# Kickstart file automatically generated by anaconda.
#version=DEVEL
install
lang en_US.UTF-8
keyboard us
text
selinux --disabled
rootpw Passw0rd
firewall --disabled
timezone --utc Asia/Shanghai
skipx
bootloader --location=mbr
zerombr
clearpart --all
part /boot --fstype=ext4  --size=1024
part swap --fstype=swap --size=8192
part / --fstype=ext4 --grow --size=200

%packages --nobase
@core
%end

%pre
#!/bin/bash
dd if=/dev/zero of=/dev/{s,v}da bs=4096 count=500
mount -o remount,rw,exec /tmp
%end

%post
sed -i 's/SELINUX=.*/SELINUX=disabled/' /etc/selinux/config
systemctl stop NetworkManager
systemctl disable NetworkManager
systemctl mask NetworkManager
sed -i 's/BOOTPROTO=.*/BOOTPROTO="static"/g' /etc/sysconfig/network-scripts/ifcfg-eth0
sed -i 's/ONBOOT=.*/ONBOOT="yes"/g' /etc/sysconfig/network-scripts/ifcfg-eth0
echo 'IPADDR=
PREFIX=
GATEWAY=
DNS1=223.5.5.5
DNS2=114.114.114.114' >> /etc/sysconfig/network-scripts/ifcfg-eth0
sed -i "s|enabled=1|enabled=0|g" /etc/yum/pluginconf.d/fastestmirror.conf

cat /dev/null > /etc/yum.repos.d/CentOS-Base.repo

cat >/etc/yum.repos.d/CentOS-Base.repo <<EOF
[base]
name=CentOS-6.9 - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.9/os/x86_64/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

#released updates 
[updates]
name=CentOS-6.9 - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.9/updates/x86_64/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

#additional packages that may be useful
[extras]
name=CentOS-6.9 - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.9/extras/x86_64/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-6.9 - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.9/centosplus/x86_64/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

#contrib - packages by Centos Users
[contrib]
name=CentOS-6.9 - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.9/contrib/x86_64/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

EOF

yum clean all

echo '
fs.file-max = 1048576
net.ipv4.ip_default_ttl = 64
net.core.wmem_default = 1746400
net.core.wmem_max = 3492800
net.core.rmem_default = 1746400
net.core.rmem_max = 3492800
net.core.netdev_max_backlog = 65535
net.core.somaxconn = 65535
net.core.optmem_max = 1024000
net.ipv4.ip_local_port_range = 1024 65535
net.ipv4.tcp_rmem = 4096 4096 16777216
net.ipv4.tcp_wmem = 4096 4096 16777216
net.ipv4.tcp_max_tw_buckets = 65535
net.ipv4.tcp_retries2 = 3
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.tcp_keepalive_intvl = 30
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_tw_reuse = 0
net.ipv4.tcp_timestamps = 0
net.ipv4.tcp_window_scaling = 0
net.ipv4.tcp_fack = 0
net.ipv4.tcp_dsack = 0
net.ipv4.tcp_mtu_probing = 1
net.ipv4.route.gc_timeout = 1000
net.ipv4.tcp_synack_retries = 1
net.ipv4.ipfrag_low_thresh = 512000
net.ipv4.ipfrag_high_thresh = 1024000
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.icmp_ignore_bogus_error_responses = 1
net.ipv4.conf.lo.secure_redirects = 1
net.ipv4.conf.default.secure_redirects = 1
net.ipv4.conf.all.secure_redirects = 1
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.all.arp_accept = 1
net.ipv4.conf.all.accept_source_route = 1
net.ipv4.conf.all.rp_filter = 1 
net.ipv4.tcp_congestion_control = reno
kernel.core_uses_pid = 1
' >> /etc/sysctl.conf

echo '
cpupower frequency-set -g performance
#SSD performance
echo 2048 > /sys/block/sd*/queue/nr_requests 
echo deadline > /sys/block/sd*/queue/scheduler
echo 4096 > /sys/block/sda/queue/read_ahead_kb
echo 200 > /sys/block/sd*/queue/iosched/read_expire
echo 400 > /sys/block/sd*/queue/iosched/write_expire
blockdev --setra 4096 /dev/sd*
echo 100 > /proc/sys/vm/dirty_background_ratio
echo 300 > /proc/sys/vm/dirty_writeback_centisecs
#limits performance
echo "* soft nofile 1048576" >> /etc/security/limits.conf
echo "* hard nofile 1048576" >> /etc/security/limits.conf
echo "* soft nproc 1048576" >> /etc/security/limits.conf
echo "* hard nproc 1048576" >> /etc/security/limits.conf
#mem performance
echo 5 > /proc/sys/vm/swappiness
echo 0 > /proc/sys/kernel/shmmax
echo never > /sys/kernel/mm/transparent_hugepage/enabled
echo never > /sys/kernel/mm/transparent_hugepage/defrag
' >> /etc/rc.local
chmod 0777 /etc/rc.local
rm -rf /root/*

cp /dev/sr0/rps-xps.sh /tmp/rps-xps.sh
cp /dev/cdrom/rps-xps.sh /tmp/rps-xps.sh
chmod 0777 /tmp/rps-xps.sh
bash /tmp/rps-xps.sh
rm -rf /tmp/rps-xps.sh

unmount -lf /dev/sr0
unmount -lf /dev/cdrom
%end