Prometheus容器部署结合grafana画图

1. 拉取prometheus官方镜像

// 拉取镜像
[root@master ~]# docker pull prom/prometheus
Using default tag: latest
latest: Pulling from prom/prometheus
3cb635b06aa2: Already exists 
34f699df6fe0: Pull complete 
33d6c9635e0f: Pull complete 
f2af7323bed8: Pull complete 
c16675a6a294: Pull complete 
827843f6afe6: Pull complete 
3d272942eeaf: Pull complete 
7e785cfa34da: Pull complete 
05e324559e3b: Pull complete 
170620261a59: Pull complete 
ec35f5996032: Pull complete 
5509173eb708: Pull complete 
Digest: sha256:cb9817249c346d6cfadebe383ed3b3cd4c540f623db40c4ca00da2ada45259bb
Status: Downloaded newer image for prom/prometheus:latest
docker.io/prom/prometheus:latest

// 解压一个prometheus软件包获取配置文件
[root@master src]# pwd
/usr/src

[root@master src]# ls
debug  kernels  prometheus-2.31.1.linux-amd64.tar.gz

[root@master src]# tar xf prometheus-2.31.1.linux-amd64.tar.gz


// 为了方便操作做一个软链接
[root@master src]# ln -s prometheus-2.31.1.linux-amd64 prometheus

2. 官方镜像运行Prometheus容器并做端口映射和挂载卷

[root@master prometheus]# docker run -itd --name prometheus --restart always -p 9090:9090 -v /usr/src/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml prom/prometheus
e32d6acf5d97964f24d4ec925c31288b4b6f4fda526ef94b8c23a1360fa71482

// 浏览器访问测试

下载node_exporter地址

3. 下载包并解压

[root@node1 src]# pwd
/usr/src

[root@node1 src]# wget https://github.com/prometheus/node_exporter/releases/download/v1.3.1/node_exporter-1.3.1.linux-amd64.tar.gz

[root@node1 src]# tar xf node_exporter-1.3.1.linux-amd64.tar.gz  -C /usr/local/

// 做软链接为了方便操作
[root@node1 local]# ln -s node_exporter-1.3.1.linux-amd64 node_exporter

4. 写service使用systemd控制node_exporter

[root@node1 local]# vim /usr/lib/systemd/system/node_exporter.service
[Unit]
Description=Node Export server daemon
After=network.target 

[Service]
Type=simple
ExecStart=/usr/local/node_exporter/node_exporter
Restart=on-failure

[Install]
WantedBy=multi-user.targe

[root@node1 local]# systemctl daemon-reload
[root@node1 local]# systemctl enable --now node_exporter.service

[root@node1 local]# systemctl status node_exporter.service 
● node_exporter.service - Node Export server daemon
   Loaded: loaded (/usr/lib/systemd/system/node_exporter.service; enabled; vendor preset: disabled)
   Active: active (running) since Thu 2021-12-30 20:30:55 CST; 5s ago

[root@node1 local]# ss -anlt | grep 9100
LISTEN 0      128                *:9100             *:*

5. 修改配置文件

// 到master修改Prometheus.yml的配置文件

[root@master prometheus]# vim prometheus.yml
scrape_configs:
  # The job name is added as a label `job=` to any timeseries scraped from this config.
  - job_name: "prometheus"
  - job_name: "linux"  //添加此行，这个是监控的任务名

    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.

    static_configs:
      - targets: ["localhost:9090"]
      - targets: ["192.168.182.151:9100"]  //添加这一行，写node1上的IP和端口号

// 重启容器
[root@master prometheus]# docker restart prometheus
prometheus

6. 运行grafana容器

[root@master ~]# docker pull grafana/grafana  //拉取官方的grafana镜像
Using default tag: latest
latest: Pulling from grafana/grafana
97518928ae5f: Pull complete 
5b58818b7f48: Pull complete 
d9a64d9fd162: Pull complete 
4e368e1b924c: Pull complete 
867f7fdd92d9: Pull complete 
387c55415012: Pull complete 
07f94c8f51cd: Pull complete 
ce8cf00ff6aa: Pull complete 
e44858b5f948: Pull complete 
4000fdbdd2a3: Pull complete 
Digest: sha256:18d94ae734accd66bccf22daed7bdb20c6b99aa0f2c687eea3ce4275fe275062
Status: Downloaded newer image for grafana/grafana:latest
docker.io/grafana/grafana:latest

[root@master ~]# docker run -itd --name grafana -p 3000:3000 grafana/grafana
ef4b5c97f5e20b852e8bd804d634d51e3639d51c7abe9a819165178b173efdc4

// 用浏览器访问IP加3000端口号
用户名和密码均为admin，登录之后，系统会让你重新设置密码

// 点击这个

// 因为Prometheus和grafana在同一台主机，所以直接写localhost加Prometheus端口号就可以了

// 点击保存并测试

// 导入模板，我们可以去官网找想要的模板
grafana官网

// 点击load