From fa359bb8b9e42d3d5cd30d92ea7c8184aa16b827 Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Wed, 20 Mar 2024 18:45:37 +0200
Subject: add failover notification mail

---
 frontends/scripts/dns-failover.ksh | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

(limited to 'frontends/scripts/dns-failover.ksh')

diff --git a/frontends/scripts/dns-failover.ksh b/frontends/scripts/dns-failover.ksh
index 6566a5e..580dc03 100644
--- a/frontends/scripts/dns-failover.ksh
+++ b/frontends/scripts/dns-failover.ksh
@@ -19,10 +19,10 @@ determine_master_and_standby () {
     fi
 
     local -i health_ok=1
-    if ! ftp -4 -o - https://$master/index.txt | grep "Welcome to $master"; then
+    if ! ftp -4 -o - https://$master/index.txt | grep -q "Welcome to $master"; then
         echo "https://$master IPv4 health check failed"
         health_ok=0
-    elif ! ftp -6 -o - https://$master/index.txt | grep "Welcome to $master"; then
+    elif ! ftp -6 -o - https://$master/index.txt | grep -q "Welcome to $master"; then
         echo "https://$master IPv6 health check failed"
         health_ok=0
     fi
@@ -112,7 +112,12 @@ main () {
     determine_master_and_standby
     for zone_file in $ZONES_DIR/*.zone; do
         failover_zone $zone_file
-    done
+    done 
 }
 
-main
+main | tee /tmp/dns-failover-notification.tmp
+
+if grep -q 'Failover.*completed' /tmp/dns-failover-notification.tmp; then
+    cat /tmp/dns-failover-notification.tmp | mail -s 'DNS failover performed' root
+    rm /tmp/dns-failover-notification.tmp
+fi
-- 
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