            "port": 3306,
            "user": "your_username",
            "password": "your_password",
            "database": "mem0_db",
            "collection_name": "memories",
        }
    }
}

m = Memory.from_config(config)
m.add(messages, user_id="alice", metadata={"category": "movies"})
```

### Using Azure Managed Identity

For production deployments, use Azure Managed Identity instead of passwords:

```
config = {
    "vector_store": {
        "provider": "azure_mysql",
        "config": {
            "host": "your-server.mysql.database.azure.com",
            "user": "your_username",
            "database": "mem0_db",
            "collection_name": "memories",
            "use_azure_credential": True,  # Uses DefaultAzureCredential
            "ssl_disabled": False
        }
    }
}
```

When `use_azure_credential` is enabled, the password is obtained via Azure DefaultAzureCredential (supports Managed Identity, Azure CLI, etc.)

### Config

Here are the parameters available for configuring Azure MySQL:

| Parameter                   | Description                                 | Default Value |
|-----------------------------|---------------------------------------------|---------------|
| `host`                      | MySQL server hostname                        | Required      |
| `port`                      | MySQL server port                           | `3306`        |
| `user`                      | Database user                               | Required      |
| `password`                  | Database password (optional with Azure)    | `None`        |
| `database`                  | Database name                               | Required      |
| `collection_name`           | Table name for storing vectors              | "mem0"       |
| `embedding_model_dims`      | Dimensions of embedding vectors             | `1536`        |
| `use_azure_credential`      | Use Azure DefaultAzureCredential            | `False`       |
| `ssl_ca`                   | Path to SSL CA certificate                  | `None`        |
| `ssl_disabled`              | Disable SSL (not recommended)              | `False`       |
| `minconn`                  | Minimum connections in pool                 | `1`           |
| `maxconn`                  | Maximum connections in pool                 | `5`           |

### Setup

#### Create MySQL Flexible Server using Azure CLI:

```
# Create resource group
az group create --name mem0-rg --location eastus

# Create MySQL Flexible Server
az mysql flexible-server create \
    --resource-group mem0-rg \
    --name mem0-mysql-server \
    --location eastus \
    --admin-user myadmin \
    --admin-password <YourPassword> \
    --version 8.0.21

# Create database
az mysql flexible-server db create \
    --resource-group mem0-rg \
    --server-name mem0-mysql-server \
    --database-name mem0_db

# Configure firewall
az mysql flexible-server firewall-rule create \
    --resource-group mem0-rg \
    --name mem0-mysql-server \
    --rule-name AllowMyIP \
    --start-ip-address <YourIP> \
    --end-ip-address <YourIP>
```

#### Enable Azure AD Authentication:

1. In Azure Portal, navigate to your MySQL Flexible Server
2. Go to **Security** > **Authentication** and enable Azure AD
3. Add your application’s managed identity as a MySQL user:

```
CREATE AADUSER 'your-app-identity' IDENTIFIED BY 'your-client-id';
GRANT ALL PRIVILEGES ON mem0_db.* TO 'your-app-identity'@'%';
FLUSH PRIVILEGES;
```

For production, use [Managed Identity](https://learn.microsoft.com/azure/active-directory/managed-identities-azure-resources/) to eliminate password management.