Can you please answer the below questions so that I can understand the issue better
Were you running the docker on the same server as your MySQL database? Is your MySQL server running behind a firewall? If yes, that might be preventing it to connect to n8n.cloud. You would have to whitelist the IP of n8n.cloud.
The process of how to whitelist an IP depends on the server you’re using. I would suggest you to go through their documentation to learn how you can whitelist an IP address.
I’m running mysql node on n8n cloud and having the same error (connect ETIMEDOUT) even after I whitelisted n8n.cloud IP. Is there something else I can try?
just fyi - I’m @Alfie_Kim 's friend and we working on the same project.