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 # note, this script gets piped to bash, so cant cd to current dir
  20
  21 [[ $EUID == 0 ]] || exec sudo "${BASH_SOURCE}" "$@"
  22
  23 set -eE -o pipefail
  24 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
  25
  26 kgped16=false
  27 bond=false
  28 fai_action=install
  29 fai_reboot_arg=,reboot
  30 while [[ $1 == -* ]]; do
  31   case $1 in
  32     -h|--help)
  33       echo "see help from myfai-chboot"
  34       exit 0
  35       ;;
  36     -S)
  37       fai_action=sysinfo
  38       fai_reboot_arg=
  39       shift
  40       ;;
  41     -i) #inventory
  42       fai_action=inventory
  43       fai_reboot_arg=
  44       shift
  45       ;;
  46     -k)
  47       kgped16=true
  48       shift
  49       ;;
  50     -b)
  51       bond=true
  52       shift
  53       ;;
  54     --no-r)
  55       fai_reboot_arg=
  56       shift
  57       ;;
  58   esac
  59 done
  60
  61 pre="${0##*/}:"
  62 m() { printf "$pre %s\n"  "$*"; "$@"; }
  63 e() { printf "$pre %s\n"  "$*"; }
  64 err() { echo "[$(date +'%Y-%m-%d %H:%M:%S%z')]: $pre: $*" >&2; }
  65
  66 host=$1
  67
  68
  69 rm -f /srv/tftp/fai/pxelinux.cfg/*
  70 if [[ ! $1 ]]; then
  71   echo "$0: clearing pxe config and exiting"
  72   exit 0
  73 fi
  74
  75 # somewhat duplicated in brc hostip()
  76 case $host in
  77   default) : ;;
  78   [0-9:])
  79     hostip=$host
  80     ;;
  81   *)
  82     hostip=$(getent ahostsv4 "$host" | awk '{ print $1 }' | head -n1)
  83     ;;
  84 esac
  85
  86 if [[ $hostip ]]; then
  87
  88   # assuming ipv4, or else we might need to deal with multiple addresses
  89   # in an ipv4 + ipv6 network.
  90   my_ip=$(ip -4 route get $hostip | sed -nr 's,^.*src\s+(\S+).*,\1,p')
  91   if [[ ! $my_ip || $my_ip =~ [[:space:]] ]]; then
  92     echo "$0: error: failed to get \$my_ip, got: $my_ip"
  93     exit 1
  94   fi
  95 else
  96   my_ip=$(ip r show default | sed -r 's/.*via ([^ ]*).*/\1/' | head -n1)
  97 fi
  98
  99 if [[ $host == default ]]; then
 100   ip='*'
 101 elif [[ $host == [0-9]*.[0-9]*.[0-9]*.[0-9]* ]]; then
 102   ip=$host/32
 103 else
 104   type -t host &>/dev/null || apt-get -y install dnsutils
 105   ip=$(host $host | sed -rn 's/^\S+ has address //p;T;q' ||:)
 106   if [[ ! $ip || $ip =~ [[:space:]] ]]; then
 107     echo "$0: error: failed to get \$ip, got: $ip"
 108     exit 1
 109   fi
 110   ip=$ip/32
 111   echo "$0: found ip of $host: $ip"
 112 fi
 113
 114 if modprobe nfsd &>/dev/null; then
 115   std_arg="-u nfs://faiserver/srv/fai/config"
 116   # nfsv4 wont do rw with overlayfs yet
 117   # https://lists.uni-koeln.de/pipermail/linux-fai/2017-March/011641.html
 118   root_arg="$my_ip:/srv/fai/nfsroot:vers=3"
 119   # fai-setup without -e sets the ip to the local_ip/local_network, eg 192.168.1.3/24
 120   # I restrict it to one ip as simple but imperfect access control.
 121
 122   # we may chattr +i /etc/exports if we dun want it modified
 123   # for example, if we made these exports more widely available
 124   # while doing multiple installs or a recovery.
 125   if [[ -w /etc/exports ]]; then
 126     sed -ri --follow-symlinks '\%^/srv/fai/%d' /etc/exports
 127     cat >>/etc/exports <<EOF
 128 /srv/fai/config $ip(async,ro,no_subtree_check,no_root_squash)
 129 /srv/fai/nfsroot $ip(async,ro,no_subtree_check,no_root_squash)
 130 EOF
 131     exportfs -ra
 132   fi
 133   systemctl start nfs-server # assumes recent os
 134 else
 135   std_arg="-u http://faiserver:8080/config.tar.gz"
 136   root_arg="live:http://faiserver:8080/squash.img"
 137   /a/exe/web-conf -i -p 8080 - apache2 faiserver <<EOF
 138 <Location />
 139     Deny from all
 140     Allow from $ip
 141 </Location>
 142 EOF
 143 fi
 144
 145
 146
 147 # man page doesn't explain this, but this deletes & thus disables
 148 # all chboot systems.
 149 m fai-chboot -iv $std_arg default # set it to default to get a val out of it next
 150 kernel=$(fai-chboot -L '^default$' | awk '{print $3}')
 151 default_k_args=$(fai-chboot -L '^default$' | \
 152                    sed -r "s/^(\S+\s+){3}(.*)/\2/")
 153 # example of default_k_args
 154 # initrd=initrd.img-3.16.0-4-amd64 ip=dhcp root=192.168.1.3:/srv/fai/nfsroot FAI_CONFIG_SRC=nfs://faiserver/srv/fai/config FAI_ACTION=install
 155
 156 # https://wiki.archlinux.org/index.php/Solid_state_drive#Resolving_NCQ_errors
 157 # currently on needed on d16 samsung 870 qvo, but better to have this
 158 # and not wait for more conditions where its needed.
 159 #k_args=(FAI_ACTION=$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)
 160 #k_args=(FAI_ACTION=$fai_action libata.force=noncq ifname:bootnet0:08:60:6e:10:f0:fe biosdevname=0 bootdev=bootnet0)
 161 k_args=(FAI_ACTION=$fai_action libata.force=noncq)
 162 if $kgped16; then
 163   k_args+=(console=tty0 console=ttyS0,115200)
 164 fi
 165
 166 for arg in $default_k_args; do
 167   case $arg in
 168     # default root arg is /srv/fai/nfsroot
 169     root=*) k_args+=(root=$root_arg) ;;
 170     # note: this works to only dhcp on one interface: ip=eth0:dhcp
 171     ip=*)
 172       if $bond; then
 173         k_args+=("bond=bond0:eth0,eth1:mode=balance-rr ip=bond0:dhcp")
 174       else
 175         k_args+=($arg)
 176       fi
 177       ;;
 178     *) k_args+=($arg) ;;
 179   esac
 180 done
 181 rm -f /srv/tftp/fai/pxelinux.cfg/*
 182 m fai-chboot -k "${k_args[*]}" -v -f verbose,sshd,createvt$fai_reboot_arg $std_arg $kernel "$host"
 183
 184 # this is needed for autodiscover iso. i'm not sure, it might override
 185 # the fai-chboot method of setting this, i'm not sure.
 186 echo FAI_ACTION=$fai_action >> /srv/fai/config/class/LAST.var