feat: init

entrypoint.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env sh
+
+# Account configuration
+#HOST=
+#LOGIN=
+#PASSWORD=
+
+# Get current IPv4 and corresponding configured
+HOST_IP=$(dig +short $HOST A)
+CURRENT_IP=$(curl -m 5 -4 ifconfig.co 2>/dev/null)
+if [ -z $CURRENT_IP ]
+then
+  CURRENT_IP=$(dig +short myip.opendns.com @resolver1.opendns.com)
+fi
+CURRENT_DATETIME=$(date -R)
+
+# Update dynamic IPv4, if needed
+if [ -z $CURRENT_IP ] || [ -z $HOST_IP ]
+then
+  echo "[$CURRENT_DATETIME]: No IP retrieved"
+else
+  if [ "$HOST_IP" != "$CURRENT_IP" ]
+  then
+    RES=$(curl --silent --show-error -m 5 -L --location-trusted --user "$LOGIN:$PASSWORD" "https://www.ovh.com/nic/update?system=dyndns&hostname=$HOST&myip=$CURRENT_IP")
+    echo "[$CURRENT_DATETIME]: IPv4 has changed - request to OVH DynHost: $RES"
+  fi
+fi