iankelling.org Git - automated-distro-installer/blob - myfai-chboot-local

   1 #!/bin/bash
   2 # This file is part of Ian Kelling's automated-distro-installer
   3 # Copyright (C) 2024 Ian Kelling
   4
   5 # This program is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU General Public License
   7 # as published by the Free Software Foundation; either version 2
   8 # of the License, or (at your option) any later version.
   9
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18
  19
  20 [[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
  21
  22 set -x
  23
  24 set -eE -o pipefail
  25 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
  26
  27 pre="${0##*/}:"
  28 m() { printf "$pre %s\n"  "$*"; "$@"; }
  29 e() { printf "$pre %s\n"  "$*"; }
  30 err() { echo "[$(date +'%Y-%m-%d %H:%M:%S%z')]: $pre: $*" >&2; }
  31
  32 usage() {
  33   cat <<EOF
  34 Usage: call from myfai-chboot, see its help
  35
  36 # note, this script gets piped to bash, so cant cd to current dir
  37
  38 -h|--help  Print help and exit.
  39
  40 Note: Uses util-linux getopt option parsing: spaces between args and
  41 options, short options can be combined, options before args.
  42 EOF
  43   exit $1
  44 }
  45
  46
  47 kgped16=false
  48 bond=false
  49 fai_action=install
  50 fai_reboot_arg=,reboot
  51
  52 # ensure we can handle args with spaces or empty.
  53 ret=0; getopt -T || ret=$?
  54 [[ $ret == 4 ]] || { echo "Install util-linux for enhanced getopt" >&2; exit 1; }
  55
  56 temp=$(getopt -l help,no-r hSi "$@") || usage 1
  57 eval set -- "$temp"
  58 while true; do
  59   case $1 in
  60     -S)
  61       fai_action=sysinfo
  62       fai_reboot_arg=
  63       ;;
  64     -i) #inventory
  65       fai_action=inventory
  66       fai_reboot_arg=
  67       ;;
  68     -k)
  69       kgped16=true
  70       ;;
  71     -b)
  72       bond=true
  73       ;;
  74     --no-r)
  75       fai_reboot_arg=
  76       ;;
  77     -h|--help) usage ;;
  78     --) shift; break ;;
  79     *) echo "$0: unexpected args: $*" >&2 ; usage 1 ;;
  80   esac
  81   shift
  82 done
  83 read -r host <<<"$@"
  84 readonly host
  85
  86
  87 rm -f /srv/tftp/fai/pxelinux.cfg/*
  88 if [[ ! $1 ]]; then
  89   echo "$0: clearing pxe config and exiting"
  90   exit 0
  91 fi
  92
  93 # somewhat duplicated in brc hostip()
  94 case $host in
  95   default) : ;;
  96   [0-9:])
  97     hostip=$host
  98     ;;
  99   *)
 100     hostip=$(getent ahostsv4 "$host" | awk '{ print $1 }' | head -n1)
 101     ;;
 102 esac
 103
 104 if [[ $hostip ]]; then
 105
 106   # assuming ipv4, or else we might need to deal with multiple addresses
 107   # in an ipv4 + ipv6 network.
 108   my_ip=$(ip -4 route get $hostip | sed -nr 's,^.*src\s+(\S+).*,\1,p')
 109   if [[ ! $my_ip || $my_ip =~ [[:space:]] ]]; then
 110     echo "$0: error: failed to get \$my_ip, got: $my_ip"
 111     exit 1
 112   fi
 113 else
 114   my_ip=$(ip r show default | sed -r 's/.*via ([^ ]*).*/\1/' | head -n1)
 115 fi
 116
 117 if [[ $host == default ]]; then
 118   ip='*'
 119 elif [[ $host == [0-9]*.[0-9]*.[0-9]*.[0-9]* ]]; then
 120   ip=$host/32
 121 else
 122   type -t host &>/dev/null || apt-get -y install dnsutils
 123   ip=$(host $host | sed -rn 's/^\S+ has address //p;T;q' ||:)
 124   if [[ ! $ip || $ip =~ [[:space:]] ]]; then
 125     echo "$0: error: failed to get \$ip, got: $ip"
 126     exit 1
 127   fi
 128   ip=$ip/32
 129   echo "$0: found ip of $host: $ip"
 130 fi
 131
 132 if modprobe nfsd &>/dev/null; then
 133   std_arg="-u nfs://faiserver/srv/fai/config"
 134   # nfsv4 wont do rw with overlayfs yet
 135   # https://lists.uni-koeln.de/pipermail/linux-fai/2017-March/011641.html
 136   root_arg="$my_ip:/srv/fai/nfsroot:vers=3"
 137   # fai-setup without -e sets the ip to the local_ip/local_network, eg 192.168.1.3/24
 138   # I restrict it to one ip as simple but imperfect access control.
 139
 140   # we may chattr +i /etc/exports if we dun want it modified
 141   # for example, if we made these exports more widely available
 142   # while doing multiple installs or a recovery.
 143   if [[ -w /etc/exports ]]; then
 144     sed -ri --follow-symlinks '\%^/srv/fai/%d' /etc/exports
 145     cat >>/etc/exports <<EOF
 146 /srv/fai/config $ip(async,ro,no_subtree_check,no_root_squash)
 147 /srv/fai/nfsroot $ip(async,ro,no_subtree_check,no_root_squash)
 148 EOF
 149     exportfs -ra
 150   fi
 151   systemctl start nfs-server # assumes recent os
 152 else
 153   std_arg="-u http://faiserver:8080/config.tar.gz"
 154   root_arg="live:http://faiserver:8080/squash.img"
 155   /a/exe/web-conf -i -p 8080 - apache2 faiserver <<EOF
 156 <Location />
 157     Deny from all
 158     Allow from $ip
 159 </Location>
 160 EOF
 161 fi
 162
 163
 164
 165 # man page doesn't explain this, but this deletes & thus disables
 166 # all chboot systems.
 167 m fai-chboot -iv $std_arg default # set it to default to get a val out of it next
 168 kernel=$(fai-chboot -L '^default$' | awk '{print $3}')
 169 default_k_args=$(fai-chboot -L '^default$' | \
 170                    sed -r "s/^(\S+\s+){3}(.*)/\2/")
 171 # example of default_k_args
 172 # initrd=initrd.img-3.16.0-4-amd64 ip=dhcp root=192.168.1.3:/srv/fai/nfsroot FAI_CONFIG_SRC=nfs://faiserver/srv/fai/config FAI_ACTION=install
 173
 174 # https://wiki.archlinux.org/index.php/Solid_state_drive#Resolving_NCQ_errors
 175 # currently on needed on d16 samsung 870 qvo, but better to have this
 176 # and not wait for more conditions where its needed.
 177 #k_args=(FAI_ACTION=$fai_action libata.force=noncq ifname:bootnet0:08:60:6e:10:f0:fe ifname:bootnet1:08:60:6e:10:f0:98 bond=bond0:bootnet0,bootnet1:mode=balance-rr)
 178 #k_args=(FAI_ACTION=$fai_action libata.force=noncq ifname:bootnet0:08:60:6e:10:f0:fe biosdevname=0 bootdev=bootnet0)
 179 k_args=(FAI_ACTION=$fai_action libata.force=noncq)
 180 if $kgped16; then
 181   k_args+=(console=tty0 console=ttyS0,115200)
 182 fi
 183
 184 for arg in $default_k_args; do
 185   case $arg in
 186     # default root arg is /srv/fai/nfsroot
 187     root=*) k_args+=(root=$root_arg) ;;
 188     # note: this works to only dhcp on one interface: ip=eth0:dhcp
 189     ip=*)
 190       if $bond; then
 191         k_args+=("bond=bond0:eth0,eth1:mode=balance-rr ip=bond0:dhcp")
 192       else
 193         k_args+=($arg)
 194       fi
 195       ;;
 196     *) k_args+=($arg) ;;
 197   esac
 198 done
 199 rm -f /srv/tftp/fai/pxelinux.cfg/*
 200 m fai-chboot -k "${k_args[*]}" -v -f verbose,sshd,createvt$fai_reboot_arg $std_arg $kernel "$host"
 201
 202 # this is needed for autodiscover iso. i'm not sure, it might override
 203 # the fai-chboot method of setting this, i'm not sure.
 204 echo FAI_ACTION=$fai_action >> /srv/fai/config/class/LAST.var