From 0a77bc00037c8a2a6b00eb9f807a0bda1f3f2346 Mon Sep 17 00:00:00 2001
From: Gabriel Carneiro <gabriel.chaves.carneiro@gmail.com>
Date: Mon, 18 Nov 2024 10:32:21 -0300
Subject: [PATCH] add ldap-hostname script and service

---
 usr/bin/ldap-hostname                        | 11 +++++++++++
 usr/lib/systemd/system/ldap-hostname.service | 10 ++++++++++
 2 files changed, 21 insertions(+)
 create mode 100755 usr/bin/ldap-hostname
 create mode 100644 usr/lib/systemd/system/ldap-hostname.service

diff --git a/usr/bin/ldap-hostname b/usr/bin/ldap-hostname
new file mode 100755
index 0000000..016de8b
--- /dev/null
+++ b/usr/bin/ldap-hostname
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+IP=$(hostname -I | awk '{print $1}')
+HOSTNAME=$(getent hosts | grep $IP | awk '{print $2}')
+
+if [ -n "$HOSTNAME" ]; then
+    hostnamectl set-hostname "$HOSTNAME"
+    echo "Hostname set to $HOSTNAME"
+else
+    echo "Hostname not found for IP $IP"
+fi
diff --git a/usr/lib/systemd/system/ldap-hostname.service b/usr/lib/systemd/system/ldap-hostname.service
new file mode 100644
index 0000000..143f656
--- /dev/null
+++ b/usr/lib/systemd/system/ldap-hostname.service
@@ -0,0 +1,10 @@
+[Unit]
+Description=Set hostname based on IP from LDAP
+After=network.target
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/ldap-hostname
+
+[Install]
+WantedBy=multi-user.target