Update 'CoreModules/generic/preconf.sh'

CoreModules/generic/preconf.sh

@@ -1,3 +1,29 @@
+##------------##
+#    System    #
+##------------##
+
+hostnamectl set-hostname $hostname
+sed -i 's/;preserve_hostname: false/preserve_hostname: true/g' /etc/cloud/cloud.cfg
+timedatectl set-timezone Europe/Amsterdam
+
+
+##----------##
+#    Swap    #
+##----------##
+
+if free | awk '/^Swap:/ {exit !$2}'; then
+    echo "swap enabled"
+else
+    fallocate -l 1G /swapfile
+    chmod 600 /swapfile
+    mkswap /swapfile
+    swapon /swapfile
+    echo '/swapfile swap swap defaults 0 0' >> /etc/fstab
+fi
+sed -i 's/#/vm.swappiness=10/g' /etc/sysctl.conf
+sed -i 's/#/vm.vfs_cache_pressure=50/g' /etc/sysctl.conf
+
+
 ##-------------##
 #    Postfix    #
 ##-------------##