Example #1
0
 def test_remove_instance_from_dynamo_table(self):
     print('test_remove_instance_from_dynamo_table')
     ec2_resource = boto3.resource('ec2')
     ec2_linux_object, ec2_windows_object = generate_ec2(ec2_resource)
     dynamodb = boto3.resource('dynamodb')
     table = dynamo_create_instances_table(dynamodb)
     aws_services.put_instance_to_dynamo_table(ec2_linux_object, '1.1.1.1', 'on boarded')
     remove_linux = aws_services.remove_instance_from_dynamo_table(ec2_linux_object)
     remove_windows = aws_services.remove_instance_from_dynamo_table(ec2_windows_object)
     self.assertTrue(remove_linux)
     self.assertTrue(remove_windows)
     table.delete()
Example #2
0
 def test_put_instance_to_dynamo_table(self):
     print('test_put_instance_to_dynamo_table')
     ec2_resource = boto3.resource('ec2')
     ec2_linux_object, ec2_windows_object = generate_ec2(ec2_resource)
     dynamodb = boto3.resource('dynamodb')
     table = dynamo_create_instances_table(dynamodb)
     on_boarded = aws_services.put_instance_to_dynamo_table(ec2_linux_object, '1.1.1.1', 'on boarded')
     on_boarded_failed = aws_services.put_instance_to_dynamo_table(ec2_linux_object, '1.1.1.1', 'on board failed')
     delete_failed = aws_services.put_instance_to_dynamo_table(ec2_linux_object, '1.1.1.1', 'delete failed')
     self.assertTrue(on_boarded)
     self.assertTrue(on_boarded_failed)
     self.assertTrue(delete_failed)
     table.delete()
def create_instance(instanceId, instanceDetails, storeParametersClass, logName,
                    solutionAccountId, eventRegion, eventAccountId,
                    instanceAccountPassword):

    if instanceDetails[
            'platform'] == "windows":  # Windows machine return 'windows' all other return 'None'
        kp_processing.save_key_pair(instanceAccountPassword)
        instancePasswordData = get_instance_password_data(
            instanceId, solutionAccountId, eventRegion, eventAccountId)
        # decryptedPassword = convert_pem_to_password(instanceAccountPassword, instancePasswordData)
        rc, decryptedPassword = kp_processing.run_command_on_container([
            "echo",
            str.strip(instancePasswordData), "|", "base64", "--decode", "|",
            "openssl", "rsautl", "-decrypt", "-inkey", "/tmp/pemValue.pem"
        ], True)
        AWSAccountName = 'AWS.{0}.Windows'.format(instanceId)
        instanceKey = decryptedPassword
        platform = WINDOWS_PLATFORM
        instanceUsername = ADMINISTRATOR
        safeName = storeParametersClass.windowsSafeName
    else:
        ppkKey = kp_processing.convert_pem_to_ppk(instanceAccountPassword)
        if not ppkKey:
            raise Exception("Error on key conversion")
        # ppkKey contains \r\n on each row end, adding escape char '\'
        trimmedPPKKey = str(ppkKey).replace("\n", "\\n")
        instanceKey = trimmedPPKKey.replace("\r", "\\r")
        AWSAccountName = 'AWS.{0}.Unix'.format(instanceId)
        platform = UNIX_PLATFORM
        safeName = storeParametersClass.unixSafeName
        instanceUsername = get_OS_distribution_user(
            instanceDetails['image_description'])

    # Check if account already exist - in case exist - just add it to DynamoDB

    pvwaConnectionnumber, sessionGuid = aws_services.get_available_session_from_dynamo(
    )
    if not pvwaConnectionnumber:
        return
    sessionToken = pvwa_integration.logon_pvwa(
        storeParametersClass.vaultUsername, storeParametersClass.vaultPassword,
        storeParametersClass.pvwaURL, pvwaConnectionnumber)

    if not sessionToken:
        return

    searchAccountPattern = "{0},{1}".format(instanceDetails["address"],
                                            instanceUsername)
    existingInstanceAccountId = pvwa_api_calls.retrieve_accountId_from_account_name(
        sessionToken, searchAccountPattern, safeName, instanceId,
        storeParametersClass.pvwaURL)
    if existingInstanceAccountId:  # account already exist and managed on vault, no need to create it again
        print("Account already exists in vault")
        aws_services.put_instance_to_dynamo_table(instanceId,
                                                  instanceDetails['address'],
                                                  OnBoardStatus.OnBoarded,
                                                  "None", logName)
        return
    else:
        accountCreated, errorMessage = pvwa_api_calls.create_account_on_vault(
            sessionToken, AWSAccountName, instanceKey, storeParametersClass,
            platform, instanceDetails['address'], instanceId, instanceUsername,
            safeName)

        if accountCreated:
            # if account created, rotate the key immediately
            instanceAccountId = pvwa_api_calls.retrieve_accountId_from_account_name(
                sessionToken, searchAccountPattern, safeName, instanceId,
                storeParametersClass.pvwaURL)

            pvwa_api_calls.rotate_credentials_immediately(
                sessionToken, storeParametersClass.pvwaURL, instanceAccountId,
                instanceId)
            aws_services.put_instance_to_dynamo_table(
                instanceId, instanceDetails['address'],
                OnBoardStatus.OnBoarded, "None", logName)
        else:  # on board failed, add the error to the table
            aws_services.put_instance_to_dynamo_table(
                instanceId, instanceDetails['address'],
                OnBoardStatus.OnBoarded_Failed, errorMessage, logName)
    pvwa_integration.logoff_pvwa(storeParametersClass.pvwaURL, sessionToken)
    aws_services.release_session_on_dynamo(pvwaConnectionnumber, sessionGuid)
def elasticity_function(instance_id, action_type, event_account_id,
                        event_region, solution_account_id, log_name):
    try:
        ec2_object = aws_services.get_account_details(solution_account_id,
                                                      event_account_id,
                                                      event_region)
        instance_details = aws_services.get_ec2_details(
            instance_id, ec2_object, event_account_id)
        instance_data = aws_services.get_instance_data_from_dynamo_table(
            instance_id)
        if action_type == 'terminated':
            if not instance_data:
                logger.info(f"Item {instance_id} does not exist on DB")
                return None
            instance_status = instance_data["Status"]["S"]
            if instance_status == OnBoardStatus.on_boarded_failed:
                logger.error(
                    f"Item {instance_id} is in status OnBoard failed, removing from DynamoDB table"
                )
                aws_services.remove_instance_from_dynamo_table(instance_id)
                return None
        elif action_type == 'running':
            if not instance_details[
                    "address"]:  # In case querying AWS return empty address
                logger.error("Retrieving Instance Address from AWS failed.")
                return None
            if instance_data:
                instance_status = instance_data["Status"]["S"]
                if instance_status == OnBoardStatus.on_boarded:
                    logger.info(
                        f"Item {instance_id} already exists on DB, no need to add it to Vault"
                    )
                    return None
                elif instance_status == OnBoardStatus.on_boarded_failed:
                    logger.error(
                        f"Item {instance_id} exists with status 'OnBoard failed', adding to Vault"
                    )
                else:
                    logger.info(
                        f"Item {instance_id} does not exist on DB, adding to Vault"
                    )
        else:
            logger.info('Unknown instance state')
            return

        store_parameters_class = aws_services.get_params_from_param_store()
        if not store_parameters_class:
            return
        if store_parameters_class.aob_mode == 'Production':
            # Save PVWA Verification key in /tmp folder
            logger.info('Saving verification key')
            crt = open("/tmp/server.crt", "w+")
            crt.write(store_parameters_class.pvwa_verification_key)
            crt.close()
        pvwa_connection_number, session_guid = aws_services.get_session_from_dynamo(
        )
        if not pvwa_connection_number:
            return
        session_token = pvwa_integration_class.logon_pvwa(
            store_parameters_class.vault_username,
            store_parameters_class.vault_password,
            store_parameters_class.pvwa_url, pvwa_connection_number)
        if not session_token:
            return
        disconnect = False
        if action_type == 'terminated':
            logger.info(f'Detected termination of {instance_id}')
            instance_processing.delete_instance(instance_id, session_token,
                                                store_parameters_class,
                                                instance_data,
                                                instance_details)
        elif action_type == 'running':
            # get key pair
            logger.info('Retrieving account id where the key-pair is stored')
            # Retrieving the account id of the account where the instance keyPair is stored
            # AWS.<AWS Account>.<Event Region name>.<key pair name>
            key_pair_value_on_safe = f'AWS.{instance_details["aws_account_id"]}.{event_region}.{instance_details["key_name"]}'
            key_pair_account_id = pvwa_api_calls.check_if_kp_exists(
                session_token, key_pair_value_on_safe,
                store_parameters_class.key_pair_safe_name, instance_id,
                store_parameters_class.pvwa_url)
            if not key_pair_account_id:
                logger.error(f"Key Pair {key_pair_value_on_safe} does not exist in Safe " \
                             f"{store_parameters_class.key_pair_safe_name}")
                return
            instance_account_password = pvwa_api_calls.get_account_value(
                session_token, key_pair_account_id, instance_id,
                store_parameters_class.pvwa_url)
            if instance_account_password is False:
                return
            pvwa_integration_class.logoff_pvwa(store_parameters_class.pvwa_url,
                                               session_token)
            aws_services.release_session_on_dynamo(pvwa_connection_number,
                                                   session_guid)
            disconnect = True
            instance_processing.create_instance(instance_id, instance_details,
                                                store_parameters_class,
                                                log_name, solution_account_id,
                                                event_region, event_account_id,
                                                instance_account_password)
        else:
            logger.error('Unknown instance state')
            return

        if not disconnect:
            pvwa_integration_class.logoff_pvwa(store_parameters_class.pvwa_url,
                                               session_token)
            aws_services.release_session_on_dynamo(pvwa_connection_number,
                                                   session_guid)

    except Exception as e:
        logger.error(f"Unknown error occurred: {e}")
        if action_type == 'terminated':
            # put_instance_to_dynamo_table(instance_id, instance_details["address"]\
            # , OnBoardStatus.delete_failed, str(e), log_name)
            aws_services.update_instances_table_status(
                instance_id, OnBoardStatus.delete_failed, str(e))
        elif action_type == 'running':
            aws_services.put_instance_to_dynamo_table(
                instance_id, instance_details["address"],
                OnBoardStatus.on_boarded_failed, str(e), log_name)


# TODO: Retry mechanism?
        aws_services.release_session_on_dynamo(pvwa_connection_number,
                                               session_guid)
        return
Example #5
0
def create_instance(instanceId, session, instanceDetails, storeParametersClass, logName):
    # get key pair

    # Retrieving the account id of the account where the instance keyPair is stored
    try:
        currentSession = boto3.session.Session()
        awsRegionName = currentSession.region_name
    except Exception:
        print("AWS region name could not be retrieved")
        raise Exception("AWS region name could not be retrieved")
    # AWS.<AWS Account>.<Region name>.<key pair name>
    keyPairValueOnSafe = "AWS.{0}.{1}.{2}".format(instanceDetails["aws_account_id"], awsRegionName,
                                                  instanceDetails["key_name"])
    keyPairAccountId = pvwa_api_calls.retrieve_accountId_from_account_name(session, keyPairValueOnSafe,
                                                                           storeParametersClass.keyPairSafeName,
                                                                           instanceId,
                                                                           storeParametersClass.pvwaURL)
    if not keyPairAccountId:
        print("Key Pair '{0}' does not exist in safe '{1}'".format(keyPairValueOnSafe,
                                                                   storeParametersClass.keyPairSafeName))
        return
    instanceAccountPassword = pvwa_api_calls.get_account_value(session, keyPairAccountId, instanceId,
                                                               storeParametersClass.pvwaURL)
    if instanceAccountPassword is False:
        return

    if instanceDetails['platform'] == "windows":  # Windows machine return 'windows' all other return 'None'
        kp_processing.save_key_pair(instanceAccountPassword)
        instancePasswordData = get_instance_password_data(instanceId)
        # decryptedPassword = convert_pem_to_password(instanceAccountPassword, instancePasswordData)
        rc, decryptedPassword = kp_processing.run_command_on_container(
            ["echo", str.strip(instancePasswordData), "|", "base64", "--decode", "|", "openssl", "rsautl", "-decrypt",
             "-inkey", "/tmp/pemValue.pem"], True)
        AWSAccountName = 'AWS.{0}.Windows'.format(instanceId)
        instanceKey = decryptedPassword
        platform = WINDOWS_PLATFORM
        instanceUsername = ADMINISTRATOR
        safeName = storeParametersClass.windowsSafeName
    else:
        ppkKey = kp_processing.convert_pem_to_ppk(instanceAccountPassword)
        if not ppkKey:
            raise Exception("Error on key conversion")
        # ppkKey contains \r\n on each row end, adding escape char '\'
        trimmedPPKKey = str(ppkKey).replace("\n", "\\n")
        instanceKey = trimmedPPKKey.replace("\r", "\\r")
        AWSAccountName = 'AWS.{0}.Unix'.format(instanceId)
        platform = UNIX_PLATFORM
        safeName = storeParametersClass.unixSafeName
        instanceUsername = get_OS_distribution_user(instanceDetails['image_description'])

    # Check if account already exist - in case exist - just add it to DynamoDB

    searchAccountPattern = "{0},{1}".format(instanceDetails["address"], instanceUsername)
    existingInstanceAccountId = pvwa_api_calls.retrieve_accountId_from_account_name(session, searchAccountPattern,
                                                                                    safeName,
                                                                                    instanceId,
                                                                                    storeParametersClass.pvwaURL)
    if existingInstanceAccountId:  # account already exist and managed on vault, no need to create it again
        print("Account already exists in vault")
        aws_services.put_instance_to_dynamo_table(instanceId, instanceDetails['address'], OnBoardStatus.OnBoarded, "None", logName)
        return
    else:
        accountCreated, errorMessage = pvwa_api_calls.create_account_on_vault(session, AWSAccountName, instanceKey,
                                                                              storeParametersClass,
                                                                              platform, instanceDetails['address'],
                                                                              instanceId, instanceUsername, safeName)

        if accountCreated:
            # if account created, rotate the key immediately
            instanceAccountId = pvwa_api_calls.retrieve_accountId_from_account_name(session, searchAccountPattern,
                                                                                    safeName,
                                                                                    instanceId,
                                                                                    storeParametersClass.pvwaURL)

            pvwa_api_calls.rotate_credentials_immediately(session, storeParametersClass.pvwaURL, instanceAccountId,
                                                          instanceId)
            aws_services.put_instance_to_dynamo_table(instanceId, instanceDetails['address'], OnBoardStatus.OnBoarded, "None",
                                         logName)
        else:  # on board failed, add the error to the table
            aws_services.put_instance_to_dynamo_table(instanceId, instanceDetails['address'], OnBoardStatus.OnBoarded_Failed,
                                         errorMessage, logName)
Example #6
0
def lambda_handler(event, context):

    try:
        message = event["Records"][0]["Sns"]["Message"]
        data = json.loads(message)
    except Exception as e:
        print ("Error on retrieving Message Data from Event Message. Error: {0}".format(e))

    try:
        instance_arn = data["resources"][0]
    except Exception as e:
        print ("Error on retrieving instance_arn from Event Message. Error: {0}".format(e))

    try:
        instanceId = data["detail"]["instance-id"]
    except Exception as e:
        print ("Error on retrieving Instance Id from Event Message. Error: {0}".format(e))

    try:
        actionType = data["detail"]["state"]
    except Exception as e:
        print ("Error on retrieving Action Type from Event Message. Error: {0}".format(e))


    try:
        eventAccountId = data["account"]
    except Exception as e:
        print ("Error on retrieving Event Account Id from Event Message. Error: {0}".format(e))


    try:
        eventRegion = data["region"]
    except Exception as e:
        print ("Error on retrieving Event Region from Event Message. Error: {0}".format(e))


    logName = context.log_stream_name if context.log_stream_name else "None"

    try:
        solutionAccountId = context.invoked_function_arn.split(':')[4]
        instanceDetails = aws_services.get_ec2_details(instanceId, solutionAccountId, eventRegion, eventAccountId)

        instanceData = aws_services.get_instance_data_from_dynamo_table(instanceId)
        if actionType == 'terminated':
            if not instanceData:
                print('Item {0} does not exists on DB'.format(instanceId))
                return None
            else:
                instanceStatus = instanceData["Status"]["S"]
                if instanceStatus == OnBoardStatus.OnBoarded_Failed:
                    print("Item {0} is in status OnBoard failed, removing from DynamoDB table".format(instanceId))
                    aws_services.remove_instance_from_dynamo_table(instanceId)
                    return None
        elif actionType == 'running':
            if not instanceDetails["address"]:  # In case querying AWS return empty address
                print("Retrieving Instance address from AWS failed.")
                return None
            if instanceData:
                instanceStatus = instanceData["Status"]["S"]
                if instanceStatus == OnBoardStatus.OnBoarded:
                    print('Item: {0}, exists on DB, no need to add it to vault'.format(instanceId))
                    return None
                elif instanceStatus == OnBoardStatus.OnBoarded_Failed:
                    print("Item {0} exists with status 'OnBoard failed', adding to vault".format(instanceId))
                else:
                    print('Item {0} does not exists on DB, adding to vault'.format(instanceId))
        else:
            print('Unknown instance state')
            return

        storeParametersClass = aws_services.get_params_from_param_store()
        if not storeParametersClass:
            return
        pvwaConnectionnumber, sessionGuid = aws_services.get_available_session_from_dynamo()
        if not pvwaConnectionnumber:
            return
        sessionToken = pvwa_integration.logon_pvwa(storeParametersClass.vaultUsername,
                                                   storeParametersClass.vaultPassword,
                                                   storeParametersClass.pvwaURL, pvwaConnectionnumber)

        if not sessionToken:
            return
        disconnect = False
        if actionType == 'terminated':
            instance_processing.delete_instance(instanceId, sessionToken, storeParametersClass, instanceData, instanceDetails)
        elif actionType == 'running':
            # get key pair

            # Retrieving the account id of the account where the instance keyPair is stored
            # AWS.<AWS Account>.<Event Region name>.<key pair name>
            keyPairValueOnSafe = "AWS.{0}.{1}.{2}".format(instanceDetails["aws_account_id"], eventRegion,
                                                          instanceDetails["key_name"])
            keyPairAccountId = pvwa_api_calls.check_if_kp_exists(sessionToken, keyPairValueOnSafe,
                                                                                   storeParametersClass.keyPairSafeName,
                                                                                   instanceId,
                                                                                   storeParametersClass.pvwaURL)
            if not keyPairAccountId:
                print("Key Pair '{0}' does not exist in safe '{1}'".format(keyPairValueOnSafe,
                                                                           storeParametersClass.keyPairSafeName))
                return
            instanceAccountPassword = pvwa_api_calls.get_account_value(sessionToken, keyPairAccountId, instanceId,
                                                                       storeParametersClass.pvwaURL)
            if instanceAccountPassword is False:
                return
            pvwa_integration.logoff_pvwa(storeParametersClass.pvwaURL, sessionToken)
            aws_services.release_session_on_dynamo(pvwaConnectionnumber, sessionGuid)
            disconnect = True
            instance_processing.create_instance(instanceId, instanceDetails, storeParametersClass, logName, solutionAccountId, eventRegion, eventAccountId, instanceAccountPassword)
        else:
            print('Unknown instance state')
            return


        if not disconnect:
            pvwa_integration.logoff_pvwa(storeParametersClass.pvwaURL, sessionToken)
            aws_services.release_session_on_dynamo(pvwaConnectionnumber, sessionGuid)


    except Exception as e:
        print("Unknown error occurred:{0}".format(e))
        if actionType == 'terminated':
            # put_instance_to_dynamo_table(instanceId, instanceDetails["address"]\
            # , OnBoardStatus.Delete_Failed, str(e), logName)
            aws_services.update_instances_table_status(instanceId, OnBoardStatus.Delete_Failed, str(e))
        elif actionType == 'running':
            aws_services.put_instance_to_dynamo_table(instanceId, instanceDetails["address"], OnBoardStatus.OnBoarded_Failed, str(e),
                                         logName)
        # TODO: Retry mechanism?
        aws_services.release_session_on_dynamo(pvwaConnectionnumber, sessionGuid)
        return
Example #7
0
def create_instance(instance_id, instance_details, store_parameters_class,
                    log_name, solution_account_id, event_region,
                    event_account_id, instance_account_password):
    logger.trace(instance_id,
                 instance_details,
                 store_parameters_class,
                 log_name,
                 solution_account_id,
                 event_region,
                 event_account_id,
                 caller_name='create_instance')
    logger.info(f'Adding {instance_id} to AOB')
    if instance_details[
            'platform'] == "windows":  # Windows machine return 'windows' all other return 'None'
        logger.info('Windows platform detected')
        kp_processing.save_key_pair(instance_account_password)
        instance_password_data = get_instance_password_data(
            instance_id, solution_account_id, event_region, event_account_id)
        decrypted_password = kp_processing.decrypt_password(
            instance_password_data)
        aws_account_name = f'AWS.{instance_id}.Windows'
        instance_key = decrypted_password
        platform = WINDOWS_PLATFORM
        instance_username = ADMINISTRATOR
        safe_name = store_parameters_class.windows_safe_name
    else:
        logger.info('Linux\\Unix platform detected')
        ppk_key = kp_processing.convert_pem_to_ppk(instance_account_password)
        if not ppk_key:
            raise Exception("Error on key conversion")
        # ppk_key contains \r\n on each row end, adding escape char '\'
        trimmed_ppk_key = str(ppk_key).replace("\n", "\\n")
        instance_key = trimmed_ppk_key.replace("\r", "\\r")
        aws_account_name = f'AWS.{instance_id}.Unix'
        platform = UNIX_PLATFORM
        safe_name = store_parameters_class.unix_safe_name
        instance_username = get_os_distribution_user(
            instance_details['image_description'])

    # Check if account already exist - in case exist - just add it to DynamoDB
    print('pvwa_connection_number')
    pvwa_connection_number, session_guid = aws_services.get_session_from_dynamo(
    )
    if not pvwa_connection_number:
        return False
    session_token = pvwa_integration_class.logon_pvwa(
        store_parameters_class.vault_username,
        store_parameters_class.vault_password, store_parameters_class.pvwa_url,
        pvwa_connection_number)
    print('session_token')
    if not session_token:
        return False

    search_account_pattern = f"{instance_details['address']},{instance_username}"
    print('retrieve_account_id_from_account_name')
    existing_instance_account_id = pvwa_api_calls.retrieve_account_id_from_account_name(
        session_token, search_account_pattern, safe_name, instance_id,
        store_parameters_class.pvwa_url)
    if existing_instance_account_id:  # account already exist and managed on vault, no need to create it again
        logger.info("Account already exists in vault")
        aws_services.put_instance_to_dynamo_table(instance_id,
                                                  instance_details['address'],
                                                  OnBoardStatus.on_boarded,
                                                  "None", log_name)
        return False
    else:
        account_created, error_message = pvwa_api_calls.create_account_on_vault(
            session_token, aws_account_name, instance_key,
            store_parameters_class, platform, instance_details['address'],
            instance_id, instance_username, safe_name)
        if account_created:
            # if account created, rotate the key immediately
            instance_account_id = pvwa_api_calls.retrieve_account_id_from_account_name(
                session_token, search_account_pattern, safe_name, instance_id,
                store_parameters_class.pvwa_url)
            pvwa_api_calls.rotate_credentials_immediately(
                session_token, store_parameters_class.pvwa_url,
                instance_account_id, instance_id)
            aws_services.put_instance_to_dynamo_table(
                instance_id, instance_details['address'],
                OnBoardStatus.on_boarded, "None", log_name)
        else:  # on board failed, add the error to the table
            aws_services.put_instance_to_dynamo_table(
                instance_id, instance_details['address'],
                OnBoardStatus.on_boarded_failed, error_message, log_name)
    pvwa_integration_class.logoff_pvwa(store_parameters_class.pvwa_url,
                                       session_token)
    aws_services.release_session_on_dynamo(pvwa_connection_number,
                                           session_guid)
    return True
def lambda_handler(event, context):
    logName = context.log_stream_name if context.log_stream_name else "None"
    instanceId, actionType = event.split(";")
    try:
        instanceDetails = aws_services.get_ec2_details(instanceId, context)

        instanceData = aws_services.get_instance_data_from_dynamo_table(
            instanceId)
        if actionType == 'terminated':
            if not instanceData:
                print('Item {0} does not exists on DB'.format(instanceId))
                return None
            else:
                instanceStatus = instanceData["Status"]["S"]
                if instanceStatus == OnBoardStatus.OnBoarded_Failed:
                    print(
                        "Item {0} is in status OnBoard failed, removing from DynamoDB table"
                        .format(instanceId))
                    aws_services.remove_instance_from_dynamo_table(instanceId)
                    return None
        elif actionType == 'running':
            if not instanceDetails[
                    "address"]:  # In case querying AWS return empty address
                print("Retrieving Instance address from AWS failed.")
                return None
            if instanceData:
                instanceStatus = instanceData["Status"]["S"]
                if instanceStatus == OnBoardStatus.OnBoarded:
                    print(
                        'Item: {0}, exists on DB, no need to add it to vault'.
                        format(instanceId))
                    return None
                elif instanceStatus == OnBoardStatus.OnBoarded_Failed:
                    print(
                        "Item {0} exists with status 'OnBoard failed', adding to vault"
                        .format(instanceId))
                else:
                    print('Item {0} does not exists on DB, adding to vault'.
                          format(instanceId))
        else:
            print('Unknown instance state')
            return

        storeParametersClass = aws_services.get_params_from_param_store()
        if not storeParametersClass:
            return
        pvwaConnectionnumber, sessionGuid = aws_services.get_available_session_from_dynamo(
        )
        if not pvwaConnectionnumber:
            return
        sessionToken = pvwa_integration.logon_pvwa(
            storeParametersClass.vaultUsername,
            storeParametersClass.vaultPassword, storeParametersClass.pvwaURL,
            pvwaConnectionnumber)
        if not sessionToken:
            return
        if actionType == 'terminated':
            instance_processing.delete_instance(instanceId, sessionToken,
                                                storeParametersClass,
                                                instanceData, instanceDetails)
        elif actionType == 'running':
            instance_processing.create_instance(instanceId, sessionToken,
                                                instanceDetails,
                                                storeParametersClass, logName)
        else:
            print('Unknown instance state')
            return

        pvwa_integration.logoff_pvwa(storeParametersClass.pvwaURL,
                                     sessionToken)
        aws_services.release_session_on_dynamo(pvwaConnectionnumber,
                                               sessionGuid)

    except Exception as e:
        print("Unknown error occurred:{0}".format(e))
        if actionType == 'terminated':
            # put_instance_to_dynamo_table(instanceId, instanceDetails["address"]\
            # , OnBoardStatus.Delete_Failed, str(e), logName)
            aws_services.update_instances_table_status(
                instanceId, OnBoardStatus.Delete_Failed, str(e))
        elif actionType == 'running':
            aws_services.put_instance_to_dynamo_table(
                instanceId, instanceDetails["address"],
                OnBoardStatus.OnBoarded_Failed, str(e), logName)
        # TODO: Retry mechanism?
        aws_services.release_session_on_dynamo(pvwaConnectionnumber,
                                               sessionGuid)
        return