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|
#!/bin/bash
set -f
CONTAINER_NAME=""
VERBOSITY=0
TEMP_D=""
error() { echo "$@" 1>&2; }
fail() { [ $# -eq 0 ] || error "$@"; exit 1; }
Usage() {
cat <<EOF
Usage: ${0##*/} [ options ] release name
create a container 'name' with proposed and provided packages.
options:
-i | --install PKGLIST install these packages.
-u | --upgrade PKGLIST update the packages in PKGLIST
either ',' or space delimited
special 'all' means all.
default is 'cloud-init'
-A | --add-archive A add the apt archive via 'apt-add-repository'
-p | --publish publish the result as an image named 'name'
-P | --proposed enable proposed
EOF
}
bad_Usage() { Usage 1>&2; [ $# -eq 0 ] || error "$@"; return 1; }
cleanup() {
[ -z "${TEMP_D}" -o ! -d "${TEMP_D}" ] || rm -Rf "${TEMP_D}"
if [ -n "$CONTAINER_NAME" ]; then
lxc delete --force "$CONTAINER_NAME"
CONTAINER_NAME=""
fi
}
debug() {
local level=${1}; shift;
[ "${level}" -gt "${VERBOSITY}" ] && return
error "${@}"
}
enable_proposed() {
local rel="" line=""
rel=$(lsb_release -sc)
line=$(awk '$1 == "deb" && $2 ~ /ubuntu.com/ {
printf("%s %s %s-proposed main universe\n", $1, $2, rel); exit(0) };
' "rel=$rel" /etc/apt/sources.list)
echo "$line" > "/etc/apt/sources.list.d/proposed.list" ||
{ error "failed enabling proposed with '$line'"; return 1; }
}
add_archives() {
local debline="" rel="$(lsb_release -sc)"
for debline in "$@"; do
debug 1 "enabling $debline"
debline=$(echo "$debline" | sed "s,RELEASE,$rel,")
apt-add-repository -y "$debline" || return
done
}
chrooted() {
local short_opts="aA:hiPu:v"
local long_opts="add-archive:,help,install:,proposed,proxy:,upgrade:,verbose"
local getopt_out=""
getopt_out=$(getopt --name "${0##*/}" \
--options "${short_opts}" --long "${long_opts}" -- "$@") &&
eval set -- "${getopt_out}" ||
{ bad_Usage; return; }
local cur="" next=""
local upgrade="cloud-init" install="" proposed="false" archives=""
archives=( )
echo "$*"
while [ $# -ne 0 ]; do
cur="$1"; next="$2";
case "$cur" in
-A|--add-archive) archives[${#archives[@]}]="$next"; shift;;
-h|--help) Usage ; exit 0;;
-P|--proposed) proposed=true;;
--proxy) proxy=$next; shift;;
-u|--upgrade)
if [ "$next" = "" -o "$next" = "none" ]; then
upgrade=""
else
upgrade="${upgrade:+${upgrade},}$next";
fi
shift;;
-i|--install) install=${install:+${install},}$next; shift;;
-v|--verbose) VERBOSITY=$((${VERBOSITY}+1));;
--) shift; break;;
esac
shift;
done
upgrade=$(echo "$upgrade" | sed 's/,//g')
install=$(echo "$install" | sed 's/,//g')
export http_proxy=${proxy}
if [ "$proposed" = "true" ]; then
enable_proposed || return
fi
add_archives "${archives[@]}" || return
apt-get update -q || return
export DEBIAN_FRONTEND=noninteractive
if [ -n "$install" ]; then
debug 1 "installing: $install"
apt-get install --quiet --assume-yes $install </dev/null || return
fi
if [ -n "$upgrade" -a "$upgrade" != "all" ]; then
debug 1 "upgrading: $upgrade"
apt-get install --quiet --assume-yes --only-upgrade \
$upgrade </dev/null || return
elif [ "$upgrade" = "all" ]; then
debug 1 "dist-upgrading"
apt-get dist-upgrade --quiet --assume-yes </dev/null || return
fi
return 0
}
main() {
local short_opts="aA:hiPpu:v"
local long_opts="add-archive:,help,install:,proposed,proxy:,publish,upgrade:,verbose"
local getopt_out=""
getopt_out=$(getopt --name "${0##*/}" \
--options "${short_opts}" --long "${long_opts}" -- "$@") &&
eval set -- "${getopt_out}" ||
{ bad_Usage; return; }
local cur="" next="" publish="false" vflag="" pt="" proxy="${http_proxy}"
pt=( ) # pass through
while [ $# -ne 0 ]; do
cur="$1"; next="$2";
case "$cur" in
# any key=value passthrough
-A|--add-archive|-u|--upgrade|-i|--install|--proxy)
pt=( "${pt[@]}" "$cur" "$next" ); shift;;
# any flag pass through.
-P|--proposed) pt[${#pt[@]}]="$cur";;
-p|--publish) publish=true;;
-h|--help) Usage ; exit 0;;
-v|--verbose) VERBOSITY=$((${VERBOSITY}+1))
vflag="${vflag:--}v";;
--) shift; break;;
esac
shift;
done
[ $# -eq 0 ] && { bad_Usage "must provide release and name."; return 1; }
[ $# -eq 2 ] || { bad_Usage "Expected 2 args, got $# ($*)"; return; }
local release="$1" cname="$2" pubname="" clean=""
local src="ubuntu-daily:$release"
clean="$cname"
if [ "$publish" = "true" ]; then
pubname="$cname"
cname="${cname}-${RANDOM}${RANDOM}"
clean="$cname"
fi
trap cleanup EXIT
debug 1 "initializing container $cname"
lxc init "$src" "$cname" || {
error "failed to create $cname from $src"
return
}
CONTAINER_NAME="$clean"
local lxc_ver="" cmd=""
lxc_ver=$(lxc --version)
if dpkg --compare-versions $lxc_ver ge 2.17; then
cmd=( lxc-pstart "$cname" -- )
else
# avoid sudo prompt by following doc at:
# https://gist.github.com/smoser/e7d368481687ab39dc08#file-mic-lxd
cmd=( sudo mount-image-callback "lxd:$cname" --system-resolvconf
mchroot -- )
fi
"${cmd[@]}" /bin/bash -s chrooted "$vflag" "${pt[@]}" < "$0" ||
return
if [ "$publish" = "true" ]; then
debug 1 "publishing $cname to alias $pubname"
lxc publish "$cname" local: "--alias=$pubname"
else
CONTAINER_NAME=""
fi
return 0
}
if [ "$1" = "chrooted" ]; then
shift
chrooted "$@"
else
main "$@"
fi
# vi: ts=4 expandtab
|
