141 lines
4.0 KiB
Python
Executable File
141 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python3
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import time
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import paramiko
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import threading
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import yaml
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def string_to_float(data):
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return float(data.strip().split(' ', 2)[0].strip())
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def parse_top_string(data):
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rows = data.splitlines()
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load = rows[0].split('load average: ', 2)[1]
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cpu_data = rows[1].split(':', 2)[1].strip().split(',')
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cpu_percent = 100.0 - float(cpu_data[3].strip().split(' ', 2)[0].strip()) - float(cpu_data[7].strip().split(' ', 2)[0].strip())
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if (cpu_percent < 0):
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cpu_percent = 0
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ram_unit, ram_data = rows[2].split(':', 2)
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ram_factor = 1
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if ram_unit[0] == 'K':
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ram_factor = 1024 * 1024
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elif ram_unit[0] == 'M':
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ram_factor = 1024
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elif ram_unit[0] == 'G':
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ram_factor = 1
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ram_data = ram_data.strip().split(',')
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ram_total = float(ram_data[0].strip().split(' ', 2)[0].strip()) / ram_factor
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ram_free = float(ram_data[1].strip().split(' ', 2)[0].strip()) / ram_factor
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return load, cpu_percent, ram_total, ram_free
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class Host(threading.Thread):
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def __init__(self, host, port, host_length):
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threading.Thread.__init__(self)
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self.host = host
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self.port = port
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self.host_length = host_length
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self.status = 'none'
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self.row = ''
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def render_status(self):
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if self.status == 'none':
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return '[ .. ] '
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elif self.status == 'ok':
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return '[ \033[92mok\033[0m ] '
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elif self.status == 'fail':
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return '[\033[91mfail\033[0m] '
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def render_top(self):
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if self.status != 'ok':
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return ''
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stdin, stdout, stderr = self.client.exec_command('top -bn1 | grep "^top\\|^%Cpu\\|^.iB Mem"')
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stdin.close()
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data = stdout.read().decode('utf-8').strip()
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self.client.close()
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load, cpu_percent, ram_total, ram_free = parse_top_string(data)
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ram_used = ram_total - ram_free
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return load + ' (' + '{:3.1f}'.format(cpu_percent).rjust(5) + '%) ' + '{:3.1f}'.format(ram_used).rjust(5) + ' / ' + '{:3.1f}'.format(ram_total).rjust(5) + ' GiB (' + '{:3.1f}'.format(ram_used / ram_total * 100).rjust(5) + '%)'
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def render_row(self):
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self.row = self.render_status() + self.host.ljust(self.host_length + 3) + self.render_top()
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def run(self):
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try:
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self.status = 'none'
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self.render_row()
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self.client = paramiko.SSHClient()
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self.client.set_missing_host_key_policy(paramiko.MissingHostKeyPolicy())
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self.client.connect(self.host, port = self.port, username = 'root', timeout = 1)
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self.status = 'ok'
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except Exception as e:
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#print(e)
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self.status = 'fail'
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self.render_row()
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def read_config():
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with open('config.yaml', 'r') as stream:
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return yaml.safe_load(stream)
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def main():
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config = read_config()
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hosts = []
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host_length = 0
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for host in config['hosts']:
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if len(host['host']) > host_length:
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host_length = len(host['host'])
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print('Host'.center(7 + host_length + 3) + 'Load'.center(25) + ' ' + 'Ram Usage'.center(26))
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config_hosts = config['hosts']
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config_hosts.sort(key=lambda x: x['host'])
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for i, host in enumerate(config_hosts):
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for user_name, user_data in host['users'].items():
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if user_name != 'root':
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continue
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if not 'port' in host:
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host['port'] = 22
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hosts.append(Host(host['host'], host['port'] or 22, host_length))
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for host in hosts:
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host.start()
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end = False
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first = True
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while True:
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screen = []
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for host in hosts:
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screen.append(host.row)
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if first:
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first = False
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else:
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print('\033[' + str(len(screen)) + 'F', end = '')
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print('\n'.join(screen))
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if end:
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break
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states = []
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for host in hosts:
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states.append(not host.is_alive())
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if all(states):
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end = True
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time.sleep(0.1)
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if __name__ == '__main__':
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main()
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