diff options
Diffstat (limited to 'builder/dnbd3-rootfs/scripts')
| -rwxr-xr-x | builder/dnbd3-rootfs/scripts/prepare-persistent-disks (renamed from builder/dnbd3-rootfs/scripts/prepare-disks) | 0 | ||||
| -rwxr-xr-x | builder/dnbd3-rootfs/scripts/setup-qcow2 | 137 |
2 files changed, 0 insertions, 137 deletions
diff --git a/builder/dnbd3-rootfs/scripts/prepare-disks b/builder/dnbd3-rootfs/scripts/prepare-persistent-disks index 2e68dd9e..2e68dd9e 100755 --- a/builder/dnbd3-rootfs/scripts/prepare-disks +++ b/builder/dnbd3-rootfs/scripts/prepare-persistent-disks diff --git a/builder/dnbd3-rootfs/scripts/setup-qcow2 b/builder/dnbd3-rootfs/scripts/setup-qcow2 deleted file mode 100755 index 70babc17..00000000 --- a/builder/dnbd3-rootfs/scripts/setup-qcow2 +++ /dev/null @@ -1,137 +0,0 @@ -#!/usr/bin/bash - -# dracut-lib to use debugging functions -command -v warn >/dev/null || . /lib/dracut-lib.sh -command -v emergency_shell >/dev/null || . /lib/dracut-lib.sh - -############################################################################### -# GLOBALS -# -# TODO make this configurable -[ -f /opt/openslx/config ] && . /opt/openslx/config -[ -z $SLX_DNBD3_SERVER ] && SLX_DNBD3_SERVER="132.230.4.1" -[ -z $SLX_STAGE4 ] && SLX_STAGE4="stage4/joe/centos7" -[ -z $SLX_STAGE4_RID ] && SLX_STAGE4_RID="4" -declare -rg DNBD3_SERVER="$SLX_DNBD3_SERVER" -declare -rg DNBD3_IMAGE="$SLX_STAGE4" -declare -rg DNBD3_RID="$SLX_STAGE4_RID" -declare -rg DNBD3_DEVICE="/dev/dnbd0" -declare -rg QCOW_CONTAINER="/opt/openslx/system/system.qcow2" -# -# END GLOBALS -############################################################################### - -############################################################################### -# FUNCTION DEFINITIONS -# -# helper to do some sanity checks -check_dnbd3() { - if [ ! command -v "dnbd3-client" >/dev/null ]; then - warn "No 'dnbd3-client' found. Was the initramfs built correctly?" - emergency_shell -n "Error in $0" - return 1 - fi - return 0 -} - -# helper to connect to the dnbd3-server -connect_dnbd3() { - # check if it already connected - local current_image_name="$(cat /sys/block/${DNBD3_DEVICE#/dev/}/net/image_name)" - [ "x${current_image_name}" != "x(null)" ] && return 0 - - # not connected yet, do it - if ! dnbd3-client -h "${DNBD3_SERVER}" \ - -i "${DNBD3_IMAGE}" \ - -r "${DNBD3_RID}" \ - -d "${DNBD3_DEVICE}" ; then - warn "Failed to mount $DNBD3_IMAGE from $DNBD3_SERVER to $DNBD3_DEVICE" - emergency_shell -n "Error in $0" - return 1 - fi - return 0 -} - -# helper to create the qcow2 container file using -# DNBD3_DEVICE as the base of the filesystem -# QCOW_CONTAINER as the writable file -# (our future rootfs) -create_qcow() { - # check if we already created the qcow2-container - [ -e "$QCOW_CONTAINER" ] && return 0 - - # check if we have our target directory, if not create it - [ ! -d "$(busybox dirname $QCOW_CONTAINER)" ] && \ - mkdir -p "$(busybox dirname $QCOW_CONTAINER)" - - # we did not, let's create it - if ! qemu-img create -f qcow2 -o \ - backing_file="$DNBD3_DEVICE",backing_fmt=qcow2 "$QCOW_CONTAINER"; then - warn "Failed to create qcow2-Container from $DNBD3_DEVICE" - emergency_shell -n "Error in $0" - rm -f -- "$QCOW_CONTAINER" - return 1 - fi - return 0 -} -# helper to start qemu-nbd on localhost:2000 -# use our wrapper to set argv[0][0] to '@' -# this keeps qemu-nbd running after switching root -export_qcow() { - # check if we already have a qemu-nbd - if [ -e /tmp/qemu-nbd.pid ]; then - kill -0 $(cat /tmp/qemu-nbd.pid) && return 0 - fi - # since we use the wrapper, we need a little more logic to see if it runs - /usr/bin/systemd-preserve-process-marker \ - /usr/bin/qemu-nbd -t -p 2000 "$QCOW_CONTAINER" & - # the wrapper returns 255 if the qemu-nbd binary is missing - local qemu_nbd_pid="$!" - for i in 0.5 1 2; do - sleep $i - if ! kill -0 $qemu_nbd_pid; then - # not running - wait $qemu_nbd_pid - local ret_wrapper="$?" - if [ "${ret_wrapper}" -eq 127 ]; then - # wrapper was not found by bash - warn "No such file or directory: /usr/bin/systemd-preserve-process-marker" - elif [ "${ret_wrapper}" -eq 255 ]; then - # qemu-nbd was not found - warn "No such file or directory: /usr/bin/qemu-nbd" - fi - emergency_shell -n "Error in $0" - return 1 - else - # all good, qemu-nbd is running, remember its pid - echo $qemu_nbd_pid > /tmp/qemu-nbd.pid - return 0 - fi - done - # fallback - return 1 -} -# helper to mount the qcow2-container per nbd -connect_qcow() { - # try to mount the locally exported qcow2-container using nbd-client - if /usr/bin/systemd-preserve-process-marker \ - nbd-client --persist 127.0.0.1 2000 /dev/nbd0; then - # it worked, lets set the symlink to /dev/root as dracut needs it - # later on to mount that device to the future root (/sysroot) - ln -sf /dev/nbd0 /dev/root - return 0 - else - # this is pretty bad, dracut would spawn an emergency later on - # since there is no /dev/root to mount. - # For debugging purposes, we drop an emergency shell ourselves - # if the mount fails. - warn "Could not mount /dev/nbd0 from 127.0.0.1:2000." - emergency_shell -n "Error in $0" - return 1 - fi -} -# -# END FUNCTION DEFINITIONS -############################################################################### - -# No main, use functions! |