diff --git a/day01-image/template.json b/day01-image/template.json
index 6cc5ce5..4db83f2 100644
--- a/day01-image/template.json
+++ b/day01-image/template.json
@@ -52,7 +52,8 @@
         "GIT_SALT_FORMULAS_SCRIPTS={{ user `git_salt_formulas_scripts` }}",
         "APT_REPOSITORY={{ user `apt_repository` }}",
         "APT_REPOSITORY_GPG={{ user `apt_repository_gpg` }}",
-        "APT_MIRANTIS_SALT_REPO={{ user `apt_mirantis_salt_repo` }}"
+        "APT_MIRANTIS_SALT_REPO={{ user `apt_mirantis_salt_repo` }}",
+        "PACKER_OFFLINE_BUILD=true"
       ],
       "type": "shell",
       "execute_command": "chmod +x {{ .Path }}; {{ .Vars }} {{ .Path }}",
@@ -119,6 +120,7 @@
       "vm_name": "{{ user `image_name` }}-{{ isotime \"200601021504\"  }}",
       "output_directory": "images/{{ user `image_name` }}-qemu-{{ isotime \"200601021504\"  }}",
       "format": "qcow2",
+      "disk_compression": true,
       "iso_checksum": "566efef1d6f12e7d3a994c2405bdb642",
       "iso_checksum_type": "md5",
       "iso_url": "http://cloud-images.ubuntu.com/releases/xenial/release-20180306/ubuntu-16.04-server-cloudimg-amd64-disk1.img",
@@ -128,6 +130,8 @@
       "headless": true,
       "ssh_username": "{{user `user`}}",
       "ssh_password": "{{user `password`}}",
+      "ssh_host_port_min": 7000,
+      "ssh_host_port_max": 7050,
       "shutdown_command": "shutdown -P now",
       "boot_wait": "2s",
       "ssh_wait_timeout": "360s"