From ad097a5b29e068debc14f8439abe78441638e0b6 Mon Sep 17 00:00:00 2001
From: Tim Kimber <tkimber@mobius.org.uk>
Date: Tue, 15 Sep 2020 15:37:41 +0100
Subject: [PATCH] Add bad gateway retry logic to duckdns del command

---
 dns_scripts/dns_del_duckdns | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/dns_scripts/dns_del_duckdns b/dns_scripts/dns_del_duckdns
index f20c664..bdb653c 100755
--- a/dns_scripts/dns_del_duckdns
+++ b/dns_scripts/dns_del_duckdns
@@ -3,8 +3,17 @@
 # need to add your Token for duckdns below
 token=${DUCKDNS_TOKEN:-}
 domain="$1"
+i=1
 
 response=$(curl --retry 5 --silent "https://www.duckdns.org/update?domains=${domain}&token=${token}&txt=&clear=true")
+
+while [[ "${response}" == *"502 Bad Gateway"* ]] && [ $i -le 5 ]; do
+    echo "Retrying Bad Gateway response (attempt $i of 5)"
+    sleep 5
+    i=$((i+1))
+    response=$(curl --retry 5 --silent "https://www.duckdns.org/update?domains=${domain}&token=${token}&txt=&clear=true")
+done
+
 if [ "$response" != "OK" ]; then
     echo "Failed to update TXT record for ${domain} at duckdns.org (is the TOKEN valid?)"
     echo "$response"