docker运行prometheus 监控mysql

安装docker

 

配置阿里云Docker Yum源
[root@xingdian ~]# yum install -y yum-utils device-mapper-persistent-data lvm2 git
[root@xingdian ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
安装Docker新版本（比如Docker 2010.2)：
[root@xingdian ~]# yum install docker-ce-20.10.2.ce -y
或者
[root@xingdian ~]# yum install docker-ce -y
启动Docker服务
[root@xingdian ~]# systemctl enable docker
[root@xingdian ~]# systemctl start docker
查看docker版本状态
[root@xingdian ~]# docker -v
Docker version 19.03.12, build 48a66213fe
查看docker运行状态：
[root@xingdian ~]# docker info
Client:
Debug Mode: false
Server:
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 3
Server Version: 19.03.12
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 7ad184331fa3e55e52b890ea95e65ba581ae3429
runc version: dc9208a3303feef5b3839f4323d9beb36df0a9dd
init version: fec3683
Security Options:
seccomp
Profile: default
Kernel Version: 3.10.0-1062.12.1.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 7.637GiB
Name: xingdian ID:DW7V:VN63:7P5F:X36D:UPXA:WSXK:NVXU:FG4E:UIKY:ISIZ:AVW3:3RXT
Docker Root Dir: /var/lib/docker
Debug Mode: false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
方法 2：配置镜像加速器
[root@xuegod63 ~]# tee /etc/docker/daemon.json << 'EOF'
{
"registry-mirrors":["https://rsbud4vc.mirror.aliyuncs.com"]
}
EOF
重启 docker 服务使配置生效
[root@xuegod63 ~]# systemctl daemon-reload && systemctl restart docker

prometheus安装

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://192.168.91.132:9100/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: ['192.168.91.132:9100']
        labels:
          instance: localhost

注意：修改IP地址，这里的192.168.91.132就是本机地址

启动prometheus

docker run  -d 
  -p 9090:9090 
  -v /opt/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml  
  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://192.168.91.132:9090/graph

效果如下：

访问targets，url如下：

http://192.168.91.132:9090/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 
  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://192.168.91.132:3000/

 

默认会先跳转到登录页面，默认的用户名和密码都是admin

 

登录之后，它会要求你重置密码。你还可以再输次admin密码！

 

密码设置完成之后，就会跳转到首页

点击Add data source，由于使用的是镜像方式，所以版本比较新。和网络上的文章展示的图片不一样！

name名字写Prometheus

type 选择Prometheus，因为数据都从它那里获取

url 输入Prometheus的ip+端口

 

点击下面的Save & Test，如果出现绿色的，说明ok了

 

mysql所在机器操作：

安装mysql

mysql的官方网站：www.mysql.com
mysql最新版本:8.0
mysql使用最多:5.7
默认情况下:centos的仓库里没有mysql,去官网下载mysql仓库安装包
1.下载mysql的yum仓库
[root@22e34e653991 /]# wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
2.安装mysql的yum仓库
[root@22e34e653991 /]# rpm -ivh mysql80-community-release-el7-3.noarch.rpm
3.修改安装版本（方法一）
[root@22e34e653991 /]# yum repolist all | grep mysql 查看所有关于mysql的库
[root@22e34e653991 /]# yum -y install yum-utils yum的工具包
[root@22e34e653991 /]# yum-config-manager --enable mysql57-community 启动mysql57
[root@22e34e653991 /]# yum-config-manager --disable mysql80-community 禁用mysql80
4.安装数据库
[root@22e34e653991 /]# yum -y install mysql mysql-server
修改yum仓库（方法二）
systemctl start mysqld
5.查看数据库的初始密码
[root@22e34e653991 /]# grep 'password' /var/log/mysqld.log
2019-07-13T15:14:31.176905Z 1 [Note] A temporary password is generated for root@localhost: k12zPB1r;2Ta
6.使用密码登陆
[root@22e34e653991 /]# mysql -u root -p'k12zPB1r;2Ta'
7.修改密码
方法一：
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'Cj@123';
方法二：
[root@22e34e653991 /]# mysqladmin -u root -p'k12zPB1r;2Ta' password 'cj@123'
密码：大小写有特殊字符数字

cp -ar mysqld_exporter /usr/local/bin/

chmod +x /usr/local/bin/mysqld_exporter

2.登陆 mysql 为 mysql_exporter 创建账号并授权

# 创建数据库用户。

CREATE USER 'exporter'@'localhost' IDENTIFIED BY 'XXXXXXXX' WITH MAX_USER_CONNECTIONS 3;

# 对 mysql_exporter 用户授权

GRANT PROCESS, REPLICATION CLIENT, SELECT ON *.* TO 'exporter'@'localhost';

exit 退出 mysql

若mysql端口号是默认3306

3.创建 mysql 配置文件、运行时可免密码连接数据库：

cd mysqld_exporter-0.10.0.linux-amd64
cat my.cnf
[client]
user=exporter
password=Abcdef123!.
host=127.0.0.1

host一定要写

4.启动 mysql_exporter 客户端

nohup ./mysqld_exporter --config.my-cnf=./my.cnf &

若mysql端口号非默认则：

只能通过

export DATA_SOURCE_NAME='exporter1:Abcdef123!.@tcp(127.0.0.1:4417)/?loc=Local'

nohup ./mysql_exporter &

mysqld_exporter 的监听端口是 9104

5.修改 prometheus-alertmanager-cfg.yaml 文件，添加如下

vim /opt/prometheus/prometheus.yml
- job_name: 'mysql'
static_configs:
- targets: ['192.168.40.180:9104']

重启prometheus

root@ubuntu:/opt/prometheus# docker ps |grep prometheus
0fa256f85750        prom/prometheus     "/bin/prometheus --c…"   About an hour ago   Up 29 seconds       0.0.0.0:9090->9090/tcp   wizardly_kirch

root@ubuntu:/opt/prometheus# docker restart 0fa256f85750

grafana 导入 mysql 监控图表

mysql-overview_rev5.json

 最后就有数据啦