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How to use search_transit_gateway_routes method in localstack

Best Python code snippet using localstack_python

TGW-Static-Route-VPN-Failover.py

Source:TGW-Static-Route-VPN-Failover.py

...81        else:82            SecondaryVPN = 'UP'83            print('Secondary VPN ' + StandbyVPN + ' is UP')84    # check the existing routes which are for primary VPN store the CIDR85    response_route = client.search_transit_gateway_routes(TransitGatewayRouteTableId=TGWRouteTableId,86                                                          Filters=[87                                                              {88                                                                  'Name': 'attachment.transit-gateway-attachment-id',89                                                                  'Values': [90                                                                      ActiveVPN_Ass_Id91                                                                  ]92                                                              }93                                                          ], )94    for route in range(0, len(response_route['Routes'])):95        a = response_route['Routes'][route]['DestinationCidrBlock']96        CIDR.append(a)97    response_route = client.search_transit_gateway_routes(TransitGatewayRouteTableId=TGWRouteTableId,98                                                          Filters=[99                                                              {100                                                                  'Name': 'attachment.transit-gateway-attachment-id',101                                                                  'Values': [102                                                                      PassiveVPN_Ass_Id103                                                                  ]104                                                              }105                                                          ], )106    for route in range(0, len(response_route['Routes'])):107        a = response_route['Routes'][route]['DestinationCidrBlock']108        CIDR.append(a)109#    print(CIDR)110    # If primary VPN is UP, ensure that the routes are pointing towards primary VPN111    if PrimaryVPN == 'UP':  # change it to UP for real test112        for i in CIDR:113            response = client.search_transit_gateway_routes(114                TransitGatewayRouteTableId=TGWRouteTableId,115                Filters=[116                    {117                        'Name': 'route-search.exact-match',118                        'Values': [i]119                    },120                ], )121            if response['Routes'][0]['TransitGatewayAttachments'][0]['TransitGatewayAttachmentId'] == ActiveVPN_Ass_Id:122                break123            else:124                response = client.replace_transit_gateway_route(125                    DestinationCidrBlock=i,126                    TransitGatewayRouteTableId=TGWRouteTableId,127                    TransitGatewayAttachmentId=ActiveVPN_Ass_Id,128                )129        print('Route is pointing towards ' + ActiveVPN)130    elif (PrimaryVPN == 'DOWN') and (SecondaryVPN == 'UP'):131        for i in CIDR:132            response = client.search_transit_gateway_routes(133                TransitGatewayRouteTableId=TGWRouteTableId,134                Filters=[135                    {136                        'Name': 'route-search.exact-match',137                        'Values': [i]138                    },139                ], )140            if response['Routes'][0]['TransitGatewayAttachments'][0]['TransitGatewayAttachmentId'] == PassiveVPN_Ass_Id:141                break142            else:143                response = client.replace_transit_gateway_route(144                    DestinationCidrBlock=i,145                    TransitGatewayRouteTableId=TGWRouteTableId,146                    TransitGatewayAttachmentId=PassiveVPN_Ass_Id,147                )148        print('Route is pointing towards ' + StandbyVPN)149    # when both vpn are UP150    elif (PrimaryVPN == 'UP') and (SecondaryVPN == 'UP'):151        for i in CIDR:152            response = client.search_transit_gateway_routes(153                TransitGatewayRouteTableId=TGWRouteTableId,154                Filters=[155                    {156                        'Name': 'route-search.exact-match',157                        'Values': [i]158                    },159                ], )160            print(161                CIDR[i] + 'is poinging towards ' + response['Routes'][0]['TransitGatewayAttachments'][0]['ResourceId'])162    #when both vpn are DOWN163    elif (PrimaryVPN == 'DOWN') and (SecondaryVPN == 'DOWN'):...

handler.py

Source:handler.py

...26    # Search transit gateways27    for transit_gateway_route_table in get_transit_gateway_route_tables['TransitGatewayRouteTables']:28      logger.info("Transit Gateway Route Table: " + transit_gateway_route_table['TransitGatewayRouteTableId'])29      # Loop over transit gateway routes filtering on active state30      search_active_transit_gateway_routes = ec2.search_transit_gateway_routes(31        TransitGatewayRouteTableId = transit_gateway_route_table['TransitGatewayRouteTableId'],32        Filters=[33          {34              'Name': 'state',35              'Values': [36                  'active',37              ]38          }39        ]40      )41      if len(search_active_transit_gateway_routes['Routes']) == 0:42        logger.info("No Transit Gateway Attachements in active state")43      else:44        for active_transit_gateway_route in search_active_transit_gateway_routes['Routes']:45          logger.info("Transit Gateway Attachment (Active) " + active_transit_gateway_route['TransitGatewayAttachments'][0]['TransitGatewayAttachmentId'] + " Route: " + active_transit_gateway_route['DestinationCidrBlock'])46          put_cloudwatch_metric_data = cloudwatch.put_metric_data(47              Namespace='HMPPS/EMS/SharedNetworking',48              MetricData=[49                {50                  'MetricName': 'TransitGatewayAttachmentStatus',51                  'Dimensions': [52                    {53                      'Name': 'TransitGatewayAttachmentId',54                      'Value': active_transit_gateway_route['TransitGatewayAttachments'][0]['TransitGatewayAttachmentId']55                    },56                    {57                      'Name': 'DestinationCidrBlock',58                      'Value': active_transit_gateway_route['DestinationCidrBlock']59                    },60                    {61                      'Name': 'ResourceType',62                      'Value': active_transit_gateway_route['TransitGatewayAttachments'][0]['ResourceType']63                    },64                  ],65                  'Unit': 'None',66                  'Value': 167                },68              ]69          )70      # Loop over transit gateway routes filtering on blackholed state71      search_blackholed_transit_gateway_routes = ec2.search_transit_gateway_routes(72        TransitGatewayRouteTableId = transit_gateway_route_table['TransitGatewayRouteTableId'],73        Filters=[74          {75              'Name': 'state',76              'Values': [77                  'blackhole',78              ]79          }80        ]81      )82      if len(search_blackholed_transit_gateway_routes['Routes']) == 0:83        logger.info("No Transit Gateway Attachements in blackholed state")84      else:85        for blackholed_transit_gateway_route in search_blackholed_transit_gateway_routes['Routes']:...

main.py

Source:main.py

...9    cidr_blocks = event['cidr_blocks']10    tgw_route_table_id = event['tgw_route_table_id']11    for cidr_block in cidr_blocks:12        # find all routes that belong in a specific CIDR block or its subnets13        routes = ec2.search_transit_gateway_routes(14            TransitGatewayRouteTableId=tgw_route_table_id,15            Filters=[16                {17                    'Name': 'route-search.subnet-of-match',18                    'Values': [19                        cidr_block,20                    ]21                },22                {23                    'Name': 'attachment.resource-type',24                    'Values': [25                        'vpc',26                    ]27                }28            ]29        )30        # array with the CIDR blocks that were identified31        cidr_blocks_for_routes = (32            [d['DestinationCidrBlock'] for d in routes['Routes']]33        )34        # if a static route does not already exis35        if len(cidr_blocks_for_routes) > 0:36            if cidr_block not in cidr_blocks_for_routes:37                tgw_attachements = (38                    [d['TransitGatewayAttachments'] for d in routes['Routes']]39                )40                tgw_vpc_attachements = (41                    [d for d in tgw_attachements if d[0]['ResourceType'] in ['vpc']]  # noqa: E50142                )43                # identify attachment id for VPC44                tgw_attach_id = tgw_vpc_attachements[0][0]['TransitGatewayAttachmentId']  # noqa: E50145                logger.info('Creating route for: %s' % str(cidr_block))46                ec2.create_transit_gateway_route(47                    DestinationCidrBlock=cidr_block,48                    TransitGatewayRouteTableId=tgw_route_table_id,49                    TransitGatewayAttachmentId=tgw_attach_id50                )51    ####################52    # start - cleanup53    # find all static routes to vpcs54    all_static_routes = ec2.search_transit_gateway_routes(55        TransitGatewayRouteTableId=tgw_route_table_id,56        Filters=[57            {58                'Name': 'type',59                'Values': [60                    'static',61                ]62            },63            {64                'Name': 'attachment.resource-type',65                'Values': [66                    'vpc',67                ]68            }...

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