[Re6st script] Migration script to re6st is not needed

  This script is risky, and the number of legacy servers with openvpn
  is small, so manual migration is more worth.

  SlapOS should not depends on re6st in any sense.

obs/slapos-node/Makefile

@@ -10,7 +10,6 @@ install: all
 	cd slapos; make install
 	mkdir -p $(DESTDIR)/usr/bin/
 	mkdir -p $(DESTDIR)/usr/sbin/
-	cp slapos-re6st-setup $(DESTDIR)/usr/sbin/
 	cp slapos-tweak $(DESTDIR)/usr/sbin/
 	cp $(DESTDIR)/opt/slapos/bin/slapos $(DESTDIR)/usr/bin/
 	mkdir -p $(DESTDIR)/etc/opt/slapos/

obs/slapos-node/slapos-re6st-setup

-#!/bin/bash -e 
-
-SLAPOS_CFG_PATH=/etc/opt/slapos/slapos.cfg
-
-if [ -z "$COMPUTERNAME" ]; then
-  if [ -z "$1" ]; then
-    echo " [ERROR] Use re6st-setup.sh COMPUTERNAME or Please export COMPUTERNAME= variable, and rerun the script, it is mandatory for re6st setup script"
-    exit 1
-  fi
-  export COMPUTERNAME=$1
-fi
-
-
-function re6st_conf_repos
-{
-    if [ ! -f /usr/bin/re6st-conf ]; then
-      if [ -f /usr/bin/zypper ]; then
-        zypper addrepo http://git.erp5.org/dist/rpm/ git.erp5.org
-        zypper update
-        zypper install re6stnet
-      else
-        if [ -f /usr/bin/apt-get ]; then
-          if [ ! -f /etc/apt/sources.list.d/git.erp5.org.list ]; then 
-            gpg --keyserver subkeys.pgp.net --recv-keys 1A716324
-            gpg --export 1A716324 | apt-key add -
-
-            echo "deb http://git.erp5.org/dist/deb ./" > /etc/apt/sources.list.d/git.erp5.org.list
-          fi
-          apt-get update
-          apt-get install -y re6stnet
-        else
-          echo "[ERROR] Unable to install re6st package, no apt-get or zypper found"
-          exit 1
-        fi
-      fi
-    fi
-}
-
-
-function re6st_conf_generation
-{
-    if [ ! -f /etc/re6stnet/re6stnet.conf ]; then
-      re6st_conf_repos
-      # Generate re6st configuration
-      REGISTRY="http://re6stnet.nexedi.com"
-      re6st-conf -d /etc/re6stnet --registry $REGISTRY -r title $COMPUTERNAME --anonymous
-      echo "File /etc/re6stnet/re6stnet.conf generated"
-      echo "You now need to reboot your server manually for the changes to take\
-effect"
-    fi
-}
-
-function remove_VPN_conf
-{
-    # Remove VPN configuration
-    if [ -e /etc/openvpn/vifib.conf ]; then
-        mv /etc/openvpn/vifib.conf /etc/openvpn/vifib.conf.disabled`date`
-        echo "Removed vifib OpenVPN configuration files"
-    fi
-
-    # Remove VPN configuration
-    if [ -e /etc/openvpn/vifib.backup.conf ]; then
-        mv /etc/openvpn/vifib.backup.conf /etc/openvpn/vifib.backup.conf.disabled`date`
-        echo "Removed vifib OpenVPN configuration files"
-    fi
-
-    if [ -e /etc/opt/slapos/openvpn-needed ]; then
-        rm /etc/opt/slapos/openvpn-needed
-        echo "Removed /etc/opt/slapos/openvpn-needed"
-    fi
-    echo "###################################################################################################"
-    echo "WARNING: RESTART OpenVPN can cut your access out, if you are connected via tapVPN IPv6 address!!!!!"
-    echo "###################################################################################################"
-}
-
-function modify_interfaces_in_SlapOS_conf
-{
-    # Modify slapos.cfg to use lo
-    cp $SLAPOS_CFG_PATH $SLAPOS_CFG_PATH.old
-    echo "Copied old slapos.cfg to $SLAPOS_CFG_PATH.old"
-
-    sed 's/\(interface_name =\).*/\1 lo/g' $SLAPOS_CFG_PATH.old > $SLAPOS_CFG_PATH.tmp
-    sed 's/.*ipv6_interface =.*//g' $SLAPOS_CFG_PATH.tmp > $SLAPOS_CFG_PATH
-    rm $SLAPOS_CFG_PATH.tmp
-}
-
-#XXX Vivien: fugly logic, feel free to modify it if you can do better
-#            or if install/upgrade procedure was simplified
-if [ ! -e /etc/re6stnet/re6stnet.conf ]; then
-    if [ -e $SLAPOS_CFG_PATH ]; then
-        # In case of an upgrade test for native ipv6 inside slapos.cfg
-        # Only migrates if tapVPN is used.
-        if grep -qe "ipv6_interface = tapVPN" $SLAPOS_CFG_PATH && ! grep -qe "#ipv6_interface" $SLAPOS_CFG_PATH; then
-            # If using vifib VPN
-            remove_VPN_conf
-
-            modify_interfaces_in_SlapOS_conf
-
-            re6st_conf_generation
-        else
-            # Manual configuration by user before upgrade
-            echo "You seem to have no separate interface for ipv6, please proceed \
-with the configuration of re6st and SlapOS Node by yourself."
-        fi
-    else
-        # New node
-        re6st_conf_generation
-    fi
-else
-  echo "WARNING: /etc/re6stnet/re6stnet.conf is present on your system, skip to run. Please check your existing configuration."
-fi