always load answers from a fixed path if it is present

bin/subiquity-tui

@@ -15,9 +15,10 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import argparse
-import sys
 import logging
+import os
 import signal
+import sys
 
 from subiquitycore.i18n import *
 from subiquitycore.log import setup_logger
@@ -70,6 +71,8 @@ def parse_options(argv):
 
 LOGDIR = "/var/log/installer/"
 
+AUTO_ANSWERS_FILE = "/subiquity_config/answers.yaml"
+
 def main():
     opts = parse_options(sys.argv[1:])
     global LOGDIR
@@ -89,6 +92,10 @@ def main():
               'Check {} for errors.'.format(LOGFILE))
         return 1
 
+    if opts.answers is None and os.path.exists(AUTO_ANSWERS_FILE):
+        logger.debug("Autoloading answers from %s", AUTO_ANSWERS_FILE)
+        opts.answers = AUTO_ANSWERS_FILE
+
     ui = SubiquityUI()
 
     try: