Outlyer host network metrics plugin replacement

base.py

def check_netio():
    sys_path = '/rootfs/sys'  # change this to the directory your host sys is mounted to
    net_class_path = os.path.join(sys_path, 'class', 'net')
    metric_keys = {
        'bytes_sent': 'tx_bytes',
        'bytes_recv': 'rx_bytes',
        'packets_sent': 'tx_packets',
        'packets_recv': 'rx_packets',
        'errin': 'rx_errors',
        'errout': 'tx_errors',
        'dropin': 'rx_dropped',
        'dropout': 'tx_dropped',
    }
    net_excludes = ['teredo', 'isatap', 'loopback']
    net_map = {}
    for our_key, sys_key in metric_keys.iteritems():
        current_sum = 0
        for interface in os.listdir(net_class_path):
            if interface in net_excludes:
                continue
            stats_folder = os.path.join(net_class_path, interface, 'statistics')
            metric_file = os.path.join(stats_folder, sys_key)
            try:
                with open(metric_file, 'r') as stat_file:
                    stat = stat_file.read()
                stat_value = int(stat)
                net_map['network.' + interface.replace(' ', '_').lower() + '.' + our_key] = stat_value
                current_sum += stat_value
            except Exception:
                continue
            
        net_map['network.' + our_key] = current_sum
    return net_map