Add examples of storage-opts and log-opts for the daemon
@@ -302,6 +302,24 @@ options for `zfs` start with `zfs` and options for `btrfs` start with `btrfs`.
#### Devicemapper options
+This is an example of the configuration file for devicemapper on Linux:
+
+```json
+{
+ "storage-driver": "devicemapper",
+ "storage-opts": [
+ "dm.thinpooldev=/dev/mapper/thin-pool",
+ "dm.use_deferred_deletion=true",
+ "dm.use_deferred_removal=true"
+ ],
+ "log-driver": "json-file",
+ "log-opts": {
+ "max-size": "10m",
+ "max-file": "10"
+ }
+}
+```
+
##### `dm.thinpooldev`
Specifies a custom block storage device to use for the thin pool.
