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|
package googlecomputeexport
var StartupScript string = `#!/bin/sh
GetMetadata () {
echo "$(curl -f -H "Metadata-Flavor: Google" http://metadata/computeMetadata/v1/instance/attributes/$1 2> /dev/null)"
}
IMAGENAME=$(GetMetadata image_name)
NAME=$(GetMetadata name)
DISKNAME=${NAME}-toexport
PATHS=$(GetMetadata paths)
ZONE=$(GetMetadata zone)
Exit () {
for i in ${PATHS}; do
LOGDEST="${i}.exporter.log"
echo "Uploading exporter log to ${LOGDEST}..."
gsutil -h "Content-Type:text/plain" cp /var/log/daemon.log ${LOGDEST}
done
exit $1
}
echo "####### Export configuration #######"
echo "Image name - ${IMAGENAME}"
echo "Instance name - ${NAME}"
echo "Instance zone - ${ZONE}"
echo "Disk name - ${DISKNAME}"
echo "Export paths - ${PATHS}"
echo "####################################"
echo "Creating disk from image to be exported..."
if ! gcloud compute disks create ${DISKNAME} --image ${IMAGENAME} --zone ${ZONE}; then
echo "Failed to create disk."
Exit 1
fi
echo "Attaching disk..."
if ! gcloud compute instances attach-disk ${NAME} --disk ${DISKNAME} --device-name toexport --zone ${ZONE}; then
echo "Failed to attach disk."
Exit 1
fi
echo "Dumping disk..."
if ! dd if=/dev/disk/by-id/google-toexport of=disk.raw bs=4096 conv=sparse; then
echo "Failed to dump disk to image."
Exit 1
fi
echo "Compressing and tar'ing disk image..."
if ! tar -czf root.tar.gz disk.raw; then
echo "Failed to tar disk image."
Exit 1
fi
echo "Detaching disk..."
if ! gcloud compute instances detach-disk ${NAME} --disk ${DISKNAME} --zone ${ZONE}; then
echo "Failed to detach disk."
fi
FAIL=0
echo "Deleting disk..."
if ! gcloud compute disks delete ${DISKNAME} --zone ${ZONE}; then
echo "Failed to delete disk."
FAIL=1
fi
for i in ${PATHS}; do
echo "Uploading tar'ed disk image to ${i}..."
if ! gsutil -o GSUtil:parallel_composite_upload_threshold=100M cp root.tar.gz ${i}; then
echo "Failed to upload image to ${i}."
FAIL=1
fi
done
Exit ${FAIL}
`
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