安装步骤：
Prometheus Server(普罗米修斯监控主服务器 )
Node Exporter (收集Host硬件和操作系统信息)
cAdvisor (负责收集Host上运行的容器信息)
Grafana (展示普罗米修斯监控界面）

安装

docker run -d -p 9100:9100 \
-v "/proc:/host/proc" \
-v "/sys:/host/sys" \
-v "/:/rootfs" \
-v "/etc/localtime:/etc/localtime" \
prom/node-exporter \
--path.procfs /host/proc \
--path.sysfs /host/sys \
--collector.filesystem.ignored-mount-points "^/(sys|proc|dev|host|etc)($|/)"

查看运行状态

docker ps -a
CONTAINER ID   IMAGE                           COMMAND                  CREATED          STATUS         PORTS                    NAMES
ea6db78c4cfd   prom/node-exporter              "/bin/node_exporter …"   12 seconds ago   Up 9 seconds   0.0.0.0:9100->9100/tcp   gracious_babbage
06912e5628c9   synology/docviewer:1.3.0.0125   "sh -c 'while true; …"   7 months ago     Up 8 days                               synology_docviewer_2
76bfdfdefc04   synology/docviewer:1.3.0.0125   "sh -c 'while true; …"   7 months ago     Up 8 days                               synology_docviewer_1

访问查看统计信息

192.168.0.8:9100/metrics

增加到Prometheus配置文件中