filter hosts

alpine/template

@@ -21,7 +21,12 @@ case "$remotefile" in
 esac
 
 # Read hosts from file descriptor 3 to prevent ssh from consuming stdin
-while read -r host <&3; do
+while read -r host <&3 || [ -n "$host" ]; do
+  # Strip comments (# ...) and surrounding whitespace; skip empty lines
+  host="${host%%#*}"
+  host="${host//[[:space:]]/}"
+  [ -z "$host" ] && continue
+
   host_env_file="$host_vars_dir/$host/$host.env"
 
   if [ ! -f "$host_env_file" ]; then