systemd job in deploy docs

doc/production/first-deploy.md

@@ -103,7 +103,7 @@ server to see what problems show up:
 
 #### Upstart service for delayed_worker:
 
-Put the following code into `/etc/init/metamaps_delayed_worker.conf`:
+If your system uses upstart for init scripts, put the following code into `/etc/init/metamaps_delayed_job.conf`:
 
     description "Delayed Jobs Worker for Metamaps"
     
@@ -128,3 +128,30 @@ Then start the service and check the last ten lines of the log file to make sure
 
     sudo service metamaps_delayed_job start
     tail /var/log/upstart/metamaps_delayed_job.log
+
+#### Systemd service for delayed_worker:
+
+If your system uses systemd for init scripts, ptu the following code into `/etc/systemd/system/metamaps_delayed_job.service`:
+
+    [Unit]
+    Description=metamaps delayed job service
+    After=network-online.target
+
+    [Service]
+    ExecStart=/usr/local/rvm/gems/ruby-2.3.0@metamaps/bin/bundle exec rails jobs:work
+    WorkingDirectory=/home/metamaps/metamaps
+    Restart=always
+    User=metamaps
+    Group=metamaps
+    Environment=HOME=/home/metamaps
+    Environment=PATH="/usr/local/rvm/gems/ruby-2.3.0@metamaps/bin:/usr/local/rvm/gems/ruby-2.3.0@global/bin:/usr/local/rvm/rubies/ruby-2.3.0/bin:/usr/local/rvm/bin:/usr/local/bin:/usr/bin:/bin"
+    Environment=GEM_PATH="/usr/local/rvm/gems/ruby-2.3.0@metamaps:/usr/local/rvm/gems/ruby-2.3.0@global"
+    Environment=RAILS_ENV="production"
+
+    [Install]
+    WantedBy=multi-user.target
+
+Then start the service and check the last ten lines of the log file to make sure it's running OK:
+
+    sudo systemctl start metamaps_delayed_job
+    # ??? how the heck do you check systemd logs??