【Docker Port Question】Why can't we connect nextcloud to external databases?

[leawhig]

My NC is working fine.

But one day I wanted to play with docker 😅 and wanted to split my NC DB (MySQL) into different ip.

BUT Direct Error...

 

Error code.

SQLSTATE[HY000][2002] Connection Refused

 

I would like to know why this is happening, thanks.

[Aran]

BUMP

 

I was playing with NC and FileRun and encoutered the same problem in both those dockers. So i don't think it's NC related.

 

 

When the network type is changed to custom:br an given a different ip, it cannot connect to the database. Still, the ip's are within the same subnet. It does not matter if the databasehost is changed to localhost or 123.456.7.89 .

 

To make it more rare, the problem only exists in my backup server. The NC docker on my main server is configured with custom network type. Both servers running unraid 6.9.2.

 

What am i doing wrong? Please, enlighten me.

Edited July 7, 2022 by Aran

[Aran]

Found it:

 

Set 'Host access to custom networks' to 'Enabled' from the docker settings page. When greyed-out, stop the docker service => enable host access to custom network => start docker again.

 

 

🙄

[primeval_god]

If the containers are on the same custom bridge network (not the default bridge) then you should be able to use the container name as the database host. Custom bridge networks have an internal DNS mapping for each container so containers can reference each other by name.

[chicherich]

On 7/7/2022 at 7:47 PM, primeval_god said:

If the containers are on the same custom bridge network (not the default bridge) then you should be able to use the container name as the database host. Custom bridge networks have an internal DNS mapping for each container so containers can reference each other by name.

That was it for me, thank you!