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diff --git a/rapidvm/dib/elements/rapid/post-install.d/70-os-cfg b/rapidvm/dib/elements/rapid/post-install.d/70-os-cfg
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+#!/usr/bin/env bash
+#
+# Copyright (c) 2021 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+BUILD_DIR="/opt/rapid"
+# huge pages to be used by DPDK
+sh -c '(echo "vm.nr_hugepages = 1024") > /etc/sysctl.conf'
+
+sh -c '(echo "options vfio enable_unsafe_noiommu_mode=1") > /etc/modprobe.d/vfio.conf'
+sh -c '(echo "vfio") > /etc/modules-load.d/vfio.conf'
+sh -c '(echo "vfio-pci") > /etc/modules-load.d/vfio.conf'
+# Enabling tuned with the realtime-virtual-guest profile
+pushd ${BUILD_DIR} > /dev/null 2>&1
+#wget http://linuxsoft.cern.ch/cern/centos/7/rt/x86_64/Packages/tuned-profiles-realtime-2.8.0-5.el7_4.2.noarch.rpm
+wget http://linuxsoft.cern.ch/cern/centos/7/rt/x86_64/Packages/tuned-profiles-realtime-2.9.0-1.el7_5.2.noarch.rpm
+#wget http://linuxsoft.cern.ch/cern/centos/7/rt/x86_64/Packages/tuned-profiles-nfv-guest-2.8.0-5.el7_4.2.noarch.rpm
+wget http://linuxsoft.cern.ch/cern/centos/7/rt/x86_64/Packages/tuned-profiles-nfv-guest-2.9.0-1.el7_5.2.noarch.rpm
+# Install with --nodeps. The latest CentOS cloud images come with a tuned version higher than 2.8. These 2 packages however
+# do not depend on v2.8 and also work with tuned 2.9. Need to be careful in the future
+#rpm -ivh ${BUILD_DIR}/tuned-profiles-realtime-2.8.0-5.el7_4.2.noarch.rpm --nodeps
+#rpm -ivh ${BUILD_DIR}/tuned-profiles-nfv-guest-2.8.0-5.el7_4.2.noarch.rpm --nodeps
+rpm -ivh ${BUILD_DIR}/tuned-profiles-realtime-2.9.0-1.el7_5.2.noarch.rpm --nodeps
+rpm -ivh ${BUILD_DIR}/tuned-profiles-nfv-guest-2.9.0-1.el7_5.2.noarch.rpm --nodeps
+# Although we do no know how many cores the VM will have when begin deployed for real testing, we already put a number for the
+# isolated CPUs so we can start the realtime-virtual-guest profile. If we don't, that command will fail.
+# When the VM will be instantiated, the check_kernel_params service will check for the real number of cores available to this VM
+# and update the realtime-virtual-guest-variables.conf accordingly.
+echo "isolated_cores=1-3" | tee -a /etc/tuned/realtime-virtual-guest-variables.conf
+tuned-adm profile realtime-virtual-guest
+
+# Install the check_tuned_params service to make sure that the grub cmd line has the right cpus in isolcpu. The actual number of cpu's
+# assigned to this VM depends on the flavor used. We don't know at this time what that will be.
+chmod +x ${BUILD_DIR}/check_prox_system_setup.sh
+mv ${BUILD_DIR}/check_prox_system_setup.sh /usr/local/libexec/
+mv ${BUILD_DIR}/check-prox-system-setup.service /etc/systemd/system/
+systemctl daemon-reload
+systemctl enable check-prox-system-setup.service
+popd > /dev/null 2>&1