I am absolute not into Linux system administration (I am a software developer) and I have the following question for you about services.
On an Ubuntu 18.04.2 LTS machine there is installed a software as service. I mean that I can run it performing this statment in the shell:
sudo service wso2ei start
and I have the service configuration file into:
/etc/systemd/system/wso2ei.service
that contains something like this:
[Unit]
Description=WSO2EI
After=syslog.target
After=network.target
[Service]
Type=simple
WorkingDirectory=/usr/lib/wso2/wso2ei/6.4.0
User=root
Group=nogroup
Environment=JAVA_HOME=/usr/lib/wso2/wso2ei/6.4.0/jdk/jdk1.8.0_192
Environment=CARBON_HOME=/usr/lib/wso2/wso2ei/6.4.0
StandardOutput=syslog
StandardError=syslog
ExecStart=/usr/lib/wso2/wso2ei/6.4.0/bin/integrator.sh
ExecStop=/usr/lib/wso2/wso2ei/6.4.0/integrator.sh stop
#TimeoutSec=130
[Install]
WantedBy=multi-user.target
it is working fine and I can start and stop the service by the following statments:
sudo service wso2ei start
and
sudo service wso2ei stopt
So this service is working fine...but...I tried to list all the services by this stament:
service --status-all
I expected to find my wso2ei service into the output list but there isn't !!!
This is my output:
$ sudo service --status-all
[ - ] acpid
[ + ] apparmor
[ + ] apport
[ + ] atd
[ + ] cntlm
[ - ] console-setup.sh
[ + ] cron
[ - ] cryptdisks
[ - ] cryptdisks-early
[ + ] dbus
[ + ] ebtables
[ + ] grub-common
[ - ] hwclock.sh
[ + ] irqbalance
[ + ] iscsid
[ - ] keyboard-setup.sh
[ + ] kmod
[ - ] lvm2
[ + ] lvm2-lvmetad
[ + ] lvm2-lvmpolld
[ + ] lxcfs
[ - ] lxd
[ - ] mdadm
[ - ] mdadm-waitidle
[ - ] ntp
[ - ] open-iscsi
[ - ] open-vm-tools
[ - ] plymouth
[ - ] plymouth-log
[ + ] procps
[ - ] rsync
[ + ] rsyslog
[ - ] screen-cleanup
[ + ] ssh
[ + ] udev
[ - ] ufw
[ + ] unattended-upgrades
[ - ] uuidd
$
Why my wso2ei is not in this list? What is wrong? What am I missing?
Moreover: if I check the status of this particular service I obtain this output:
$ sudo service wso2ei status
● wso2ei.service - WSO2EI
Loaded: loaded (/etc/systemd/system/wso2ei.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2019-10-11 21:03:06 CEST; 1 day 22h ago
Process: 56854 ExecStop=/usr/lib/wso2/wso2ei/6.4.0/integrator.sh stop (code=exited, status=203/EXEC)
Main PID: 56912 (integrator.sh)
Tasks: 179 (limit: 9486)
CGroup: /system.slice/wso2ei.service
├─56912 /bin/sh /usr/lib/wso2/wso2ei/6.4.0/bin/integrator.sh
└─56958 /usr/lib/wso2/wso2ei/6.4.0/jdk/jdk1.8.0_192/bin/java -Xbootclasspath/a: -Xms256m -Xmx1024m -XX:+HeapDumpOnOutOfMemoryError -X
So I think that the service statment find the wso2ei service in some way.
I think that I am missing something...
According to the manpage
shows
There can you see the listed services from sysvinit system.
You wrote an systemd unit, they can be listed with:
Add the
--user
flag to these commands if you want to list the current user’s units instead of the system ones.