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

   1 #!/bin/bash
   2 # Copyright (C) 2016 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 # Initial setup of a fai server on debian. works on localhost.
  19 # Set's the current ip as the tftp server. I vaguely remember
  20 # that using a hostname does not work
  21 # Requires changing dns to point faiserver and running fai-redep
  22
  23 set -eE -o pipefail
  24 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
  25
  26 [[ $EUID == 0 ]] || exec sudo "${BASH_SOURCE}" "$@"
  27
  28 e() { echo "$@"; "$@"; }
  29
  30 base=${1:-jessie}
  31 sed="sed -ri --follow-symlinks"
  32
  33
  34 if [[ $base == jessie ]]; then
  35     wget -O - http://fai-project.org/download/074BCDE4.asc | apt-key add -
  36     cat >/etc/apt/sources.list.d/fai.list <<'EOF'
  37 deb http://fai-project.org/download jessie koeln
  38 EOF
  39 else
  40     rm -f /etc/apt/sources.list.d/fai.list
  41 fi
  42
  43 # for ubuntu:
  44 #add-apt-repository -y ppa:fai/ppa
  45
  46 # for debian:
  47
  48 apt-get update
  49 # all the dependencies except the dhcp server
  50 deps="$(apt-cache show fai-quickstart | grep ^Depends: |head -n 1|\
  51               sed -r 's/^Depends:|,|\|[^,]+|isc-dhcp-server//g')"
  52 to_install=()
  53 for pkg in $deps; do
  54     dpkg -s $pkg &>/dev/null && continue ||:
  55     to_install+=($pkg)
  56     # just so we have a record.
  57     echo `date` $pkg >>/var/log/fai-manually-installed-packages.log
  58 done
  59 if [[ $to_install ]]; then
  60     apt-get -y install ${to_install[@]}
  61 fi
  62
  63 r=http://http.us.debian.org/debian
  64 # like default, but scrap httpredir and add suggested newer pkgs in fai-project.org
  65 dd of=/etc/fai/apt/sources.list <<EOF
  66 deb $r $base main contrib non-free
  67 deb http://security.debian.org/debian-security $base/updates main contrib non-free
  68
  69 EOF
  70
  71 if [[ $base == jessie ]]; then
  72     tee -a /etc/fai/apt/sources.list <<'EOF'
  73 deb http://fai-project.org/download jessie koeln
  74 EOF
  75 fi
  76
  77 # tried out a stretch base, doesn't work yet.
  78 $sed -f - /etc/fai/nfsroot.conf <<EOF
  79 s,^( *FAI_DEBOOTSTRAP=).*,\1"$base $r",
  80 EOF
  81
  82 $sed 's/#LOGUSER/LOGUSER/' /etc/fai/fai.conf
  83 # from man fai-make-nfsroot,
  84 # figured out after partitioning ignored my crypt partition
  85
  86
  87 if ! grep cryptsetup /etc/fai/NFSROOT &>/dev/null; then
  88     $sed '/^PACKAGES install$/a cryptsetup' /etc/fai/NFSROOT
  89 fi
  90 e fai-setup -vf
  91 { head -n 1 /srv/fai/nfsroot/root/.ssh/known_hosts | awk '{print $1}' \
  92       | tr '\n' ' '; ssh-keyscan localhost | grep -o "ecdsa-sha2-nistp256.*"; \
  93     } >>/srv/fai/nfsroot/root/.ssh/known_hosts
  94
  95 # this does not alter the config on a new install
  96 $sed 's#^([[:space:]]*TFTP_DIRECTORY[[:space:]]*=).*#\1"/srv/tftp"#' \
  97      /etc/default/tftpd-hpa
  98
  99 service tftpd-hpa restart
 100
 101 # initially did the basic fai-chboot -Iv $std_arg default
 102 # but found in console that it wanted to mount nfsroot
 103 # to be the same as my dhcp server.
 104 # Figured out to change the root= parameter from googling,
 105 # and seeing fai-chboot -L
 106 # using hostname failed.
 107 # for -f, combined the 2 defaults so it will reboot and print to screen.
 108
 109 # Add debug to -f flag for more verbose output.
 110
 111 std_arg="-u nfs://faiserver/srv/fai/config"
 112 e fai-chboot -Iv $std_arg default # reset so we are idempotent
 113 kernel=$(fai-chboot -L '^default$' | awk '{print $3}')
 114 type -t host &>/dev/null || apt-get -y install dnsutils
 115 # resolve host using gateway address
 116 my_ip=$(host faiserver $(route -n | sed -rn 's/^(0\.){3}0\s+(\S+).*/\2/p') | \
 117             sed -rn 's/^\S+ has address //p')
 118 k_args=$(fai-chboot -L '^default$' | \
 119              sed -r "s/^(\S+\s+){3}(.*root=)(.*)/\2$my_ip:\3/")
 120 e fai-chboot -k "$k_args" -v -f verbose,sshd,createvt,reboot $std_arg $kernel default
 121
 122 # make the faiserver also the apt proxy server
 123 apt-get -y install apt-cacher-ng
 124
 125 # background on choosing apt-cacher-ng:
 126 # googling around a bit finds 2 main solutions:
 127 # http://askubuntu.com/questions/3503/best-way-to-cache-apt-downloads-on-a-lan
 128 # apt-cacher-ng doesn't have zeroconf.
 129 # It touts having minimal dependencies, but I don't care.
 130 # The downside to squid-deb-proxy is that it's config is for specific repos,
 131 # you have to add all the repos you use.
 132 # That is the main reason I use apt-cacher-ng.
 133 # It has a web portal, at http://faiserver:3142/acng-report.html
 134
 135
 136 # random fai note: as far as I can tell, profiles are just for putting
 137 # in a selectable boot menu, which I don't want.
 138
 139 # the logsave prompted because the hostname faiserver was uknown.
 140 # Here it was faiserver.lan when running from a faiserver vm.
 141 # When running from a normal host with faiserver alias, it was the normal hosts name.
 142 $sed 's/(^[^,]+,)\S+/\1faiserver/' /srv/fai/nfsroot/root/.ssh/known_hosts
 143 # ditch the logo banner up top which screws with less.
 144 touch /srv/fai/nfsroot/.nocolorlogo