DNS Record Set Management

def create_or_update(
    self,
    resource_group_name: str,
    zone_name: str,
    relative_record_set_name: str,
    record_type: Union[str, RecordType],
    parameters: Union[RecordSet, IO[bytes]],
    if_match: Optional[str] = None,
    if_none_match: Optional[str] = None,
    **kwargs: Any
) -> RecordSet:
    """
    Create or update a DNS record set.
    
    Args:
        resource_group_name: Name of the resource group containing the zone
        zone_name: Name of the DNS zone
        relative_record_set_name: Name relative to zone (use "@" for apex records)
        record_type: Type of DNS record (A, AAAA, CNAME, etc.)
        parameters: Record set configuration with DNS records
        if_match: ETag value for conditional updates
        if_none_match: Set to "*" to prevent overwriting
        
    Returns:
        RecordSet: The created or updated record set
        
    Raises:
        HttpResponseError: If the operation fails
    """

from azure.mgmt.dns.models import RecordSet, ARecord, CnameRecord, MxRecord, RecordType

# Create an A record set with multiple IP addresses
a_record_set = RecordSet(
    ttl=300,
    a_records=[
        ARecord(ipv4_address="192.0.2.1"),
        ARecord(ipv4_address="192.0.2.2")
    ]
)

result = dns_client.record_sets.create_or_update(
    resource_group_name="my-rg",
    zone_name="example.com",
    relative_record_set_name="www",
    record_type=RecordType.A,
    parameters=a_record_set
)

# Create a CNAME record
cname_record_set = RecordSet(
    ttl=3600,
    cname_record=CnameRecord(cname="www.example.com")
)

dns_client.record_sets.create_or_update(
    resource_group_name="my-rg",
    zone_name="example.com",
    relative_record_set_name="blog",
    record_type=RecordType.CNAME,
    parameters=cname_record_set
)

# Create MX records for email
mx_record_set = RecordSet(
    ttl=3600,
    mx_records=[
        MxRecord(preference=10, exchange="mail1.example.com"),
        MxRecord(preference=20, exchange="mail2.example.com")
    ]
)

dns_client.record_sets.create_or_update(
    resource_group_name="my-rg",
    zone_name="example.com",
    relative_record_set_name="@",  # Apex record
    record_type=RecordType.MX,
    parameters=mx_record_set
)

def update(
    self,
    resource_group_name: str,
    zone_name: str,
    relative_record_set_name: str,
    record_type: Union[str, RecordType],
    parameters: Union[RecordSet, IO[bytes]],
    if_match: Optional[str] = None,
    **kwargs: Any
) -> RecordSet:
    """
    Update properties of an existing DNS record set.
    
    Args:
        resource_group_name: Name of the resource group containing the zone
        zone_name: Name of the DNS zone
        relative_record_set_name: Name of the record set
        record_type: Type of DNS record
        parameters: Record set with updated properties
        if_match: ETag value for conditional updates
        
    Returns:
        RecordSet: The updated record set
        
    Raises:
        HttpResponseError: If the record set is not found
    """

def delete(
    self,
    resource_group_name: str,
    zone_name: str,
    relative_record_set_name: str,
    record_type: Union[str, RecordType],
    if_match: Optional[str] = None,
    **kwargs: Any
) -> None:
    """
    Delete a DNS record set.
    
    Args:
        resource_group_name: Name of the resource group containing the zone
        zone_name: Name of the DNS zone
        relative_record_set_name: Name of the record set
        record_type: Type of DNS record
        if_match: ETag value for conditional deletion
        
    Raises:
        HttpResponseError: If the record set is not found
    """

# Delete a specific record set
dns_client.record_sets.delete(
    resource_group_name="my-rg",
    zone_name="example.com",
    relative_record_set_name="old-service",
    record_type=RecordType.A
)

def get(
    self,
    resource_group_name: str,
    zone_name: str,
    relative_record_set_name: str,
    record_type: Union[str, RecordType],
    **kwargs: Any
) -> RecordSet:
    """
    Get a specific DNS record set.
    
    Args:
        resource_group_name: Name of the resource group containing the zone
        zone_name: Name of the DNS zone
        relative_record_set_name: Name of the record set
        record_type: Type of DNS record
        
    Returns:
        RecordSet: The DNS record set with all its records
        
    Raises:
        HttpResponseError: If the record set is not found
    """

def list_by_dns_zone(
    self,
    resource_group_name: str,
    zone_name: str,
    top: Optional[int] = None,
    recordsetnamesuffix: Optional[str] = None,
    **kwargs: Any
) -> ItemPaged[RecordSet]:
    """
    List all record sets in a DNS zone.
    
    Args:
        resource_group_name: Name of the resource group containing the zone
        zone_name: Name of the DNS zone
        top: Maximum number of record sets to return
        recordsetnamesuffix: Filter by record set name suffix
        
    Returns:
        ItemPaged[RecordSet]: Paginated list of record sets
    """

def list_by_type(
    self,
    resource_group_name: str,
    zone_name: str,
    record_type: Union[str, RecordType],
    top: Optional[int] = None,
    recordsetnamesuffix: Optional[str] = None,
    **kwargs: Any
) -> ItemPaged[RecordSet]:
    """
    List record sets of a specific type in a DNS zone.
    
    Args:
        resource_group_name: Name of the resource group containing the zone
        zone_name: Name of the DNS zone
        record_type: Type of DNS record to filter by
        top: Maximum number of record sets to return
        recordsetnamesuffix: Filter by record set name suffix
        
    Returns:
        ItemPaged[RecordSet]: Paginated list of record sets
    """

def list_all_by_dns_zone(
    self,
    resource_group_name: str,
    zone_name: str,
    top: Optional[int] = None,
    record_set_name_suffix: Optional[str] = None,
    **kwargs: Any
) -> ItemPaged[RecordSet]:
    """
    Alternative endpoint for listing all record sets in a zone.
    
    Args:
        resource_group_name: Name of the resource group containing the zone
        zone_name: Name of the DNS zone
        top: Maximum number of record sets to return
        record_set_name_suffix: Filter by record set name suffix
        
    Returns:
        ItemPaged[RecordSet]: Paginated list of record sets
    """

# List all record sets in a zone
all_records = dns_client.record_sets.list_by_dns_zone(
    resource_group_name="my-rg",
    zone_name="example.com"
)
for record_set in all_records:
    print(f"{record_set.name} ({record_set.type}) - TTL: {record_set.ttl}")

# List only A records
a_records = dns_client.record_sets.list_by_type(
    resource_group_name="my-rg",
    zone_name="example.com",
    record_type=RecordType.A
)
for record_set in a_records:
    print(f"A record: {record_set.name} -> {[r.ipv4_address for r in record_set.a_records]}")

# List records with name suffix filtering
web_records = dns_client.record_sets.list_by_dns_zone(
    resource_group_name="my-rg",
    zone_name="example.com",
    recordsetnamesuffix="web"  # Matches "web", "web1", "webapp", etc.
)

class ARecord:
    """IPv4 address record."""
    ipv4_address: str  # IPv4 address (e.g., "192.0.2.1")

from azure.mgmt.dns.models import RecordSet, ARecord

record_set = RecordSet(
    ttl=300,
    a_records=[
        ARecord(ipv4_address="192.0.2.1"),
        ARecord(ipv4_address="192.0.2.2")
    ]
)

class AaaaRecord:
    """IPv6 address record."""
    ipv6_address: str  # IPv6 address (e.g., "2001:db8::1")

class CnameRecord:
    """Canonical name record (alias)."""
    cname: str  # Target domain name

from azure.mgmt.dns.models import RecordSet, CnameRecord

cname_record_set = RecordSet(
    ttl=3600,
    cname_record=CnameRecord(cname="target.example.com")
)

class MxRecord:
    """Mail exchange record for email routing."""
    preference: int  # Priority (lower numbers have higher priority)
    exchange: str    # Mail server hostname

class NsRecord:
    """Name server record."""
    nsdname: str  # Name server domain name

class TxtRecord:
    """Text record for arbitrary text data."""
    value: List[str]  # List of text strings (each ≤255 characters)

from azure.mgmt.dns.models import RecordSet, TxtRecord

txt_record_set = RecordSet(
    ttl=300,
    txt_records=[
        TxtRecord(value=["v=spf1 include:_spf.google.com ~all"]),
        TxtRecord(value=["google-site-verification=abc123..."])
    ]
)

class SrvRecord:
    """Service record for service discovery."""
    priority: int  # Priority (lower is higher priority)
    weight: int    # Weight for load balancing among same priority
    port: int      # Service port number
    target: str    # Target hostname

class PtrRecord:
    """Pointer record for reverse DNS lookups."""
    ptrdname: str  # Target domain name

class SoaRecord:
    """Start of Authority record (zone metadata)."""
    host: str           # Primary name server
    email: str          # Administrator email (dots replaced with @)
    serial_number: int  # Zone serial number
    refresh_time: int   # Refresh interval (seconds)
    retry_time: int     # Retry interval (seconds)
    expire_time: int    # Expiration time (seconds)
    minimum_ttl: int    # Minimum TTL for negative caching

class CaaRecord:
    """Certificate Authority Authorization record."""
    flags: int  # Flags (typically 0 or 128 for critical)
    tag: str    # Property tag ("issue", "issuewild", "iodef")
    value: str  # Property value (CA domain or URL)

from azure.mgmt.dns.models import RecordSet, CaaRecord

caa_record_set = RecordSet(
    ttl=3600,
    caa_records=[
        CaaRecord(flags=0, tag="issue", value="letsencrypt.org"),
        CaaRecord(flags=0, tag="issue", value="digicert.com"),
        CaaRecord(flags=128, tag="iodef", value="mailto:security@example.com")
    ]
)

class RecordSet:
    """
    Represents a DNS record set within a zone.
    
    A record set groups multiple DNS records of the same type and name.
    """
    
    # Read-only properties
    id: str                       # Azure resource ID
    name: str                     # Record set name relative to zone
    type: str                     # Record set type (e.g., "Microsoft.Network/dnszones/A")
    etag: str                     # ETag for concurrency control
    fqdn: str                     # Fully qualified domain name (read-only)
    
    # Configurable properties
    ttl: int                      # Time-to-live in seconds (1-2147483647)
    metadata: Dict[str, str]      # Custom metadata key-value pairs
    target_resource: SubResource  # Reference to Azure resource (for alias records)
    
    # Record type specific arrays (only one should be populated)
    a_records: List[ARecord]                    # IPv4 address records
    aaaa_records: List[AaaaRecord]              # IPv6 address records
    caa_records: List[CaaRecord]                # Certificate authority records
    cname_record: CnameRecord                   # Canonical name (single record)
    mx_records: List[MxRecord]                  # Mail exchange records
    ns_records: List[NsRecord]                  # Name server records
    ptr_records: List[PtrRecord]                # Pointer records
    soa_record: SoaRecord                       # Start of authority (single record)
    srv_records: List[SrvRecord]                # Service records
    txt_records: List[TxtRecord]                # Text records

class RecordType(str, Enum):
    """Supported DNS record types."""
    A = "A"           # IPv4 address
    AAAA = "AAAA"     # IPv6 address
    CAA = "CAA"       # Certificate Authority Authorization
    CNAME = "CNAME"   # Canonical name
    MX = "MX"         # Mail exchange
    NS = "NS"         # Name server
    PTR = "PTR"       # Pointer (reverse DNS)
    SOA = "SOA"       # Start of authority
    SRV = "SRV"       # Service record
    TXT = "TXT"       # Text record

# Get current record set with ETag
record_set = dns_client.record_sets.get(
    resource_group_name="my-rg",
    zone_name="example.com",
    relative_record_set_name="api",
    record_type=RecordType.A
)

# Modify the record set
record_set.a_records.append(ARecord(ipv4_address="192.0.2.100"))

# Update with ETag to prevent conflicts
try:
    updated_record_set = dns_client.record_sets.create_or_update(
        resource_group_name="my-rg",
        zone_name="example.com",
        relative_record_set_name="api",
        record_type=RecordType.A,
        parameters=record_set,
        if_match=record_set.etag
    )
    print("Update successful")
except HttpResponseError as e:
    if e.status_code == 412:
        print("Conflict: Record set was modified by another client")

from concurrent.futures import ThreadPoolExecutor
from azure.mgmt.dns.models import RecordSet, ARecord, RecordType

def create_record_set(name, ip_address):
    record_set = RecordSet(
        ttl=300,
        a_records=[ARecord(ipv4_address=ip_address)]
    )
    
    return dns_client.record_sets.create_or_update(
        resource_group_name="my-rg",
        zone_name="example.com",
        relative_record_set_name=name,
        record_type=RecordType.A,
        parameters=record_set
    )

# Create multiple record sets in parallel
record_configs = [
    ("web1", "192.0.2.10"),
    ("web2", "192.0.2.11"),
    ("web3", "192.0.2.12")
]

with ThreadPoolExecutor(max_workers=5) as executor:
    results = list(executor.map(lambda config: create_record_set(*config), record_configs))

print(f"Created {len(results)} record sets")

from azure.core.exceptions import HttpResponseError

try:
    record_set = dns_client.record_sets.create_or_update(
        resource_group_name="my-rg",
        zone_name="example.com",
        relative_record_set_name="test",
        record_type=RecordType.A,
        parameters=RecordSet(ttl=300, a_records=[ARecord(ipv4_address="192.0.2.1")])
    )
except HttpResponseError as e:
    if e.status_code == 400:
        print("Bad request: Check record set configuration")
    elif e.status_code == 404:
        print("Zone not found")
    elif e.status_code == 409:
        print("Conflict: Record set already exists (when using if_none_match)")
    elif e.status_code == 412:
        print("Precondition failed: ETag mismatch")
    else:
        print(f"Unexpected error: {e.status_code} - {e.message}")