upgrade traefik to 2.6.1

common/docker_traefik/templates/docker-compose.yml

@@ -3,12 +3,12 @@ version: '2.4'
 services:
 
     app:
-        image: traefik:v2.2
+        image: traefik:v2.6.1
         restart: always
         ports:
             - "80:80"
             - "443:443"
-{% if inventory_hostname == 'webserver' %}            - "8448:8448" 
+{% if inventory_hostname == 'webserver' %}            - "8448:8448"
 {% endif %}
             - "{{ int_ip4 }}:8080:8080"
         volumes:
@@ -25,7 +25,7 @@ services:
             timeout: 10s
             retries: 3
 
-# for debugging only            
+# for debugging only
 #    whoami:
 #        image: containous/whoami
 #        labels:
@@ -38,7 +38,7 @@ services:
 
 networks:
   web:
-    external: true    
+    external: true
   default:
     driver: bridge
     enable_ipv6: true
@@ -47,4 +47,3 @@ networks:
       config:
         # must be a ULA range
         - subnet: fd00:dead:beef:80::/64
-