def validate_route_table()

in pce/validator/validation_suite.py [0:0]

• 44 lines of code
• 12 McCabe index (conditional complexity)

    def validate_route_table(self, pce: PCE) -> ValidationResult:
        """
        Make sure there is an entry in the route table for the VPC peer and that it is active
        """
        vpc = pce.pce_network.vpc
        if not vpc:
            return ValidationResult(
                ValidationResultCode.ERROR,
                ValidationErrorDescriptionTemplate.VPC_PEERING_NO_VPC.value,
            )
        route_table = pce.pce_network.route_table
        if not route_table:
            return ValidationResult(
                ValidationResultCode.ERROR,
                ValidationErrorDescriptionTemplate.VPC_PEERING_NO_ROUTE_TABLE.value,
            )

        is_vpc_peering_valid = any(
            r.state == RouteState.ACTIVE
            and r.route_target.route_target_type == RouteTargetType.VPC_PEERING
            for r in (route_table.routes if route_table else [])
        )

        if not is_vpc_peering_valid:
            return ValidationResult(
                ValidationResultCode.ERROR,
                ValidationErrorDescriptionTemplate.ROUTE_TABLE_VPC_PEERING_MISSING.value,
                ValidationErrorSolutionHintTemplate.ROUTE_TABLE_VPC_PEERING_MISSING.value,
            )

        igw_route = None
        for route in route_table.routes:
            if (
                route.route_target.route_target_type == RouteTargetType.INTERNET
                and route.destination_cidr_block == IGW_ROUTE_DESTINATION_CIDR_BLOCK
            ):
                igw_route = route

        if not igw_route:
            return ValidationResult(
                ValidationResultCode.ERROR,
                ValidationErrorDescriptionTemplate.ROUTE_TABLE_IGW_MISSING.value,
                ValidationErrorSolutionHintTemplate.ROUTE_TABLE_IGW_MISSING.value,
            )

        if igw_route.state != RouteState.ACTIVE:
            return ValidationResult(
                ValidationResultCode.ERROR,
                ValidationErrorDescriptionTemplate.ROUTE_TABLE_IGW_INACTIVE.value,
                ValidationErrorSolutionHintTemplate.ROUTE_TABLE_IGW_INACTIVE.value,
            )

        return ValidationResult(ValidationResultCode.SUCCESS)