schedule.py
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# import schedule
import os
import paramiko
from .models import MonitorHost, MonitorLog
import datetime
import math
import time
import uuid
import schedule
from app.util.component.RunContinuous import run_continuously
from app.util.component.PGUtil import PGUtil
import configure
def background_job():
try:
# print('Hello from the background thread')
# base_dir = os.getcwd()
# 命令文件
# cmd_filepath = os.path.join(base_dir, "file", "monitor.txt")
# cmd_file = open(cmd_filepath, "r")
# cmd = cmd_file.read()
# cmd_file.close()
# servers = [{'sid': 'src1', 'hostname': '172.26.99.160',
# 'username': 'monitor', 'password': '123456'},
# {'sid': 'src2', 'hostname': '172.26.60.100',
# 'username': 'root', 'password': 'DMap@123'}]
cur_time = datetime.datetime.now()
time_stamp = cur_time.strftime(
"%Y-%m-%d %H:%M:%S")
struct_time = time.strptime(time_stamp, "%Y-%m-%d %H:%M:%S")
d_minu_stamp = math.floor(struct_time.tm_min/10)
f_minu_stamp = math.floor(struct_time.tm_min/5)
sys_session = PGUtil.get_db_session(
configure.SQLALCHEMY_DATABASE_URI)
sys_ds = PGUtil.open_pg_data_source(
0, configure.SQLALCHEMY_DATABASE_URI)
hosts = sys_session.query(
MonitorHost.host, MonitorHost.user, MonitorHost.password, MonitorHost.type, MonitorHost.srcid)
servers = list(map(lambda host:
{'hostname': host.host, 'username': host.user,
'password': host.password, 'type': host.type,
'sid': host.srcid},
hosts))
for info in servers:
try:
# 业务逻辑
client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy)
client.connect(hostname=info['hostname'],
username=info['username'], password=info['password'])
# cpu
order = "top -b -n1 | sed -n '3p' | awk '{print $2}'"
stdin, stdout, stderr = client.exec_command(order)
cpu_usage = stdout.read().decode().split("\n")[0] # cpu使用率
# 内存
order = "free -m | sed -n '2p' | awk '{print $2}'"
stdin, stdout, stderr = client.exec_command(order)
totalMem = stdout.read().decode().split("\n")[0] # 总内存
order = "free -m | sed -n '2p' | awk '{print $7}'"
stdin, stdout, stderr = client.exec_command(order)
availableMem = stdout.read().decode().split("\n")[0] # 可用内存
order = "free -m | sed -n '2p' | awk '{print $3}'"
stdin, stdout, stderr = client.exec_command(order)
usedMem = stdout.read().decode().split("\n")[0] # 已用内存
# disk
order = "df -m | grep -v 'overlay\|Filesystem' | awk '{print $1,$2,$3}' | grep /dev | awk '{print $2}' | awk -v total=0 '{total+=$1}END{print total}'"
stdin, stdout, stderr = client.exec_command(order)
totalDisk = int(stdout.read().decode().split("\n")
[0]) # 总磁盘空间，单位Mb
order = "df -m | grep -v 'overlay\|Filesystem' | awk '{print $1,$2,$3}' | grep /dev | awk '{print $3}' | awk -v total=0 '{total+=$1}END{print total}'"
stdin, stdout, stderr = client.exec_command(order)
usedDisk = int(stdout.read().decode().split("\n")
[0]) # 已使用磁盘空间，单位Mb
# network
# 接收的字节数
rx_time = []
rx_bytes = []
tx_time = []
tx_bytes = []
# 接收的字节数
order = "ifconfig | grep RX | grep -v 'errors'| awk -v total=0 '{total+=$5}END{print total}'"
i = 0
while i < 2:
i = i+1
stdin, stdout, stderr = client.exec_command(order)
rx_time.append(time.time())
rx_bytes.append(int(stdout.read().decode().split("\n")[0]))
# 发送的字节数
order = "ifconfig | grep TX | grep -v 'errors'| awk -v total=0 '{total+=$5}END{print total}'"
i = 0
while i < 2:
i = i+1
stdin, stdout, stderr = client.exec_command(order)
tx_time.append(time.time())
tx_bytes.append(int(stdout.read().decode().split("\n")[0]))
log_guid = uuid.uuid1().__str__()
monitor_log = MonitorLog(guid=log_guid,
server=info["hostname"],
time_stamp=cur_time,
cpu_usage=float(
"%.2f" % float(cpu_usage)),
total_mem=totalMem,
available_mem=availableMem,
used_mem=usedMem,
disk=totalDisk,
disk_usage=usedDisk,
net_recv=float("%.2f" % float((
rx_bytes[1] - rx_bytes[0])/(rx_time[1]-rx_time[0]))),
net_send=float("%.2f" % float((
tx_bytes[1] - tx_bytes[0])/(tx_time[1]-tx_time[0]))),
date_stamp=cur_time.strftime(
"%Y-%m-%d"),
hour_stamp=struct_time.tm_hour,
minu_stamp=struct_time.tm_min,
d_minu_stamp=1 if d_minu_stamp == 0 else d_minu_stamp,
f_minu_stamp=1 if f_minu_stamp == 0 else f_minu_stamp)
sys_session.add(monitor_log)
sys_session.commit()
# for line in stdout:
# data = json.loads(line)
# # print(type(data))
# print(data)
except Exception as e:
sys_session.rollback()
except e:
print('发生了异常：', e)
finally:
client.close()
if sys_session:
sys_session.close()
if sys_ds:
sys_ds.Destroy()
# 记录30条记录
logs = []
def start_schedule():
# # 1分钟巡检一次
schedule.every(2).minutes.do(background_job)
# schedule.every(5).seconds.do(background_job)
stop_run_continuously = run_continuously()
# Do some other things...
# # Stop the background thread
# time.sleep(10)
# stop_run_continuously.set()
def format_value(value):
# 1024*1024*1024
if value > 1_073_741_824:
value = "{}GB".format(format(value/1_073_741_824, '.1f'))
elif value > 1_048_576:
# 1024*1024
value = "{}MB".format(format(value / 1_048_576, '.1f'))
elif value > 1024:
value = "{}KB".format(format(value / 1024.0, '.1f'))
else:
value = "{}B".format(format(value, '.1f'))
return value
def Mb_format_value(value):
if value > 1024:
value = "{}GB".format(format(value/1024, '.1f'))
else:
value = "{}MB".format(format(value, '.1f'))
return value