DAQD systemd service updates

* Use advligorts user for all services
* Move all transport to a single template service, e.g.:

    rts-transport@cps_xmit.service rts-transport@dix_recv.service

  This eases management, since they're all usign the same config.

* Source environment for command line arguments from:

    /etc/advligorts/systemd_env

  and additionally for transport and local_dc

    /etc/advligorts/systemd_env_%H

  These are systemd env files (see systemd.exec(5)), not shell, and
  command line arguments should be specified in LOWER CASE variables,
  e.g.:

    local_dc_args=...
    cps_xmit_args=...
    dix_recv_args=...
    standalone_edc_args=...

support/systemd/rts-cps_xmit.service

-[Unit]
-Description=Advanced LIGO RTS pub/sub transmitter
-After=network-online.target
-
-[Service]
-User=controls
-EnvironmentFile=/etc/advligorts/env
-ExecStart=/usr/bin/cps_xmit $CPS_XMIT_ARGS
-Restart=always
-RestartSec=5
-
-[Install]
-WantedBy=multi-user.target

support/systemd/rts-daqd.service

 [Unit]
-Description=Advanced LIGO RTS DAQD
+Description=Advanced LIGO RTS data acquisition daemon
 After=network-online.target
 
 [Service]
-User=controls
+User=advligorts
 ExecStart=/usr/bin/daqd -c /etc/advligorts/daqdrc
 Restart=always
 

support/systemd/rts-dix_recv.service

-[Unit]
-Description=Advanced LIGO RTS Dolphin IX receiver
-After=network-online.target
-
-[Service]
-User=controls
-EnvironmentFile=/etc/advligorts/env
-ExecStart=/usr/bin/dix_recv $DIX_RECV_ARGS
-Restart=always
-RestartSec=5
-
-[Install]
-WantedBy=multi-user.target

support/systemd/rts-dix_xmit.service

-[Unit]
-Description=Advanced LIGO RTS Dolphin IX transmitter
-After=network-online.target
-
-[Service]
-User=controls
-EnvironmentFile=/etc/advligorts/env
-ExecStart=/usr/bin/dix_xmit $DIX_XMIT_ARGS
-Restart=always
-RestartSec=5
-
-[Install]
-WantedBy=multi-user.target

support/systemd/rts-edc.service

@@ -3,8 +3,9 @@ Description=Advanced LIGO RTS stand-alone EPICS data concentrator
 After=network-online.target
 
 [Service]
-EnvironmentFile=/etc/advligorts/env
-ExecStart=/usr/bin/standalone_edc -i /etc/advligorts/edc.ini -I 0.0.0.0:9000 $STANDALONE_EDC_ARGS
+User=advligorts
+EnvironmentFile=-/etc/advligorts/systemd_env
+ExecStart=/usr/bin/standalone_edc -i /etc/advligorts/edc.ini -I 0.0.0.0:9000 $standalone_edc_args
 Restart=always
 
 [Install]

support/systemd/rts-local_dc.service

@@ -3,9 +3,10 @@ Description=Advanced LIGO RTS local data concentrator
 After=network-online.target
 
 [Service]
-User=controls
-EnvironmentFile=/etc/advligorts/env
-ExecStart=/usr/bin/local_dc $LOCAL_DC_ARGS
+User=advligorts
+EnvironmentFile=-/etc/advligorts/systemd_env
+EnvironmentFile=-/etc/advligorts/systemd_env_%H
+ExecStart=/usr/bin/local_dc $local_dc_args
 Restart=always
 RestartSec=5
 

support/systemd/rts-omx_recv.service

-[Unit]
-Description=Advanced LIGO RTS OpenMX receiver
-After=network-online.target
-
-[Service]
-User=controls
-EnvironmentFile=/etc/advligorts/env
-ExecStart=/usr/bin/omx_recv $OMX_RECV_ARGS
-Restart=always
-RestartSec=5
-
-[Install]
-WantedBy=multi-user.target

support/systemd/rts-omx_xmit.service

-[Unit]
-Description=Advanced LIGO RTS OpenMX transmitter
-After=network-online.target
-
-[Service]
-User=controls
-EnvironmentFile=/etc/advligorts/env
-ExecStart=/usr/bin/omx_xmit $OMX_XMIT_ARGS
-Restart=always
-RestartSec=5
-
-[Install]
-WantedBy=multi-user.target

support/systemd/rts-run_number.service

 [Unit]
-Description=Ensure the run number server is running
-After=network.target
+Description=Advanced LIGO RTS run number server
+After=network-online.target
 
 [Service]
-User=controls
-Group=controls
-ExecStart=/usr/bin/run_number_server -v
-WorkingDirectory=/var/lib/run_number
+User=advligorts
+StateDirectory=advligorts
+ExecStart=/usr/bin/run_number_server -v --file $STATE_DIRECTORY/run_number
 Restart=on-failure
 
 [Install]

support/systemd/rts-cps_recv.service → support/systemd/rts-transport@.service

 [Unit]
-Description=Advanced LIGO RTS pub/sub receiver
+Description=Advanced LIGO RTS DAQD transport
 After=network-online.target
 
 [Service]
-User=controls
-EnvironmentFile=/etc/advligorts/env
-ExecStart=/usr/bin/cps_recv $CPS_RECV_ARGS
+User=advligorts
+EnvironmentFile=-/etc/advligorts/systemd_env
+EnvironmentFile=-/etc/advligorts/systemd_env_%H
+ExecStart=/usr/bin/%i $%i_args
 Restart=always
 RestartSec=5
 

support/systemd/rts-zmq_recv.service

-[Unit]
-Description=Advanced LIGO RTS ZeroMQ receiver
-After=network-online.target
-
-[Service]
-User=controls
-EnvironmentFile=/etc/advligorts/env
-ExecStart=/usr/bin/zmq_recv $ZMQ_RECV_ARGS
-Restart=always
-RestartSec=5
-
-[Install]
-WantedBy=multi-user.target

support/systemd/rts-zmq_xmit.service

-[Unit]
-Description=Advanced LIGO RTS ZeroMQ transmitter
-After=network-online.target
-
-[Service]
-User=controls
-EnvironmentFile=/etc/advligorts/env
-ExecStart=/usr/bin/zmq_xmit $ZMQ_XMIT_ARGS
-Restart=always
-RestartSec=5
-
-[Install]
-WantedBy=multi-user.target