added tuneim for cuda and py3

focal-fossa-cuda-py3/descriptor.json

@@ -0,0 +1,23 @@
+{
+  "id":"7ed75313-6b78-4f35-ad77-01442ff962db",
+  "active":true,
+  "name":"focal-fossa-cuda-py3",
+  "description":"An LXD runtime based on Ubuntu focal fossa 20.04 for running nvidia based GPU code and python3 applications",
+  "keywords":[
+    "lxd",
+    "linux",
+    "ubuntu",
+    "focal-fossa",
+    "bash",
+    "nvidia",
+    "GPU"
+    "python",
+    "python3"
+  ],
+  "responsible":{
+    "name":"Marco Lettere",
+    "email":"m.lettere@gmail.com"
+  },
+  "type":"lxd",
+  "image":"focal-fossa-cuda-py3"
+}

focal-fossa-cuda-py3/packer.json

@@ -0,0 +1,22 @@
+{
+   "builders": [
+      {
+       	"type": "lxd",
+       	"name": "{{ user `name`}}",
+       	"image": "focal-fossa-gpu",
+       	"output_image": "{{ user `name` }}",
+       	"publish_properties": {
+   	  "description": "{{ user `description`}}"
+        }
+      }
+    ],
+    "provisioners": [
+      {
+	"type" : "shell",
+	"inline" : [
+           "apt-get install -y python3-pip"
+	]
+      }
+    ],
+    "post-processors": []
+}