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 $1 in
  15     -h|--help)
  16       echo "see help from myfai-chboot"
  17       exit 0
  18       ;;
  19     -S)
  20       fai_action=sysinfo
  21       fai_reboot_arg=
  22       shift
  23       ;;
  24     -i) #inventory
  25       fai_action=inventory
  26       fai_reboot_arg=
  27       shift
  28       ;;
  29     -k)
  30       kgped16=true
  31       shift
  32       ;;
  33     -b)
  34       bond=true
  35       shift
  36       ;;
  37   esac
  38 done
  39
  40 pre="${0##*/}:"
  41 m() { printf "$pre %s\n"  "$*"; "$@"; }
  42 e() { printf "$pre %s\n"  "$*"; }
  43 err() { echo "[$(date +'%Y-%m-%d %H:%M:%S%z')]: $pre: $*" >&2; }
  44
  45 host=$1
  46
  47 rm -f /srv/tftp/fai/pxelinux.cfg/*
  48 if [[ ! $1 ]]; then
  49   echo "$0: clearing pxe config and exiting"
  50   exit 0
  51 fi
  52
  53 # assuming ipv4, or else we might need to deal with multiple addresses
  54 # in an ipv4 + ipv6 network.
  55 my_ip=$(ip -4 route get 8.8.8.8 | sed -nr 's,^.*src\s+(\S+).*,\1,p')
  56 if [[ ! $my_ip || $my_ip =~ [[:space:]] ]]; then
  57   echo "$0: error: failed to get \$my_ip, got: $my_ip"
  58   exit 1
  59 fi
  60
  61 if [[ $host == default ]]; then
  62   ip='*'
  63 elif [[ $host == [0-9]*.[0-9]*.[0-9]*.[0-9]* ]]; then
  64   ip=$host/32
  65 else
  66   type -t host &>/dev/null || apt-get -y install dnsutils
  67   ip=$(host $host | sed -rn 's/^\S+ has address //p;T;q' ||:)
  68   if [[ ! $ip || $ip =~ [[:space:]] ]]; then
  69     echo "$0: error: failed to get \$ip, got: $ip"
  70     exit 1
  71   fi
  72   ip=$ip/32
  73   echo "$0: found ip of $host: $ip"
  74 fi
  75
  76 if modprobe nfsd &>/dev/null; then
  77   std_arg="-u nfs://faiserver/srv/fai/config"
  78   # nfsv4 wont do rw with overlayfs yet
  79   # https://lists.uni-koeln.de/pipermail/linux-fai/2017-March/011641.html
  80   root_arg="$my_ip:/srv/fai/nfsroot:vers=3"
  81   # fai-setup without -e sets the ip to the local_ip/local_network, eg 192.168.1.3/24
  82   # I restrict it to one ip as simple but imperfect access control.
  83
  84   # we may chattr +i /etc/exports if we dun want it modified
  85   # for example, if we made these exports more widely available
  86   # while doing multiple installs or a recovery.
  87   if [[ -w /etc/exports ]]; then
  88     sed -ri --follow-symlinks '\%^/srv/fai/%d' /etc/exports
  89     cat >>/etc/exports <<EOF
  90 /srv/fai/config $ip(async,ro,no_subtree_check,no_root_squash)
  91 /srv/fai/nfsroot $ip(async,ro,no_subtree_check,no_root_squash)
  92 EOF
  93     exportfs -ra
  94   fi
  95   systemctl start nfs-server # assumes recent os
  96 else
  97   std_arg="-u http://faiserver:8080/config.tar.gz"
  98   root_arg="live:http://faiserver:8080/squash.img"
  99   /a/exe/web-conf -i -p 8080 - apache2 faiserver <<EOF
 100 <Location />
 101     Deny from all
 102     Allow from $ip
 103 </Location>
 104 EOF
 105 fi
 106
 107
 108
 109 # man page doesn't explain this, but this deletes & thus disables
 110 # all chboot systems.
 111 m fai-chboot -iv $std_arg default # set it to default to get a val out of it next
 112 kernel=$(fai-chboot -L '^default$' | awk '{print $3}')
 113 default_k_args=$(fai-chboot -L '^default$' | \
 114                    sed -r "s/^(\S+\s+){3}(.*)/\2/")
 115 # example of default_k_args
 116 # initrd=initrd.img-3.16.0-4-amd64 ip=dhcp root=192.168.1.3:/srv/fai/nfsroot FAI_CONFIG_SRC=nfs://faiserver/srv/fai/config FAI_ACTION=install
 117
 118 # https://wiki.archlinux.org/index.php/Solid_state_drive#Resolving_NCQ_errors
 119 # currently on needed on d16 samsung 870 qvo, but better to have this
 120 # and not wait for more conditions where its needed.
 121 #k_args=(FAI_ACTION=$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)
 122 #k_args=(FAI_ACTION=$fai_action libata.force=noncq ifname:bootnet0:08:60:6e:10:f0:fe biosdevname=0 bootdev=bootnet0)
 123 k_args=(FAI_ACTION=$fai_action libata.force=noncq)
 124 if $kgped16; then
 125   k_args+=(console=tty0 console=ttyS0,115200)
 126 fi
 127
 128 for arg in $default_k_args; do
 129   case $arg in
 130     # default root arg is /srv/fai/nfsroot
 131     root=*) k_args+=(root=$root_arg) ;;
 132     # note: this works to only dhcp on one interface: ip=eth0:dhcp
 133     ip=*)
 134       if $bond; then
 135         k_args+=("bond=bond0:eth0,eth1:mode=balance-rr ip=bond0:dhcp")
 136       else
 137         k_args+=($arg)
 138       fi
 139       ;;
 140     *) k_args+=($arg) ;;
 141   esac
 142 done
 143 rm -f /srv/tftp/fai/pxelinux.cfg/*
 144 m fai-chboot -k "${k_args[*]}" -v -f verbose,sshd,createvt$fai_reboot_arg $std_arg $kernel "$host"
 145
 146 # this is needed for autodiscover iso. i'm not sure, it might override
 147 # the fai-chboot method of setting this, i'm not sure.
 148 echo FAI_ACTION=$fai_action >> /srv/fai/config/class/LAST.var