| # Copyright 2018 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| description "Chrome OS Machine Learning service" |
| author "chromium-os-dev@chromium.org" |
| |
| # This daemon is started by D-Bus service activation configured in |
| # ml/dbus/org.chromium.MachineLearning.service. |
| stop on stopping system-services |
| expect fork |
| |
| pre-start script |
| mkdir -m 0755 -p /var/lib/ml_service/metrics |
| chown -R ml-service:ml-service /var/lib/ml_service |
| |
| # Check if system-services is still running before starting ml-service. |
| # This is to prevent new dbus-activated instances from getting started once |
| # the system is beginning to shut down. |
| if ! initctl status system-services | grep -q running; then |
| stop |
| exit 0 |
| fi |
| end script |
| |
| # --profile=minimalistic-mountns Mount namespace with basic mounts |
| # includes /var/empty, /, /proc (RO), /dev/log, /tmp (tmpfs) |
| # -b /var/lib/ml_service for ml_service metrics |
| # -b /var/lib/metrics for uma metrics |
| exec minijail0 -e -i -n -p -l --uts -c 0 \ |
| --profile=minimalistic-mountns \ |
| -k tmpfs,/var,tmpfs \ |
| -k tmpfs,/run,tmpfs \ |
| -b /run/dbus \ |
| -b /var/lib/ml_service,,1 \ |
| -b /var/lib/metrics,,1 \ |
| -S /usr/share/policy/ml_service-seccomp.policy \ |
| -u ml-service -g ml-service -- /usr/bin/ml_service |
| |
| # Wait for daemon to claim its D-Bus name before transitioning to started. |
| post-start exec minijail0 -u ml-service -g ml-service /usr/bin/gdbus \ |
| wait --system --timeout 15 org.chromium.MachineLearning |