diff --git a/ubuntu-16.04/template.json.env b/ubuntu-16.04/template.json.env
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+# Env variables and description:
+DO_API_TOKEN
+
+# base.sh
+UBUNTU_BASEURL=http://mirror.mirantis.com/stable/ubuntu/
+
+# salt.sh
+SALTSTACK_REPO=${SALTSTACK_REPO:-"deb [arch=amd64] https://mirror.mirantis.com/stable/saltstack-2016.3/xenial/ xenial main"}
+SALTSTACK_GPG=${SALTSTACK_GPG:-"https://repo.saltstack.com/apt/ubuntu/16.04/amd64/2016.3/SALTSTACK-GPG-KEY.pub"}
+
+
+
+IMAGE_NAME # resulted openstack|qemu image name part
+
+# Openstack-related
+OS_USERNAME
+OS_PASSWORD
+OS_FLAVOR
+OS_IMAGE # base image