在docker中连接mysqld-exporter - mysql_up 0

Question

我做了什么：

1. docker run --net minha-rede --name mysql01 -e MYSQL_ROOT_PASSWORD=Password1234 -d mysql

2. docker run --net minha-rede --name wordpress01 --link mysql01 -p 8080:80 -e WORDPRESS_DB_HOST=mysql01:3306 -e WORDPRESS_DB_USER=root -e WORDPRESS_DB_PASSWORD=Password1234 -e WORDPRESS_DB_NAME=wordpress -e WORDPRESS_TABLE_PREFIX=wp_ -d wordpress

3. docker exec -it mysql01 bash

4. mysql -u root -p

5. CREATE USER 'luckerman'@'localhost' IDENTIFIED BY 'onboard' WITH MAX_USER_CONNECTIONS 3;

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

7. exit

8. exit

9. docker run -d \
  -p 9104:9104 --name mysqlexp01\
  --network minha-rede  \
  -e DATA_SOURCE_NAME="luckerman:onboard@(minha-rede:3306)/" \
  prom/mysqld-exporter

但是，当我运行http://localhost:9104/metrics时，我有消息

# TYPE mysql_exporter_last_scrape_error gauge
mysql_exporter_last_scrape_error 1

，当我运行docker logs mysqlexp01时，它显示了我：

time =“2018-09-11T20：57：40Z”level = info msg =“启动mysqld_exporter（版本= 0.11.0，branch = HEAD，版本= 5d7179615695a61ecc3b5bf90a2a7c76a9592cdd）”source =“mysqld_exporter.go：206”

time =“2018-09-11T20：57：40Z”level = info msg =“构建上下文（go = go1.10.3，user = root @ 3d3ff666b0e4，date = 20180629-15：00：35）”source =“mysqld_exporter。去：207"

time =“2018-09-11T20：57：40Z”level = info msg =“启用刮刀：”source =“mysqld_exporter.go：218”

time =“2018-09-11T20：57：40Z”level = info msg =“ - collect.info_schema.tables”source =“mysqld_exporter.go：222”

time =“2018-09-11T20：57：40Z”level = info msg =“ - collect.global_status”source =“mysqld_exporter.go：222”

time =“2018-09-11T20：57：40Z”level = info msg =“ - collect.global_variables”source =“mysqld_exporter.go：222”

time =“2018-09-11T20：57：40Z”level = info msg =“ - collect.slave_status”source =“mysqld_exporter.go：222”

time =“2018-09-11T20：57：40Z”level = info msg =“聆听：9104”source =“mysqld_exporter.go：232”

time =“2018-09-11T20：57：44Z”level = error msg =“ping mysqld时出错：拨打tcp 127.0.0.1:3306：connect：连接拒绝”source =“exporter.go：119”

我做错了什么？我尝试了很多论坛，网站等...

Answer 1

有效！我这样做了：

docker network检查我的网络

然后我找到了my-sql的ip（在我的情况下是172.23.0.2）然后我输入了my-sql并执行了这些命令：CREATE USER' luckerman'@'172.23.0.2'通过'onboard'识别'MAX_USER_CONNECTIONS 3;

授权流程，复制客户端，选择。 TO' luckerman'@'172.23.0.2';

谢谢@ alex-karshin！