環境
- CentOS7
- Prometheus v2.9.2
- Node exporter v0.18.0
Grafana v5.4.2 (d812109)
基本的にこれに従ってインストールすれば動く gihyo.jp
Node exporterのインストール
$ mkdir /usr/local/src/prometheus $ cd /usr/local/src/prometheus $ wget https://github.com/prometheus/node_exporter/releases/download/v0.18.0/node_exporter-0.18.0.linux-amd64.tar.gz $ tar zxvf node_exporter-0.18.0.linux-amd64.tar.gz $ sudo cp node_exporter-0.18.0.linux-amd64/node_exporter /sbin/ $ sudo chown root:root /sbin/node_exporter
$ sudo vi /etc/systemd/system/node-exporter.service [Unit] Description=Node Exporter for Prometheus After=network.target [Service] Type=simple User=prometheus ExecStart=/sbin/node_exporter PrivateTmp=true [Install] WantedBy=multi-user.target
$ sudo systemctl daemon-reload $ sudo systemctl start node-exporter.service
http://ipアドレス:9100/metricsにアクセスできる
アクセスできない場合は､firewallをチェックする
- ポート開放
$ firewall-cmd --add-port=9100/tcp --zone=public --permanent $ firewall-cmd --reload $ firewall-cmd --list-ports --zone=public
Prometheusのインストール
- Prometheusユーザの作成
$ sudo groupadd prometheus $ sudo useradd -d /var/lib/prometheus -g prometheus -s /bin/false -m prometheus
$ cd /usr/local/src/prometheus $ wget https://github.com/prometheus/prometheus/releases/download/v2.9.2/prometheus-2.9.2.linux-amd64.tar.gz $ tar xvzf prometheus-2.9.2.linux-amd64.tar.gz $ sudo cp -a prometheus-2.9.2.linux-amd64 /usr/local/src/prometheus/prometheus $ cd prometheus $ sudo cp prometheus promtool /sbin/ $ sudo chown root:root /sbin/prometheus /sbin/promtool $ sudo mkdir /etc/prometheus $ sudo mkdir /var/lib/prometheus/data $ sudo chown -R prometheus:prometheus /var/lib/prometheus/data $ sudo cp -r prometheus.yml consoles console_libraries /etc/prometheus/ $ sudo chown -R root:prometheus /etc/prometheus
$ sudo vi /etc/systemd/system/prometheus.service [Unit] Description=Prometheus Server Documentation=https://prometheus.io/docs/introduction/overview/ After=network-online.target [Service] User=prometheus ExecStart=/sbin/prometheus --config.file=/etc/prometheus/prometheus.yml --storage.tsdb.path=/var/lib/prometheus/data --web.console.templates=/etc/prometheus/consoles --web.console.libraries=/etc/prometheus/console_libraries ExecStop=/bin/kill -TERM ${MAINPID} ExecReload=/bin/kill -HUP ${MAINPID} [Install] WantedBy=multi-user.target
$ sudo vi /etc/prometheus/prometheus.yml
# my global config
global:
scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
# scrape_timeout is set to the global default (10s).
# Alertmanager configuration
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
rule_files:
# - "first_rules.yml"
# - "second_rules.yml"
# A scrape configuration containing exactly one endpoint to scrape:
# Here it's Prometheus itself.
scrape_configs:
# The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
- job_name: 'prometheus'
# metrics_path defaults to '/metrics'
# scheme defaults to 'http'.
static_configs:
- targets: ['localhost:9090']
- job_name: 'node'
file_sd_configs:
- files:
- /etc/prometheus/nodes.yml
$ sudo vi /etc/prometheus/nodes.yml
- targets:
- localhost:9100
labels:
role: prometheus
- ymlファイルのチェック
$ promtool check config /etc/prometheus/prometheus.yml
$ systemctl daemon-reload $ systemctl start prometheus.service $ systemctl status prometheus.service
Grafanaインストール
$ sudo yum install -y https://dl.grafana.com/oss/release/grafana-5.4.2-1.x86_64.rpm $ sudo systemctl start grafana-server.service
http://ipアドレス:3000にアクセス 初期ID･Passwordはadmin
- ダッシュボードにグラフを追加する
prometheusとgrafanaを入れたみたが、どうグラフとか出すといいのか? - Qiita
- ポートを開放した場合､誰でもアクセスできるので認証をかけるか､閉じる
$ firewall-cmd --remove-port=9090/tcp --zone=public --permanent $ firewall-cmd --remove-port=9100/tcp --zone=public --permanent $ firewall-cmd --reload
