snap: edit docker configuration

I'd like to configure my docker daemon. To do so, I have to modify the daemon.json file, but unfortunatelly, it's on a filesystem that is mounted read-only;

root@shinwey:/snap/docker/current/config# ls -ltr
total 1
-rw-r--r-- 1 root root 72 Jun 8 22:18 daemon.json
root@shinwey:/snap/docker/current/config# touch daemon.json
touch: cannot touch 'daemon.json': Read-only file system
root@shinwey:/snap/docker/current/config# df .
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/loop3 128896 128896 0 100% /snap/docker/471

I tried to play with "snap get docker", as this command deals with configuration, with no success;

root@shinwey:/snap/docker/current/config# snap get docker
error: snap "docker" has no configuration

Is there any specific "snap" command to update an application configuration ?

Any help would be greatly appreciated

1 Answer

mentions that the daemon.json file should be in this folder :

/var/snap/docker/current/etc/docker/daemon.json

or

/var/snap/docker/current/config/daemon.json

to take into account the changes you then need to

sudo snap restart docker