kamailio/debian/ngcp-kamailio.kamailio-proxy@.service

[Unit]
Description=Kamailio (OpenSER) - the Open Source SIP Server, Proxy
After=mariadb.service
After=network-online.target
After=remote-fs.target
Requires=network-online.target
Wants=remote-fs.target
Requires=mariadb.service

[Service]
Type=notify
User=kamailio
Group=kamailio
RuntimeDirectory=kamailio
RuntimeDirectoryMode=0750
RuntimeDirectoryPreserve=yes
PIDFile=/run/kamailio/kamailio.proxy.%i.pid
Environment='CFGFILE=/etc/kamailio/proxy_%i/kamailio.cfg'
# Values of SHM_MEMORY=125 and PKG_MEMORY=32 taken from old sysvinit file
# Amount of shared memory to allocate for the running Kamailio server (in MiB)
Environment='SHM_MEMORY=125'
# Amount of private memory for each Kamailio process (in MiB)
Environment='PKG_MEMORY=32'
# -DD means to not daemonise
ExecStart=/usr/sbin/kamailio -P /run/kamailio/kamailio.proxy.%i.pid -f $CFGFILE -m $SHM_MEMORY -M $PKG_MEMORY -DD
Restart=on-abort
LimitMEMLOCK=infinity
LimitNOFILE=16384

[Install]
WantedBy=multi-user.target