diff options
Diffstat (limited to 'testModule/scripts')
| -rwxr-xr-x | testModule/scripts/prepare-disks | 98 | ||||
| -rwxr-xr-x | testModule/scripts/setup-qcow2 | 41 |
2 files changed, 124 insertions, 15 deletions
diff --git a/testModule/scripts/prepare-disks b/testModule/scripts/prepare-disks new file mode 100755 index 00000000..28113cc7 --- /dev/null +++ b/testModule/scripts/prepare-disks @@ -0,0 +1,98 @@ +#!/bin/bash +############################################################################### +# GLOBALS +# + +declare -rg FLAG="/tmp/openslx.disks" +declare -rg OPENSLX_SYS_MOUNT="/opt/openslx/system" + +# +# END GLOBALS +############################################################################### + +############################################################################### +# FUNCTION DEFINITIONS +# +# helper to mount the OPENSLX_SYS partition to /opt/openslx/system +# Usage: mount_sys_part <path_to_sys_partition> +mount_sys_part() { + if [ ! -b "$1" ]; then + warn "'$1' is not a block device?" + echo "!block: $1" >> /tmp/openslx.disks.log + return 1 + fi + + local OPENSLX_SYS_DEVICE="$1" + mkdir -p ${OPENSLX_SYS_MOUNT} + if ! mount -t auto "${OPENSLX_SYS_DEVICE}" "${OPENSLX_SYS_MOUNT}"; then + warn "Mounting '${OPENSLX_SYS_DEVICE}' to '${OPENSLX_SYS_MOUNT}' failed." + echo "mount phail" >> /tmp/openslx.disks.log + return 1 + fi + echo "ZOMG" >> /tmp/openslx.disks.log + return 0 + +} +# +# END FUNCTION DEFINITIONS +############################################################################### + +############################################################################### +# MAIN CODE +# + +command -v warn >/dev/null || . /lib/dracut-lib.sh + +# let check the arguments +if [ "$#" -ne 2 ]; then + warn "'$0' need 2 arguments: '$0 [OPENSLX_SYS|OPENSLX_TMP] <dev_path>'" + echo "Not enough args!" >> /tmp/openslx.disks.log + exit 1 +fi +# $1 sane? +if [ "x$1" != "xOPENSLX_SYS" ] && [ "x$1" != "xOPENSLX_TMP" ]; then + warn "First arg needs to be either 'OPENSLX_SYS' or 'OPENSLX_TMP'." + warn "Given: $1" + echo "OPENSLX? $1" >> /tmp/openslx.disks.log + exit 1 +fi +# $2 sane? +if [ ! -b "/dev/$2" ]; then + warn "Second arg appears not to be a block device!" + echo "block? $2" >> /tmp/openslx.disks.log + exit 1 +fi + +# ok all seems well +PART_TYPE="$1" +PART_DEV="/dev/$2" + +# lets check if we are already running +INSTANCES="$(grep "$PART_TYPE" "$FLAG" | busybox wc -l)" +if [ "$INSTANCES" -ge 1 ]; then + # uhoh we are not alone! + warn "'$0' already running for $PART_TYPE ... ignoring." + echo "already running for $PART_TYPE" >> /tmp/openslx.disks.log + exit 1 +fi + +# now comes the funny part. We write our pid to $FLAG in order to make sure +# we are the only instance of this script running. +echo "$PART_TYPE.$$" >> "$FLAG" + +# if we are still here, then we can go on and process the partition +echo "Processing: $PART_TYPE -> $PART_DEV" >> /tmp/openslx.disks.log + +if [ "$PART_TYPE" = "OPENSLX_TMP" ]; then + # mark it for later mounting! + echo "$PART_DEV" > /tmp/openslx.disk.tmp + exit 0 +fi +if [ "$PART_TYPE" = "OPENSLX_SYS" ]; then + # mount it now, since qemu-nbd needs it asap! + exit $(mount_sys_part "$PART_DEV") +fi + +# +# END MAIN CODE +############################################################################### diff --git a/testModule/scripts/setup-qcow2 b/testModule/scripts/setup-qcow2 index ba1ef6b1..b14ccd87 100755 --- a/testModule/scripts/setup-qcow2 +++ b/testModule/scripts/setup-qcow2 @@ -2,6 +2,7 @@ # 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 @@ -12,6 +13,7 @@ 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 +51,18 @@ 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 "$QCOW_CONTAINER" ] && return 0 # we did not, let's create it if ! qemu-img create -f qcow2 -o \ - backing_file="$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 +77,7 @@ 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 +104,26 @@ 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! |