add systemd files

.gitignore

@@ -5,7 +5,6 @@ c
 d
 t
 agostle
-agostle.*
 *.text
 testdata/
 *.swp

etc/systemd/system/agostle.socket

@@ -0,0 +1,10 @@
+[Unit]
+Description=Agostle listening socket
+
+[Socket]
+[email protected]
+ListenStream=9500
+NoDelay=true
+
+[Install]
+WantedBy=local.target

etc/systemd/system/agostle@.service

@@ -0,0 +1,25 @@
+[Unit]
+Description=Agostle anything-to-PDF daemon
+Requires=agostle.socket
+After=network.target
+
+[Install]
+WantedBy=local.target
+
+[Service]
+Restart=always
+Environment=LOGDIR=/var/log/agostle-%i TMPDIR=/var/tmp/agostle-%i
+User=agostle
+WorkingDirectory=/home/agostle
+ExecStartPre=+/bin/mkdir -p $LOGDIR $TMPDIR
+ExecStartPre=+/bin/chown agostle $LOGDIR $TMPDIR
+ExecStartPre=-/home/agostle/agostle update
+ExecStart=/home/agostle/agostle serve
+
+NonBlocking=true
+Sockets=agostle.socket
+
+NoNewPrivileges=true
+PrivateTmp=true
+#ProtectSystem=full
+#ReadWritePaths=/var/log/agostle-%i /var/tmp/agostle-%i