# This is a Fedora 21 spin designed based on the Fedora Cloud Base Image # but tailored specifically for Big Data processing out-of-the-box. # Primarily, it builds on that image but adds extra packages, but over # time may have additional focus. # # 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. text lang en_US.UTF-8 keyboard us timezone --utc Etc/UTC auth --useshadow --enablemd5 selinux --enforcing rootpw --lock --iscrypted locked user --name=none firewall --disabled bootloader --timeout=1 --append="no_timer_check console=tty1 console=ttyS0,115200n8" --extlinux network --bootproto=dhcp --device=eth0 --activate --onboot=on services --enabled=network,sshd,rsyslog,cloud-init,cloud-init-local,cloud-config,cloud-final zerombr clearpart --all part / --size 3000 --fstype ext4 %include fedora-repo.ks reboot # Package list. %packages fedora-release-cloud kernel-core @core @cloud-server # Needed initially, but removed below. firewalld # rescue mode generally isn't useful in the cloud context -dracut-config-rescue # Some things from @core we can do without in a minimal install -biosdevname -plymouth -NetworkManager -iprutils -kbd -uboot-tools -kernel -grub2 %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 (hd0,0)" >> /boot/grub/grub.conf echo -e "\tkernel /boot/vmlinuz-$kv ro root=$rootuuid no_timer_check 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 # remove the user anaconda forces us to make userdel -r none # 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" # 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-setup-link.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" PERSISTENT_DHCLIENT="yes" 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 < /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 "Import RPM GPG key" releasever=$(rpm -q --qf '%{version}\n' fedora-release) basearch=$(uname -i) rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch echo "Packages within this cloud image:" echo "-----------------------------------------------------------------------" rpm -qa echo "-----------------------------------------------------------------------" # Note that running rpm recreates the rpm db files which aren't needed/wanted rm -f /var/lib/rpm/__db* # This is a temporary workaround for # # where sfdisk seems to be messing up the mbr. # Long-term fix is to address this in anaconda directly and remove this. # dd if=/usr/share/syslinux/mbr.bin of=/dev/vda echo "Fixing SELinux contexts." touch /var/log/cron touch /var/log/boot.log mkdir -p /var/cache/yum chattr -i /boot/extlinux/ldlinux.sys /usr/sbin/fixfiles -R -a restore chattr +i /boot/extlinux/ldlinux.sys echo "Zeroing out empty space with fstrim." /usr/sbin/fstrim / %end