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mLine 1:
Line 1: − # List all running services+ − # Start/stop or enable/disable services+ + + Line 8:
Line 10: − # Check if service is enabled+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
→/etc/systemd/system/example.service
==List all running services==
sytemctl
sytemctl
watch "ps -ef|grep service"
==Start/stop or enable/disable services==
systemctl start foo.service
systemctl start foo.service
systemctl stop foo.service
systemctl stop foo.service
systemctl enable foo.service
systemctl enable foo.service
systemctl disable foo.service
systemctl disable foo.service
==Check if service is enabled==
systemctl is-enabled foo.service; echo $?
systemctl is-enabled foo.service; echo $?
Source:
Source:
[https://www.dynacont.net/documentation/linux/Useful_SystemD_commands/ Useful SystemD Commands]
[https://www.dynacont.net/documentation/linux/Useful_SystemD_commands/ Useful SystemD Commands]
==Log to syslog==
Use the following properties in your systemd service unit file:
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=<your program identifier> # without any quote
Then, assuming your distribution is using rsyslog to manage syslogs, create a file in /etc/rsyslog.d/<new_file>.conf with the following content:
if $programname == '<your program identifier>' then /path/to/log/file.log
if $programname == '<your program identifier>' then ~
==/etc/systemd/system/example.service==
[Unit]
Description=Tenkaichi Vegeta-server (Tentacle)
After=network.target
[Service]
User=tenkaichi
Group=tenkaichi
WorkingDirectory=/home/tenkaichi/vegetas-server
EnvironmentFile=/tenkaichi/vegeta-server/cfg/environment.cfg
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=Vegeta-Tentacle
Restart=always
RestartSec=3
ExecStart=/usr/local/bin/tentacle_server -o -a ${SERVER_IP} -p ${PORT} -s ${INPUT_DIR} -v -m ${MAX_SIZE} -e ${SSL_CERT} -k ${SSL_CERTKEY}
[Install]
WantedBy=multi-user.target
==Automatic restart==
Add the following lines to your service file at Service block
[Service]
...
Restart=always
RestartSec=3
...
==Wait Online==
<nowiki>[Unit]
Wants=network-online.target
After=network.target network-online.target</nowiki>
===With NetworkManager===
systemctl enable NetworkManager-wait-online
==ExecStart examples==
======Gunicorn======
ExecStart=/virtualenv/path/bin/gunicorn -w3 --timeout 300 --access-logfile /var/log/gunicorn/app-access.log --error-logfile /var/log/gunicorn/app-error.log --bind unix:/sockets/app-socket.sock App.wsgi
====Flask (superset)====
<syntaxhighlight lang="text">
ExecStart=/home/superset/.virtualenvs/superset/bin/gunicorn -w 3 -k gevent --timeout 120 -b unix:/home/superset/.superset/superset.sock --limit-request-line 0 --limit-request-field_size 0 --statsd-host localhost:8125 superset:app
</syntaxhighlight>