My Tech Notes

OMERO systemd units

Systemd unit for OMERO.server:

cat /lib/systemd/system/omero.service

[Unit]
Description=OMERO Server
Wants=remote-fs.target postgresql.service
After=remote-fs.target postgresql.service
   
[Service]
Type=forking
ExecStart=/etc/init.d/omero start
ExecStop=/etc/init.d/omero stop

[Install]
WantedBy=multi-user.target

Systemd unit for OMERO.web:

cat /lib/systemd/system/omero-web.service

[Unit]
Description=OMERO web
Wants=nginx.service omero.service
After=nginx.service omero.service
   
[Service]
Type=forking
ExecStart=/etc/init.d/omero-web start
ExecStop=/etc/init.d/omero-web stop

[Install]
WantedBy=multi-user.target

OMERO.web startup script /etc/init.d/omero-web

OMERO.server startup script /etc/init.d/omero

Mediaflux startup script to run the server as non-root user

The configuration file should be saved to /etc/mediaflux:

export MFLUX_HOME=/opt/mediaflux
export MFLUX_DOMAIN=system
export MFLUX_USER=manager
export MFLUX_TRANSPORT=https
export MFLUX_PORT=8443
export MFLUX_UMASK=0007
export MFLUX_ADMIN=mflux

The startup script modified from $MFLUX_HOME/bin/unix/mediaflux should be saved to /etc/init.d/mediaflux

sudo cp $MFLUX_HOME/bin/unix/mediaflux /etc/init.d/mediaflux

sudo vi /etc/init.d/mediaflux

Note: the following changes is required by systemd on Ubuntu Linux 16.04:

#!/bin/bash

# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:  2 3 4 5
# Default-Stop: 0 1 6

Note: the following changes is to run the sevice as user mflux rather than root:

start-stop-daemon --start --background --umask $MFLUX_UMASK -c $MFLUX_ADMIN --exec "${JAVA}" -- -jar $MFLUX_HOME/bin/aserver.jar application.home=$MFLUX_HOME nogui $DEBUG >> $MFLUX_HOME/volatile/logs/unix_start.log&

Start Mediaflux server on system reboot using systemd on Ubuntu Linux 16.04

Modify mediaflux script file from $MFLUX_HOME/bin/unix/mediaflux and install it to /etc/init.d/mediaflux.

create systemd unit file at /lib/systemd/system/mediaflux.service

[Unit]
Description=Mediaflux Server
After=remote-fs.target
   
[Service]
Type=forking
ExecStart=/etc/init.d/mediaflux start
ExecStop=/etc/init.d/mediaflux force-stop

[Install]
WantedBy=multi-user.target

Enable the systemd unit (so that it is called on reboot)
```
sudo systemctl enable mediaflux.service
```
Start the service manually(without reboot)
```
sudo systemctl start mediaflux.service
```