pmm 添加proxysql metrics

pmm 对于proxysql 的管理是基于metrics的进行处理的，使用的是proxysql exporter
对于proxysql exporter的添加，比较简单，我们可以通过独立的额容器运行exporter 服务

pmm 参考架构

方便大家对于pmm 加深印象

环境准备

docker-compose文件
内容比较多，包含了mysql，postgres 的配置，以及exporter

 
version: "3"

services: 

  proxysql-metrics:

    build: 

      context: ./proxysql

      dockerfile: Dockerfile

    image: dalongrong/proxysql-metrics

  proxysql:

    image: proxysql/proxysql:2.0.6

    volumes: 

    - "./proxysql.cnf:/etc/proxysql.cnf"

    - "./db:/var/lib/proxysql"

    ports:

    - "6033:6033"

    - "6032:6032"

  pgloader-mysql:

    image: dimitri/pgloader

    command: pgloader mysql://root:dalongrong@mysql/gogs postgresql://postgres:dalong@postgres:5432/appdemo

  gogs:

    image: gogs/gogs

    ports:

      - "10022:22"

      - "3000:3000"

  pmmserver:

    image: percona/pmm-server:1.17

    ports: 

    - "80:80"

  mysqlexporter:

    image: prom/mysqld-exporter

    ports: 

    - "9104:9104"

    environment: 

    - "DATA_SOURCE_NAME=root:dalongrong@(mysql:3306)/"

  mysql:

    image: dalongrong/pmm-mysql

    build: 

     context: ./mysql

     dockerfile: Dockerfile

    ports:

      - 3306:3306

    command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci

    environment:

      MYSQL_ROOT_PASSWORD: dalongrong

      MYSQL_DATABASE: gogs

      MYSQL_USER: gogs

      MYSQL_PASSWORD: dalongrong

      TZ: Asia/Shanghai

  postgres:

    image: dalongrong/pmm-postgres

    build: 

     context: ./pg

     dockerfile: Dockerfile

    ports:

    - "5432:5432"

    environment:

    - "POSTGRES_PASSWORD:dalong"

  pgexporter:

    image: wrouesnel/postgres_exporter:latest

    ports:

    - 9187:9187

    environment:

    - DATA_SOURCE_NAME=postgresql://postgres:dalong@postgres:5432/postgres_exporter?sslmode=disable

说明
对于mysql 以及postgres 的配置以及dockerfile 就不介绍了，可以参考https://www.cnblogs.com/rongfengliang/p/11306210.html
proxysql-metrics dockerfile 说明,内容比较简单，就是基于debian 集成pmm client ，为了方便运行添加了一个echo 的服务，方便
容器一直运行，同时进行操作

FROM debian:stretch

RUN set -ex; \

    apt-get update; \

  apt-get install -y gnupg apt-transport-https; \

  echo 'deb https://repo.percona.com/apt stretch main' > /etc/apt/sources.list.d/percona.list; \

  apt-get update && apt-get install -y --fix-missing --allow-unauthenticated pmm-client; \

  apt-get remove --purge -y gnupg apt-transport-https; \

  apt-get autoremove -y --purge; \

  rm -rf /var/lib/apt/lists/* \

  true

COPY initpmm.sh /root/

COPY entrypoint.sh /root/

RUN chmod +x /root/entrypoint.sh

ENTRYPOINT [ "/root/entrypoint.sh" ]

entrypoint.sh 容器入口

#!/bin/bash

while true; 

 do echo hello world; 

 sleep 1; 

done

initpmm.sh 配置pmm

#!/bin/sh

while ! pmm-admin config --client-name myproxysql --server pmmserver

do

    sleep 1

done

## 启动&&测试

启动

docker-compose up -d

添加proxysql metrics

配置pmm server

docker-compose exec proxysql-metrics sh /root/initpmm.sh

添加metrics 到pmm

docker-compose exec proxysql-metrics  pmm-admin add proxysql:metrics --dsn "radmin:radmin@tcp(proxysql:6032)/"