iankelling.org Git - automated-distro-installer/blob - faiserver-setup

   1 #!/bin/bash
   2 # Copyright (C) 2018 Ian Kelling
   3
   4 # This program is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU General Public License
   6 # as published by the Free Software Foundation; either version 2
   7 # of the License, or (at your option) any later version.
   8
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17
  18 x="$(readlink -f "$BASH_SOURCE")"; source "${x%/*}/bash-trace"
  19
  20 [[ $EUID == 0 ]] || exec sudo -i "${BASH_SOURCE}" "$@"
  21
  22 usage() {
  23   cat <<EOF
  24 usage: ${0##*/} [-h|--help]
  25 install fai-server on the current machine
  26
  27 Initial setup of a fai server on debian. works on localhost.
  28 Set's the current ip as the tftp server. I vaguely remember
  29 that using a hostname does not work.
  30 Separate from running this, faiserver needs to be setup in dns
  31 to point to whatever host this is run on.
  32
  33 It expects $BASEFILE_DIR/STRETCH64.tar.gz to exist, and it
  34 must have been generated around the same time as the nfsroot,
  35 at least so it has the same kernel version.
  36
  37 EOF
  38   exit $1
  39 }
  40 case $1 in
  41   -h|--help) usage ;;
  42 esac
  43
  44
  45 e() { echo "$@"; "$@"; }
  46
  47 # the automatic basefile getting will be for stretch
  48 # instead of jessie, so if you install jessie, you need
  49 # to setup the basefile and it\'s corresponding class.
  50 base=stretch
  51 sed="sed -ri --follow-symlinks"
  52
  53 if [[ ! -e $BASEFILE_DIR/STRETCH64.tar.gz ]]; then
  54   printf "%s\n" "$0: error BASEFILE_DIR=$BASEFILE_DIR \$BASEFILE_DIR/STRETCH64.tar.gz does not exist"
  55   exit 1
  56 fi
  57
  58
  59 if ! type -p wget &>/dev/null; then
  60   apt-get install -y wget
  61 fi
  62
  63 armhf() {
  64   [[ $(dpkg --print-architecture) == armhf ]]
  65 }
  66
  67 if armhf; then
  68   if apt-cache policy | grep o=Debian,a=testing,n=stretch &>/dev/null; then
  69     cat >/etc/apt/sources.list.d/testing.list <<'EOF'
  70 deb http://http.us.debian.org/debian testing main contrib non-free
  71 deb-src http://http.us.debian.org/debian testing main contrib non-free
  72
  73 deb http://security.debian.org/ testing/updates main contrib non-free
  74 deb-src http://security.debian.org/ testing/updates main contrib non-free
  75
  76 deb http://http.us.debian.org/debian testing-updates main contrib non-free
  77 deb-src http://http.us.debian.org/debian testing-updates main contrib non-free
  78 EOF
  79
  80     cat >/etc/apt/preferences.d/fai <<'EOF'
  81 Package: fai-server fai-client fai-doc
  82 Pin: release a=testing
  83 Pin-Priority: 500
  84
  85 Package: *
  86 Pin: release a=testing
  87 Pin-Priority: -10
  88 EOF
  89   fi
  90 elif grep -xFq 'VERSION="8 (jessie)"' /etc/os-release; then
  91   gpg -a --recv-keys 2BF8D9FE074BCDE4; gpg -a --export 2BF8D9FE074BCDE4 | apt-key add -
  92   cat >/etc/apt/sources.list.d/fai.list <<'EOF'
  93 deb https://fai-project.org/download jessie koeln
  94 EOF
  95 elif grep -xFq 'VERSION="9 (stretch)"' /etc/os-release || grep -iE 'flidas|xenail' /etc/os-release ; then
  96   # fai on ubuntu only has official support using the universe repo, but newer
  97   # tends to have less bugs.
  98   gpg --keyserver hkp://pool.sks-keyservers.net -a --recv-keys 2BF8D9FE074BCDE4; gpg -a --export 2BF8D9FE074BCDE4 | apt-key add -
  99
 100   cat >/etc/apt/sources.list.d/fai.list <<'EOF'
 101 deb https://fai-project.org/download stretch koeln
 102 EOF
 103 else
 104   rm -f /etc/apt/sources.list.d/fai.list
 105 fi
 106
 107 apt-get update
 108
 109 # Relevant packages from fai-quickstart depends and fai-server recommends.
 110 # I especially do not wait isc-dhcp-server or an inetd. Also excludes
 111 # nfs-kernel-server. On an android chroot, we don\'t have nfs in the
 112 # kernel, or the ability to install it.
 113 # xorriso is for running fai-cd -a, not strictly need for fai-server
 114 # perl-tk is for fai-monitor-gui
 115 pkgs=(fai-doc tftpd-hpa tar reprepro squashfs-tools binutils xorriso)
 116 if modprobe nfsd &>/dev/null; then
 117   pkgs+=(nfs-kernel-server)
 118 else
 119   pkgs+=(apache2)
 120 fi
 121
 122
 123 apt-get install -y ${pkgs[@]}
 124 # confnew since we edit /etc/fai/NFSROOT in an automated way
 125 # fai-client is already a fai-server dependency, but make sure it gets upgraded
 126 apt-get install --no-install-recommends -y -o Dpkg::Options::="--force-confnew" fai-server fai-client
 127
 128 r=http://http.us.debian.org/debian
 129 # like default, but scrap httpredir, and nonfree.
 130 # All my systems should be able to get along without nonfree
 131 # for a base working system afaik.
 132 cat >/etc/fai/apt/sources.list <<EOF
 133 deb $r $base main contrib
 134 deb http://security.debian.org/debian-security $base/updates main contrib
 135 EOF
 136
 137
 138 case $base in
 139   jessie|stretch)
 140     cat >>/etc/fai/apt/sources.list <<EOF
 141 # use fai repo. it's commented in the defaults. it's got bug fixes.
 142 # and may contain newer packages.
 143 deb http://fai-project.org/download $base koeln
 144 EOF
 145     ;;
 146 esac
 147
 148 if [[ $base == jessie ]]; then
 149   cat >>/etc/fai/apt/sources.list <<'EOF'
 150 # fix tar https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=819978
 151 deb http://ftp.debian.org/debian jessie-backports main
 152 EOF
 153   # note, fai doesn\'t look at /etc/fai/apt/preferences.d
 154   cat >/etc/fai/apt/preferences <<'EOF'
 155 Package: tar
 156 Pin: release a=jessie-backports
 157 Pin-Priority: 500
 158 EOF
 159 fi
 160
 161
 162 # tried out a stretch base, doesn't work yet.
 163 #
 164 $sed -f - /etc/fai/nfsroot.conf <<EOF
 165 $ a FAI_ROOTPW='$(</q/root/shadow/standard)'
 166 /^\s*FAI_ROOTPW/d
 167 $ a SSH_IDENTITY=/root/.ssh/home.pub
 168 /^\s*SSH_IDENTITY/d
 169 s,^( *FAI_DEBOOTSTRAP=).*,\1"$base $r",
 170 # add --arch amd64. this is needed on arm system which is
 171 # used to install amd64 clients. On amd64 servers, it's redundant.
 172 # disabled for now, since creating fai nfsroot on my arm machine
 173 # is not working
 174 #/--arch amd64/!s/^(\s*FAI_DEBOOTSTRAP_OPTS=")/\1--arch amd64 /
 175 EOF
 176
 177 $sed 's/#LOGUSER/LOGUSER/' /etc/fai/fai.conf
 178 $sed -i '/^FAI_FLAGS=/d' /etc/fai/fai.conf
 179 echo "FAI_FLAGS=verbose" >>/etc/fai/fai.conf
 180
 181 # from man fai-make-nfsroot,
 182 # figured out after partitioning ignored my crypt partition
 183
 184
 185 if ! grep cryptsetup /etc/fai/NFSROOT &>/dev/null; then
 186   cat >>/etc/fai/NFSROOT <<'EOF'
 187 # inserted by faserver-setup
 188 PACKAGES install
 189 cryptsetup
 190 EOF
 191 fi
 192
 193 if armhf; then
 194   cd /srv/fai
 195   rm -rf nfsroot
 196   tar Jxf $BASEFILE_DIR/STRETCH64.tar.xz
 197   # background: Can't build the nfsroot on my arm system now.  First,
 198   # fai-make-nfsroot won't work out of the box. One idea to make it work
 199   # is by installing qemu-user-static, then copying qemu-x86_64-static
 200   # into the nfsroot, and prepending it to chroot commands in
 201   # fai-make-nfsroot, but that fails in odd ways. ls has permissions
 202   # problems on reading directories, various programs segfault
 203   # immediately, cat can't open a file, etc.
 204
 205   NFSROOT=/srv/fai/nfsroot
 206   TFTPROOT=/srv/tftp/fai
 207
 208   # test if our copy of setup_tftp has changed in fai-make-nfsroot,
 209   # and if not, run it.
 210   setup_tftp(){
 211
 212     # tftp environment
 213     local pxebin
 214
 215     # wheezy path
 216     if [ -f $NFSROOT/usr/lib/PXELINUX/pxelinux.0 ]; then
 217       pxebin=$NFSROOT/usr/lib/PXELINUX/pxelinux.0
 218     else
 219       # jessie/stretch path
 220       pxebin=$NFSROOT/usr/lib/syslinux/pxelinux.0
 221     fi
 222
 223     rm -f $NFSROOT/boot/*.bak
 224     mkdir -p $TFTPROOT/pxelinux.cfg
 225     if ! chmod a+r $NFSROOT/boot/initrd.img-*; then
 226       echo "$0: error: No initrd was created. Check the package name of the linux-image package in /etc/fai/NFSROOT."
 227       exit 1
 228     fi
 229     cp -p $v $NFSROOT/boot/vmlinu?-* $NFSROOT/boot/initrd.img-* $TFTPROOT
 230     cp -u $pxebin $TFTPROOT
 231     if [ -f $NFSROOT/usr/lib/syslinux/modules/bios/ldlinux.c32 ]; then
 232       cp -u $NFSROOT/usr/lib/syslinux/modules/bios/ldlinux.c32 $TFTPROOT
 233     fi
 234     if [ X$verbose = X1 ]; then
 235       echo "TFTP environment prepared. Enable DHCP and start the TFTP daemon on root $TFTPROOT."
 236     fi
 237   }
 238   diff -u <(type setup_tftp) <(cat <(sed -n '/^setup_tftp(){/,/^}/p' $(which fai-make-nfsroot) ) - <<'EOF' |bash
 239 type setup_tftp
 240 EOF
 241                               )
 242   setup_tftp
 243
 244   # -g causes skipping set_root_pw() in fai-make-nfsroot, -ag
 245   # is the only way to make it run without chrooting. the options
 246   # seem contradictory, but it works.
 247   fai-setup -evag
 248
 249 else # not armhf
 250   # note, this copies the -B arg to
 251   # /srv/fai/nfsroot/var/tmp/base.tar.xz
 252   e fai-setup -evf -B $BASEFILE_DIR/STRETCH64.tar.gz
 253   # fai-setup expert mode avoids writing to /var/log/fai/variables
 254   # at least config_src is needed for autodiscover
 255   $sed '/^FAI_CONFIGDIR|^FAI_CONFIG_SRC|^LOGUSER/d' /var/log/fai/variables
 256   tee -a /var/log/fai/variables <<'EOF'
 257 LOGUSER=fai
 258 FAI_CONFIGDIR=/srv/fai/config
 259 FAI_CONFIG_SRC=nfs://faiserver/srv/fai/config
 260 EOF
 261   # make the faiserver also the apt proxy server
 262   apt-get -y install apt-cacher-ng
 263 fi
 264
 265 rm -f /srv/fai/nfsroot/root/.ssh/known_hosts
 266 key=$(ssh-keyscan localhost |& grep -o "ecdsa-sha2-nistp256.*")
 267 for ip in faiserver $(ip addr show up| grep -w '^ *inet' | awk '{print $2}'| cut -d / -f 1 | grep -vF 127.0.0.1); do
 268   echo "$ip $key" >>/srv/fai/nfsroot/root/.ssh/known_hosts
 269 done
 270
 271
 272 # serial console
 273 # mainly from
 274 # https://wiki.archlinux.org/index.php/working_with_the_serial_console
 275 # at runtime, running this from ssh worked:
 276 # https://unix.stackexchange.com/questions/242778/what-is-the-easiest-way-to-configure-serial-port-on-linux
 277 # stty -F /dev/ttyS0 115200 cs8 -cstopb -parenb
 278 # /sbin/agetty 115200 ttyS0 linux
 279 # dated info, but validation that this might work on debian:
 280 # https://help.ubuntu.com/community/SerialConsoleHowto
 281 # note in the nfsroot, systemd is not running.
 282 echo "c0:2345:respawn:/sbin/agetty 115200 ttyS0 linux" >>/srv/fai/nfsroot/etc/inittab
 283
 284 # initially did the basic fai-chboot -Iv $std_arg default
 285 # but found in console that it wanted to mount nfsroot
 286 # to be the same as my dhcp server.
 287 # Figured out to change the root= parameter from googling,
 288 # and seeing fai-chboot -L
 289 # using hostname failed.
 290 # for -f, combined the 2 defaults so it will reboot and print to screen.
 291
 292 # Add debug to -f flag for more verbose output.
 293
 294
 295 # background on choosing apt-cacher-ng:
 296 # googling around a bit finds 2 main solutions:
 297 # http://askubuntu.com/questions/3503/best-way-to-cache-apt-downloads-on-a-lan
 298 # apt-cacher-ng doesn\'t have zeroconf.
 299 # It touts having minimal dependencies, but I don\'t care.
 300 # The downside to squid-deb-proxy is that it\'s config is for specific repos,
 301 # you have to add all the repos you use.
 302 # That is the main reason I use apt-cacher-ng.
 303 # It has a web portal, at http://faiserver:3142/acng-report.html
 304
 305
 306 # random fai note: as far as I can tell, profiles are just for putting
 307 # in a selectable boot menu, which I don\'t want.
 308
 309 # the logsave prompted because the hostname faiserver was uknown.
 310 # Here it was faiserver.lan when running from a faiserver vm.
 311 # When running from a normal host with faiserver alias, it was the normal hosts name.
 312 $sed 's/(^[^,]+,)\S+/\1faiserver/' /srv/fai/nfsroot/root/.ssh/known_hosts
 313 # ditch the logo banner up top which screws with less.
 314 touch /srv/fai/nfsroot/.nocolorlogo