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

   1 #!/bin/bash
   2 # note, this script gets piped to bash, so cant cd to current dir
   3
   4 [[ $EUID == 0 ]] || exec sudo "${BASH_SOURCE}" "$@"
   5
   6 set -eE -o pipefail
   7 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
   8
   9 kgped16=false
  10 bond=false
  11 fai_action=install
  12 fai_reboot_arg=,reboot
  13 while [[ $1 == -* ]]; do
  14   case $1 in
  15     -h|--help)
  16       echo "see help from myfai-chboot"
  17       exit 0
  18       ;;
  19     -S)
  20       fai_action=sysinfo
  21       fai_reboot_arg=
  22       shift
  23       ;;
  24     -i) #inventory
  25       fai_action=inventory
  26       fai_reboot_arg=
  27       shift
  28       ;;
  29     -k)
  30       kgped16=true
  31       shift
  32       ;;
  33     -b)
  34       bond=true
  35       shift
  36       ;;
  37     --no-r)
  38       fai_reboot_arg=
  39       shift
  40       ;;
  41   esac
  42 done
  43
  44 pre="${0##*/}:"
  45 m() { printf "$pre %s\n"  "$*"; "$@"; }
  46 e() { printf "$pre %s\n"  "$*"; }
  47 err() { echo "[$(date +'%Y-%m-%d %H:%M:%S%z')]: $pre: $*" >&2; }
  48
  49 host=$1
  50
  51
  52 rm -f /srv/tftp/fai/pxelinux.cfg/*
  53 if [[ ! $1 ]]; then
  54   echo "$0: clearing pxe config and exiting"
  55   exit 0
  56 fi
  57
  58 # somewhat duplicated in brc hostip()
  59   case $host in
  60     [0-9:])
  61       hostip=$host
  62       ;;
  63     *)
  64       hostip=$(getent ahostsv4 "$host" | awk '{ print $1 }' | head -n1)
  65       ;;
  66   esac
  67
  68
  69 # assuming ipv4, or else we might need to deal with multiple addresses
  70 # in an ipv4 + ipv6 network.
  71 my_ip=$(ip -4 route get $hostip | sed -nr 's,^.*src\s+(\S+).*,\1,p')
  72 if [[ ! $my_ip || $my_ip =~ [[:space:]] ]]; then
  73   echo "$0: error: failed to get \$my_ip, got: $my_ip"
  74   exit 1
  75 fi
  76
  77 if [[ $host == default ]]; then
  78   ip='*'
  79 elif [[ $host == [0-9]*.[0-9]*.[0-9]*.[0-9]* ]]; then
  80   ip=$host/32
  81 else
  82   type -t host &>/dev/null || apt-get -y install dnsutils
  83   ip=$(host $host | sed -rn 's/^\S+ has address //p;T;q' ||:)
  84   if [[ ! $ip || $ip =~ [[:space:]] ]]; then
  85     echo "$0: error: failed to get \$ip, got: $ip"
  86     exit 1
  87   fi
  88   ip=$ip/32
  89   echo "$0: found ip of $host: $ip"
  90 fi
  91
  92 if modprobe nfsd &>/dev/null; then
  93   std_arg="-u nfs://faiserver/srv/fai/config"
  94   # nfsv4 wont do rw with overlayfs yet
  95   # https://lists.uni-koeln.de/pipermail/linux-fai/2017-March/011641.html
  96   root_arg="$my_ip:/srv/fai/nfsroot:vers=3"
  97   # fai-setup without -e sets the ip to the local_ip/local_network, eg 192.168.1.3/24
  98   # I restrict it to one ip as simple but imperfect access control.
  99
 100   # we may chattr +i /etc/exports if we dun want it modified
 101   # for example, if we made these exports more widely available
 102   # while doing multiple installs or a recovery.
 103   if [[ -w /etc/exports ]]; then
 104     sed -ri --follow-symlinks '\%^/srv/fai/%d' /etc/exports
 105     cat >>/etc/exports <<EOF
 106 /srv/fai/config $ip(async,ro,no_subtree_check,no_root_squash)
 107 /srv/fai/nfsroot $ip(async,ro,no_subtree_check,no_root_squash)
 108 EOF
 109     exportfs -ra
 110   fi
 111   systemctl start nfs-server # assumes recent os
 112 else
 113   std_arg="-u http://faiserver:8080/config.tar.gz"
 114   root_arg="live:http://faiserver:8080/squash.img"
 115   /a/exe/web-conf -i -p 8080 - apache2 faiserver <<EOF
 116 <Location />
 117     Deny from all
 118     Allow from $ip
 119 </Location>
 120 EOF
 121 fi
 122
 123
 124
 125 # man page doesn't explain this, but this deletes & thus disables
 126 # all chboot systems.
 127 m fai-chboot -iv $std_arg default # set it to default to get a val out of it next
 128 kernel=$(fai-chboot -L '^default$' | awk '{print $3}')
 129 default_k_args=$(fai-chboot -L '^default$' | \
 130                    sed -r "s/^(\S+\s+){3}(.*)/\2/")
 131 # example of default_k_args
 132 # initrd=initrd.img-3.16.0-4-amd64 ip=dhcp root=192.168.1.3:/srv/fai/nfsroot FAI_CONFIG_SRC=nfs://faiserver/srv/fai/config FAI_ACTION=install
 133
 134 # https://wiki.archlinux.org/index.php/Solid_state_drive#Resolving_NCQ_errors
 135 # currently on needed on d16 samsung 870 qvo, but better to have this
 136 # and not wait for more conditions where its needed.
 137 #k_args=(FAI_ACTION=$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)
 138 #k_args=(FAI_ACTION=$fai_action libata.force=noncq ifname:bootnet0:08:60:6e:10:f0:fe biosdevname=0 bootdev=bootnet0)
 139 k_args=(FAI_ACTION=$fai_action libata.force=noncq)
 140 if $kgped16; then
 141   k_args+=(console=tty0 console=ttyS0,115200)
 142 fi
 143
 144 for arg in $default_k_args; do
 145   case $arg in
 146     # default root arg is /srv/fai/nfsroot
 147     root=*) k_args+=(root=$root_arg) ;;
 148     # note: this works to only dhcp on one interface: ip=eth0:dhcp
 149     ip=*)
 150       if $bond; then
 151         k_args+=("bond=bond0:eth0,eth1:mode=balance-rr ip=bond0:dhcp")
 152       else
 153         k_args+=($arg)
 154       fi
 155       ;;
 156     *) k_args+=($arg) ;;
 157   esac
 158 done
 159 rm -f /srv/tftp/fai/pxelinux.cfg/*
 160 m fai-chboot -k "${k_args[*]}" -v -f verbose,sshd,createvt$fai_reboot_arg $std_arg $kernel "$host"
 161
 162 # this is needed for autodiscover iso. i'm not sure, it might override
 163 # the fai-chboot method of setting this, i'm not sure.
 164 echo FAI_ACTION=$fai_action >> /srv/fai/config/class/LAST.var