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