AutoinstallError: Disable apport reporting

Autoinstall related failures are more likely than not going to be
user caused, so we shouldn't immediately generate a crash report
for these types of failures. This should hopefully allow the user
to debug their autoinstall data much faster and reduce the number
of autoinstall-related bugs reported.

subiquity/server/autoinstall.py

@@ -0,0 +1,31 @@
+# Copyright 2024 Canonical, Ltd.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+import logging
+
+log = logging.getLogger("subiquity.server.autoinstall")
+
+
+class AutoinstallError(Exception):
+    pass
+
+
+class AutoinstallValidationError(AutoinstallError):
+    def __init__(
+        self,
+        owner: str,
+    ):
+        self.message = f"Malformed autoinstall in {owner!r} section"
+        self.owner = owner
+        super().__init__(self.message)

subiquity/server/server.py

@@ -30,7 +30,7 @@
 from subiquity.cloudinit import get_host_combined_cloud_config
 from subiquity.common.api.server import bind, controller_for_request
 from subiquity.common.apidef import API
-from subiquity.common.errorreport import ErrorReporter, ErrorReportKind
+from subiquity.common.errorreport import ErrorReport, ErrorReporter, ErrorReportKind
 from subiquity.common.serialize import to_json
 from subiquity.common.types import (
     ApplicationState,
@@ -41,7 +41,7 @@
     PasswordKind,
 )
 from subiquity.models.subiquity import ModelNames, SubiquityModel
-from subiquity.server.autoinstall import AutoinstallValidationError
+from subiquity.server.autoinstall import AutoinstallError, AutoinstallValidationError
 from subiquity.server.controller import SubiquityController
 from subiquity.server.dryrun import DRConfig
 from subiquity.server.errors import ErrorController
@@ -403,8 +403,9 @@ def note_data_for_apport(self, key, value):
     def make_apport_report(self, kind, thing, *, wait=False, **kw):
         return self.error_reporter.make_apport_report(kind, thing, wait=wait, **kw)
 
-    async def _run_error_cmds(self, report):
-        await report._info_task
+    async def _run_error_cmds(self, report: Optional[ErrorReport] = None) -> None:
+        if report is not None and report._info_task is not None:
+            await report._info_task
         Error = getattr(self.controllers, "Error", None)
         if Error is not None and Error.cmds:
             try:
@@ -421,7 +422,7 @@ def _exception_handler(self, loop, context):
             return
         report = self.error_reporter.report_for_exc(exc)
         log.error("top level error", exc_info=exc)
-        if not report:
+        if not isinstance(exc, AutoinstallError) and not report:
             report = self.make_apport_report(
                 ErrorReportKind.UNKNOWN, "unknown error", exc=exc
             )

subiquity/server/tests/test_controller.py

@@ -61,7 +61,7 @@ def test_setup_autoinstall(self, mock_load):
         mock_load.assert_called_once_with("default-data")
 
     def test_autoinstall_validation(self):
-        """Test validation error type"""
+        """Test validation error type and no apport reporting"""
 
         self.controller.autoinstall_schema = {
             "type": "object",
@@ -84,3 +84,8 @@ def test_autoinstall_validation(self):
 
         # Assert error section is based on autoinstall_key
         self.assertEquals(exception.owner, "some-key")
+
+        # Assert apport report is not created
+        # This only checks that controllers do not manually create an apport
+        # report on validation. Should also be tested in Server
+        self.controller.app.make_apport_report.assert_not_called()

subiquity/server/tests/test_server.py

@@ -160,6 +160,7 @@ async def asyncSetUp(self):
                 },
             },
         }
+        self.server.make_apport_report = Mock()
 
     def test_valid_schema(self):
         """Test that the expected autoinstall JSON schema is valid"""
@@ -179,6 +180,20 @@ def test_autoinstall_validation__error_type(self):
         with self.assertRaises(AutoinstallValidationError):
             self.server.validate_autoinstall()
 
+    async def test_autoinstall_validation__no_error_report(self):
+        """Test no apport reporting"""
+
+        exception = AutoinstallValidationError("Mock")
+
+        loop = Mock()
+        context = {"exception": exception}
+
+        with patch("subiquity.server.server.log"):
+            with patch.object(self.server, "_run_error_cmds"):
+                self.server._exception_handler(loop, context)
+
+        self.server.make_apport_report.assert_not_called()
+
 
 class TestMetaController(SubiTestCase):
     async def test_interactive_sections_not_present(self):

subiquitycore/tests/mocks.py

@@ -50,5 +50,6 @@ def make_app(model=None):
     app.log_syslog_id = None
     app.report_start_event = mock.Mock()
     app.report_finish_event = mock.Mock()
+    app.make_apport_report = mock.Mock()
 
     return app