playbook: Add roles/radvd to configure radvd

playbook/handlers/main.yml

+---
+
+ - name: restart re6stnet
+   service: name=re6stnet state=restarted

playbook/local-frontend.yml

@@ -2,8 +2,29 @@
   hosts: 127.0.0.1
   connection: local
 
+  vars_prompt:
+    - name: "network_prefix"
+      prompt: "RADVD Adv. Network"
+      private: no
+
   roles:
-    - { role: package, package_name: radvd, package_state: present }
+    - { role: radvd }
     - { role: package, package_name: dnsmasq, package_state: present }
 
+  tasks:
+
+  - name: Check if configuration exists already
+    stat: path=/etc/re6stnet/re6stnet.conf
+    register: re6stnet_conf
+
+  - lineinfile: dest=/etc/re6stnet/re6stnet.conf line='interface eth0' state=present
+    notify: restart re6stnet
+    when: re6stnet_conf.stat.exists == True
+
+  - lineinfile: dest=/etc/re6stnet/re6stnet.conf line='main-interface eth0' state=present
+    notify: restart re6stnet
+    when: re6stnet_conf.stat.exists == True
 
+  - lineinfile: dest=/etc/re6stnet/re6stnet.conf line='daemon "/usr/sbin/radvd -n /etc/radvd.conf"' state=present
+    notify: restart re6stnet
+    when: re6stnet_conf.stat.exists == True

playbook/roles/radvd/handlers/main.yml

+---
+
+ - name: restart re6stnet
+   service: name=re6stnet state=restarted

playbook/roles/radvd/meta/main.yml

+---
+dependencies:
+    - { role: package, package_name: radvd, package_state: present }

playbook/roles/radvd/tasks/main.yml

+ - name: copy templates
+   template: src=radvd.conf.in dest=/etc/radvd.conf mode=660

playbook/roles/radvd/templates/radvd.conf.in

+interface eth0
+{
+   AdvSendAdvert on;
+   prefix {{ network_prefix}}c000/64
+   {
+   };
+};