Update debian package to fix systemd disabling (not good for remote systems) and add group yggdrasil for admin socket/conf

contrib/deb/generate.sh

@@ -71,29 +71,39 @@ etc/systemd/system/*.service etc/systemd/system
 EOF
 cat > /tmp/$PKGNAME/debian/postinst << EOF
 #!/bin/sh
+
+if ! getent group yggdrasil 2>&1 > /dev/null; then
+  addgroup --system --quiet yggdrasil
+fi
+
 if [ -f /etc/yggdrasil.conf ];
 then
   mkdir -p /var/backups
   echo "Backing up configuration file to /var/backups/yggdrasil.conf.`date +%Y%m%d`"
   cp /etc/yggdrasil.conf /var/backups/yggdrasil.conf.`date +%Y%m%d`
-  echo "Normalising /etc/yggdrasil.conf"
+  echo "Normalising and updating /etc/yggdrasil.conf"
   /usr/bin/yggdrasil -useconffile /var/backups/yggdrasil.conf.`date +%Y%m%d` -normaliseconf > /etc/yggdrasil.conf
-fi
-if command -v systemctl >/dev/null; then
-  systemctl daemon-reload >/dev/null || true
-  if [ -f /etc/systemd/system/multi-user.target.wants/yggdrasil.service ]; then
-    echo "Starting Yggdrasil"
+  chgrp yggdrasil /etc/yggdrasil.conf
+
+  if command -v systemctl >/dev/null; then
+    systemctl daemon-reload >/dev/null || true
+    systemctl enable yggdrasil || true
     systemctl start yggdrasil || true
   fi
+else
+  echo "Generating initial configuration file /etc/yggdrasil.conf"
+  echo "Please familiarise yourself with this file before starting Yggdrasil"
+  /usr/bin/yggdrasil -genconf > /etc/yggdrasil.conf
+  chgrp yggdrasil /etc/yggdrasil.conf
 fi
 EOF
 cat > /tmp/$PKGNAME/debian/prerm << EOF
 #!/bin/sh
 if command -v systemctl >/dev/null; then
   if systemctl is-active --quiet yggdrasil; then
-    echo "Stopping Yggdrasil"
     systemctl stop yggdrasil || true
   fi
+  systemctl disable yggdrasil || true
 fi
 EOF