使用docker-compose快速搭建prometheus 使用docker-compose快速搭建prome

docker-compose.yml配置如下

version: '3.7'networks: monitor: driver: bridgeservices: prometheus: image: prom/prometheus container_name: prometheus hostname: prometheus restart: always volumes: - /data/conf/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml - /data/conf/prometheus/node_down.yml:/etc/prometheus/node_down.yml ports: - "9090:9090" networks: - monitoralertmanager: image: prom/alertmanager container_name: alertmanager hostname: alertmanager restart: always volumes: - /data/conf/prometheus/alertmanager.yml:/etc/alertmanager/alertmanager.yml ports: - "9093:9093" networks: - monitorgrafana: image: grafana/grafana container_name: grafana hostname: grafana restart: always ports: - "3000:3000" networks: - monitornode-exporter: image: quay.io/prometheus/node-exporter container_name: node-exporter hostname: node-exporter restart: always ports: - "9100:9100" networks: - monitorcadvisor: image: google/cadvisor:latest container_name: cadvisor hostname: cadvisor restart: always volumes: - /:/rootfs:ro - /var/run:/var/run:rw - /sys:/sys:ro - /data/docker_containers/:/var/lib/docker:ro ports: - "8080:8080" networks: - monitor

特别注意下面这个映射关系，/data/docker_containers/这个目录，是我修改了的docker存储目录

/data/docker_containers/:/var/lib/docker:ro

centos7在/usr/lib/systemd/system/docker.service文件里

ExecStart=/usr/bin/dockerd --graph=/data/docker_containers -H fd:// --containerd=/run/containerd/containerd.sock

prometheus.yml文件内容：

# 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: ['172.1.5.220:9093'] # - alertmanager:9093# Load rules once and periodically evaluate them according to the global 'evaluation_interval'. rule_files: - "node_down.yml" # - "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=` to any timeseries scraped from this config. - job_name: 'prometheus' static_configs: - targets: ['172.1.5.220:9090']- job_name: 'cadvisor' static_configs: - targets: ['172.1.5.220:8080']- job_name: 'node' scrape_interval: 8s static_configs: - targets: ['172.1.5.220:9100']

node_down.yml文件内容：

groups: - name: node_down rules: - alert: InstanceDown expr: up == 0 for: 1m labels: user: test annotations: summary: "Instance {{ $labels.instance }} down" description: "{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 1 minutes."

alertmanager.yml文件内容，即配置自己的邮件服务器，和接收人邮箱，各位对应修改即可

global: smtp_smarthost: 'smtp.xxx.com:25' smtp_from: 'user@xxx.com' smtp_auth_username: 'user@xxx.com' smtp_auth_password: 'pwd123456' smtp_require_tls: falseroute: group_by: ['alertname'] group_wait: 10s group_interval: 10s repeat_interval: 10m receiver: live-monitoringreceivers: - name: 'live-monitoring' email_configs: - to: 'xxx@qq.com'

把容器跑起来后，通过http://172.1.5.220:9090/targets
即可查看状态

文章图片
状态图
从图中可以看出当前为UP状态（健康状态），一开始，全是DOWN状态的，跟防火墙设置有关

[root@172-1-5-220 ~]# setenforce 0 [root@172-1-5-220 ~]# firewall-cmd --zone=public --list-ports[root@172-1-5-220 ~]# firewall-cmd --zone=public --add-port=9100/tcp --permanent success [root@172-1-5-220 ~]# firewall-cmd --zone=public --add-port=9090/tcp --permanent success [root@172-1-5-220 ~]# firewall-cmd --zone=public --add-port=9093/tcp --permanent success [root@172-1-5-220 ~]# firewall-cmd --zone=public --add-port=3000/tcp --permanent success [root@172-1-5-220 ~]# firewall-cmd --zone=public --add-port=8080/tcp --permanent success [root@172-1-5-220 ~]# firewall-cmd --reload success