无法从主机连接到在 docker 下运行的 mysql 的套接字？

Question

I have mySQL running in a container. It and my app (in a different Docker container) seem to run fine. I am now trying to use Jaspersoft's iReport to develop a report with. I have managed to get iReport up and running on the host, Ubuntu. The problem is accessing the database from the host.

This is required to use iReport and I just can't seem to get the connection working. I tried looking at the mysql socket, but it is not in the normal place, since mySQL is in a Docker Container. I am also working on getting JasperReports server to run in another container. But my problem is connecting from the host to the mySQL database running in Docker via an JDBC connection.

here is the docker-compose.yml https://drive.google.com/open?id=1CY_tPmnot3zSab0BtLE1fJUC7sdD2tyA

The connection that iReports has chosen is jdbc:mysql://localhost/substantiator. When I try to "test" this with the iReport database test button I get a popup that asks for password. I have tried using the same user/password combo that works from my app. It fails with: SQL problems: Communication Link Failure. In researching this I am asked to update the mySQL socket path in a mysql cnf file. But in my installation the socket file doesn't exist (because it it in docker?). So I am stumped. I am considering moving over to mariaDB. Any ideas?

Answer 1

嗨，您的 MySql 容器从主机公开端口 3306，您可以使用 localhost 进行连接，但是对于某些外部服务，您需要使用主机 IP 地址，并确保端口 3306 对外公开。