From b6de8fdc0604b72b28ec5236819ce82c89759605 Mon Sep 17 00:00:00 2001
From: Takashi Sogabe <tasogabe@yahoo-corp.jp>
Date: Thu, 1 Sep 2016 15:13:59 +0900
Subject: [PATCH] Keepalived leaves VIP on the host in case of accidental
 removal.

This patch removes VIPs when 'kolla-ansible destroy' is invoked.

Change-Id: I263b9bc852c7bc3448a6a15b3115b1f226071afc
Closes-Bug: #1605442
---
 ansible/roles/destroy/tasks/cleanup_host.yml |  6 +++++-
 tools/cleanup-host                           | 12 ++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/ansible/roles/destroy/tasks/cleanup_host.yml b/ansible/roles/destroy/tasks/cleanup_host.yml
index 9429eba6b1..228fb70bbd 100644
--- a/ansible/roles/destroy/tasks/cleanup_host.yml
+++ b/ansible/roles/destroy/tasks/cleanup_host.yml
@@ -1,6 +1,10 @@
 ---
 - name: Destroying Kolla host configuration
-  command: /tmp/kolla-cleanup/tools/cleanup-host
+  command: >
+    env enable_haproxy={{ enable_haproxy }}
+        kolla_internal_vip_address={{ kolla_internal_vip_address }}
+        kolla_external_vip_address={{ kolla_external_vip_address }}
+        /tmp/kolla-cleanup/tools/cleanup-host
 
 - name: Destroying kolla-cleanup folder
   file:
diff --git a/tools/cleanup-host b/tools/cleanup-host
index 909bed830b..c50a3a287a 100755
--- a/tools/cleanup-host
+++ b/tools/cleanup-host
@@ -27,6 +27,18 @@ ip -o link show | awk -F': ' '/vxlan/{print $2}' | while read -r ifname ; do
     ip link delete $ifname type vxlan
 done
 
+# Keepalived leaves VIP on the host in case of accidental removal.
+# This snippet removes VIPs.
+if [[ "$enable_haproxy" == "yes" ]]; then
+  ip -o addr list | awk '{print $2,$4}' | cut -d/ -f1 | while read -r ifname ifaddr ; do
+    if [[ "$kolla_internal_vip_address" == "$ifaddr" ||
+          "$kolla_external_vip_address" == "$ifaddr" ]]; then
+      echo "Removing VIP $ifaddr on the host"
+      ip addr delete dev $ifname $ifaddr
+    fi
+  done
+fi
+
 echo "Creating a fstab backup..."
 sudo cp /etc/fstab /etc/fstab_backup