Homarr: bind Redis to localhost only (#13552)

* Homarr: bind Redis to localhost only

* fix(homarr): make Redis bind directive idempotent

Replace unconditional append with grep guard to prevent duplicate
'bind 127.0.0.1 -::1' entries on repeated updates.

* Fix whitespace in homarr install script

Clean up minor whitespace issues in install/homarr-install.sh: remove an extra space before the here-path in the Redis config append (>>/etc/redis/redis.conf) and strip a trailing space after the nginx service name in the systemctl disable call. These are whitespace-only edits to keep the script tidy and avoid passing unintended whitespace to commands.

Author: MickLesk

ct/homarr.sh

@@ -65,6 +65,7 @@ EOF
 
     msg_info "Updating Homarr"
     cp /opt/homarr/redis.conf /etc/redis/redis.conf
+    grep -q '^bind 127.0.0.1 -::1$' /etc/redis/redis.conf || echo "bind 127.0.0.1 -::1" >> /etc/redis/redis.conf
     rm /etc/nginx/nginx.conf
     cp /opt/homarr/nginx.conf /etc/nginx/templates/nginx.conf
     msg_ok "Updated Homarr"

install/homarr-install.sh

@@ -47,6 +47,7 @@ mkdir -p /appdata/redis
 chown -R redis:redis /appdata/redis
 chmod 744 /appdata/redis
 cp /opt/homarr/redis.conf /etc/redis/redis.conf
+grep -q '^bind 127.0.0.1 -::1$' /etc/redis/redis.conf || echo "bind 127.0.0.1 -::1" >>/etc/redis/redis.conf
 rm /etc/nginx/nginx.conf
 mkdir -p /etc/nginx/templates
 cp /opt/homarr/nginx.conf /etc/nginx/templates/nginx.conf
@@ -80,7 +81,7 @@ chmod +x /opt/homarr/run.sh
 systemctl daemon-reload
 systemctl enable -q --now redis-server
 systemctl enable -q --now homarr
-systemctl disable -q --now nginx 
+systemctl disable -q --now nginx
 msg_ok "Created Services"
 
 motd_ssh