Check/graph the number of processes/services/kernels that should be restarted after upgrading packages.
This is a python.d plugin for netdata. It parses output from needrestart.
When no restarts are required all charts will have a value of 0. Values higher than 0 indicate that a restart is required, or that there was an error opening/reading the log file. The chart is always visible when the plugin is installed. Any value higher than 0 will raise a warning in netdata alarms (and trigger a notification).
This plugin expects the last batch output of needrestart at /var/log/needrestart.log
# install needrestart
apt install needrestart
# clone the repository
git clone https://gitlab.com/nodiscc/netdata-needrestart
# generate the initial file
needrestart -b > /var/log/needrestart.log
# configure dpkg to refresh the file after each run
cp netdata-needrestart/etc_apt_apt.conf.d_99needrestart /etc/apt/apt.conf.d/99needrestart
# add a cron job to refresh the file every 30 minutes
cp netdata-needrestart/etc_cron.d_needrestart /etc/cron.d/needrestart
# install configuration files/alarms
netdata_install_prefix="/opt/netdata" # if netdata is installed from binary/.run script
netdata_install_prefix="" # if netdata is installed from OS packages
cp netdata-needrestart/needrestart.chart.py $netdata_install_prefix/usr/libexec/netdata/python.d/
cp netdata-needrestart/needrestart.conf $netdata_install_prefix/etc/netdata/python.d/
cp netdata-needrestart/health.d_needrestart.conf $netdata_install_prefix/etc/netdata/health.d/needrestart.conf
# restart netdata
systemctl restart netdata
No configuration is required. Common python.d plugin options can be changed in needrestart.conf.
The default update every value is 120 seconds so the initial chart will only be created after 2 minutes. Change this value if you need more accuracy.
You can get details on which services need to be restarted by reading mail sent by needrestart, running needrestart, or reading the log file.
You can schedule an automatic restart at a convenient time, for example using echo reboot | at 22:00.
To debug this plugin:
$ sudo su -s /bin/bash netdata
$ $netdata_install_prefix/usr/libexec/netdata/plugins.d/python.d.plugin 1 debug trace needrestart- Graph one line for each service/kernel, by name