6c997fda97
The fedora element downloads images too, so we should re-use the caching code from the ubuntu element. There doesn't seem to be other examples of code shared between root.d scripts. In the fedora and dpkg elements we copy install-packages into the chroot, but that model doesn't apply when we're running scripts outside of the chroot. Seems sane to just run it directly from the bin/ dir in the temporary hooks directory. Change-Id: Iaa6aca660042fea323cab4271633a4bdbbc271b8
53 lines
2 KiB
Bash
Executable file
53 lines
2 KiB
Bash
Executable file
#!/bin/bash
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set -e
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[ -n "$ARCH" ]
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[ -n "$TARGET_ROOT" ]
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if [ 'amd64' = "$ARCH" ] ; then
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ARCH="x86_64"
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fi
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IMG_PATH=~/.cache/image-create
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DIB_CLOUD_IMAGES=${DIB_CLOUD_IMAGES:-http://mattdm.fedorapeople.org/cloud-images/}
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DIB_RELEASE=${DIB_RELEASE:-Fedora18}
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BASE_IMAGE_FILE=${BASE_IMAGE_FILE:-$DIB_RELEASE-Cloud-$ARCH-latest.qcow2}
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BASE_IMAGE_TAR=$DIB_RELEASE-Cloud-$ARCH-latest.tgz
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echo "Fetching Base Image"
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$TMP_HOOKS_PATH/bin/cache-url $DIB_CLOUD_IMAGES/$BASE_IMAGE_FILE $IMG_PATH/$BASE_IMAGE_FILE
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if [ ! -f $IMG_PATH/$BASE_IMAGE_TAR -o \
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$IMG_PATH/$BASE_IMAGE_FILE -nt $IMG_PATH/$BASE_IMAGE_TAR ] ; then
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echo "Repacking base image as tarball."
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WORKING=$(mktemp -d)
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EACTION="rm -r $WORKING"
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trap "$EACTION" EXIT
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echo "Working in $WORKING"
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RAW_FILE=$(basename $BASE_IMAGE_FILE)
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RAW_FILE=${RAW_FILE#.qcow2}.raw
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qemu-img convert -f qcow2 -O raw $IMG_PATH/$BASE_IMAGE_FILE $WORKING/$RAW_FILE
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# WARNING: The mattdm image has the root filesystem on the second
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# partition (p2). If he changes the image the MAGIC_BIT
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# might also need to change.
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MAGIC_BIT=p2
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# XXX: Parsing stdout is dangerous, would like a better way to discover
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# the device used for the image.
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# NOTE: On F17 (parted-3.0-10.fc17.x86_64), partprobe of
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# /dev/loop0 does not create /dev/loop0p2, while kpartx at
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# least creates /dev/mapper/loop0p2.
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LOOPDEV=$(sudo kpartx -avr $WORKING/$RAW_FILE | awk "/loop[0-9]+$MAGIC_BIT/ {print \$3}")
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EACTION="sudo kpartx -d $WORKING/$RAW_FILE;$EACTION"
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trap "$EACTION" EXIT
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mkdir $WORKING/mnt
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sudo mount /dev/mapper/$LOOPDEV $WORKING/mnt
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EACTION="sudo umount -f $WORKING/mnt;$EACTION"
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trap "$EACTION" EXIT
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# Chroot in so that we get the correct uid/gid
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sudo chroot $WORKING/mnt bin/tar -cz . > $WORKING/tmp.tar
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mv $WORKING/tmp.tar $IMG_PATH/$BASE_IMAGE_TAR
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fi
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# Extract the base image
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sudo tar -C $TARGET_ROOT -xzf $IMG_PATH/$BASE_IMAGE_TAR
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sudo rmdir $TARGET_ROOT/lost+found
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