feat(synapse): add deployment method virtualenv

roles/synapse/defaults/main/main.yml

@@ -11,6 +11,7 @@ synapse_data_path: "{{ synapse_base_path }}/data"
 synapse_media_store_path: "{{ synapse_data_path }}/media_store"
 synapse_log_path: "/var/log/synapse"
 synapse_homeserver_log_path: "{{ synapse_log_path }}/homeserver.log"
+synapse_venv_path: "{{ synapse_base_path }}/venv"
 
 synapse_signing_key: ~
 synapse_signing_key_file: >-

roles/synapse/defaults/main/systemd.yml

@@ -0,0 +1,8 @@
+---
+synapse_systemd_service_name: "synapse.service"
+synapse_systemd_service_directory: /etc/systemd/system
+synapse_systemd_service_file: >-2
+  {{ synapse_systemd_service_directory }}/{{ synapse_systemd_service_name }}
+
+synapse_systemd_service_enabled: >-2
+  {{ (synapse_state == 'present') | bool }}

roles/synapse/defaults/main/virtualenv.yml

@@ -0,0 +1,6 @@
+---
+synapse_venv_package:
+  - synapse
+synapse_venv_pip_dependencies:
+  - pip
+  - setuptools