[TryMOS] Update image build fileset

 * add ansible playbooks for image build/install
 * move inventory files to Ansible folder

Related-Prod: PRODX-53424
Change-Id: I01d32082190ab20ac5bc3f64a2a268e063e33c68
diff --git a/trymos/image_build/template.json b/trymos/image_build/template.json
index be7d8b9..cc8e575 100644
--- a/trymos/image_build/template.json
+++ b/trymos/image_build/template.json
@@ -2,7 +2,7 @@
   "variables": {
     "user": "root",
     "password": "r00tme",
-    "disk_size": "2500M",
+    "disk_size": "16000M",
     "images_cache": "{{ env `PACKER_IMAGES_CACHE` }}",
     "image_base_url": "{{ env `IMAGE_BASE_URL` }}",
     "image_md5_url": "{{ env `IMAGE_MD5_URL` }}",
@@ -13,7 +13,7 @@
     {
       "type": "shell",
       "inline": [
-         "mkdir -p /usr/share/trymos /srv"
+         "mkdir -p /usr/share/trymos /srv/trymos"
       ]
     },
     {
@@ -23,18 +23,34 @@
     },
     {
       "type": "file",
-      "source": "../rockoon/charts",
-      "destination": "/srv/"
-    },
-    {
-      "type": "file",
-      "source": "../rockoon/virtual_lab",
+      "sources": [
+         "../rockoon/charts",
+         "../rockoon/virtual_lab"
+      ],
       "destination": "/srv/"
     },
     {
       "type": "file",
       "source": "./scripts/launch.sh",
       "destination": "/usr/share/trymos/"
+    },
+    {
+      "type": "file",
+      "sources": [
+         "./ansible",
+         "./scripts/build-image.sh",
+         "./scripts/install-trymos.sh"
+      ],
+      "destination": "/srv/trymos/"
+    },
+    {
+      "type": "shell",
+      "environment_vars": [
+          "INVENTORY_FILE=/srv/single_node.yaml"
+      ],
+      "inline": [
+         "/srv/trymos/build-image.sh"
+      ]
     }
   ],
   "builders": [