Add check for corosync (#3998)

Author: michelroegl-brunner

tools/pve/post-pve-install.sh

@@ -179,8 +179,20 @@ EOF
       msg_info "Disabling high availability"
       systemctl disable -q --now pve-ha-lrm
       systemctl disable -q --now pve-ha-crm
-      systemctl disable -q --now corosync
       msg_ok "Disabled high availability"
+      CHOICE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --title "COROSYNC" --menu "Disable Corosync for a Proxmox VE Cluster?" 10 58 2 \
+        "yes" " " \
+        "no" " " 3>&2 2>&1 1>&3)
+      case $CHOICE in
+      yes)
+        msg_info "Disabling Corosync"
+        systemctl disable -q --now corosync
+        msg_ok "Disabled Corosync"
+        ;;
+      no)
+        msg_error "Selected no to Disabling Corosync"
+        ;;
+      esac
       ;;
     no)
       msg_error "Selected no to Disabling high availability"