diff options
Diffstat (limited to 'main/lxc/setup-lxc-guest')
| -rwxr-xr-x | main/lxc/setup-lxc-guest | 282 |
1 files changed, 0 insertions, 282 deletions
diff --git a/main/lxc/setup-lxc-guest b/main/lxc/setup-lxc-guest deleted file mode 100755 index 0519ae0299..0000000000 --- a/main/lxc/setup-lxc-guest +++ /dev/null @@ -1,282 +0,0 @@ -#!/bin/sh - -# simple script to set up a new lxc guest -# test the first argument against the remaining ones, return success on a match -isin() { - local _a=$1 _b - - shift - for _b; do - [ "$_a" = "$_b" ] && return 0 - done - return 1 -} - -# remove all occurrences of first argument from list formed by -# the remaining arguments -rmel() { - local _a=$1 _b - - shift - for _b; do - [ "$_a" != "$_b" ] && echo -n "$_b " - done -} - -# Issue a read into the global variable $resp. -_ask() { - local _redo=0 - - read resp - case "$resp" in - !) echo "Type 'exit' to return to setup." - sh - _redo=1 - ;; - !*) eval "${resp#?}" - _redo=1 - ;; - esac - return $_redo -} - -# Ask for user input. -# -# $1 = the question to ask the user -# $2 = the default answer -# -# Save the user input (or the default) in $resp. -# -# Allow the user to escape to shells ('!') or execute commands -# ('!foo') before entering the input. -ask() { - local _question=$1 _default=$2 - - while :; do - echo -n "$_question " - [ -z "$_default" ] || echo -n "[$_default] " - _ask && : ${resp:=$_default} && break - done -} - -# Ask for user input until a non-empty reply is entered. -# -# $1 = the question to ask the user -# $2 = the default answer -# -# Save the user input (or the default) in $resp. -ask_until() { - resp= - while [ -z "$resp" ] ; do - ask "$1" "$2" - done -} - -# Ask for the user to select one value from a list, or 'done'. -# -# $1 = name of the list items (disk, cd, etc.) -# $2 = question to ask -# $3 = list of valid choices -# $4 = default choice, if it is not specified use the first item in $3 -# -# N.B.! $3 and $4 will be "expanded" using eval, so be sure to escape them -# if they contain spooky stuff -# -# At exit $resp holds selected item, or 'done' -ask_which() { - local _name=$1 _query=$2 _list=$3 _def=$4 _dynlist _dyndef - - while :; do - # Put both lines in ask prompt, rather than use a - # separate 'echo' to ensure the entire question is - # re-ask'ed after a '!' or '!foo' shell escape. - eval "_dynlist=\"$_list\"" - eval "_dyndef=\"$_def\"" - - # Clean away whitespace and determine the default - set -o noglob - set -- $_dyndef; _dyndef="$1" - set -- $_dynlist; _dynlist="$*" - set +o noglob - [ $# -lt 1 ] && resp=done && return - - : ${_dyndef:=$1} - echo "Available ${_name}s are: $_dynlist." - echo -n "Which one $_query? (or 'done') " - [ -n "$_dyndef" ] && echo -n "[$_dyndef] " - _ask || continue - [ -z "$resp" ] && resp="$_dyndef" - - # Quote $resp to prevent user from confusing isin() by - # entering something like 'a a'. - isin "$resp" $_dynlist done && break - echo "'$resp' is not a valid choice." - done -} - -# Ask for user input until a non-empty reply is entered. -# -# $1 = the question to ask the user -# $2 = the default answer -# -# Save the user input (or the default) in $resp. -ask_until() { - resp= - while [ -z "$resp" ] ; do - ask "$1" "$2" - done -} - -# http://en.wikipedia.org/wiki/Hostname#Restrictions_on_valid_host_names -valid_hostname() { - # check length - if [ $(echo "$1" | wc -c) -gt 63 ]; then - echo "Hostname '$1' is too long." - return 1 - fi - # check that it only contains valid chars - if ! [ -z "$(echo $1 | sed 's/[0-9a-z-]//g')" ]; then - echo "Hostname must only contain letters (a-z), digits (0-9) or -" - return 1 - fi - # must not start with - - case "$1" in - -*) echo "Hostname must not start with a '-'"; return 1;; - esac - return 0 -} - -# return last ipv4 address and mask -# -# $1 = interface -# -last_ipv4_addr_mask() { - local _iface=$1 - ip addr show dev $_iface | awk '$1 == "inet" {print $2}' | tail -n1 -} - -valid_ip_and_prefix() { - [ "$1" ] || return 0 - ipcalc -s -m $1 >/dev/null 2>&1 && ! ipcalc -s -m $1/0 >/dev/null 2>&1 -} - -# ask for hostname -# -# $1 = default -# -# retrusn hostname in global var $resp -# -ask_hostname() { - while true; do - ask "Hostname for new lxc container:" $1 - if [ -d /var/lib/lxc/$resp ]; then - echo "/var/lib/lxc/$resp already exist" - continue - fi - if [ -d /lxc/$resp ]; then - echo "/lxc/$resp already exist" - continue - fi - valid_hostname $resp && break - done -} - -ask_ifaceopts() { - # get ip address(es) - resp= - local ifaceopts= _def= _iface= - local ifaces=$(ip addr | awk -F: '$1 ~ /^[0-9]/ {printf "%s" $2} END {printf "\n"}') - local last_iface=$(echo $ifaces | sed 's/.* //') - while [ "$resp" != "done" ]; do - if [ -z "$ifaces" ] || [ "$ifaces" = "lo " ] || [ -n "$ifaceopts" ]; then - _def="done" - else - _def=$(echo $ifaces | sed 's/.* //') - fi - ask_which "network interface" "to use for $_hostname" \ - "$ifaces" $_def - [ "$resp" = "done" ] && break - - _iface=$resp - ifaces=$(rmel $_iface $ifaces) - # suggested ip by last digit + 1 - _last_ip_mask=$(last_ipv4_addr_mask $_iface) - _last_ip=${_last_ip_mask%/*} - _last_ip_digit=${_last_ip##*.} - _ip=${_last_ip%.*}.$((($_last_ip_digit + 1) % 256)) - _mask=${_last_ip_mask#*/} - while true; do - ask "Enter IP address/mask for $_iface:" $_ip/$_mask - valid_ip_and_prefix "$resp" 2>&1 && break - echo "$resp is not a valid IPv4 address/mask" - done - _ip_mask=$resp - ifaceopts="$ifaceopts --interface $_iface:$_ip_mask" - echo "lxc.network.ipv4 = $_iface/$_ip_mask" >> /tmp/lxc-$hostname.conf - conffile=/tmp/lxc-$hostname.conf - done - resp="$conffile" -} - -ask_template() { - local temp - # get template - while true; do - ask "Enter template file (or empty for generate a new):" \ - $_template - if [ -z "$resp" ] || [ -r "$resp" ]; then - break - fi - echo "Can not read $resp" - done - temp=$resp - if [ -z "$temp" ]; then - temp=/tmp/template.tar.gz - echo "Generating template..." - if setup-lxc-template -q -o $temp; then - echo "ok" - else - echo "Failed to create template" - exit 1 - fi - fi - resp=$temp -} - -usage() { - echo "Usage: ${0##*/} [-h] [HOSTNAME...]" - exit 1 -} - -while getopts "h" opt; do - case "$opt" in - h) usage;; - ?) usage;; - esac -done - -shift $(($OPTIND - 1)) - -if [ "$(whoami)" != "root" ]; then - echo "Need to be root. Sorry." - exit 1 -fi - -while true; do - ask_hostname $1 - _hostname=$resp - - ask_ifaceopts - _conffile=$resp - - ask_template - _template=$resp - - lxc-create -n $_hostname \ - -f $_conffile \ - -t "$_template" \ - || exit 1 - - shift - [ $# -le 0 ] && exit 0 -done |