diff options
Diffstat (limited to 'testModule/scripts/setup-qcow2')
| -rwxr-xr-x | testModule/scripts/setup-qcow2 | 54 |
1 files changed, 36 insertions, 18 deletions
diff --git a/testModule/scripts/setup-qcow2 b/testModule/scripts/setup-qcow2 index ba1ef6b1..cc74457b 100755 --- a/testModule/scripts/setup-qcow2 +++ b/testModule/scripts/setup-qcow2 @@ -2,16 +2,21 @@ # 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 DNBD3_SERVER="132.230.4.1" -declare -rg DNBD3_IMAGE="stage4/joe/centos7" -declare -rg DNBD3_RID="4" +declare -rg QCOW_CONTAINER="/opt/openslx/system/system.qcow2" # # END GLOBALS ############################################################################### @@ -49,18 +54,22 @@ connect_dnbd3() { # helper to create the qcow2 container file using # DNBD3_DEVICE as the base of the filesystem -# /run/test.qcow2 as the writable file +# QCOW_CONTAINER as the writable file # (our future rootfs) create_qcow() { # check if we already created the qcow2-container - [ -e /run/test.qcow2 ] && return 0 + [ -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 /run/test.qcow2; then + backing_file="$DNBD3_DEVICE",backing_fmt=qcow2 "$QCOW_CONTAINER"; then warn "Failed to create qcow2-Container from $DNBD3_DEVICE" emergency_shell -n "Error in $0" - rm -f -- /run/test.qcow2 + rm -f -- "$QCOW_CONTAINER" return 1 fi return 0 @@ -75,7 +84,7 @@ export_qcow() { 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 /run/test.qcow2 & + /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 @@ -102,17 +111,26 @@ export_qcow() { # 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 nbd-client --systemd-mark --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 ############################################################################### -############################################################################### -# MAIN CODE -# -#check_dnbd3 || return 1 -connect_dnbd3 || exit 1 -create_qcow || exit 1 -export_qcow || exit 1 - -# all good, we are done :) -exit 0 +# No main, use functions! |