一、使用cAdvisor（Container Advisor）收集正在運行的容器資源使用和性能信息。
https://github.com/google/cadvisor
運行單個cAdvisor來監控整個Docker主機，默認的監聽端口為8080
# docker run \ --volume=/:/rootfs:ro \ --volume=/var/run:/var/run:ro \ --volume=/sys:/sys:ro \ --volume=/var/lib/docker/:/var/lib/docker:ro \ --volume=/dev/disk/:/dev/disk:ro \ --publish=8080:8080 \ --detach=true \ --name=cadvisor \ google/cadvisor:latest # docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 736e45251dd4 google/cadvisor:latest "/usr/bin/cadvisor -…" 20 seconds ago Up 16 seconds 0.0.0.0:8080->8080/tcp cadvisor 64b6b784dcb0 tengine2.2:v2 "nginx -g 'daemon of…" 5 months ago Up 5 months 0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp nginx c864cd8e4f09 php55:v13 "php-fpm" 5 months ago Up 5 months 0.0.0.0:9000->9000/tcp php
查看metrics：
http://192.168.5.85:8080/metrics
二、修改prometheus配置文件
# vim /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. alerting: alertmanagers: - static_configs: - targets: # - alertmanager:9093 rule_files: # - "first_rules.yml" # - "second_rules.yml" scrape_configs: - job_name: 'prometheus' # metrics_path defaults to '/metrics' # scheme defaults to 'http'. static_configs: - targets: ['192.168.5.237:9090'] - job_name: 'node' file_sd_configs: - refresh_interval: 30s files: - "/usr/local/prometheus/sd_config/node*.yml" # 增加要監控的docker主機 - job_name: 'docker' static_configs: - targets: ['192.168.5.85:8080'] # 檢查配置文件 # /usr/local/prometheus/promtool check config /usr/local/prometheus/prometheus.yml Checking /usr/local/prometheus/prometheus.yml SUCCESS: 0 rule files found # 重啟服務 # systemctl restart prometheus.service
targets中已經能查到docker主機的信息了
三、配置Grafana圖表盤
修改名稱及數據源等信息后點擊import
能查到主機上所有運行容器的CPU、內存、和網絡的使用情況
