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

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