Log compose errors to a separate file

src/middlewared/middlewared/plugins/apps/compose_utils.py

@@ -1,4 +1,5 @@
 import itertools
+import logging
 import typing
 
 from middlewared.service_exception import CallError
@@ -7,6 +8,9 @@
 from .utils import PROJECT_PREFIX, run
 
 
+logger = logging.getLogger('app_lifecycle')
+
+
 def compose_action(
     app_name: str, app_version: str, action: typing.Literal['up', 'down', 'pull'], *,
     force_recreate: bool = False, remove_orphans: bool = False, remove_images: bool = False,
@@ -49,4 +53,7 @@ def compose_action(
     # TODO: We will likely have a configurable timeout on this end
     cp = run(['docker', 'compose'] + compose_files + args, timeout=1200)
     if cp.returncode != 0:
-        raise CallError(f'Failed {action!r} action for {app_name!r} app: {cp.stderr}')
+        logger.error('Failed %r action for %r app: %s', action, app_name, cp.stderr)
+        raise CallError(
+            f'Failed {action!r} action for {app_name!r} app, please check /var/log/app_lifecycle.log for more details'
+        )