Enforce locale when running the IPU workflow.

Some actors that are executed during the IPU workflow rely on parsing
outputs of executed commands. When the underlying system is configured
with a different locale the actors typically fail since they are looking
for specific strings in the outputs which tend to be localized.

This commit enforces locale to en_US.utf-8 via setting the LANG
environment variable, and therefore removes the need for users that
typically use different locale to set it before running leapp.

commands/preupgrade/__init__.py

@@ -50,6 +50,10 @@ def preupgrade(args):
         workflow.load_answers(answerfile_path, userchoices_path)
         until_phase = 'ReportsPhase'
         logger.info('Executing workflow until phase: %s', until_phase)
+
+        # Set the locale, so that the actors parsing command outputs that might be localized will not fail
+        os.environ['LC_ALL'] = 'en_US.UTF-8'
+        os.environ['LANG'] = 'en_US.UTF-8'
         workflow.run(context=context, until_phase=until_phase, skip_dialogs=True)
 
     logger.info("Answerfile will be created at %s", answerfile_path)

commands/upgrade/__init__.py

@@ -78,6 +78,10 @@ def upgrade(args):
     with beautify_actor_exception():
         logger.info("Using answerfile at %s", answerfile_path)
         workflow.load_answers(answerfile_path, userchoices_path)
+
+        # Set the locale, so that the actors parsing command outputs that might be localized will not fail
+        os.environ['LC_ALL'] = 'en_US.UTF-8'
+        os.environ['LANG'] = 'en_US.UTF-8'
         workflow.run(context=context, skip_phases_until=skip_phases_until, skip_dialogs=True,
                      only_with_tags=only_with_tags)