前提条件：
系统类型：centos7.9
已经部署好Docker环境
适用于监控Linux系统
一、导入docker镜像(consul、grafana、prometheus、ansible)
点击查看代码
consul、grafana、prometheus 使用save-load
docker load -i consul.tar
docker load -i grafana.tar
docker load -i prom.tar
ansible的使用export-import
docker import ansible.tar ansible:v1 #ansible:v1 导入后的镜像名字和标签.
二、启动容器
1、在启动容器时你可以先为每个容器创建好volumes。
创建卷：
点击查看代码
docker volume create consul
docker volume create prometheus
docker volume create ansible
docker volume create grafana
启动容器：
docker run --name=grafana -itd -p 3000:3000 -v grafana:/usr/share/grafana grafana/grafana:8.2.3
docker run --name consul -d -v consul:/consul -p 8500:8500 consul:1.10.3
docker run --name prometheus -d -p 9090:9090 --privileged=true -v prometheus:/etc/prometheus prom/prometheus:v2.31.0
ansible启动时要指定command,加top命令是为了让容器一直保持运行状态。
docker run -itd --name=ansible -v ansible:/etc/ansible ansible:v1 top
2、不创建卷直接启动容器：
点击查看代码
docker run --name=grafana -itd grafana/grafana:8.2.3
docker run --name consul -d -p 8500:8500 consul:1.10.3
docker run --name prometheus -d -p 9090:9090 --privileged=true prom/prometheus:v2.31.0
ansible启动时要指定command,加top命令是为了让容器一直保持运行状态。
docker run -itd --name=ansible ansible:v1 top
三、批量部署node-exporter
1、部署完成后进入ansible容器：
docker exec -it ansible /bin/sh
进入ansible目录：
cd /etc/ansible
ls会看到以下文件：
点击查看代码
sh-4.2# ls
ansible.cfg hosts node-exporter.service node-exporter.yml node_exporter ping.yml roles
2、文件介绍：
node-exporter.service，此文件是将node-exporter 服务注册为systemctl工具管理。
点击查看代码
sh-4.2# cat node-exporter.service
[Unit]
Description=node-exporter
[Service]
PrivateTmp=true
Restart=always
Type=simple
ExecStart=/usr/local/bin/node_exporter
ExecStop=/bin/kill -s QUIT $MAINPID
ExecReload=/bin/kill -s HUP $MAINPID
[Install]
WantedBy=multi-user.target
node-exporter.yml此文件是ansible批量安装node-exporter的脚本文件：
点击查看代码
sh-4.2# cat node-exporter.yml
---
- hosts: linux
tasks:
- name: copy Node Exporter
copy:
src: /etc/ansible/node_exporter
dest: /usr/local/bin/
mode: 0755
- name: copy Node Exporter.service
copy:
src: /etc/ansible/node-exporter.service
dest: /etc/systemd/system/
force: yes
mode: 0755
- name: Enable Node Exporter Service
systemd:
enabled: true
name: node-exporter
state: started
- name: Open Node Exporter Port
firewalld:
immediate: true
permanent: true
port: 9100/tcp
state: enabled
node_exporter 此文件是node-exporter的可执行文件。
hosts 此文件是要安装node-exporter的主机列表文件。
点击查看代码
sh-4.2# cat hosts
[linux]
172.16.4.102
[linux:vars]
ansible_password="P@ssw0rd"
执行批量安装命令：
在/etc/ansible目录中执行：
点击查看代码
ansible-playbook node-exporter.yml
注：prometheus的配置文件内容，可以根据自己的需求更改。
点击查看代码
/etc/prometheus $ cat 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: ["10.16.0.41:9090"]
- job_name: "consul-node-exporter"
consul_sd_configs:
- server: 10.16.0.41:8500
scrape_interval: 5s
relabel_configs:
- source_labels: ['__meta_consul_tags']
regex: .*node.*
action: keep
- regex: __meta_consul_service_metadata_(.+)
action: labelmap
- job_name: "consul-docker-exporter"
consul_sd_configs:
- server: 10.16.0.41:8500
scrape_interval: 5s
relabel_configs:
- source_labels: ['__meta_consul_tags']
regex: .*docker.*
action: keep
- regex: __meta_consul_service_metadata_(.+)
action: labelmap
四、客户端注册
点击查看代码
curl -X PUT -d '{"id": "node-exporter","name": "node-exporter-172.16.4.40","address": "172.16.4.40","port": 9100,"tags": ["consul"],"checks": [{"http": "http://172.16.4.40:9100/metrics","interval": "5s"}]}' http://172.16.4.40:8500/v1/agent/service/register
五、拓展：
附上批量注册脚本：适用于连续的IP段
点击查看代码
#!/usr/bin/env bash
for i in `seq 1 57` #取值1到57
do
instance_id="172.16.1.$i"
service_name="172.16.1.$i"
ip="10.14.1.$i"
port=9100
curl -X PUT -d '{"id": "'"$instance_id"'","name": "'"$service_name"'","address": "'"$ip"'","port": '"$port"',"tags": ["'"$service_name"'"],"checks": [{"http": "http://'"$ip"':'"$port"'/metrics","interval": "5s"}]}' http://172.16.1.1:8500/v1/agent/service/register
done