fedora-kickstarts/fedora-cloud-base.ks

# This is a basic Fedora 20 spin designed to work in OpenStack and other
# private cloud environments. It's configured with cloud-init so it will
# take advantage of ec2-compatible metadata services for provisioning ssh
# keys. Cloud-init creates a user account named "fedora" with passwordless
# sudo access. The root password is empty and locked by default.
#
# Note that unlike the standard F20 install, this image has /tmp on disk
# rather than in tmpfs, since memory is usually at a premium.
#
# This kickstart file is designed to be used with appliance-creator and
# may need slight modification for use with actual anaconda or other tools.
# We intend to target anaconda-in-a-vm style image building for F20.

lang en_US.UTF-8
keyboard us
timezone --utc Etc/UTC

auth --useshadow --enablemd5
selinux --enforcing
rootpw --lock --iscrypted locked

# this is actually not used, but a static firewall
# matching these rules is generated below.
firewall --service=ssh

bootloader --timeout=1 --append="console=ttyS0,115200n8 console=tty0" extlinux

network --bootproto=dhcp --device=eth0 --onboot=on
services --enabled=network,sshd,rsyslog,iptables,cloud-init,cloud-init-local,cloud-config,cloud-final


zerombr
clearpart --all
part / --size 2048 --fstype ext4

%include fedora-repo.ks


reboot

# Package list.
%packages
@core
grubby

# cloud-init does magical things with EC2 metadata, including provisioning
# a user account with ssh keys.
cloud-init

# this is used by openstack's cloud orchestration framework (and it's small)
heat-cfntools

# need this for growpart, because parted doesn't yet support resizepart
# https://bugzilla.redhat.com/show_bug.cgi?id=966993
cloud-utils-growpart

# We need this image to be portable; also, rescue mode isn't useful here.
dracut-config-generic
-dracut-config-rescue

syslinux-extlinux 

# Needed initially, but removed below.
firewalld

# Basic firewall. If you're going to rely on your cloud service's
# security groups you can remove this.
iptables-services

# cherry-pick a few things from @standard
tar
rsync

# Some things from @core we can do without in a minimal install
-biosdevname
-plymouth
-NetworkManager
-iprutils
-kbd

%end



%post --erroronfail

# Create grub.conf for EC2. This used to be done by appliance creator but
# anaconda doesn't do it. And, in case appliance-creator is used, we're
# overriding it here so that both cases get the exact same file.
# Note that the console line is different -- that's because EC2 provides
# different virtual hardware, and this is a convenient way to act differently
echo -n "Creating grub.conf for pvgrub"
rootuuid=$( awk '$2=="/" { print $1 };'  /etc/fstab )
mkdir /boot/grub
echo -e 'default=0\ntimeout=0\n\n' > /boot/grub/grub.conf
for kv in $( ls -1v /boot/vmlinuz* |grep -v rescue |sed s/.*vmlinuz-//  ); do
  echo "title Fedora ($kv)" >> /boot/grub/grub.conf
  echo -e "\troot (hd0)" >> /boot/grub/grub.conf
  echo -e "\tkernel /boot/vmlinuz-$kv ro root=$rootuuid console=hvc0 LANG=en_US.UTF-8" >> /boot/grub/grub.conf
  echo -e "\tinitrd /boot/initramfs-$kv.img" >> /boot/grub/grub.conf
  echo
done


#link grub.conf to menu.lst for ec2 to work
echo -n "Linking menu.lst to old-style grub.conf for pv-grub"
ln -sf grub.conf /boot/grub/menu.lst
ln -sf /boot/grub/grub.conf /etc/grub.conf

# older versions of livecd-tools do not follow "rootpw --lock" line above
# https://bugzilla.redhat.com/show_bug.cgi?id=964299
passwd -l root

# Kickstart specifies timeout in seconds; syslinux uses 10ths.
# 0 means wait forever, so instead we'll go with 1.
sed -i 's/^timeout 10/timeout 1/' /boot/extlinux/extlinux.conf

# setup systemd to boot to the right runlevel
echo -n "Setting default runlevel to multiuser text mode"
rm -f /etc/systemd/system/default.target
ln -s /lib/systemd/system/multi-user.target /etc/systemd/system/default.target
echo .

# If you want to remove rsyslog and just use journald, remove this!
echo -n "Disabling persistent journal"
rmdir /var/log/journal/ 
echo . 

# this is installed by default but we don't need it in virt
echo "Removing linux-firmware package."
yum -C -y remove linux-firmware

# Remove firewalld; was supposed to be optional in F18+, but is required to
# be present for install/image building.
echo "Removing firewalld."
yum -C -y remove firewalld --setopt="clean_requirements_on_remove=1"

# Non-firewalld-firewall
echo -n "Writing static firewall"
cat <<EOF > /etc/sysconfig/iptables
# Simple static firewall loaded by iptables.service. Replace
# this with your own custom rules, run lokkit, or switch to 
# shorewall or firewalld as your needs dictate.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m conntrack --ctstate NEW -m tcp -p tcp --dport 22 -j ACCEPT
#-A INPUT -m conntrack --ctstate NEW -m tcp -p tcp --dport 80 -j ACCEPT
#-A INPUT -m conntrack --ctstate NEW -m tcp -p tcp --dport 443 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
EOF
echo .

# Another one needed at install time but not after that, and it pulls
# in some unneeded deps (like, newt and slang)
echo "Removing authconfig."
yum -C -y remove authconfig --setopt="clean_requirements_on_remove=1"

echo -n "Getty fixes"
# although we want console output going to the serial console, we don't
# actually have the opportunity to login there. FIX.
# we don't really need to auto-spawn _any_ gettys.
sed -i '/^#NAutoVTs=.*/ a\
NAutoVTs=0' /etc/systemd/logind.conf

echo -n "Network fixes"
# initscripts don't like this file to be missing.
cat > /etc/sysconfig/network << EOF
NETWORKING=yes
NOZEROCONF=yes
EOF

# For cloud images, 'eth0' _is_ the predictable device name, since
# we don't want to be tied to specific virtual (!) hardware
rm -f /etc/udev/rules.d/70*
ln -s /dev/null /etc/udev/rules.d/80-net-name-slot.rules

# simple eth0 config, again not hard-coded to the build hardware
cat > /etc/sysconfig/network-scripts/ifcfg-eth0 << EOF
DEVICE="eth0"
BOOTPROTO="dhcp"
ONBOOT="yes"
TYPE="Ethernet"
EOF

# generic localhost names
cat > /etc/hosts << EOF
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

EOF
echo .


# Because memory is scarce resource in most cloud/virt environments,
# and because this impedes forensics, we are differing from the Fedora
# default of having /tmp on tmpfs.
echo "Disabling tmpfs for /tmp."
systemctl mask tmp.mount

# make sure firstboot doesn't start
echo "RUN_FIRSTBOOT=NO" > /etc/sysconfig/firstboot

# Uncomment this if you want to use cloud init but suppress the creation
# of an "ec2-user" account. This will, in the absence of further config,
# cause the ssh key from a metadata source to be put in the root account.
#cat <<EOF > /etc/cloud/cloud.cfg.d/50_suppress_ec2-user_use_root.cfg
#users: []
#disable_root: 0
#EOF

echo "Removing random-seed so it's not the same in every image."
rm -f /var/lib/random-seed

echo "Cleaning old yum repodata."
yum history new
yum clean all
truncate -c -s 0 /var/log/yum.log

echo "Fixing SELinux contexts."
/usr/sbin/fixfiles -R -a restore

echo "Zeroing out empty space."
# This forces the filesystem to reclaim space from deleted files
dd bs=1M if=/dev/zero of=/var/tmp/zeros || :
rm -f /var/tmp/zeros
echo "(Don't worry -- that out-of-space error was expected.)"

%end