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

   1 #!/bin/bash
   2
   3 # Initial setup of a fai server on debian. works on localhost.
   4 # Set's the current ip as the tftp server. I vaguely remember
   5 # that using a hostname does not work
   6 # Requires changing dns to point faiserver and running fai-redep
   7
   8 set -eE -o pipefail
   9 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
  10
  11 [[ $EUID == 0 ]] || exec sudo "${BASH_SOURCE}" "$@"
  12
  13 e() { echo "$@"; "$@"; }
  14 # for ubuntu:
  15 #add-apt-repository -y ppa:fai/ppa
  16
  17 # for debian:
  18 wget -O - http://fai-project.org/download/074BCDE4.asc | apt-key add -
  19 cat >/etc/apt/sources.list.d/fai.list <<'EOF'
  20 deb http://fai-project.org/download jessie koeln
  21 EOF
  22
  23 apt-get update
  24 # all the dependencies except the dhcp server
  25 deps="$(apt-cache show fai-quickstart | grep ^Depends: |head -n 1|\
  26               sed -r 's/^Depends:|,|\|[^,]+|isc-dhcp-server//g')"
  27 to_install=()
  28 for pkg in $deps; do
  29     dpkg -s $pkg &>/dev/null && continue ||:
  30     to_install+=($pkg)
  31     echo $pkg >>/etc/fai/fai-manually-installed-packages
  32 done
  33 if [[ $to_install ]]; then
  34     apt-get -y install ${to_install[@]}
  35 fi
  36
  37 sed="sed -ri --follow-symlinks"
  38 $sed 's/^#deb/deb/' /etc/fai/apt/sources.list
  39 $sed 's/#LOGUSER/LOGUSER/' /etc/fai/fai.conf
  40 # from man fai-make-nfsroot,
  41 # figured out after partitioning ignored my crypt partition
  42 if ! grep cryptsetup /etc/fai/NFSROOT &>/dev/null; then
  43     $sed '/^PACKAGES install$/a cryptsetup' /etc/fai/NFSROOT
  44 fi
  45 fai-setup -vf
  46 { head -n 1 /srv/fai/nfsroot/root/.ssh/known_hosts | awk '{print $1}' \
  47         | tr '\n' ' '; ssh-keyscan localhost | grep -o "ecdsa-sha2-nistp256.*"; \
  48     } >>/srv/fai/nfsroot/root/.ssh/known_hosts
  49
  50 # this does not alter the config on a new install
  51 $sed 's#^([[:space:]]*TFTP_DIRECTORY[[:space:]]*=).*#\1"/srv/tftp"#' \
  52     /etc/default/tftpd-hpa
  53
  54 service tftpd-hpa restart
  55
  56 # initially did the basic fai-chboot -Iv $std_arg default
  57 # but found in console that it wanted to mount nfsroot
  58 # to be the same as my dhcp server.
  59 # Figured out to change the root= parameter from googling,
  60 # and seeing fai-chboot -L
  61 # using hostname failed.
  62 # for -f, combined the 2 defaults so it will reboot and print to screen.
  63
  64 # Add debug to -f flag for more verbose output.
  65
  66 std_arg="-u nfs://faiserver/srv/fai/config"
  67 e fai-chboot -Iv $std_arg default # reset so we are idempotent
  68 kernel=$(fai-chboot -L '^default$' | awk '{print $3}')
  69 type -t host &>/dev/null || apt-get -y install dnsutils
  70 # resolve host using gateway address
  71 my_ip=$(host faiserver $(route -n | sed -rn 's/^(0\.){3}0\s+(\S+).*/\2/p') | \
  72                sed -rn 's/^\S+ has address //p')
  73 k_args=$(fai-chboot -L '^default$' | \
  74                 sed -r "s/^(\S+\s+){3}(.*root=)(.*)/\2$my_ip:\3/")
  75 e fai-chboot -k "$k_args" -v -f verbose,sshd,createvt,reboot $std_arg $kernel default
  76
  77 # make the faiserver also the apt proxy server
  78 apt-get -y install apt-cacher-ng
  79
  80 # background on choosing apt-cacher-ng:
  81 # googling around a bit finds 2 main solutions:
  82 # http://askubuntu.com/questions/3503/best-way-to-cache-apt-downloads-on-a-lan
  83 # apt-cacher-ng doesn't have zeroconf.
  84 # It touts having minimal dependencies, but I don't care.
  85 # The downside to squid-deb-proxy is that it's config is for specific repos,
  86 # you have to add all the repos you use.
  87 # That is the main reason I use apt-cacher-ng.
  88 # It has a web portal, at http://faiserver:3142/acng-report.html
  89
  90
  91 # random fai note: as far as I can tell, profiles are just for putting
  92 # in a selectable boot menu, which I don't want.
  93
  94 # the logsave prompted because the hostname faiserver was uknown.
  95 # Here it was faiserver.lan when running from a faiserver vm.
  96 # When running from a normal host with faiserver alias, it was the normal hosts name.
  97 $sed 's/(^[^,]+,)\S+/\1faiserver/' /srv/fai/nfsroot/root/.ssh/known_hosts
  98 # ditch the logo banner up top which screws with less.
  99 touch /srv/fai/nfsroot/.nocolorlogo