grafana+influxdb+python实现监控cpu、内存

grafana和influxdb下载rpm然后yum install *.rpm
influxdb有个web管理界面，不会操作的可以通过这个界面管理数据库，这个web的端口是8083
influxdb：
create database grafana
CREATE USER “grafana” WITH PASSWORD ‘grafana’
grafana：
数据源这部分的配置成功就可以产生图像
数据库地址:http://ip：8086（这个是influxdb的后端端口）
点击panel Title有个Edit可以为这个Panel Title配置一个数据源
数据源可以配置tags和fields，field配置出来显示的就是图形（注意：有些数据要选择合适selectors，不然不显示）
alias是上面线条的名字
python：
安装psutil和influxdb的模块
yum install python-pip -y
yum install gcc python-devel zlib-devel openssl-devel -y#这些安装完了pip install不会报错
pip install psutil
pip install influxdb
python获取信息的脚本

#!/usr/bin/python# -*- coding: UTF-8 -*-import threadimport timeimport socketimport psutilfrom influxdb import InfluxDBClientclient=InfluxDBClient('localhost',8086,'root',',','grafana')#获取本机IPdef get_ip():    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)    try:        # doesn't even have to be reachable        s.connect(('10.255.255.255', 0))        IP = s.getsockname()[0]    except:        IP = '127.0.0.1'    finally:        s.close()    return IPip = get_ip()#获取cpu信息def get_cpu(sec):    while True:        time.sleep(sec)        info=psutil.cpu_percent(0)        text=[            {                "measurement":"cpu_info",                "tags":{                           "host":ip                },                "fields":{                            "percent":info                }            }        ]        client.write_points(text)def get_memory(sec):    while True:        time.sleep(sec)        info=psutil.virtual_memory()        text=[            {                "measurement":"memory_info",                    "tags":{                           "host":ip                },                "fields":{                            "mem_percent":info.percent,                            "mem_used":info.used,                            "mem_free":info.free,                }            }        ]        client.write_points(text)def get_disk(sec):    while True:        time.sleep(sec)        info=psutil.disk_usage('/')        text=[            {                "measurement":"disk_info",                "tags":{                           "host":ip                },                "fields":{                            "disk_used":info.used,                            "disk_free":info.free,                            "disk_percent":info.percent,                }            }        ]        client.write_points(text)def get_network(sec):    while True:        time.sleep(sec)        info = psutil.net_io_counters(pernic=True)['ens192']        text=[            {                "measurement":"network_info",                "tags":{                           "host":ip                },                "fields":{                            "bytes_sent":info.bytes_sent,                            "bytes_recv":info.bytes_recv,                }             }        ]        client.write_points(text)   try:    thread.start_new_thread( get_cpu,(1,))except:    print "ERROR:cpu unable to start thread"try:    thread.start_new_thread( get_memory, (1,))except:    print "ERROR:mem_ory unable to start thread"try:    thread.start_new_thread( get_disk, (1,))except:    print "ERROR:disk unable to start thread"try:    thread.start_new_thread( get_network,(1,))except:    print "ERROR:net unable to start thread"while 1:    pass