Move variables from vars to default

Default vars have less precedence than vars/
The variable should have the less precedent in
order to be easily overide by a config file or a
cli args

Change-Id: I12ca26127d550f1faf67c481d7f7f50ad13ca190

defaults/main.yml

@@ -1,2 +1,18 @@
 ---
 # defaults file for tripleo-upgrade
+# main vars:
+working_dir: "{{ lookup('env', 'HOME') }}"
+
+#rc files:
+undercloud_rc: "{{ working_dir }}/stackrc"
+overcloud_rc: "{{ working_dir }}/overcloudrc"
+
+# upgrade jinja template name:
+undercloud_upgrade_template: undercloud_upgrade.sh.j2
+
+# upgrade scripts name:
+undercloud_upgrade_script: "{{ working_dir }}/undercloud_upgrade.sh"
+overcloud_deploy_script: "{{ working_dir }}/overcloud_deploy.sh"
+overcloud_composable_upgrade_script: "{{ working_dir }}/composable_docker_upgrade.sh"
+overcloud_converge_upgrade_script: "{{ working_dir }}/converge_docker_upgrade.sh"
+

tasks/create-scripts.yaml

@@ -1,7 +1,7 @@
 ---
 - name: create undercloud upgrade script
   template:
-    src: undercloud_upgrade.sh.j2
+    src: "{{ undercloud_upgrade_template }}"
     dest: "{{ undercloud_upgrade_script }}"
 
 - name: create composable upgrade scripts

vars/main.yml

@@ -1,8 +1,2 @@
 ---
 # vars file for tripleo-upgrade
-overcloud_deploy_script: "~/overcloud_deploy.sh"
-undercloud_upgrade_script: "~/undercloud_upgrade.sh"
-overcloud_composable_upgrade_script: "~/composable_docker_upgrade.sh"
-overcloud_converge_upgrade_script: "~/converge_docker_upgrade.sh"
-undercloud_rc: "~/stackrc"
-overcloud_rc: "~/overcloudrc"