From ffcce08f2873ca94ce1441af3a449bb23f8f4dd6 Mon Sep 17 00:00:00 2001
From: Kevin Veen-Birkenbach <kevin@veen.world>
Date: Mon, 23 Jun 2025 23:19:28 +0200
Subject: [PATCH] Added message sending for all host variable types

---
 .../templates/systemd-notifier-telegram.sh.j2      | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/roles/systemd-notifier-telegram/templates/systemd-notifier-telegram.sh.j2 b/roles/systemd-notifier-telegram/templates/systemd-notifier-telegram.sh.j2
index c2177b82..4beef8fe 100644
--- a/roles/systemd-notifier-telegram/templates/systemd-notifier-telegram.sh.j2
+++ b/roles/systemd-notifier-telegram/templates/systemd-notifier-telegram.sh.j2
@@ -1,2 +1,14 @@
 #!/bin/bash
-/usr/bin/curl -s -X POST https://api.telegram.org/bot{{ telegram_bot_token }}/sendMessage -d chat_id={{ telegram_chat_id }} -d text="service $1 on $(hostname) failed"
+
+# determine host name: try hostname command, otherwise use $HOSTNAME
+if command -v hostname &>/dev/null; then
+  host=$(hostname)
+else
+  host="$HOSTNAME"
+fi
+
+# send the Telegram message
+/usr/bin/curl -s -X POST \
+  "https://api.telegram.org/bot${telegram_bot_token}/sendMessage" \
+  -d chat_id="${telegram_chat_id}" \
+  -d text="service $1 on ${host} failed"