xfnw/alpine-make-vm-image
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Install packages on host system only if it's Alpine

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This commit is contained in:
Jakub Jirutka 2017-10-11 18:47:35 +02:00
parent ac501b16fa
commit 61790283f5
1 changed files with 20 additions and 4 deletions
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24
alpine-make-vm-image
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@ -4,6 +4,11 @@
# Usage: alpine-make-vm-image [options] [--] <image> [<script> [<script-opts...>]]
#
# This script creates a bootable Alpine Linux disk image for virtual machines.
# If running on Alpine system (detected by file /etc/alpine-release), then it
# also installs needed packages on the host system. On other systems you must
# install them yourself: qemu-img, qemu-nbd, syslinux, and mkfs utility for the
# chosen ROOTFS.
#
# Note that it does not create any partitions (it's really not needed),
# filesystem is created directly on the image.
#
@ -96,7 +101,10 @@ cleanup() {
fi
qemu-nbd --disconnect "$nbd_dev" \
|| die "Failed to disconnect $nbd_dev; disconnect it manually"
_apk del $VIRTUAL_PKG
if [ "$INSTALL_HOST_PKGS" = yes ]; then
_apk del $VIRTUAL_PKG
fi
}
_apk() {
@ -262,6 +270,12 @@ done
: ${ROOTFS:="ext4"}
: ${SCRIPT_CHROOT:="no"}
if [ -f /etc/alpine-release ]; then
: ${INSTALL_HOST_PKGS:="yes"}
else
: ${INSTALL_HOST_PKGS:="no"}
fi
[ $# -ne 0 ] || help 1 >&2
IMAGE_FILE="$1"; shift
@ -271,10 +285,12 @@ SCRIPT=
[ "$CLEANUP" = no ] || trap cleanup EXIT HUP INT TERM
#-----------------------------------------------------------------------
einfo 'Installing needed packages on host system'
if [ "$INSTALL_HOST_PKGS" = yes ]; then
einfo 'Installing needed packages on host system'
_apk add -t $VIRTUAL_PKG qemu qemu-img syslinux
install_fs_tools "$ROOTFS"
_apk add -t $VIRTUAL_PKG qemu qemu-img syslinux
install_fs_tools "$ROOTFS"
fi
#-----------------------------------------------------------------------
if [ ! -f "$IMAGE_FILE" ]; then