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lxc-alpine: add support for setting arch from command line

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This allows us to lxc-create 32 bit guests on x86_64 hosts.

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>
This commit is contained in:
Natanael Copa 2012-12-31 20:49:18 +01:00 committed by Stéphane Graber
parent e5846a6f89
commit 2b49de9a3f
1 changed files with 26 additions and 2 deletions
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28
templates/lxc-alpine.in
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@ -9,7 +9,11 @@ install_alpine() {
else
cp /etc/apk/repositories "$rootfs"/etc/apk/repositories || return 1
fi
${APK:-apk} add -U --initdb --root $rootfs alpine-base
opt_arch=
if [ -n "$apk_arch" ]; then
opt_arch="--arch $apk_arch"
fi
${APK:-apk} add -U --initdb --root $rootfs $opt_arch alpine-base
}
configure_alpine() {
@ -68,6 +72,9 @@ copy_configuration() {
grep -q "^lxc.rootfs" $path/config 2>/dev/null \
|| echo "lxc.rootfs = $rootfs" >> $path/config
if [ -n "$lxc_arch" ]; then
echo "lxc.arch = $lxc_arch" >> $path/config
fi
cat <<EOF >> $path/config
lxc.tty = 4
lxc.pts = 1024
@ -120,7 +127,7 @@ die() {
usage() {
cat >&2 <<EOF
Usage: $(basename $0) [-h|--help] [-r|--repository <url>]
Usage: $(basename $0) [-h|--help] [-r|--repository <url>] [-a|--arch <arch>]
-p|--path <path> -n|--name <name>
EOF
}
@ -161,6 +168,11 @@ while [ $# -gt 0 ]; do
repository=$1
shift
;;
-a|--arch)
optarg_check $opt "$1"
arch=$1
shift
;;
--)
break;;
--*=*)
@ -193,6 +205,18 @@ if [ -z "$rootfs" ]; then
rootfs="${path}/rootfs"
fi
lxc_arch=$arch
apk_arch=$arch
case "$arch" in
i[3-6]86)
apk_arch=x86;;
x86)
lxc_arch=i686;;
x86_64|"") ;;
*) die "unsupported architecture: $arch";;
esac
install_alpine "$rootfs" || die "Failed to install rootfs for $name"
configure_alpine "$rootfs" "$name" || die "Failed to configure $name"
copy_configuration "$path" "$rootfs" "$name"