WireGuard: Generate QR codes (#1129)

* WireGuard: Generate QR codes

* Update client-android.md

docs/client-android.md

@@ -3,5 +3,4 @@
 ## Installation via profiles
 
 1. [Install the WireGuard VPN Client](https://play.google.com/store/apps/details?id=com.wireguard.android).
-2. Copy `wireguard/{username}.conf` to your phone's internal storage.
-3. Open the WireGuard app and add a connection using your AlgoVPN configuration file.
+2. Open QR code `configs/<ip_address>/wireguard/<username>.png` and scan it in the WireGuard app

requirements.txt

@@ -10,3 +10,4 @@ pyopenssl
 jinja2==2.8
 shade
 pycrypto
+segno

roles/wireguard/tasks/main.yml

@@ -42,6 +42,20 @@
   delegate_to: localhost
   become: false
 
+- name: Generate QR codes
+  shell: >
+    umask 077;
+    which segno &&
+    segno --scale=5 --output={{ item.1 }}.png \
+      "{{ lookup('template', 'client.conf.j2') }}" || true
+  changed_when: false
+  with_indexed_items: "{{ users }}"
+  delegate_to: localhost
+  become: false
+  args:
+    chdir: "{{ wireguard_config_path }}"
+    executable: bash
+
 - name: WireGuard enabled and started
   service:
     name: "{{ service_name }}"