bugfixes and updated go.mod

scripts/install_linux.sh

@@ -1,4 +1,27 @@
 #!/bin/sh
-useradd wiki
-mkdir /var/{lib,log}/gowiki
-chown wiki: /var/{lib,log}/gowiki
+groupadd wiki
+useradd -g wiki wiki 
+mkdir /var/lib/gowiki
+chown wiki: /var/lib/gowiki
+cat <<EOF> /etc/systemd/system/gowiki.service
+[Unit]
+Description=GoWiki
+After=syslog.target
+After=network.target
+
+[Service]
+Type=forking
+ExecStart=/usr/local/bin/gowiki server -c /etc/gowiki/gowiki.conf
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
+EOF
+cat <<EOF> /etc/gowiki/gowiki.conf
+{
+	"data_dir": "/var/lib/gowiki",
+	"secret": "$(openssl rand -hex 32)"
+}
+EOF
+systemctl enable gowiki
+systemctl start gowiki