uwsgi-python: add app-vars defaults file

uwsgi-python/tasks/app.yml

 ---
 
-- include_vars: "../vars/{{ app.app }}.yml"
+- include_vars: "{{ item }}"
+  with_items:
+    - "../vars/default.yml"
+    - "../vars/{{ app.app }}.yml"
   tags:
     - uwsgi-app
     - "{{ app.app }}"

uwsgi-python/vars/default.yml

+app_name: "{{ app.app }}"
+app_user: "{{ app.app }}"
+app_group: "{{ app.app }}"
+app_home: "/var/www/{{ app.app }}"
+app_path: "/var/www/{{ app.app }}"
+app_python_version: 3
+app_venv: "/var/www/{{ app.app }}/venv/"
+app_program: "{{ app.app }}.py"
+app_callable: app
+app_command: ""
+app_mountpoint: /
+app_service_env: []
+app_mules: 0
+app_enable_threads: false
+app_harakiri: 5
+app_uwsgi_options: []
+
+app_db_name: ''
+app_db_type: ''
+
+app_additional_software: []
+
+app_deploy_key: "{{ inventory_dir }}/files/deploy-keys/{{ app.app }}"
+app_git_url: ""
+app_git_version: HEAD
+
+app_requirements_file: requirements.txt
+app_config_file: config.py
+app_secret_config: true
+app_secret_config_keys: []
+