第一步、安装Influxdb

首先启动docker

systemctl start docker

然后安装Influxdb（这里解释一下为啥用docker，因为官网下载的话需要FQ【fan-qiang】，真悲催）注意切换root用户

[root@localhost admin]# docker pull influxdb
Using default tag: latest
Trying to pull repository docker.io/library/influxdb ... 
latest: Pulling from docker.io/library/influxdb
55cbf04beb70: Pull complete 
1607093a898c: Pull complete 
9a8ea045c926: Pull complete 
4c8b66fe6495: Pull complete 
9f3c67b9b082: Pull complete 
864cc6881ca8: Pull complete 
c1165c5c85e6: Pull complete 
0b5bd48b7b2b: Pull complete 
Digest: sha256:c9098612611038b6d0daddf1ed89d0144f41124b0feed765c0d31844e7f32e9f
Status: Downloaded newer image for docker.io/influxdb:latest
[root@localhost admin]# docker images
REPOSITORY              TAG                 IMAGE ID            CREATED             SIZE
docker.io/mongo         latest              8bf72137439e        9 days ago          380 MB
docker.io/influxdb      latest              34de2bdc2d7f        13 days ago         213 MB
docker.io/centos        latest              5182e96772bf        13 days ago         200 MB
docker.io/hello-world   latest              2cb0d9787c4d        5 weeks ago         1.85 kB

启动Influxdb

[root@localhost admin]# docker run -d -p 8083:8083 -p 8086:8086 --name my_influxdb influxdb
aec85244ff227e3175afcba59dc7293001428e4b21300c09c5567becac270635
[root@localhost admin]# docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                                            NAMES
aec85244ff22        influxdb            "/entrypoint.sh in..."   8 seconds ago       Up 5 seconds        0.0.0.0:8083->8083/tcp, 0.0.0.0:8086->8086/tcp   my_influxdb

其实这一步可以省略8083端口，因为新版本根本就移除了web控制台部分，网上大多数教程还是0.8 或者 1.1版本的，他们那个有web控制台（其实14、15年的文章用低版本无可厚非，现在有的人2018年7月份的教程都用的0.8版本，我想问有意思吗？）

进入docker镜像：

[root@localhost admin]# docker exec -it my_influxdb bash

进入/usr/bin目录，这里面有Influxdb的工具

root@aec85244ff22:/usr/bin# find | grep influx  
./influx
./influx_inspect
./influx_stress
./influx_tsm
./influxd

查看Influxdb版本

./influx -version

进入Influxdb客户端命令行

root@aec85244ff22:/usr/bin# ./influx
Connected to http://localhost:8086 version 1.6.1
InfluxDB shell version: 1.6.1
> show databases
name: databases
name
----
_internal
> exit

创建数据库

> create database my_test
> show databases
name: databases
name
----
_internal
my_test

删除数据库

drop database [db_name]

使用数据库

> use my_test
Using database my_test

现在写个定时程序，不断向数据库添加数据

建立一个SpringBoot工程

导入依赖

入口类

package com.example.demo;


import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;

import java.util.Random;

@SpringBootApplication
@EnableScheduling
public class DemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }


    @Scheduled(fixedRate = 1000)
    public void doInsert(){
        Random random = new Random();
        InfluxDBDemo.insert(random.nextInt(1000));
    }

}

Influxdb类

package com.example.demo;

import org.influxdb.InfluxDB;
import org.influxdb.InfluxDBFactory;
import org.influxdb.dto.Point;


public class InfluxDBDemo {

    public static void insert(int num){
        InfluxDB db = InfluxDBFactory.connect("http://192.168.192.128:8086", "admin", "admin");
        db.setDatabase("my_test");  // 设置数据库
        Point.Builder builder = Point.measurement("test_measurement");  // 创建Builder，设置表名
        builder.addField("count",num);  // 添加Field
        builder.tag("TAG_CODE","TAG_VALUE_" + num);    // 添加Tag
        Point point = builder.build();
        db.write(point);
    }
}

当你启动，每隔1秒自动向数据库添加

这个时候，显示表列表

> show measurements
name: measurements
name
----
test_measurement

查看表

> select * from test_measurement
name: test_measurement
time                TAG_CODE      count
----                --------      -----
1534754858345040970 TAG_VALUE_655 655
1534754859072609138 TAG_VALUE_42  42
1534754860076519190 TAG_VALUE_881 881
1534754861077128121 TAG_VALUE_461 461
1534754862079956555 TAG_VALUE_374 374
1534754863079020432 TAG_VALUE_574 574
1534754864073986943 TAG_VALUE_647 647
1534754865077651294 TAG_VALUE_78  78
1534754866079569554 TAG_VALUE_688 688

删除表

drop measurement 【measurement_name】

第二步、安装Grafana

相比之下，grafana就比较友好了，因为官网上的都能下载，无论Windows还是linux。

[root@localhost admin]# docker pull grafana/grafana
Using default tag: latest
Trying to pull repository docker.io/grafana/grafana ... 
latest: Pulling from docker.io/grafana/grafana
be8881be8156: Pull complete 
728ffd1b8130: Pull complete 
426111690cea: Pull complete 
Digest: sha256:b5591419cfa3a930cecdddff0a338c03296d29b617d9f340dc72ee839dd1c5be
Status: Downloaded newer image for docker.io/grafana/grafana:latest

运行

[root@localhost admin]# docker run -d -p 3000:3000 --name my_grafana grafana/grafana
6c9d5d2d8422e666ca44403c5c47be3fa43308b4d2a9587ab16ad97fcffede24

打开防火墙端口，以便你本机能访问虚拟机资源

[root@localhost admin]# firewall-cmd --zone=public --add-port=8086/tcp --permanent
success
[root@localhost admin]# firewall-cmd --zone=public --add-port=3000/tcp --permanent
success
[root@localhost admin]# systemctl restart firewalld

访问　　http://192.168.192.128:3000