一、telegraf搭建
通过上一篇prometheus telegraf grafana监控学习(一)已经启动了prometheus，那么现在我们需要在被监控机器上部署telegraf。
解压telegraf
被监控机器上创建/opt/monitor/文件夹并将telegraf安装包解压
代码语言：javascript复制tar xvf telegraf-1.11.1_linux_amd64.tar.gz修改配置文件
代码语言：javascript复制[root@bigdata3 telegraf]# pwd
/opt/monitor/telegraf/etc/telegraf
[root@bigdata3 telegraf]# cp telegraf.conf telegraf.conf.bak可清空原配置，拷贝下方配置
代码语言：javascript复制vi /opt/telegraf/etc/telegraf/telegraf.conf
[global_tags]
dc = "host-test" #切记此dc
[agent]
interval = "60s"
round_interval = true
metric_batch_size = 1000
metric_buffer_limit = 10000
collection_jitter = "0s"
flush_interval = "10s"
flush_jitter = "0s"
precision = ""
debug = false
quiet = false
logfile = "/opt/monitor/telegraf/logs/telegraf.log" #日志目录
hostname = ""
omit_hostname = false
[[outputs.prometheus_client]]
listen = ":9275"
[[aggregators.histogram]]
period = "60s"
drop_original = false
[[aggregators.histogram.config]]
buckets = [0.0, 10.0, 20.0, 30.0, 40.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0]
measurement_name = "cpu"
fields = ["usage_user","usage_idle"]
[[aggregators.histogram.config]]
buckets = [0.0, 10.0, 20.0, 30.0, 40.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0]
measurement_name = "mem"
fields = ["used_percent","available_percent"]
[[aggregators.histogram.config]]
buckets = [0.0, 10.0, 20.0, 30.0, 40.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0, 120.0, 150.0, 200.0, 300.0]
measurement_name = "system"
fields = ["load5"]
[[aggregators.histogram.config]]
buckets = [0.0, 100.0, 200.0, 300.0, 400.0, 500.0, 600.0, 700.0, 800.0, 900.0, 1000.0, 1200.0, 1500.0, 2000.0, 3000.0]
measurement_name = "processes"
fields = ["total_threads","total"]
[[inputs.cpu]]
percpu = true
totalcpu = true
collect_cpu_time = false
report_active = false
[[inputs.disk]]
ignore_fs = ["/","/home/*","/home","/mnt/data*","/data*","/mnt/sata*","/mnt/sd*"]
[[inputs.diskio]]
[[inputs.kernel]]
[[inputs.mem]]
[[inputs.net]]
[[inputs.netstat]]
[[inputs.processes]]
[[inputs.swap]]
[[inputs.system]]
创建启动脚本
代码语言：javascript复制vi /usr/lib/systemd/system/telegraf.service
[Unit]
Description=The plugin-driven server agent for reporting metrics into InfluxDB
Documentation=https://github.com/influxdata/telegraf
After=network.target
[Service]
EnvironmentFile=-/opt/monitor/telegraf/etc/telegraf
User=telegraf
ExecStart=/opt/monitor/telegraf/usr/bin/telegraf -config=/opt/monitor/telegraf/etc/telegraf/telegraf.conf $TELEGRAF_OPTS
ExecReload=/bin/kill -HUP $MAINPID
Restart=on-failure
RestartForceExitStatus=SIGPIPE
KillMode=control-group
[Install]
WantedBy=multi-user.target添加进程账号
代码语言：javascript复制useradd telegraf
echo "telegraf" | passwd --stdin telegraf更改目录权限
代码语言：javascript复制chown -R telegraf:telegraf /opt/telegraf启动telegraf
代码语言：javascript复制systemctl start telegraf接下来去prometheus页面进行验证
