#!/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-2.9.0-1.el7_5.2.noarch.rpm
wget http://linuxsoft.cern.ch/cern/centos/7/rt/x86_64/Packages/tuned-profiles-nfv-guest-2.9.0-1.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-2.9.0-1.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
# The actual tuned-adm profile is now done in check_prox_system_setup.sh and is started through
# the check-prox-system-setup.service. This will happen when the system is booting.

# 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, will be skipped when building image with disk-image-builder. That is OK
systemctl daemon-reload
systemctl enable check-prox-system-setup.service
# Add the default rapid key as an authorized key for the rapid user
cat ${BUILD_DIR}/rapid_rsa_key.pub >> /home/rapid/.ssh/authorized_keys
popd > /dev/null 2>&1