Prometheus安装部署

一、介绍

Prometheus 是一个开源的监控软件。非常适合用来监控docker容器，k8s标配。
优点特性看官方文档吧：https://prometheus.io/docs

二、安装部署

1、二进制包部署

下载地址：https://prometheus.io/download/

[root@iZ8vb623n6mbyx9d66w0a9Z tmp]# tar -xf prometheus-2.40.2.linux-amd64.tar.gz  -C /usr/local/
[root@iZ8vb623n6mbyx9d66w0a9Z tmp]# mv /usr/local/prometheus-2.40.2.linux-amd64 /usr/local/prometheus

启动脚本

[root@iZ8vb623n6mbyx9d66w0a9Z tmp]# vim /usr/lib/systemd/system/prometheus.service
[Unit]
Description=prometheus
After=network.target
After=syslog.target

[Service]
ExecStart=/usr/local/prometheus/prometheus --config.file=/usr/local/prometheus/prometheus.yml

[Install]
WantedBy=multi-user.target

启动服务

[root@iZ8vb623n6mbyx9d66w0a9Z tmp]# systemctl daemon-reload 
[root@iZ8vb623n6mbyx9d66w0a9Z tmp]# systemctl start prometheus
[root@iZ8vb623n6mbyx9d66w0a9Z tmp]# systemctl enable prometheus
Created symlink from /etc/systemd/system/multi-user.target.wants/prometheus.service to /usr/lib/systemd/system/prometheus.service.
[root@iZ8vb623n6mbyx9d66w0a9Z tmp]# systemctl status prometheus
● prometheus.service - prometheus
   Loaded: loaded (/usr/lib/systemd/system/prometheus.service; enabled; vendor preset: disabled)
   Active: active (running) since Tue 2022-11-22 17:21:25 CST; 20s ago
 Main PID: 12720 (prometheus)
   CGroup: /system.slice/prometheus.service
           └─12720 /usr/local/prometheus/prometheus --config.file=/usr/local/prometheus/prometheus.yml

Nov 22 17:21:25 iZ8vb623n6mbyx9d66w0a9Z prometheus[12720]: ts=2022-11-22T09:21:25.586Z caller=head.go:606 level=info….149µs
Nov 22 17:21:25 iZ8vb623n6mbyx9d66w0a9Z prometheus[12720]: ts=2022-11-22T09:21:25.586Z caller=head.go:612 level=info...ile"
Nov 22 17:21:25 iZ8vb623n6mbyx9d66w0a9Z prometheus[12720]: ts=2022-11-22T09:21:25.586Z caller=head.go:683 level=info...nt=0
Nov 22 17:21:25 iZ8vb623n6mbyx9d66w0a9Z prometheus[12720]: ts=2022-11-22T09:21:25.586Z caller=head.go:720 level=info….342µs
Nov 22 17:21:25 iZ8vb623n6mbyx9d66w0a9Z prometheus[12720]: ts=2022-11-22T09:21:25.587Z caller=main.go:1014 level=inf...AGIC
Nov 22 17:21:25 iZ8vb623n6mbyx9d66w0a9Z prometheus[12720]: ts=2022-11-22T09:21:25.587Z caller=main.go:1017 level=inf...ted"
Nov 22 17:21:25 iZ8vb623n6mbyx9d66w0a9Z prometheus[12720]: ts=2022-11-22T09:21:25.587Z caller=main.go:1197 level=inf....yml
Nov 22 17:21:25 iZ8vb623n6mbyx9d66w0a9Z prometheus[12720]: ts=2022-11-22T09:21:25.587Z caller=main.go:1234 level=info ms…µs
Nov 22 17:21:25 iZ8vb623n6mbyx9d66w0a9Z prometheus[12720]: ts=2022-11-22T09:21:25.587Z caller=main.go:978 level=info...ts."
Nov 22 17:21:25 iZ8vb623n6mbyx9d66w0a9Z prometheus[12720]: ts=2022-11-22T09:21:25.588Z caller=manager.go:944 level=i......"
Hint: Some lines were ellipsized, use -l to show in full.

[root@devops ~]# cat /usr/local/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"]