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}" "$@"
  27
  28 e() { echo "$@"; "$@"; }
  29 # for ubuntu:
  30 #add-apt-repository -y ppa:fai/ppa
  31
  32 # for debian:
  33 wget -O - http://fai-project.org/download/074BCDE4.asc | apt-key add -
  34 cat >/etc/apt/sources.list.d/fai.list <<'EOF'
  35 deb http://fai-project.org/download jessie koeln
  36 EOF
  37
  38 apt-get update
  39 # all the dependencies except the dhcp server
  40 deps="$(apt-cache show fai-quickstart | grep ^Depends: |head -n 1|\
  41               sed -r 's/^Depends:|,|\|[^,]+|isc-dhcp-server//g')"
  42 to_install=()
  43 for pkg in $deps; do
  44     dpkg -s $pkg &>/dev/null && continue ||:
  45     to_install+=($pkg)
  46     echo $pkg >>/etc/fai/fai-manually-installed-packages
  47 done
  48 if [[ $to_install ]]; then
  49     apt-get -y install ${to_install[@]}
  50 fi
  51
  52 sed="sed -ri --follow-symlinks"
  53 $sed 's/^#deb/deb/' /etc/fai/apt/sources.list
  54 $sed 's/#LOGUSER/LOGUSER/' /etc/fai/fai.conf
  55 # from man fai-make-nfsroot,
  56 # figured out after partitioning ignored my crypt partition
  57 if ! grep cryptsetup /etc/fai/NFSROOT &>/dev/null; then
  58     $sed '/^PACKAGES install$/a cryptsetup' /etc/fai/NFSROOT
  59 fi
  60 fai-setup -vf
  61 { head -n 1 /srv/fai/nfsroot/root/.ssh/known_hosts | awk '{print $1}' \
  62         | tr '\n' ' '; ssh-keyscan localhost | grep -o "ecdsa-sha2-nistp256.*"; \
  63     } >>/srv/fai/nfsroot/root/.ssh/known_hosts
  64
  65 # this does not alter the config on a new install
  66 $sed 's#^([[:space:]]*TFTP_DIRECTORY[[:space:]]*=).*#\1"/srv/tftp"#' \
  67     /etc/default/tftpd-hpa
  68
  69 service tftpd-hpa restart
  70
  71 # initially did the basic fai-chboot -Iv $std_arg default
  72 # but found in console that it wanted to mount nfsroot
  73 # to be the same as my dhcp server.
  74 # Figured out to change the root= parameter from googling,
  75 # and seeing fai-chboot -L
  76 # using hostname failed.
  77 # for -f, combined the 2 defaults so it will reboot and print to screen.
  78
  79 # Add debug to -f flag for more verbose output.
  80
  81 std_arg="-u nfs://faiserver/srv/fai/config"
  82 e fai-chboot -Iv $std_arg default # reset so we are idempotent
  83 kernel=$(fai-chboot -L '^default$' | awk '{print $3}')
  84 type -t host &>/dev/null || apt-get -y install dnsutils
  85 # resolve host using gateway address
  86 my_ip=$(host faiserver $(route -n | sed -rn 's/^(0\.){3}0\s+(\S+).*/\2/p') | \
  87                sed -rn 's/^\S+ has address //p')
  88 k_args=$(fai-chboot -L '^default$' | \
  89                 sed -r "s/^(\S+\s+){3}(.*root=)(.*)/\2$my_ip:\3/")
  90 e fai-chboot -k "$k_args" -v -f verbose,sshd,createvt,reboot $std_arg $kernel default
  91
  92 # make the faiserver also the apt proxy server
  93 apt-get -y install apt-cacher-ng
  94
  95 # background on choosing apt-cacher-ng:
  96 # googling around a bit finds 2 main solutions:
  97 # http://askubuntu.com/questions/3503/best-way-to-cache-apt-downloads-on-a-lan
  98 # apt-cacher-ng doesn't have zeroconf.
  99 # It touts having minimal dependencies, but I don't care.
 100 # The downside to squid-deb-proxy is that it's config is for specific repos,
 101 # you have to add all the repos you use.
 102 # That is the main reason I use apt-cacher-ng.
 103 # It has a web portal, at http://faiserver:3142/acng-report.html
 104
 105
 106 # random fai note: as far as I can tell, profiles are just for putting
 107 # in a selectable boot menu, which I don't want.
 108
 109 # the logsave prompted because the hostname faiserver was uknown.
 110 # Here it was faiserver.lan when running from a faiserver vm.
 111 # When running from a normal host with faiserver alias, it was the normal hosts name.
 112 $sed 's/(^[^,]+,)\S+/\1faiserver/' /srv/fai/nfsroot/root/.ssh/known_hosts
 113 # ditch the logo banner up top which screws with less.
 114 touch /srv/fai/nfsroot/.nocolorlogo