How to access docker volumes on a Synology NAS

Question

I am trying to get a Matrix Synapse server running on my Synology NAS through docker.

When I run the generate command to get the intial homeserver.yaml, it does get generated :

$ sudo docker run -it --rm --mount type=volume,src=synapse-config,dst=/data -e SYNAPSE_SERVER_NAME=my.matrix.host -e SYNAPSE_REPORT_STATS=yes matrixdotorg/synapse:latest generate

Creating log config /data/my.matrix.host.log.config
Generating config file /data/homeserver.yaml
Generating signing key file /data/my.matrix.host.signing.key
A config file has been generated in '/data/homeserver.yaml' for server name 'my.matrix.host'. Please review this file and customise it to your needs.

So the file is generated in /volume1/@docker/volumes/synapse-config/_data but when I try to navigate there I get a permission denied error. I am ssh-ing using my admin account on the Synology.

How can I access this file through ssh CLI or DSM web interface or something else ?

Answer 1

Try switching to root temporarily with sudo -i

When you are done, type exit to revert back to admin status.