feat: Cache DSM info (#378)

* feat: Cache location

* feat: Cache location

* feat: Add support URL

* feat: Cache location

* fix: Remove files

* feat: Reset filesystem

* fix: Exit when PID is missing

* fix: Counter file

* fix: Check flags

* docs: Readme

* feat: Cleanup files

* fix: Check flags

* fix: Check flags

* fix: Initialization

* fix: Initalization

* fix: Initialization

* fix: Cleanup temp

* fix: Initialize system

* feat: Config system

* feat: Configure system

* fix: Variables

* fix: Variables

* fix: Error handling

* style: Comments

* fix: Returnvalue

* fix: Returnvalue

* fix: Returnvalue

* fix: Returnvalue

* fix: Returnvalue

* docs: Multi-disk support

* feat: Use cached location

* fix: Swap order

readme.md

@@ -17,7 +17,6 @@ Virtual DSM in a docker container.
  - Multi-platform
  - KVM acceleration
  - GPU passthrough
- - Graceful shutdowns
  - Upgrades supported
  
 ## Usage
@@ -85,6 +84,32 @@ docker run -it --rm -p 5000:5000 --device=/dev/kvm --cap-add NET_ADMIN --stop-ti
     ```
 
     Keep in mind that this will not affect any of your existing disks, it only applies to newly created disks.
+    
+  * ### How do I add multiple disks?
+
+    To mount extra volumes, modify your compose file like this:
+    
+    ```yaml
+    environment:
+      DISK2_SIZE: "32G"
+      DISK3_SIZE: "64G"
+    volumes:
+      - /home/example2:/storage2
+      - /home/example3:/storage3
+    ```
+
+    Additionally, it's also possible to passthrough raw disk devices like this:
+
+    ```yaml
+    environment:
+      DEVICE2: "/dev/vdc1"
+      DEVICE3: "/dev/vdc2"
+    devices:
+      - /dev/vdc1
+      - /dev/vdc2
+    ```    
+
+    Please beware that any pre-existing partitions and data on those devices will be wiped.
 
   * ### How do I increase the amount of CPU or RAM?