Azure Regions Reference for Synapse Analytics¶

# disaster_recovery.py
from azure.mgmt.synapse import SynapseManagementClient
from azure.identity import DefaultAzureCredential
from azure.mgmt.storage import StorageManagementClient

class DisasterRecoveryController:
    """Manage disaster recovery operations."""

    def __init__(self, subscription_id: str):
        self.credential = DefaultAzureCredential()
        self.synapse_client = SynapseManagementClient(
            self.credential, subscription_id
        )
        self.storage_client = StorageManagementClient(
            self.credential, subscription_id
        )

    def initiate_failover(
        self,
        resource_group: str,
        workspace_name: str,
        target_region: str
    ):
        """
        Initiate failover to disaster recovery region.

        Args:
            resource_group: Resource group name
            workspace_name: Synapse workspace name
            target_region: Target DR region
        """
        print(f"Initiating failover for {workspace_name} to {target_region}")

        # 1. Verify secondary region availability
        self._check_region_health(target_region)

        # 2. Initiate storage failover
        self._failover_storage(resource_group)

        # 3. Update DNS/Traffic Manager
        self._update_traffic_routing(target_region)

        # 4. Validate failover
        self._validate_failover(resource_group, workspace_name)

        print("Failover completed successfully")

    def _check_region_health(self, region: str):
        """Check health status of target region."""
        # Implementation to verify region health
        pass

    def _failover_storage(self, resource_group: str):
        """Initiate storage account failover."""
        # Implementation for storage failover
        pass

# region_selector.py
def select_region_by_compliance(compliance_requirements: list) -> list:
    """
    Select appropriate regions based on compliance requirements.

    Args:
        compliance_requirements: List of required compliance frameworks

    Returns:
        List of compliant regions
    """
    compliance_map = {
        "GDPR": ["westeurope", "northeurope", "francecentral", "germanywestcentral"],
        "HIPAA": ["eastus", "westus", "centralus"],
        "FedRAMP": ["usgovvirginia", "usgovarizona", "usgovtexas"],
        "PDPA": ["southeastasia"],
        "LGPD": ["brazilsouth"],
    }

    # Find regions that satisfy all requirements
    compliant_regions = None
    for requirement in compliance_requirements:
        regions = set(compliance_map.get(requirement, []))
        if compliant_regions is None:
            compliant_regions = regions
        else:
            compliant_regions = compliant_regions.intersection(regions)

    return list(compliant_regions) if compliant_regions else []

# Example usage
requirements = ["GDPR", "ISO 27001"]
recommended_regions = select_region_by_compliance(requirements)
print(f"Recommended regions: {recommended_regions}")

def select_region_by_latency(source_location: str, max_latency_ms: int) -> list:
    """
    Select regions based on latency requirements.

    Args:
        source_location: Primary data source location
        max_latency_ms: Maximum acceptable latency in milliseconds

    Returns:
        List of regions meeting latency requirement
    """
    # Latency matrix (simplified)
    latency_matrix = {
        "eastus": {
            "eastus": 1,
            "westus": 70,
            "westeurope": 90,
            "southeastasia": 200,
        },
        "westeurope": {
            "westeurope": 1,
            "northeurope": 15,
            "eastus": 90,
            "southeastasia": 160,
        },
    }

    acceptable_regions = []
    if source_location in latency_matrix:
        for region, latency in latency_matrix[source_location].items():
            if latency <= max_latency_ms:
                acceptable_regions.append(region)

    return acceptable_regions

def calculate_regional_costs(workload_config: dict) -> dict:
    """
    Calculate estimated costs across regions.

    Args:
        workload_config: Dictionary with compute, storage, and network requirements

    Returns:
        Dictionary of regions with estimated monthly costs
    """
    # Regional pricing multipliers (relative to East US)
    regional_multipliers = {
        "eastus": 1.0,
        "westeurope": 1.10,
        "uksouth": 1.15,
        "australiaeast": 1.20,
        "brazilsouth": 1.25,
    }

    base_cost = (
        workload_config["compute_hours"] * 0.50 +
        workload_config["storage_gb"] * 0.02 +
        workload_config["network_gb"] * 0.08
    )

    return {
        region: round(base_cost * multiplier, 2)
        for region, multiplier in regional_multipliers.items()
    }

# region_migration.py
from azure.mgmt.synapse import SynapseManagementClient
from azure.storage.filedatalake import DataLakeServiceClient
from azure.identity import DefaultAzureCredential

class RegionMigration:
    """Handle migration of Synapse workspace between regions."""

    def __init__(self, subscription_id: str):
        self.credential = DefaultAzureCredential()
        self.synapse_client = SynapseManagementClient(
            self.credential, subscription_id
        )

    def migrate_workspace(
        self,
        source_rg: str,
        source_workspace: str,
        target_region: str,
        target_rg: str
    ):
        """
        Migrate Synapse workspace to new region.

        Args:
            source_rg: Source resource group
            source_workspace: Source workspace name
            target_region: Target Azure region
            target_rg: Target resource group
        """
        print(f"Starting migration from {source_workspace} to {target_region}")

        # 1. Export source configuration
        config = self._export_configuration(source_rg, source_workspace)

        # 2. Copy data to target region
        self._copy_data(source_rg, target_rg, target_region)

        # 3. Create target workspace
        self._create_target_workspace(
            target_rg, target_region, config
        )

        # 4. Validate migration
        self._validate_migration(target_rg, source_workspace)

        print("Migration completed successfully")

    def _export_configuration(self, rg: str, workspace: str) -> dict:
        """Export workspace configuration."""
        # Export pipelines, notebooks, SQL scripts, etc.
        return {}

    def _copy_data(self, source_rg: str, target_rg: str, target_region: str):
        """Copy data using AzCopy or Data Factory."""
        pass

    def _create_target_workspace(self, rg: str, region: str, config: dict):
        """Create workspace in target region with configuration."""
        pass

    def _validate_migration(self, rg: str, workspace: str):
        """Validate migrated workspace."""
        pass