I’m running a go app locally (MacOS Sonoma) that connects to a local mysql server. This works fine when I build the app and run it from the command line. When I create a container and run it – all locally – it can not connect. The exact error:

dial tcp 127.0.0.1:3306: connect: connection refused

The connection string I use for both cases is:

user:pw@tcp(127.0.0.1:3306)/raw_data?parseTime=true

When I run docker I use:

docker run --net=host <latest image id>

My sql.cnf looks like this:

[mysqld]
bind-address = 0.0.0.0
mysqlx-bind-address = 0.0.0.0

[client-server]
bind-address = 0.0.0.0

I tried restarting the server, but there was no change. The users permission on the server looks like this:

GRANT ALL ON *.* TO `user`@`%`

I’ve also tried running the container like this:

docker run -p 3306:3306 <image id>