Install Prometheus Grafana on Ubuntu to monitor mysql, redis

As the saying goes, a system without monitoring is running naked, and a good monitoring is the third hand and the third eye of the operation and maintenance personnel. This article will use prometheus and Grafana to build a monitoring system to monitor the host and database ( MySQL , Redis ).

1. Underwear Grafana

Grafana is a visualization panel (Dashboard) with a very beautiful chart and layout display, a full-featured measurement dashboard and a graph editor, and supports Graphite, zabbix, InfluxDB, Prometheus and other data sources.

1.1 Download and install

Download link: https://grafana.com/grafana/download

After downloading, you can install it:

sudo dpkg -i grafana_5.0.4_amd64.deb

Start to view status:

sudo systemctl start grafana-server
sudo systemctl status grafana-server

 

 Next, set up the prometheus user and directory:

vagrant@vagrant:/htdocs/share$ sudo useradd --no-create-home --shell /bin/false prometheus
vagrant@vagrant:/htdocs/share$ sudo useradd --no-create-home --shell /bin/false node_exporter
vagrant@vagrant:/htdocs/share$ sudo mkdir /etc/prometheus
vagrant@vagrant:/htdocs/share$ sudo mkdir /var/lib/prometheus
vagrant@vagrant:/htdocs/share$ sudo chown prometheus:prometheus /etc/prometheus
vagrant@vagrant:/htdocs/share$ sudo chown prometheus:prometheus /var/lib/prometheus

Next download prometheus:

vagrant@vagrant:/htdocs/share$ cd 
vagrant@vagrant:~$ curl -LO https://github.com/prometheus/prometheus/releases/download/v2.0.0/prometheus-2.0.0.linux-amd64.tar.gz

 Unzip and enter the directory:

vagrant@vagrant:/htdocs/share$ sudo cp prometheus-2.0.0.linux-amd64/prometheus /usr/local/bin/
vagrant@vagrant:/htdocs/share$ sudo cp prometheus-2.0.0.linux-amd64/promtool /usr/local/bin/
vagrant@vagrant:/htdocs/share$ sudo chown prometheus:prometheus /usr/local/bin/prometheus
vagrant@vagrant:/htdocs/share$ sudo chown prometheus:prometheus /usr/local/bin/promtool
vagrant@vagrant:/htdocs/share$ sudo cp -r prometheus-2.0.0.linux-amd64/consoles /etc/prometheus
vagrant@vagrant:/htdocs/share$ sudo cp -r prometheus-2.0.0.linux-amd64/console_libraries /etc/prometheus
vagrant@vagrant:/htdocs/share$ sudo chown -R prometheus:prometheus /etc/prometheus/consoles
vagrant@vagrant:/htdocs/share$ sudo chown -R prometheus:prometheus /etc/prometheus/console_libraries

 

 Add monitoring task:

 The contents of /etc/prometheus/prometheus.yml are as follows:

global:
  scrape_interval: 15s

scrape_configs:
  - job_name: 'prometheus'
    scrape_interval: 5s
    static_configs:
      - targets: ['localhost:9090']
  - job_name: 'Mysql'
    static_configs:
      - targets: ['192.168.0.200:9104']
        labels:
          instance: '192.168.0.200'
  - job_name: 'redis'
    static_configs:
      - targets: ['192.168.0.200:9121']
        labels:
          instance: '127.0.0.1'

 

 The contents of /etc/systemd/system/prometheus.service are as follows:

[Unit]
Description=Prometheus
Wants=network-online.target
After=network-online.target

[Service]
User=prometheus
Group=prometheus
Type=simple
ExecStart=/usr/local/bin/prometheus \
    --config.file /etc/prometheus/prometheus.yml \
    --storage.tsdb.path /var/lib/prometheus/ \
    --web.console.templates=/etc/prometheus/consoles \
    --web.console.libraries=/etc/prometheus/console_libraries

[Install]
WantedBy=multi-user.target
 

Save the restart configuration:

vagrant@vagrant:/htdocs/share$ sudo systemctl daemon-reload

vagrant@vagrant:/htdocs/share$ sudo systemctl start prometheus
vagrant@vagrant:/htdocs/share$ sudo systemctl enable prometheus

 Open the home page: http://192.168.0.200:3000

Default password: admin/admin

 http://192.168.0.200:9090/graph

 Add data source:

 Import the Kanban template separately:

 

wget https://github.com/prometheus/mysqld_exporter/releases/download/v0.11.0/mysqld_exporter-0.11.0.linux-amd64.tar.gz

$ tar xvfz mysqld_exporter-0.11.0.linux-amd64.tar.gz

$ cd mysqld_exporter-0.11.0.linux-amd64/

$ sudo vim my.cnf

The content is as follows:

[client]
user=exporter
password=123456
port=3306

After saving, run:

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

download:

wget https://github.com/oliver006/redis_exporter/releases/download/v0.13/redis_exporter-v0.13.l

Unzip:

tar -xvf  redis_exporter-v0.13.linux-amd64.tar.gz

Download the prometheus-redis_rev1.json template of grafana's redis:

wget  https://grafana.com/api/dashboards/763/revisions/1/download

Import the json template in grafana:

 

Start redis_exporter:

## 无密码
./redis_exporter redis//192.168.0.200:6379 &
## 有密码
./redis_exporter  -redis.addr 192.168.0.200:6379  -redis.password 123456 

 

Download my2.sql:

git clone https://github.com/john1337/my2Collector.git 

After the download is complete, import the database.

 You can see these monitors in Kanban: