diff --git a/focal-fossa-jdk8-devel/descriptor.json b/focal-fossa-jdk8-devel/descriptor.json
new file mode 100644
index 0000000..9dc63f1
--- /dev/null
+++ b/focal-fossa-jdk8-devel/descriptor.json
@@ -0,0 +1,24 @@
+{
+  "id":"456ab8af-3cec-4286-ae9c-1bdf2bb46e54",
+  "active":true,
+  "name":"focal-fossa-jdk8-devel",
+  "description":"JDK 8 specialized focal-fossa (Ubuntu 20:04) runtime with Maven and Gradle support",
+  "keywords":[
+    "lxd",
+    "linux",
+    "ubuntu",
+    "focal-fossa",
+    "bash",
+    "java",
+    "jdk",
+    "jdk8",
+    "maven",
+    "gradle"
+  ],
+  "responsible":{
+    "name":"Marco Lettere",
+    "email":"m.lettere@gmail.com"
+  },
+  "type":"lxd",
+  "image":"ubuntu:20.04"
+}
diff --git a/focal-fossa-jdk8-devel/packer.json b/focal-fossa-jdk8-devel/packer.json
new file mode 100644
index 0000000..4c19d8d
--- /dev/null
+++ b/focal-fossa-jdk8-devel/packer.json
@@ -0,0 +1,31 @@
+{
+	"variables" : {
+	    "id" : "",
+	    "description" : "",
+	    "name" : "",	
+	},
+	"builders": [
+	    {
+        	"type": "{{ user `type` }}",
+        	"name": "{{ user `name`}} ",
+        	"image": "ubuntu:20.04",
+        	"output_image": "{{ user `name` }}:{{user `id`}}",
+        	"publish_properties": {
+          		"description": "{{ user `description`}}"
+            }
+      	}
+    ],
+    "provisioners": [
+    	{
+  			"type" : "shell",
+    		"inline" : [
+      			"/usr/bin/cloud-init status --wait",
+      			"apt-get update",
+      			"apt-get -y autoremove",
+      			"apt-get -y autoclean",
+      			"apt-get install -y openjdk-8-jdk maven gradle"
+    		]
+  		}
+    ],
+    "post-processors": []
+}
diff --git a/focal-fossa-py3-devel/descriptor.json b/focal-fossa-py3-devel/descriptor.json
new file mode 100644
index 0000000..04fb68f
--- /dev/null
+++ b/focal-fossa-py3-devel/descriptor.json
@@ -0,0 +1,22 @@
+{
+  "id":"7b5ba47f-d661-4596-9435-3cd6ddaab97f",
+  "active":true,
+  "name":"focal-fossa-py3-devel",
+  "description":"Python3 specialized focal-fossa (Ubuntu 20:04) runtime",
+  "keywords":[
+    "lxd",
+    "linux",
+    "ubuntu",
+    "focal-fossa",
+    "bash",
+    "python-3",
+    "python-3.8",
+    "pip"
+  ],
+  "responsible":{
+    "name":"Marco Lettere",
+    "email":"m.lettere@gmail.com"
+  },
+  "type":"lxd",
+  "image":"ubuntu:20.04"
+}
diff --git a/focal-fossa-py3-devel/packer.json b/focal-fossa-py3-devel/packer.json
new file mode 100644
index 0000000..9afbbca
--- /dev/null
+++ b/focal-fossa-py3-devel/packer.json
@@ -0,0 +1,29 @@
+{
+	"variables" : {
+	    "id" : "",
+	    "description" : "",
+	    "name" : "",	
+	},
+	"builders": [
+	    {
+        	"type": "{{ user `type` }}",
+        	"name": "{{ user `name`}} ",
+        	"image": "ubuntu:20.04",
+        	"output_image": "{{ user `name` }}:{{user `id`}}",
+        	"publish_properties": {
+          		"description": "{{ user `description`}}"
+            }
+      	}
+    ],
+    "provisioners": [
+    	{
+  			"type" : "shell",
+    		"inline" : [
+      			"/usr/bin/cloud-init status --wait",
+      			"apt-get update",
+      			"apt-get install -y python3-pip"
+    		]
+  		}
+    ],
+    "post-processors": []
+}
diff --git a/focal-fossa/packer.json b/focal-fossa/packer.json
index c9e01e3..2cec290 100644
--- a/focal-fossa/packer.json
+++ b/focal-fossa/packer.json
@@ -1,8 +1,8 @@
 {
 	"variables" : {
-	    "id" : "84127ecc-6892-4c63-8860-16a4f491fe4c"
-	    "description" : "This is a default empty Ubuntu 20.04 (\"Focal Fossa\") Runtime provided as LXD container.",
-	    "name" : "focal-fossa",	
+	    "id" : ""
+	    "description" : "",
+	    "name" : "",	
 	},
 	"builders": [
 	    {