From 1816e0de71bbcc09254877dccdb7b656aebe4cf0 Mon Sep 17 00:00:00 2001
From: Jeltz <tom.barthe+aurore@ens-paris-saclay.fr>
Date: Thu, 4 Feb 2021 01:48:40 +0100
Subject: [PATCH] WIP: support for Quagga failover

This change probably doesn't work
---
 roles/ipv6_edge_router/templates/daemons.j2   |  7 +------
 roles/router/tasks/main.yml                   |  7 +++++++
 roles/router/templates/keepalived-aurore.conf |  4 ++++
 roles/router/templates/notify-quagga.j2       | 21 +++++++++++++++++++
 4 files changed, 33 insertions(+), 6 deletions(-)
 create mode 100644 roles/router/templates/notify-quagga.j2

diff --git a/roles/ipv6_edge_router/templates/daemons.j2 b/roles/ipv6_edge_router/templates/daemons.j2
index 957a337..63557b0 100644
--- a/roles/ipv6_edge_router/templates/daemons.j2
+++ b/roles/ipv6_edge_router/templates/daemons.j2
@@ -1,10 +1,5 @@
-
-{% if 'backup' in inventory_hostname %}
-bgpd=no
-{% else %}
-zebra=yes
 bgpd=yes
-{% endif %}
+zebra=yes
 ospfd=no
 ospf6d=no
 ripd=no
diff --git a/roles/router/tasks/main.yml b/roles/router/tasks/main.yml
index 2014572..9c40df1 100644
--- a/roles/router/tasks/main.yml
+++ b/roles/router/tasks/main.yml
@@ -75,6 +75,13 @@
   notify: restart keepalived
   when: "'routeur-aurore' not in ansible_hostname"
 
+- name: install notify-quagga on routeur-aurore*
+  template:
+    src: notify-quagga.j2
+    dest: /usr/local/sbin/notify-quagga
+    mode: u=rx,g=r,o=r
+  when: "'routeur-aurore' in ansible_hostname"
+
 - name: configure keepalived for routeur-aurore*
   template:
     src: keepalived-aurore.conf
diff --git a/roles/router/templates/keepalived-aurore.conf b/roles/router/templates/keepalived-aurore.conf
index cd22a5b..78c0f49 100644
--- a/roles/router/templates/keepalived-aurore.conf
+++ b/roles/router/templates/keepalived-aurore.conf
@@ -127,5 +127,9 @@ vrrp_instance VI_ROUT_aurore_IPv6 {
         2a09:6840:50::/64 via 2a09:6840:129::5:254 dev ens18
         2a09:6840:51::/64 via 2a09:6840:129::5:254 dev ens18
   }
+
+  notify_master "/usr/local/sbin/notify-quagga master"
+  notify_backup "/usr/local/sbin/notify-quagga backup"
+  notify_fault "/usr/local/sbin/notify-quagga fault"
 }
 
diff --git a/roles/router/templates/notify-quagga.j2 b/roles/router/templates/notify-quagga.j2
new file mode 100644
index 0000000..516d0fa
--- /dev/null
+++ b/roles/router/templates/notify-quagga.j2
@@ -0,0 +1,21 @@
+#!/bin/bash
+{{ ansible_managed | comment }}
+
+if [[ $# = 0 ]]; then
+    echo "Invalid number of arguments" >&2
+    exit 1
+fi
+
+case $1 in
+  master)
+    systemctl start zebra.service
+    systemctl start bgpd.service
+    ;;
+  backup | fault)
+    systemctl stop zebra.service
+    systemctl stop bgpd.service
+    ;;
+  *)
+    echo "Invalid argument" >&2
+    exit 1
+esac