監控元件Prometheus安裝配置

prometheus是google borgmon監控系統的開源版本。伴隨著容器及kubernetes技術的興起，prometheus越來越受到大家的關注。

wget -c 

tar -zxvf prometheus-2.15.2.linux-amd64.tar.gz -c /usr/local/

./prometheus --config.file=prometheus.yml --storage.tsdb.path=data/

groupadd -r prometheus

useradd  -r -g prometheus -s /sbin/nologin prometheus

[unit]

description=prometheus monitor server
documentation=/usr/local/prometheus-2.15.2.linux-amd64/prometheus --help
documentation=
after=network.target 
[install]
wantedby=multi-user.target
[service]
user=prometheus
group=prometheus
type=******
execstart=/usr/local/prometheus-2.15.2.linux-amd64/prometheus --config.file=/usr/local/prometheus-2.15.2.linux-amd64/prometheus.yml --storage.tsdb.path=/usr/local/prometheus-2.15.2.linux-amd64/data/
restart=on-failure

systemctl daemon-reload

systemctl start prometheus

http://ipaddr:9090

prometheus支援多語言客戶端，可對核心業務進行埋點

一些主流應用可以通過官方或第三方的匯出器，來對這些應用做核心指標的收集例如redis和mysql等等

prometheus同樣也支援系統和網路相關的exporter方便伺服器資源的監控

wget -c 

tar -zxvf node_exporter-0.18.1.linux-amd64.tar.gz -c /usr/local
./node_exporter

- job_name: 'node_localhost'

static_configs:
- targets: ['localhost:9100']

systemctl restart prometheus

wget -c 

yum localinstall grafana-6.1.4-1.x86_64.rpm
systemctl start grafana-server

grafana首頁–>左上角圖示–>dashboard–>import

加入1-node-exporter-0-16-0-17-for-prometheus_rev7.json這個外掛程式

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