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How to use describe_client_vpn_connections method in localstack

Best Python code snippet using localstack_python

main.py

Source:main.py

1import boto32import logging3from os import environ45logger = logging.getLogger()6logger.setLevel(logging.INFO)78ec2 = boto3.client('ec2')9route53 = boto3.client('route53')1011client_vpn_endpoint_id = environ.get('CLIENT_VPN_ENDPOINT_ID')12if client_vpn_endpoint_id == None:13    logger.error('Environment variable "CLIENT_VPN_ENDPOINT_ID" must be set')14    raise Exception(15        'Environment variable "CLIENT_VPN_ENDPOINT_ID" must be set')1617hosted_zone_id = environ.get('HOSTED_ZONE_ID')18if hosted_zone_id == None:19    logger.error('Environment variable "HOSTED_ZONE_ID" must be set')20    raise Exception(21        'Environment variable "HOSTED_ZONE_ID" must be set')2223hosted_zone_name = environ.get('HOSTED_ZONE_NAME')24if hosted_zone_name == None:25    logger.error('Environment variable "HOSTED_ZONE_NAME" must be set')26    raise Exception(27        'Environment variable "HOSTED_ZONE_NAME" must be set')282930def lambda_handler(event, context):31    paginator = ec2.get_paginator('describe_client_vpn_connections')32    page_iterator = paginator.paginate(33        ClientVpnEndpointId=client_vpn_endpoint_id34    )35    connections = []36    for page in page_iterator:37        connections += page['Connections']3839    clients = {}40    for connection in connections:41        # Ignore connections that aren't in active status42        if connection['Status']['Code'] != 'active':43            continue44        common_name = connection['CommonName']45        dns_name = "{}.{}.".format(common_name, hosted_zone_name).lower()46        # If a connection with this Common Name already exists, overwrite it if this one started earlier47        if dns_name in clients:48            if connection['ConnectionEstablishedTime'] < clients[dns_name]['ConnectionEstablishedTime']:49                clients[dns_name] = connection50        else:51            clients[dns_name] = connection5253    logger.debug(clients)5455    paginator = route53.get_paginator('list_resource_record_sets')56    page_iterator = paginator.paginate(57        HostedZoneId=hosted_zone_id58    )59    record_sets = []60    for page in page_iterator:61        record_sets += page['ResourceRecordSets']6263    logger.debug(record_sets)6465    # Find all existing record sets that don't have a corresponding client66    sets_to_delete = []67    for record_set in record_sets:68        if record_set['Name'] not in clients and record_set['Type'] == 'A':69            sets_to_delete.append({70                'Action': 'DELETE',71                'ResourceRecordSet': record_set72            })7374    existing_clients = {record_set['Name']: record_set for record_set in record_sets}7576    sets_to_upsert = []77    # Loop through all connected clients78    for dns_name in clients:79        # Every client gets an upserted record if there isn't already a record or the existing record doesn't match the IP80        if dns_name not in existing_clients or existing_clients[dns_name]['ResourceRecords'][0]['Value'] != clients[dns_name]['ClientIp']:81            sets_to_upsert.append({82                'Action': 'UPSERT',83                'ResourceRecordSet': {84                    'Name': dns_name,85                    'Type': 'A',86                    'TTL': 0,87                    'ResourceRecords': [88                        {89                            'Value': clients[dns_name]['ClientIp']90                        },91                    ]92                }93            })9495    sets_to_change = sets_to_delete + sets_to_upsert9697    if len(sets_to_change) > 0:98        logger.info("Changing sets: {}".format(sets_to_change))99        response = route53.change_resource_record_sets(100            HostedZoneId=hosted_zone_id,101            ChangeBatch={102                'Changes': sets_to_change103            }104        )
...

lambda_function.py

Source:lambda_function.py

...33    except URLError as e:34        logger.error("Server connection failed: %s", e.reason)35    return 036rout353client = boto3.client('route53')37response = client.describe_client_vpn_connections(38    ClientVpnEndpointId=Clientvpnendpoint39)40print(response)41def lambda_handler(event, context):42    length = len(response["Connections"])43    print("length", length)44    client_IpAddress = []45    commonName = []46    for i in range(length):47        if (response["Connections"][i]["Status"]["Code"]) == "active":48            client_IpAddress = response["Connections"][i]["ClientIp"]49            commonName = response["Connections"][i]["CommonName"]50            #print(client_IpAddress, commonName)51            subdomain = Sub_domain_name...

app.py

Source:app.py

...11  try:12    if event['AssociateSubnets'] == 'false':13      logger.info(f"terminating current vpn sessions to {event['ClientVpnEndpointId']}")14      ec2 = boto3.client('ec2')15      resp = ec2.describe_client_vpn_connections(ClientVpnEndpointId=event['ClientVpnEndpointId'])16      for conn in resp['Connections']:17        if conn['Status']['Code'] == 'active':18          ec2.terminate_client_vpn_connections(19            ClientVpnEndpointId=event['ClientVpnEndpointId'],20            ConnectionId=conn['ConnectionId']21          )22          logger.info(f"terminated session {conn['ConnectionId']}")23    client = boto3.client('cloudformation')24    logger.info(client.update_stack(25      StackName=event['StackName'],26      UsePreviousTemplate=True,27      Capabilities=['CAPABILITY_IAM'],28      Parameters=[29        {...

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