Install Kubernetes 1.11 and go back to Ubuntu Xenial until Bionic is officially supported

roles/tinc/tasks/main.yml

@@ -10,6 +10,13 @@
     recurse: True
     state: directory
 
+- name: create /etc/tinc/nets.boot file from template
+  template:
+    src: nets.boot.j2
+    dest: /etc/tinc/nets.boot
+  notify:
+    - restart tinc
+
 - name: ensure tinc.conf contains connection to all other nodes
   template:
     src: tinc.conf.j2
@@ -117,7 +124,7 @@
 
 - name: start tinc on boot
   systemd:
-    name: "tinc@{{netname}}"
+    name: tinc
     enabled: yes
     state: started
 

roles/tinc/templates/nets.boot.j2

@@ -0,0 +1 @@
+{{ netname }}