#!/bin/bash
-# Copyright (C) 2011 GRNET S.A.
+# Copyright (C) 2011 GRNET S.A.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
. common.sh
-# Save stderr to a file
-stderr=$(mktemp)
-add_cleanup rm "$stderr"
-exec 2> >(tee -a "$stderr" >&2)
+ganeti_os_main
+
+if [ "$IMAGE_DEBUG" = "yes" ]; then
+ PS4='$(date "+%s.%N ($LINENO) + ")'
+ set -x
+elif [ "$IMAGE_DEBUG" != "no" ]; then
+ log_warning "Unsupported IMAGE_DEBUG value: \`$IMAGE_DEBUG'"
+fi
monitor_pipe=$(mktemp -u)
mkfifo -m 600 "$monitor_pipe"
{ sleep 1; $PROGRESS_MONITOR "$instance" < "$monitor_pipe" ; } &
monitor_pid="$!"
else
- cat "$monitor_pipe" &
+ sed -u 's|^|[MONITOR] |g' < "$monitor_pipe" &
monitor_pid="$!"
fi
exec {MONITOR_FD}>${monitor_pipe}
add_cleanup close_fd ${MONITOR_FD}
-# Ignore sigpipe signals. If progress monitor is dead and snf-image-host tries
-# to output something to the opened pipe, then a sigpipe will be raised. If we
-# do not catch this, the program will terminate.
+# Ignore sigpipe signals. If progress monitor is dead and snf-image tries to
+# output something to the opened pipe, then a sigpipe will be raised. If we do
+# not catch this, the program will terminate.
trap "" SIGPIPE
-trap "report_and_cleanup $(printf "%q" "$stderr") ${MONITOR_FD}" EXIT
+trap report_and_cleanup EXIT
-ganeti_os_main
+echo "Processing image with ID: \`$IMG_ID' and type: \`$IMAGE_TYPE'" >&2
case $BACKEND_TYPE in
local)
- image_file="$IMAGE_DIR/$(echo "$IMAGE_NAME" | sed 's/^file://').$IMAGE_TYPE"
+ if [[ "$IMAGE_NAME" =~ ^local:// ]]; then
+ IMAGE_NAME="${IMAGE_NAME:8}"
+ elif [[ "$IMAGE_NAME" =~ ^file:// ]]; then
+ IMAGE_NAME="${IMAGE_NAME:7}"
+ log_warning "The file:// back-end identifier is deprecated and" \
+ "will be removed in the future. Use local:// instead."
+ fi
+
+ canonical_image_dir="$(canonicalize "$IMAGE_DIR")"
+ if [ ! -d "$canonical_image_dir" ]; then
+ log_error "The IMAGE_DIR directory: \`$IMAGE_DIR' does not exist."
+ report_error "Unable to retrieve image file."
+ fi
+
+ image_file="$IMAGE_DIR/$IMAGE_NAME"
if [ ! -e "$image_file" ]; then
- log_error "Image file \`$image_file' does not exit."
+ if [ -e "$image_file.$IMAGE_TYPE" ] ; then
+ image_file="$image_file.$IMAGE_TYPE"
+ log_warning "The \`.$IMAGE_TYPE' extension is missing from" \
+ "the local back-end id. This id form is deprecated and" \
+ " will be remove in the future."
+ else
+ log_error "Image file \`$image_file' does not exist."
+ report_error "Unable to retrieve image file."
+ exit 1
+ fi
+ fi
+
+ canonical_image_file="$(canonicalize "$image_file")"
+
+ if [[ "$canonical_image_file" != "$canonical_image_dir"* ]]; then
+ log_error "Image ID points to a file outside the image directory: \`$IMAGE_DIR'"
+ report_error "Invalid image ID"
exit 1
fi
+
image_size="$(stat -L -c %s "$image_file")"
;;
+ null)
+ image_file=/dev/null
+ image_size=0
+ # Treat it as local file from now on...
+ BACKEND_TYPE="local"
+ ;;
network)
- image_cmd="$CURL $(printf "%q" "$IMAGE_NAME") 2> /dev/null"
+ image_cmd="$CURL $(printf "%q" "$IMAGE_NAME")"
image_size=$($CURL -sI "$IMAGE_NAME" | grep ^Content-Length: | cut -d" " -f2)
;;
pithos)
- cmd_args="--db $(printf "%q" "${PITHOS_DB}") \
- --data $(printf "%q" "${PITHOS_DATA}") \
- $(printf "%q" "${IMAGE_NAME}")"
+ # For security reasons pass the database url to pithcat as an
+ # environmental variable.
+ export PITHCAT_INPUT_DB="$PITHOS_DB"
+ export PITHCAT_INPUT_DATA="$PITHOS_DATA"
+ cmd_args="$(printf "%q" "${IMAGE_NAME}")"
image_cmd="./pithcat $cmd_args"
image_size=$(./pithcat -s $cmd_args)
;;
;;
*)
log_error "Unknown Image format: \`$IMAGE_TYPE'"
+ report_error "Unknown Image Format"
exit 1
;;
esac
+report_info "Starting image copy..."
monitor="./copy-monitor.py -o $MONITOR_FD -r $image_size"
if [ "$BACKEND_TYPE" = "local" ]; then
# dd the dump to its new home :-)
else
$image_cmd | $monitor dd bs=4M of="$target" oflag=direct
fi
+report_info "Image copy finished."
# Create a floppy image
floppy=$(mktemp --tmpdir floppy.XXXXXX)
add_cleanup rm "$floppy"
-snf_export_DEV=/dev/vda
snf_export_TYPE="$IMG_FORMAT"
snf_export_PASSWORD="$IMG_PASSWD"
snf_export_HOSTNAME="$instance"
snf_export_PERSONALITY="$IMG_PERSONALITY"
fi
-create_floppy "$floppy"
-
-# Invoke the helper vm to do the dirty job...
-jail=$(mktemp -d --tmpdir tmpfsXXXXXXX)
-add_cleanup rmdir "$jail"
-
-mount tmpfs -t tmpfs "$jail" -o size=50M
-add_cleanup umount "$jail"
-
-result_file=$(mktemp --tmpdir="$jail" result.XXXXXX)
-add_cleanup rm "$result_file"
-
-snapshot=$(mktemp --tmpdir="$jail" helperXXXXXX.img)
-add_cleanup rm "$snapshot"
-
-"$QEMU_IMG" create -f qcow2 -b "$HELPER_IMG" "$snapshot"
-
-echo "$(date +%Y:%m:%d-%H:%M:%S.%N) Starting helper VM..."
-set +e
-$TIMEOUT -k "$HELPER_HARD_TIMEOUT" "$HELPER_SOFT_TIMEOUT" \
- kvm -runas "$HELPER_USER" -drive file="$snapshot" \
- -drive file="$blockdev",format=raw,if=virtio,cache=none \
- -boot c -serial stdio -serial "file:$(printf "%q" "$result_file")" \
- -serial "file:$(printf "%q" "$monitor_pipe")" \
- -fda "$floppy" -vga none -nographic -parallel none -monitor null \
- -kernel "$HELPER_KERNEL" -initrd "$HELPER_INITRD" \
- -append "quiet ro root=/dev/sda1 console=ttyS0,9600n8 snf_image_activate_helper" \
- 2>&1 | sed 's|^|HELPER: |g'
-rc=$?
-set -e
-if [ $rc -ne 0 ]; then
- if [ $rc -eq 124 ]; then
- log_error "Helper VM was terminated. Did not finish on time."
- if [ $rc -eq 137 ]; then # (128 + SIGKILL)
- log_error "Helper VM was killed. Did not finish on time."
- elif [ $rc -eq 141 ]; then # (128 + SIGPIPE)
- log_error "Helper was killed by a SIGPIPE signal."
- log_error "Maybe progress monitor has died unexpectedly."
- elif [ $rc -eq 125 ]; then
- log_error "timeout did not manage to run."
- else
- log_error "KVM returned an error (return code $rc)."
- fi
- exit 1
-else
- echo "$(date +%Y:%m:%d-%H:%M:%S.%N) Helper VM finished."
-fi
+snf_export_DEV=$(get_img_dev)
-# Do not report errors after this. If the result is not "SUCCESS" then the
-# helper VM should have reported the error.
-trap cleanup EXIT
+create_floppy "$floppy"
-# Read the first line. This will remove \r and \n chars
-result=$(sed 's|\r||g' "$result_file" | head -1)
+launch_helper "$blockdev" "$floppy"
-if [ "x$result" != "xSUCCESS" ]; then
- log_error "Helper VM returned error:"
- log_error "$result"
- exit 1
-fi
+report_info "Image customization finished successfully."
# Execute cleanups
cleanup
projects / snf-image / blobdiff