基于docker 搭建Prometheus+Grafana

下载镜像包

docker pull prom/node-exporter
docker pull prom/prometheus
docker pull grafana/grafana

启动node-exporter

docker run -d -p 9100:9100 
  -v "/proc:/host/proc:ro" 
  -v "/sys:/host/sys:ro" 
  -v "/:/rootfs:ro" 
  --net="host" 
  prom/node-exporter

等待几秒钟，查看端口是否起来了

root@ubuntu:~# netstat -anpt
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1147/sshd       
tcp        0     36 192.168.91.132:22       192.168.91.1:63648      ESTABLISHED 2969/0          
tcp        0      0 192.168.91.132:22       192.168.91.1:63340      ESTABLISHED 1321/1          
tcp6       0      0 :::9100                 :::*                    LISTEN      3070/node_exporter

访问url：

http://IP:9100/metrics

效果如下：

这些都是收集到数据，有了它就可以做数据展示了

启动prometheus

新建目录prometheus，编辑配置文件prometheus.yml

mkdir /opt/prometheus
cd /opt/prometheus/
vim prometheus.yml

内容如下：

global:
  scrape_interval:     60s
  evaluation_interval: 60s
 
scrape_configs:
  - job_name: prometheus
    static_configs:
      - targets: ['localhost:9090']
        labels:
          instance: prometheus
 
  - job_name: linux
    static_configs:
      - targets: ['IP:9100']
        labels:
          instance: localhost

注意：修改IP地址，这里的IP就是本机地址

启动prometheus

docker run  -d 
  -p 9090:9090 
  -v /opt/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml  
 --net='host' 
  prom/prometheus

等待几秒钟，查看端口状态

root@ubuntu:/opt/prometheus# netstat -anpt
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1147/sshd       
tcp        0     36 192.168.91.132:22       192.168.91.1:63648      ESTABLISHED 2969/0          
tcp        0      0 192.168.91.132:22       192.168.91.1:63340      ESTABLISHED 1321/1          
tcp6       0      0 :::9100                 :::*                    LISTEN      3070/node_exporter
tcp6       0      0 :::22                   :::*                    LISTEN      1147/sshd       
tcp6       0      0 :::9090                 :::*                    LISTEN      3336/docker-proxy

访问url：

http://ip:9090/graph

效果如下：

访问targets，url如下：

http://IP:9090/targets

效果如下：

如果状态没有UP起来，等待一会，就会UP了

启动grafana

新建空文件夹grafana-storage，用来存储数据

mkdir /opt/grafana-storage

设置权限

chmod 777 -R /opt/grafana-storage

因为grafana用户会在这个目录写入文件，直接设置777，比较简单粗暴！

启动grafana

docker run -d 
  -p 3000:3000 
  --name=grafana 
  -v /opt/grafana-storage:/var/lib/grafana 
 --net='host' 
  grafana/grafana

等待几秒钟，查看端口状态

root@ubuntu:/opt/prometheus# netstat -anpt
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1147/sshd       
tcp        0     36 192.168.91.132:22       192.168.91.1:63648      ESTABLISHED 2969/0          
tcp        0      0 192.168.91.132:22       192.168.91.1:63340      ESTABLISHED 1321/1          
tcp6       0      0 :::9100                 :::*                    LISTEN      3070/node_exporter
tcp6       0      0 :::22                   :::*                    LISTEN      1147/sshd       
tcp6       0      0 :::3000                 :::*                    LISTEN      3494/docker-proxy
tcp6       0      0 :::9090                 :::*                    LISTEN      3336/docker-proxy
tcp6       0      0 192.168.91.132:9100     172.17.0.2:55108        ESTABLISHED 3070/node_exporter

访问url：

http://IP:3000/

默认会先跳转到登录页面，默认的用户名和密码都是admin

 接下来监控mysql

下载镜像

docker pull prom/mysqld-exporter

 启动监控的数据库连接，容器创建的时候需要指定

docker run -d -p 9104:9104 -e DATA_SOURCE_NAME="root:password@(127.0.0.1:3306)/databaseName" prom/mysqld-exporter

 然后要在prometheus的配置文件prometheus.yml中添加响应配置信息

- job_name: mysql

static_configs:

- targets: ['172.20.4.247:9104'] #将localhost改为本机IP

labels:

instance: mysql

 注意缩进，你可以复制上上边的改一下就好

可以了！